Database Users

How modify a qcn file to enable AWS band

Hi.
I come from another post looking for a solution to my dilemma (http://forum.xda-developers.com/galaxy-s5/help/switch-stock-rom-t2866861#post55236673), thanks to fffft member found that I can open the band 4 of my cell S5 using the QPST program, however I can not find a modified .qcn file that corresponds to my model (G900F).
What I have done is make a backup of my original .qcn (which understand not share because there goes my IMEI) and I need advice from someone who knows that is the parameter that should change to open the AWS band 4.
Much appreciate your help.

I see that nobody has answered, if it was not for lack of cooperation, or because no one has had this problem.
Continue researching and achieve get qcn file G900M, which is super, but not left so installed as well, the QPST program generates an error and does not let install, so proceeded to compare them to see how different they are, and actually they are very different in their hexadecimal setting.
The issue now is, I need someone to tell me what are the parameter I have to modify my original qcn (my G900F) to enable AWS band 4.
Thank you for your help.

..

Hello again fffft.
I will try to explain everything in the best way. I can not send the file qcn G900M, because I have understood that within the IMEI can be identified, and the first thing I asked the person I give it to me was that change could not deliver it to anyone.
Now step by step to do was the following (taken from this forum http://forum.xda-developers.com/showthread.php?t=2291589 ):
Install phoneutil.apk in my phone.
Install QPST 2.7 build 323.
Choose the usb connection “RNDIS + DM + MODEM” from the menu that comes by typing *#0808#.
On the Ports tab of the program QSPT set the COM port corresponding to the cell (seeing that port recognizes the cell through Device Manager).
Choose “Start Clients” and choose “SOFTWARE DOWNLOAD”.
Hit the “Restore” tab, set port to COM number, choose the QCN file, and start.
Attached two images, one in which it is seen that the process is running smoothly, and a second in which shows the error.
With regard to your question about the RMNET protocol, for I must say I have no idea regards, because as I said I am still a newbie.
Finally and with respect to qcn file G900T me would be very very difficult to get the file G900M was relatively easy (not as easy lol) but because here in my country is the model that is sold, but the model does not get G900T no way.
I remain attentive to your suggestions, and thanks again for the help.

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I thought S5 supports AWS band as well as other bands? I bought S5 from Rogers and use it with Wind mobile (Canada).

..

Hi.
Well, with my answer are attached to the two qcn files, not if it's okay to post them because I do not know which is the information that I'm giving, but I'll trust you fffft.
Review the entries with IMEI and clear, making this process and I thought this would be a very good explanation of why not to overwrite the original file leaves the cell, because the second IMEI not for the phone, but even if this were true, no understand how in the above forum they spread a qcn file for S4 that everyone could use.
Anyway, I hope that with this we can advance the issue to see if I can get out of this mess.
Thanks again.

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Ok fffft, I found the parameter you say, but now my question is, as I edit the file qcn? I need some special program?

Loperaco said:
Ok fffft, I found the parameter you say, but now my question is, as I edit the file qcn? I need some special program?
Click to expand...
Click to collapse
Well, download the program XVI32 to edit the hexadecimal, apparently was successful but eventually the program generated the same mistake I had already seen, indicating "Could not reset the phone. COmmunication Errors Occurred".
Will you help me?

..

Hi there.
I have an interesting fact to share, because I could not properly complete the process to overwrite the qcn file then started to review the QPST program and its functions, among these I found the display content on qcn files through this for any entries who had been unable to write and determine that it was possible to write the file so qcn "hot" (ie directly on the phone) Oh and surprise! when I saw that the code / parameter that indicated fffft if I had changed even though the restore process had not been successful.
Anyway achieved modify the parameter in question and probe the cell after this, but still not achieve even connect AWS band 4, so despite the success the result was a failure.
Knowing this now accept suggestions from all of you experts.

..

Got a little further, but the bands did not get enabled...
fffft said:
Docx? Shouldn't those be .qcn files?
Anyway, you should try encouraging someone to post a NV dump from their 900T for comparison. You can check the existing AWS threads to confirm, but as I recall to enable AWS on earlier Galaxy models, required editing NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06
So ostensibly you will want to make the same change on your 900F. Comparing your NV to a 900T would lend confidence to that presumption.
.
Click to expand...
Click to collapse
fffft, Laperaco,
I am pursuing the same Band change as described here and have an update of the things that I was able to discover:
1) I was able to use QPST and pull NV backup from my phone - see my JJ_ATT_S5_Bands_Tester_No_IMEI (IMEI removed in Line 550)
**Note that I was not able to restore any QCN back to my phone in either USB mode (and I think this is what Loperaco was talking about), but...
2) I was able to program my phone directly using RF NV Item Manager, but did not get desired results (see below):
- a) I changed 1877 NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06 and nothing changed - i.e. radio still worked and I was still getting EDGE (no HSPA+)
- b) I tried changing the next line 1878 NV_RF_HW_CONFIG_I from f6 to 2c, because I saw that in another QCN file I found online. That actually "killed" my radio altogether, at least until I changed it back to f6
- c) Upon further inspection of the SM-N900T file I found online (too big to upload here), I saw that there are quite a few differences, which leads me to believe that additional configurations must be made to take advantage of the HSPA+ bands.
!! Please !! If someone with T-Mobile SGS5 looking at this, could you pull your QCN, mask IMEI if you'd like and post it here for comparison.
Otherwise, fffft, do you have any other thoughts regarding the changes needed...?
Last note that files are posted as .qcn.txt, becuase forum does not allow posting of qcn file extensions. Just remove .txt and you will have original qcn.
Thanks,
JJ

fffft said:
Your reluctance to document what you have done in detail is unfortunate because it prevents us from confirming that you did as you summarized or possibly discern any errors along the way. Nor did you tell us how you concluded that the phone did not connect to AWS, whether the changes were persistent after a reboot or what the service mode showed for activity after using the diagnostic menu to lock the handset to AWS, et cetera.
Of particular value would be a before and after NV dump from your phone, alongside a 900T NV dump. Which would illustrate both the required changes and any progress made with the attempted write.
To reply to your question, two obvious possibilities are apparent
1. That you changed the parameter as you summarized and that was insufficient to effect the desired change. Which would mean that the required parameter is different for the S5 than preceding Galaxy models for some reason e.g. that a different parameter needs editing or that radio changes are needed as well, even though that was not the case for the S3 & S4.
2. That you made some inadvertent error in your procedure that you didn't discern. No one can look for possible errors in the absence of you providing a detailed, step by step description of what you did though.
.
Click to expand...
Click to collapse
Ok ok, let me see how I can solve this.
First of all is not reluctance, I tried to be clear in how I do things, but I'll try again:
1. I bought a model of cell G900F that has disabled the AWS band 4.
2. I tried using the QPST program to replace the qcn file with one that corresponded to a G900M model, since in this model if the band 4 is enabled, but the process to make it in the program generated the error "Could not reset the phone. Communication Errors Occurred ".
3. I do not know how or if the QPST program writes an error log, so I do not know where to look it can be sent. I explain how to install and run the program each button is a bit wasteful, but I followed the steps in this forum http://forum.xda-developers.com/showthread.php?t=2291589
4. After this, and having received suggestions from fffft, I tried modifying the original qcn file from my phone, because I thought that perhaps the problem was because they were different models and finally the phone would not allow me to put a qcn file of another model. The modifications I did was change the parameter NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06. This is done by the program XVI32 modifying the hexadecimal.
5. I tried again using the option to restore the qcn file in QPST program, but got the same error "Could not reset the phone. Communication Errors Occurred".
6. I assumed I had to think of something else so it was when using the RF NV Manager (included in the installation program QSPT) for locate the actual file contents qcn on my phone, and I realized that despite the error obtained in restoring the file using the QPST program the parameter indicated in paragraph 4 of this list if it had changed.
7. I proceeded to check the signal and actually still had no access to the 4G network, the most that is connected to the HSDPA + network.
8. I read the comments from fffft and now I'm writing this.
I hope I was clear in my problem and have made a good step by step.
Now the issue is that:
A. I do not know how to access the diagnostic menu that enables or disables the AWS band, so I do not understand fffft what you're talking about.
B. I agree that modify only the parameter in question is not sufficient, otherwise the matter would be solved.
C. It is possible that I made ​​a mistake as you point out, I finally am new to this, but still I explained my process so I am attentive to suggestions.
Thanks for the help.

JJ_Boja said:
fffft, Laperaco,
I am pursuing the same Band change as described here and have an update of the things that I was able to discover:
1) I was able to use QPST and pull NV backup from my phone - see my JJ_ATT_S5_Bands_Tester_No_IMEI (IMEI removed in Line 550)
**Note that I was not able to restore any QCN back to my phone in either USB mode (and I think this is what Loperaco was talking about), but...
2) I was able to program my phone directly using RF NV Item Manager, but did not get desired results (see below):
- a) I changed 1877 NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06 and nothing changed - i.e. radio still worked and I was still getting EDGE (no HSPA+)
- b) I tried changing the next line 1878 NV_RF_HW_CONFIG_I from f6 to 2c, because I saw that in another QCN file I found online. That actually "killed" my radio altogether, at least until I changed it back to f6
- c) Upon further inspection of the SM-N900T file I found online (too big to upload here), I saw that there are quite a few differences, which leads me to believe that additional configurations must be made to take advantage of the HSPA+ bands.
!! Please !! If someone with T-Mobile SGS5 looking at this, could you pull your QCN, mask IMEI if you'd like and post it here for comparison.
Otherwise, fffft, do you have any other thoughts regarding the changes needed...?
Last note that files are posted as .qcn.txt, becuase forum does not allow posting of qcn file extensions. Just remove .txt and you will have original qcn.
Thanks,
JJ
Click to expand...
Click to collapse
Hi JJ.
We are indeed talking about the same issue, however I see a difference and that is that despite not having the band 4 AWS enabled on your phone, this only gives you the edge band, however my phone without enabling the band 4 gives me HSDPA+, so my question, just out of curiosity, is what is the frequency at which your operator transmits the EDGE network?

Loperaco said:
5. I tried again using the option to restore the qcn file in QPST program, but got the same error "Could not reset the phone. Communication Errors Occurred".
6. I assumed I had to think of something else so it was when using the RF NV Manager (included in the installation program QSPT) for locate the actual file contents qcn on my phone, and I realized that despite the error obtained in restoring the file using the QPST program the parameter indicated in paragraph 4 of this list if it had changed.
Click to expand...
Click to collapse
Laperaco,
1) I was also unable to load qcn file from backup even without modifications, so...
2) I made modifications directly to the phone using RF NV Item Manager*
*Note from my post that changing line 1877 made no difference in connectivity for me.
3) This specific connection is below (although it naturally fluctuates):
Network Type: EDGE:2
GSM RSSI: -89db (63%) 12 asu
GSM Signal Strength: 13db (42%)
Preferred Network Type is LTE/GSM autio (PRL)*
*Non-GSM selections (WCDMA, LTE-only, etc) simply do not connect, so no HSPA+ for me
JJ

JJ_Boja said:
Laperaco,
1) I was also unable to load qcn file from backup even without modifications, so...
2) I made modifications directly to the phone using RF NV Item Manager*
*Note from my post that changing line 1877 made no difference in connectivity for me.
3) This specific connection is below (although it naturally fluctuates):
Network Type: EDGE:2
GSM RSSI: -89db (63%) 12 asu
GSM Signal Strength: 13db (42%)
Preferred Network Type is LTE/GSM autio (PRL)*
*Non-GSM selections (WCDMA, LTE-only, etc) simply do not connect, so no HSPA+ for me
JJ
Click to expand...
Click to collapse
Ok JJ, we are going through the same steps, we must wait for more help, I'll keep researching but I see that not many people have our problem.
I have a question is that with that code or through option that could see data that you send me.
Any information or change that has put it in the post.

..

[WIP] Enable additional 3G / LTE Band on YU Yureka

WORK IN PROGRESS.. UNTIL NOW NOT GETTING 100%
This was for CM11s, Don't try on CM12s
As soon as we found right procedure we'll Update here
This tutorial is not for newbies.. If you are not little advance user don't do this
After reboot Values reset to Orignal setting (Reset)
need to prevent NV recovery
1. Download Files Here containing all the necessary files and extract it on desktop.
2. Enable Android Debugging on your phone and connect it to your computer,
3. Open up ADB and type the following:
Code:
adb shell
su
setprop sys.usb.config diag,adb
4. Launch Device Manager go to & expand Other Devices,
Right click Android (or something related) listed under that menu
Choose Update Driver Software,
Browse my computer for driver software,
Let me pick from a list of device drivers on my computer,
Just Click Next,
Have Disk,
Browse to where you extracted YU Diagnostics Driver folder
Inside you will find 32bit and 64bit versions, pick one as per your OS
Select htcdiag.inf (for 32bit) or HtcUsbMdmV64.inf (for 64bit) file that you will Open.
Accept all warning messages and let the installation of the driver complete.
5. Once everything is done installing, under Modems or Ports (Com & LPT) in Device Manager you will find HTC USB Modem.
Right click and select Properties; in this you will see Port: COM<number>. Remember that COM<number> or write it down.
6. Open QPST v2.7 Build 4.11 > run as administrator setup.exe (Don’t run QPST.2.7.411.msi)
7. Open QPST Configuration from Start Menu,
Go to the Ports tab,
Click on Add New Port (right bottom corner);
In the Port field type in the COM<number> you wrote down/remembered from step 5 and in Port Label type YU and finally click OK (left bottom corner).
If you've followed all the steps correctly until here, you should be able to see something like this in the Active Phones tab:
View attachment 3258366
Keep QPST Configuration window open
8. Open QXDM-3.12.714 > run as administrator setup.exe (Don’t run QXDMInstaller.msi)
9. Open QXDM Professional (run as administrator),
go to Options menu,
Select Communications
Set Target port to your phone COM<number> you wrote down/remembered from step 5 from dropdown list, Press OK.
View attachment 3258367
10. Back to QXDM main window, in the "View" drop-down menu, selects NV Browser
View attachment 3258368
now the fun part begins
View attachment 3259381
Put check mark on Dual SIM (as shown above SS) for apply all setting to both SIMs (Thanks to @tirta.agung)
11. Inside the NV Browser window,
Scroll down and click on line 01877 (rf_bc_config)
Click the Read button save original value in notepad in case something goes wrong.
Replace Input value with 3460734838925427584
Click on Write button.
12. Inside the NV Browser window,
Scroll down and click on line 00946 (band_pref_16_31);
Click the Read button, save original value in notepad in case something goes wrong.
Replace Input value with 0x0FF8 (please don't be an idiot and don't edit the empty one with "nam" in the name)
Click on Write button.
13. Inside the NV Browser window,
scroll down and click on line 02954 (band_pref_32_63);
click the Read button, save original value in notepad in case something goes wrong.
replace Input value with 805765120 (please don't be an idiot and don't edit the empty one with "nam" in the name)
click on Write button.
14. Inside the NV Browser window,
scroll down and click on line 00441 (band_pref);
click the Read button, save original value in notepad in case something goes wrong.
replace Input value with 0x380 or 0xFFFF (please don't be an idiot and don't edit the empty one with "nam" in the name)
click on Write button.
If you have problem with selection, you can edit it directly from your phone: *#*#4636#*#* /Phone information /Menu /Select radio band > Automatic
15. Inside the NV Browser window,
scroll down and click on line 06828 (lte_bc_config);
click the Read button, save original value in notepad in case something goes wrong.
replace Input value with 1904863 (please don't be an idiot and don't edit the empty one with "ext" in the name)
click on Write button.
16. Now Close QXDM; Wait 30 seconds,
disable Android Debugging on your phone,
unplug it and reboot your device;
Once it comes back on, it might take a minute or two for it to acquire signal so don't panic.
DO this on your own risk.. No body is responcible for any lost
Conclusion:
The only real way to know if the whole thing got applied is to do steps 1 through 10 again (obviously skipping installations)
and reading all values or if you are in an area where you previously had bad or no reception.
You can see unlocked GSM/UMPTS bands from the *#*#4636#*#* /Phone information /Menu /Select radio band
For more features of QXDM i.e. recover lost IMEI or ESN go HERE (Thanks to @tirta.agung)
Credits:
Thanks to @BlackSoulxxx for his original work with the Qualcomm baseband software, for the modified Drivers and for the LTE NV values
Thanks to @olokos for his original tutorial
Thanks to @devilsshadow for his original tutorial
Thanks to @Albirew for his original tutorial
Thanks to @tirta.agung for bringing the original thread to my attention & Guide me in many ways
Thanks to @fards for finding the diagnostics command that made all this possible
Thanks to @hem12 who raised my will for finding these tutorials.
Thanks to @d3athwarrior for post this tutorial.

Reserved

Don't forget to put check marks on dual sims, and apply all settings to sim0 and sim1 (see attachment). By the way before u messed things up, back up your modemst1, modemst2, fsc, and fsg.
By the way we can also use qxdm to recover lost imei, just go to 0550, and insert your imei for SIM 1 (sim0 in qxdm) and SIM 2 (sim1 in qxdm), for example:
Code:
If your IMEI was: 954091051099226, then the boxes would look like so:
8
9a
45
90
1
15
90
29
62
or also recover lost esn (item no 0 and 5597) or meid (1943 and 5598).

Great guide, guys !:good::good::good:
---------- Post added at 04:02 AM ---------- Previous post was at 03:59 AM ----------
Some error down there: "OPO" and huge load of credited people that seem dont fit in here. Clearly copied from OPO thread?

BlackSoulxxx said:
Great guide, guys !:good::good::good:
---------- Post added at 04:02 AM ---------- Previous post was at 03:59 AM ----------
Some error down there: "OPO" and huge load of credited people that seem dont fit in here. Clearly copied from OPO thread?
Click to expand...
Click to collapse
Yes you'r right.. I don't want to leave anyone in credit for them work :good:
OPO removed :Hawkeye:
but that works for me..
Need help for prevent NV recovery from you all

If it's the same as the 1+1, replacing /system/bin/rmt_storage with a version not locked would prevent nv recovery (do you know if NV values were sticking in an older version? If so, take it's rmt_storage and try to replace current one with older one, I think it's worth trying)

Albirew said:
If it's the same as the 1+1, replacing /system/bin/rmt_storage with a version not locked would prevent nv recovery (do you know if NV values were sticking in an older version? If so, take it's rmt_storage and try to replace current one with older one, I think it's worth trying)
Click to expand...
Click to collapse
Hmmm, as far as I know, all NV settings, including IMEI, or MEID, ESN, etc, resides in your modemst1 and modemst2 partition. If you don't believe me and eager to try, first make a backup of those two partitions, then format or wipe the two partition inside your phone (use fastboot to do this), I'll bet for your YU, now your IMEI and NV settings are all gone.
To be honest, I just found out from this thread that there is an rmt_storage in CM phones, wkwkwkwkw, . If the rmt_storage function is trough, then CM is locking the phone NV settings from the HLOS side not Non-HLOS side. I'll do some research on this rmt_storage.

Need Help from your side
tirta.agung said:
Don't forget to put check marks on dual sims, and apply all settings to sim0 and sim1 (see attachment). By the way before u messed things up, back up your modemst1, modemst2, fsc, and fsg.
.....
or also recover lost esn (item no 0 and 5597) or meid (1943 and 5598).
Click to expand...
Click to collapse
BlackSoulxxx said:
Great guide, guys !:good::good::good:
Some error down there: "OPO" and huge load of credited people that seem dont fit in here. Clearly copied from OPO thread?
Click to expand...
Click to collapse
Albirew said:
If it's the same as the
.....
current one with older one, I think it's worth trying)
Click to expand...
Click to collapse
Now current status is
when I connect mobile
it shows me like that
Even I change USB config to diag,adb
thru ADB or manually
this time its present in default.prop
I try both
trying to disable MTP in mobile USB connection is not working
Window for Settings > Storage > 3dot > USB computer connection is working
but when I disable MTP.. its not working3
So need help from your side..
how I enter / install diag mode

@tirta.agung
I read your complete Guide regarding unbrick YU
but as that post has multipal guides ... I little confused ..
Sorry I am Xtreme noob for all that
Can you guide me an easy way to connect with QPST for enable LTE band
Can I try
Guide #3. REVIVING YOUR IMEIs (That for 32bit or 64bit)??
for connect QXDM

ekhasti said:
@tirta.agung
I read your complete Guide regarding unbrick YU
but as that post has multipal guides ... I little confused ..
Sorry I am Xtreme noob for all that
Can you guide me an easy way to connect with QPST for enable LTE band
Can I try
Guide #3. REVIVING YOUR IMEIs (That for 32bit or 64bit)??
for connect QXDM
Click to expand...
Click to collapse
Yes use guide number three, and download the necessary file there. By the way, to use the guide you have to be in stock CM kitkat.

How to use these tools for Xperia C6602

Long story short, did it work in the end for more than 1 person?

thanks for the post. but i have a Lollipop rom. I will wait for you to update the thread ....

Can we try this in lollipop??? Is there any update on this???

ekhasti said:
WORK IN PROGRESS.. UNTIL NOW NOT GETTING 100%
CM12s
As soon as we found right procedure we'll Update here
Click to expand...
Click to collapse
Hi there, attached is boot.img and a hack rmt_storage for CM 12.1. Just flash the boot.img to your phone and connect it with QXDM. Your phone will be recognized as qualcomm diagnostic port 903A. Copy and paste (you can use TWRP's file manager to do this) the rmt_storage to "/system/bin" and change its permission (chmod) to 0755. This will make your changes stick upon reboot.
By the way, to use all these files, you need to be on stock CM 12.1. I haven't tried it on any other ROM.

Bro...im on cm12.1 ...rooted...I didn't understand the procedure... Pls can u explain step by step ..pls....wats that qxad ..? Is a software...? Wer I get that..,pls reply bro
Sent from my AO5510 using XDA Free mobile app

tirta.agung said:
Hi there, attached is boot.img and a hack rmt_storage for CM 12.1. Just flash the boot.img to your phone and connect it with QXDM. Your phone will be recognized as qualcomm diagnostic port 903A. Copy and paste (you can use TWRP's file manager to do this) the rmt_storage to "/system/bin" and change its permission (chmod) to 0755. This will make your changes stick upon reboot.
By the way, to use all these files, you need to be on stock CM 12.1. I haven't tried it on any other ROM.
Click to expand...
Click to collapse
Now i upgraded to cm13.....can these two files work for me....pls reply
Sent from my AO5510 using XDA Forums

@ekhasti
I have tried doing this on Yureka - CM11 XNPH05Q. Installed all the drivers & softwares successfully. When I startup the QPST config to add a new port,
1. I have to uncheck the "Show serial and USB/QC diag ports only" to make the HTCUSBModem port visible.
2. Although I am able to add the port successfully I am unable to see the phone number, it says "No Phone".
Since it is unable to get the phone details I am unable to proceed further. Nothing is visible/editable QXDM. either.
I have manually edited the build.prop file to make sure USB debugging is enabled but to no avail. Please check the attached files, what is it that I am missing?
P.S - I am able to get my IMEI number using *#06#

Any suggestion Guys???

bluebl0od said:
Any suggestion Guys???
Click to expand...
Click to collapse
Guys, I am eagerly waiting for your updates

Recovering Your LOST IMEI on YU Yureka ,Yunique & other qualcomm based devices

Hi friends We often suffer hard brick in our devices .
Even after flashing stock recovery . IMEI is not recovered
its easy to recover imei in MTK based devices but when it comes to qualcomm based devices
it is a big mess
This is my First Tutorial
how to recover lost IMEI in yureka yunqiue & other some qualcomm devices
im not responsible if anything wrong happen to your device
Tools you need
QXDM professional
usb hs-diagnostic 9006 driver
adb tool & driver
terminal app
now lets begin
1) Root your bricked phone & install terminal app (Note :- assuming you flashed stock rom or custom rom & you are facing imei lost issue )
now grant terminal app su permission by typing
SU in the app
in terminal type this code
Code:
setprop sys.usb.config diag,adb
now connect you phone to the usb
if you have installed the drivers correctly your phone will be detected by you system in diagnostics mode
now here is the trick
IMEI information is located inside the NV_ITEMS ==550
open qxdm professional
goto communication
browse to NV_ITEMS
now search for 550 in Item number
select the option dual sim (sim 0 stands for SIM1 and 1 stands for SIM2)
Code:
IMEI example "123456-78-9012340"
sort it out 1 ,23 ,45 ,67 ,89 01 ,23 ,40
{ 0x08, 0x1A, 0x32, 0x54, 0x76, 0x98, 0x10, 0x32, 0x04 }
As you can see i have sorted it out & swaped the values
0x08 is the length keep it as it
0x1A = first digit of IMEI with A
0x32 = swaped 23 to 32
.
.
after you are done putting value of your IMEI in sim 1 press the write button & wait few sec
now repeatg the step for sim2
Reboot Your Phone & voila
Hit Thanks if you think i have helped you

I just debricked my yureka plus and tried many tutorials to recover my imei numbers but didn't worked now i will try this and let you know what happens next!

It Works
Ty for this tutorial it worked for me
I recovered my IMEI using this TY again :victory:

Thanks a million for your help dude. Yours is the only method which worked on my Yu Yureka with cm12.1
I spent endless hours and wasted almost 3 gb of useless downloads. God bless you and may all your projects shine brightly in all your future ventures. Wish I could hit that thanks button a few hundred times........
Warmest regards

this tutorial it worked for me
I recovered my IMEI using this step but network not show and not show sim card

QXDM returns "read only" error. When i edit the contents with the correct ones and press write, the error is seen below as nv contents read only mode

sohail0098 said:
QXDM returns "read only" error. When i edit the contents with the correct ones and press write, the error is seen below as nv contents read only mode
Click to expand...
Click to collapse
same thing happened to me also.
i am using oneplus 2 and lost imei of one sim
what device you are using?
did you got any fix for that?
---------- Post added at 03:57 AM ---------- Previous post was at 03:54 AM ----------
botnet.py said:
Hi friends We often suffer hard brick in our devices .
Even after flashing stock recovery .
Click to expand...
Click to collapse
i followed the exact steps but encountered one problem.
using oneplus 2 and trying to recover one lost imei
when i select slot 1 for second sim it says it is not active and even when i try to edit and write it says its write protected.
any help in that case?

ashu01 said:
same thing happened to me also.
i am using oneplus 2 and lost imei of one sim
what device you are using?
did you got any fix for that?
---------- Post added at 03:57 AM ---------- Previous post was at 03:54 AM ----------
i followed the exact steps but encountered one problem.
using oneplus 2 and trying to recover one lost imei
when i select slot 1 for second sim it says it is not active and even when i try to edit and write it says its write protected.
any help in that case?
Click to expand...
Click to collapse
share screenshot .....& did u selected dual sim ?& double check if ur phone is rooted properly

ashu01 said:
same thing happened to me also.
i am using oneplus 2 and lost imei of one sim
what device you are using?
did you got any fix for that?
---------- Post added at 03:57 AM ---------- Previous post was at 03:54 AM ----------
i followed the exact steps but encountered one problem.
using oneplus 2 and trying to recover one lost imei
when i select slot 1 for second sim it says it is not active and even when i try to edit and write it says its write protected.
any help in that case?
Click to expand...
Click to collapse
Just reinstall your rom by wiping internal storage also. Then let the phone boot. Don't install gapps for quicker bootup. Then after restoring imei flash the rom of your choice. Try cm nightly first for recovering imei.

sohail0098 said:
Just reinstall your rom by wiping internal storage also. Then let the phone boot. Don't install gapps for quicker bootup. Then after restoring imei flash the rom of your choice. Try cm nightly first for recovering imei.
Click to expand...
Click to collapse
you got your IMEI back??
i have tried many things..
could you please list the steps you have done.
and how you got rid of that write protected issue?

ashu01 said:
you got your IMEI back??
i have tried many things..
could you please list the steps you have done.
and how you got rid of that write protected issue?
Click to expand...
Click to collapse
I was on cm13 unofficial build. I tried qxdm professional but there was this write protected error. I connected my device in fastboot mode and erased system. Then hotbooted TWRP (latest) and flashed the same rom again after wiping data and internal storage using rm rf. Then i let the rom boot up. (Without Gapps). Then i again tried the same steps as mentioned above. And after i got imei back, i rolled to my favourite rom. Hope you get back your imei soon.

lost yureka imei number and baseband unknown
botnet.py said:
Hi friends We often suffer hard brick in our devices .
Even after flashing stock recovery . IMEI is not recovered
its easy to recover imei in MTK based devices but when it comes to qualcomm based devices
it is a big mess
This is my First Tutorial
how to recover lost IMEI in yureka yunqiue & other some qualcomm devices
im not responsible if anything wrong happen to your device
Tools you need
QXDM professional
usb hs-diagnostic 9006 driver
adb tool & driver
terminal app
now lets begin
1) Root your bricked phone & install terminal app (Note :- assuming you flashed stock rom or custom rom & you are facing imei lost issue )
now grant terminal app su permission by typing
SU in the app
in terminal type this code
Code:
setprop sys.usb.config diag,adb
now connect you phone to the usb
if you have installed the drivers correctly your phone will be detected by you system in diagnostics mode
now here is the trick
IMEI information is located inside the NV_ITEMS ==550
open qxdm professional
goto communication
browse to NV_ITEMS
now search for 550 in Item number
select the option dual sim (sim 0 stands for SIM1 and 1 stands for SIM2)
Code:
IMEI example "123456-78-9012340"
sort it out 1 ,23 ,45 ,67 ,89 01 ,23 ,40
{ 0x08, 0x1A, 0x32, 0x54, 0x76, 0x98, 0x10, 0x32, 0x04 }
As you can see i have sorted it out & swaped the values
0x08 is the length keep it as it
0x1A = first digit of IMEI with A
0x32 = swaped 23 to 32
.
.
after you are done putting value of your IMEI in sim 1 press the write button & wait few sec
now repeatg the step for sim2
Reboot Your Phone & voila
Hit Thanks if you think i have helped you
Click to expand...
Click to collapse
i have lost yureka imei number how to recover imei number? can i recover it by flashing stock rom? currently i am using cm12.1 in my phone. sim is not detected network is not recognize what should i do. should i follow this guide or flash stock rom? plz help me

Please provide links for qxdm professional

Recoverd imei bt no signals on lte H.E.L.P............

sohail0098 said:
I was on cm13 unofficial build. I tried qxdm professional but there was this write protected error. I connected my device in fastboot mode and erased system. Then hotbooted TWRP (latest) and flashed the same rom again after wiping data and internal storage using rm rf. Then i let the rom boot up. (Without Gapps). Then i again tried the same steps as mentioned above. And after i got imei back, i rolled to my favourite rom. Hope you get back your imei soon.
Click to expand...
Click to collapse
Hello Sohail,
Greetings from Karnataka,
Bro, Im in dire need of IMEI fix, WRT Yu Yureka.
Is it possible to help me?
Ive also created a thread, with relevant info :
https://forum.xda-developers.com/yureka/orig-development/yu-imei-issue-t3605198
Thanks

ashu01 said:
you got your IMEI back??
i have tried many things..
could you please list the steps you have done.
and how you got rid of that write protected issue?
Click to expand...
Click to collapse
Have you installed stock ROM v1?

If the above post doesn't work then you can follow this ..My Name Suman Das..I myself have done this.
Believe Me you will be successfull..
Step 1:Search Google for ".qcn" file for yunique / yureka whatever you have...
Step 2: Download qpst configuration tool. and istall it on your computer..
Step 3: Root Your Phone..Kingroot or SuperSu .zip can be used..
Step 4: Download And Install Terminal Emulator apk from any where..
Step 5:Connect your phone to PC With USB Debugging mode enabled..
Step 6: Open terminal Emulator...and Type this commands to Enable Diag mode of oyur mobile into PC..
adb shell(then enter)
su(then enter)
setprop sys.usb.config diag,adb(then enter)
After this your phone will be connected to PC In Diag Mode..then you are ready to Restore the Downloaded .qcn file ..
Step 7: Go To PC Open QPST Configuration & Check Ports for Qualcomm Port DIAG In Device Manager..
Step 8: Now you will see your Phone in QPST Configuration .Now click on Start Clients In the Menu Bar Of QPST and go to Software Download..
Step 8: Click on Port Browse option and select your phone.Then Go to Restore.And browse for your ".qcn" file and click on restore...
and then You have successfully Restored your phone back .then Simply restart your phone and it's ready..
---------- Post added at 12:41 PM ---------- Previous post was at 12:19 PM ----------
sourabhlangoo said:
Recoverd imei bt no signals on lte H.E.L.P............
Click to expand...
Click to collapse
If the above post doesn't work then you can follow this ..My Name Suman Das..I myself have done this.
Believe Me you will be successfull..
Step 1:Search Google for ".qcn" file for yunique / yureka whatever you have...
Step 2: Download qpst configuration tool. and istall it on your computer..
Step 3: Root Your Phone..Kingroot or SuperSu .zip can be used..
Step 4: Download And Install Terminal Emulator apk from any where..
Step 5:Connect your phone to PC With USB Debugging mode enabled..
Step 6: Open terminal Emulator...and Type this commands to Enable Diag mode of oyur mobile into PC..
adb shell(then enter)
su(then enter)
setprop sys.usb.config diag,adb(then enter)
After this your phone will be connected to PC In Diag Mode..then you are ready to Restore the Downloaded .qcn file ..
Step 7: Go To PC Open QPST Configuration & Check Ports for Qualcomm Port DIAG In Device Manager..
Step 8: Now you will see your Phone in QPST Configuration .Now click on Start Clients In the Menu Bar Of QPST and go to Software Download..
Step 8: Click on Port Browse option and select your phone.Then Go to Restore.And browse for your ".qcn" file and click on restore...
and then You have successfully Restored your phone back .then Simply restart your phone and it's ready..
Download Link For Softwares---https://drive.google.com/folderview?id=0B-0bWbXeDJt4dGMyVkF2TnBSVWs

Got the solution
I was struggling for many days and it was so simple though I got my IMEIs back by just flashing Volte modem file. A huge thanks to that person who somewhere in some thread mentioned this step.You are great bro.

codeddanny said:
I was struggling for many days and it was so simple though I got my IMEIs back by just flashing Volte modem file. A huge thanks to that person who somewhere in some thread mentioned this step.You are great bro.
Click to expand...
Click to collapse
You mean if i reflash the volte modem, i can get back my imei?
Sent from my YU5510 using Tapatalk

Service disabled\Current version not available for user\D855RE\ [solved]!!!

Do it at own risk.
Hello evreybody!!!
After 1 months of hard work,I found out how to solve “Service disabled” (‘Current version not available for user”phone model855RE) no network error.
I know,that a lot of people have this problem with his device,so I decided to share it with you.
I have bought D855 from alliexpress.It worked well with KitKat.When updated it with D85530 MM firmware,after booting the 2G\3G\LTE network is gone and in the screen appears a message “Service disabled”I have tried flash many D855 stock \custom firmwares,modems,restored several d855.qcn file but nothing.I was so disappointed,that the only solution is the motherboard replacement.But I talked with guy,and he said me,that my device can be a”Frankenstein”phone.(D855 body with D850 motherboard)It easily can be happened,if you buy a Refrubised phone from China)So that was my problem.When I flashed a D850 stock SW and restored a qcn from a working D850,my 2G\3G network worked like a charme.
My device has been through a lot of truble.(Soft and Hard brick,softwer version has become D855RE,Current version not available for user e.g)
So let’s start!
1.At first,make sure that in your D855 body,a D850 motherboard.
2.Download and install Lg Flashtools V1.8 and stock firmware for D850(LGD850AT-01-V10d-310-410-JUN-19-2014+0.tot).
from here:
http://forum.xda-developers.com/showthread.php?t=2785089
3.Download LGUP 8974.dll(not d850.dll,with this dll,the flashtool will not allow you to flash the d850tot,because your currently device model is D855RE\V).
from here:
http://forum.xda-developers.com/attachment.php?attachmentid=2473543&d=1387955530
4.Flash the LGD850AT SW and LGUP 8974.dll.After this step you will not have a network,but you will have a d850 model.
[If the flash procces isn't starting because of this error"ERROR CROSS DL (D855) to (D850) Sw Version",you must edit one Hex string on your downloaded LGD850 tot,
with the help of any hex editor. Then drag and drop your .D850TOT file into hex editor to modify it, Then click on search => Find. Type d850 or 850 and You will see this Hex string (not the same exact one but something similar),and modify xVLG-D850 to xVLG-D855\D855RE or D855V(Depending on your phone model)( https://yadi.sk/i/5ptKOYmQsaVZu ).Finally just click to the save butten,and flash the modified tot with lgup 8974 dll.]
5.After the success flashing,you must root your device and install the latest twrp on it.
6.Boot into recovery and restore efs partition backup from here :
https://yadi.sk/d/ZiKLY33jsZMSP
[After it you will have a 2G network but no 3G\4G network because of the imei of the device is 0.So you must restore it with QPST.
1. Make sure you LG G3 is running the stock LG firmware.(in our case LGD850AT-01-V10d). If your phone does not have official firmware installed on it, restore it to stock first. Install the latest LG USB drivers on your computer.
2. Now download the IMEI converter tool and unzip it.
3. Download QPST (Qualcomm Product Support Tools) and unzip it.
4. Open the QPST_2.7_378 and run the setup file to install it on your computer.
5. Enable USB debugging on your device. You can find this option under Settings> Developer options. Connect your device to the computer.
6. Run QPST configuration and click on Ports tab. Click on Add new port option.
7. Your current port should show as COM4/5.
8. Select the port and click OK. The port should come up on active phones.
9. Select the phone and click the Software Download option from Start clients menu.
10. Now click on Backup tab. You should see your phone’s port.
11. Click on Start to initiate backup.
12. Now navigate to C:/ Program Files/ qualcomm/ qpst/bin folder.
13. Run RF_NV_Manager.
14. Click File> Read from phone. Your phone’s IMEI number should appear on number 550; NV_IMEI_I
15. If you do not see item 550, do not panic.
16. Click on File> Read supported RF NV items.
17. Click on item 550. You would see 9 blank fields.
18. Now run IMEI Converter.exe.
19. Now type your phone’s IMEI in Enter IMEI field. You can find your IMEI on your phone’s bill or the box your device came in.
20. Then click on <Convert IMEI> button.
21. You should see 18 digits in groups of 9.
22. In RF_NV_Manager program, click on Hex by Write NV button.
23. In the 9 boxes, type in the numbers from IMEI converter starting from left. Type in first group of two numbers in the first field, then go to the next field and type in second 2 digits.
24. When you are done with doing this, click on Write NV option.
25. Then click File> Read from phone.
26. Item number 550 should appear now.
27. Disconnect the USB cable and reboot it.
28. Open phone’s dialer and dial *#06#. You should see your phone’s IMEI now.
That’s all!You are done!:good::good::good:
If I helped you,plz push to the thanks button .
Sorry for my bad English.

Robert LG said:
Do it at own risk.
Hello evreybody!!!
After 1 months of hard work,I found out how to solve “Service disabled” (‘Current version not available for user”phone model855RE) no network error.
I know,that a lot of people have this problem with his device,so I decided to share it with you.
I have bought D855 from alliexpress.It worked well with KitKat.When updated it with D85530 MM firmware,after booting the 2G\3G\LTE network is gone and in the screen appears a message “Service disabled”I have tried flash many D855 stock \custom firmwares,modems,restored several d855.qcn file but nothing.I was so disappointed,that the only solution is the motherboard replacement.But I talked with guy,and he said me,that my device can be a”Frankenstein”phone.(D855 body with D850 motherboard)It easily can be happened,if you buy a Refrubised phone from China)So that was my problem.When I flashed a D850 stock SW and restored a qcn from a working D850,my 2G\3G network worked like a charme.
My device has been through a lot of truble.(Soft and Hard brick,softwer version has become D855RE,Current version not available for user e.g)
So let’s start!
1.At first,make sure that in your D855 body,a D850 motherboard.
2.Download and install Lg Flashtools V1.8 and stock firmware for D850(LGD850AT-01-V10d-310-410-JUN-19-2014+0.tot).
from here:
http://forum.xda-developers.com/showthread.php?t=2785089
3.Download LGUP 8974.dll(not d850.dll,with this dll,the flashtool will not allow you to flash the d850tot,because your currently device model is D855RE\V).
from here:
http://forum.xda-developers.com/attachment.php?attachmentid=2473543&d=1387955530
4.Flash the LGD850AT SW and LGUP 8974.dll.After this step you will not have a network,but you will have a d850 model.
[If the flash procces isn't starting because of this error"ERROR CROSS DL (D855) to (D850) Sw Version",you must edit one Hex string on your downloaded LGD850 tot,
with the help of any hex editor. Then drag and drop your .D850TOT file into hex editor to modify it, Then click on search => Find. Type d850 or 850 and You will see this Hex string (not the same exact one but something similar),and modify xVLG-D850 to xVLG-D855\D855RE or D855V(Depending on your phone model)( https://yadi.sk/i/5ptKOYmQsaVZu ).Finally just click to the save butten,and flash the modified tot with lgup 8974 dll.]
5.After the success flashing,you must root your device and install the latest twrp on it.
6.Boot into recovery and restore efs partition backup from here :
https://yadi.sk/d/ZiKLY33jsZMSP
[After it you will have a 2G network but no 3G\4G network because of the imei of the device is 0.So you must restore it with QPST.
1. Make sure you LG G3 is running the stock LG firmware.(in our case LGD850AT-01-V10d). If your phone does not have official firmware installed on it, restore it to stock first. Install the latest LG USB drivers on your computer.
2. Now download the IMEI converter tool and unzip it.
3. Download QPST (Qualcomm Product Support Tools) and unzip it.
4. Open the QPST_2.7_378 and run the setup file to install it on your computer.
5. Enable USB debugging on your device. You can find this option under Settings> Developer options. Connect your device to the computer.
6. Run QPST configuration and click on Ports tab. Click on Add new port option.
7. Your current port should show as COM4/5.
8. Select the port and click OK. The port should come up on active phones.
9. Select the phone and click the Software Download option from Start clients menu.
10. Now click on Backup tab. You should see your phone’s port.
11. Click on Start to initiate backup.
12. Now navigate to C:/ Program Files/ qualcomm/ qpst/bin folder.
13. Run RF_NV_Manager.
14. Click File> Read from phone. Your phone’s IMEI number should appear on number 550; NV_IMEI_I
15. If you do not see item 550, do not panic.
16. Click on File> Read supported RF NV items.
17. Click on item 550. You would see 9 blank fields.
18. Now run IMEI Converter.exe.
19. Now type your phone’s IMEI in Enter IMEI field. You can find your IMEI on your phone’s bill or the box your device came in.
20. Then click on <Convert IMEI> button.
21. You should see 18 digits in groups of 9.
22. In RF_NV_Manager program, click on Hex by Write NV button.
23. In the 9 boxes, type in the numbers from IMEI converter starting from left. Type in first group of two numbers in the first field, then go to the next field and type in second 2 digits.
24. When you are done with doing this, click on Write NV option.
25. Then click File> Read from phone.
26. Item number 550 should appear now.
27. Disconnect the USB cable and reboot it.
28. Open phone’s dialer and dial *#06#. You should see your phone’s IMEI now.
That’s all!You are done!:good::good::good:
If I helped you,plz push to the thanks button .
Sorry for my bad English.
Click to expand...
Click to collapse
Thanks man!!!My2G/3G network working now!
---------- Post added at 09:06 AM ---------- Previous post was at 08:53 AM ----------
Lupi0125 said:
Thanks man!!!My2G/3G network working now!
Click to expand...
Click to collapse
You're welcome bro!

Robert LG said:
Do it at own risk.
Hello evreybody!!!
After 1 months of hard work,I found out how to solve “Service disabled” (‘Current version not available for user”phone model855RE) no network error.
I know,that a lot of people have this problem with his device,so I decided to share it with you.
I have bought D855 from alliexpress.It worked well with KitKat.When updated it with D85530 MM firmware,after booting the 2G\3G\LTE network is gone and in the screen appears a message “Service disabled”I have tried flash many D855 stock \custom firmwares,modems,restored several d855.qcn file but nothing.I was so disappointed,that the only solution is the motherboard replacement.But I talked with guy,and he said me,that my device can be a”Frankenstein”phone.(D855 body with D850 motherboard)It easily can be happened,if you buy a Refrubised phone from China)So that was my problem.When I flashed a D850 stock SW and restored a qcn from a working D850,my 2G\3G network worked like a charme.
My device has been through a lot of truble.(Soft and Hard brick,softwer version has become D855RE,Current version not available for user e.g)
So let’s start!
1.At first,make sure that in your D855 body,a D850 motherboard.
2.Download and install Lg Flashtools V1.8 and stock firmware for D850(LGD850AT-01-V10d-310-410-JUN-19-2014+0.tot).
from here:
http://forum.xda-developers.com/showthread.php?t=2785089
3.Download LGUP 8974.dll(not d850.dll,with this dll,the flashtool will not allow you to flash the d850tot,because your currently device model is D855RE\V).
from here:
http://forum.xda-developers.com/attachment.php?attachmentid=2473543&d=1387955530
4.Flash the LGD850AT SW and LGUP 8974.dll.After this step you will not have a network,but you will have a d850 model.
[If the flash procces isn't starting because of this error"ERROR CROSS DL (D855) to (D850) Sw Version",you must edit one Hex string on your downloaded LGD850 tot,
with the help of any hex editor. Then drag and drop your .D850TOT file into hex editor to modify it, Then click on search => Find. Type d850 or 850 and You will see this Hex string (not the same exact one but something similar),and modify xVLG-D850 to xVLG-D855\D855RE or D855V(Depending on your phone model)( https://yadi.sk/i/5ptKOYmQsaVZu ).Finally just click to the save butten,and flash the modified tot with lgup 8974 dll.]
5.After the success flashing,you must root your device and install the latest twrp on it.
6.Boot into recovery and restore efs partition backup from here :
https://yadi.sk/d/ZiKLY33jsZMSP
[After it you will have a 2G network but no 3G\4G network because of the imei of the device is 0.So you must restore it with QPST.
1. Make sure you LG G3 is running the stock LG firmware.(in our case LGD850AT-01-V10d). If your phone does not have official firmware installed on it, restore it to stock first. Install the latest LG USB drivers on your computer.
2. Now download the IMEI converter tool and unzip it.
3. Download QPST (Qualcomm Product Support Tools) and unzip it.
4. Open the QPST_2.7_378 and run the setup file to install it on your computer.
5. Enable USB debugging on your device. You can find this option under Settings> Developer options. Connect your device to the computer.
6. Run QPST configuration and click on Ports tab. Click on Add new port option.
7. Your current port should show as COM4/5.
8. Select the port and click OK. The port should come up on active phones.
9. Select the phone and click the Software Download option from Start clients menu.
10. Now click on Backup tab. You should see your phone’s port.
11. Click on Start to initiate backup.
12. Now navigate to C:/ Program Files/ qualcomm/ qpst/bin folder.
13. Run RF_NV_Manager.
14. Click File> Read from phone. Your phone’s IMEI number should appear on number 550; NV_IMEI_I
15. If you do not see item 550, do not panic.
16. Click on File> Read supported RF NV items.
17. Click on item 550. You would see 9 blank fields.
18. Now run IMEI Converter.exe.
19. Now type your phone’s IMEI in Enter IMEI field. You can find your IMEI on your phone’s bill or the box your device came in.
20. Then click on <Convert IMEI> button.
21. You should see 18 digits in groups of 9.
22. In RF_NV_Manager program, click on Hex by Write NV button.
23. In the 9 boxes, type in the numbers from IMEI converter starting from left. Type in first group of two numbers in the first field, then go to the next field and type in second 2 digits.
24. When you are done with doing this, click on Write NV option.
25. Then click File> Read from phone.
26. Item number 550 should appear now.
27. Disconnect the USB cable and reboot it.
28. Open phone’s dialer and dial *#06#. You should see your phone’s IMEI now.
That’s all!You are done!:good::good::good:
If I helped you,plz push to the thanks button .
Sorry for my bad English.
Click to expand...
Click to collapse
Thanx man but this is so much complicated and am a noob could you pls help me with teamviwer my dad will kill me pls help ....!!!???

a bricked lg g2 said:
Thanx man but this is so much complicated and am a noob could you pls help me with teamviwer my dad will kill me pls help ....!!!???
Click to expand...
Click to collapse
Sorry bro but I'm extremaly busy.If I'll have a time I send you a p.m..

It's realy work!!!!!!!
It really works. I have spent a half of year to find this solution.:laugh::laugh::laugh::laugh::laugh::laugh::laugh::laugh: To the author very respect!!!!!!!!!!!!!!!!!!!!!!

Robert LG said:
Sorry bro but I'm extremaly busy.If I'll have a time I send you a p.m..
Click to expand...
Click to collapse
Thanx man its done and worked fine thanx a lot

Andrew082 said:
It really works. I have spent a half of year to find this solution.:laugh::laugh::laugh::laugh::laugh::laugh::laugh::laugh: To the author very respect!!!!!!!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
:good::good::good:

a bricked lg g2 said:
Thanx man its done and worked fine thanx a lot
Click to expand...
Click to collapse
:good::good::good:

Hi, my device is and d850, It works only in 2g. I´ve flashed a QCN who sahred in xda and with NV Manager could write my IMEI, after reboot phone, it connected 4g but only for a few moments... now only works in 2g again and it could not reconnect 4g/3g again.
Then I have flashed another QCN from google and now this works at least in H, but it doesn´t work 4g.
Do you know any solution ? Thank you very much

I will try this

gallego18 said:
Hi, my device is and d850, It works only in 2g. I´ve flashed a QCN who sahred in xda and with NV Manager could write my IMEI, after reboot phone, it connected 4g but only for a few moments... now only works in 2g again and it could not reconnect 4g/3g again.
Then I have flashed another QCN from google and now this works at least in H, but it doesn´t work 4g.
Do you know any solution ? Thank you very much
Click to expand...
Click to collapse
Hi.Sorry bro,i cant help you.But for me 3g works .

rabbit19 said:
I will try this
Click to expand...
Click to collapse
Hi.Your trien was succesfull?

Hi. what am I missing? LG Flash Tool won't let me flash the dll esited tot. I have followed your instruction to edit one string xvlg-d950 to d850V, but the file is D855AT instead ofD855v.

Hi Robert. Thanks a lot for sharing this fix. I've been searching for solution for my LG G3 for almost a year now. I got a signal now. Wow! I can use now my phone for calls and data. I bought this online as well, with the service disabled condition.
The error i got yesterday on flashing the D850 rom is that I have written D855v on the hex editor, but it should only be D855.
Once again, thanks a lot. Cheers!!!

I have d855 board, is it okay to use this solution? I've flashed all kind of roms still service disabled. Will it brick my device?

rabbit19 said:
Hi Robert. Thanks a lot for sharing this fix. I've been searching for solution for my LG G3 for almost a year now. I got a signal now. Wow! I can use now my phone for calls and data. I bought this online as well, with the service disabled condition.
The error i got yesterday on flashing the D850 rom is that I have written D855v on the hex editor, but it should only be D855.
Once again, thanks a lot. Cheers!!!
Click to expand...
Click to collapse
I'm glad to hear it.You're welcome!

jancanes said:
I have d855 board, is it okay to use this solution? I've flashed all kind of roms still service disabled. Will it brick my device?
Click to expand...
Click to collapse
I think,that you can't use this method.If you flash D850 tot file for your D855 board ,your device will boot only in fastboot mode or it will be bricked .Try to restore a "qcn"from a working D855.

Robert LG said:
I'm glad to hear it.You're welcome!
Click to expand...
Click to collapse
LTE is working! WOW! :highfive:

rabbit19 said:
LTE is working! WOW! :highfive:
Click to expand...
Click to collapse
Good to know.I could'nt test it because in my country there is no LTE.Thank's for the replay!:good::good::good:

Robert LG said:
I think,that you can't use this method.If you flash D850 tot file for your D855 board ,your device will boot only in fastboot mode or it will be bricked .Try to restore a "qcn"from a working D855.
Click to expand...
Click to collapse
I've already tried to restore qcn, still failed...service disabled...any ideas

[GUIDE][SN_Writer]Restore IMEI, WiFi/Bluetooth Mac, Serial No.[Lenovo_K8_Note]

If you flashed the Stock ROM using “Download All + Format” option in SP Flash Tool or you wiped NVRAM partition accidently then you probably lost IMEIs, WiFi/Bluetooth Mac Address and Serial No.
Disclaimer:
Code:
/*
*Your Warranty is now void.
*Neither me nor the developers of tools are responsible.
*You are doing this at your own risk and will
*solely be responsible if something happens to the device.
*Make sure you only use the original “IMEI_1, IMEI_2,
*WiFi/Bluetooth Address, Serial Number” that came with your phone.
*/
Note:
Although, I have tried to keep this guide as simple as possible, I am assuming that you have already flashed Stock ROM using this thread/guide:
https://forum.xda-developers.com/k8-note/how-to/lenovo-k8-note-xt1902-3-fix-dead-hard-t3791839
Which also means the required drivers i.e. “MTK (USB DA COM, Preloader USB VCOM, USB Port, USB VCOM) Driver” and “Lenovo USB Driver” in the thread mentioned above are also installed.
Requirements:
Lenovo K8 Note with Stock ROM.
Original IMEI_1, IMEI_2, WiFi/Bluetooth Mac Address, Serial Number. (Find on Phone’s box)
SN Write Tool (Download)
Database Files
ADB Tools (Inside SN_Write_Tool\Android)
Basic ADB know-how.
And a PC. (obviously)
USB Debugging:
Before we proceed, make sure “USB Debugging” is enabled on phone:
Navigate to, Settings > System > About Phone > Build Number (Tap 7 times) to enable “Developer Options”.
Now, Enable “USB Debugging” in Settings > System > Developer Options.
Flashing Procedure:
Extract SN Write. (For Example, Location: “E:\ SN_Write_Tool_v1.1916.00”)
Open SN Write Tool (SN_Writer.exe).
Make sure all the Preliminary steps mentioned in below sections have been performed – Obtaining DB files, Configuring SN Write Tool, Understanding Barcode.
Switch off the phone, while keeping the cable unplugged
Click “Start”.
Enter Original IMEI_1, IMEI_2, WiFi/Bluetooth Mac Address, Barcode and press “Ok”
Connect your phone.
Now your phone will automatically boot in Meta Mode.
Wait for the Process to finish.
Now you will see “Pass” message if everything completes successfully.
Now it will again ask to enter the details. Click “Cancel”
The phone will now switch off. Then boot it manually.
That’s it. Your phone is now back to normal. Now, you can see Serial No. in adb too.
Obtaining Database(DB) files:
In order to restore everything we need 2 Database files, which can be obtained by following the procedure below:
Extract SN_Write Tool. (For Example, Location: “E:\ SN_Write_Tool_v1.1916.00”)
Navigate to “Android” folder inside SN_Write_Tool folder.
Keep Shift Key Pressed and Right Click inside the folder. Select “Open Command / PowerShell window here”.
Type
Code:
adb devices
You will receive a prompt on your phone. Select “Ok”. The device will appear in the list. (Something like “0123456 device”)
Now, type these commands:
Code:
adb pull /vendor/etc/mddb Database
adb pull /system/etc/apdb Database
Now, navigate to “E:\ SN_Write_Tool_v1.1916.00\Android\Database”. There will be around 23 Files. We only Need 2 files from that.
APDB_MT6797_S01_alps-trunk-o0.tk_W19.10 (Approx. size 145kb)
MDDB_InfoCustomAppSrcP_MT6797_S00_MANNING_O_Vxx_x_ulwctg_n.EDB (Approx. size 59mb)
Note: Name and size may slightly vary depending upon your firmware.
Copy the above two files to some other destination (optional).
Note: If you are using PowerShell then, instead of “adb” type “./adb”
Configuring SN Writer Tool:
Open “SN_Writer.exe” inside “E:\ SN_Write_Tool_v1.1916.00”.
Now Click “System Config”.
Check “Dual IMEI” (Do not check “Dual IMEI Same” under that).
In Write options select Barcode, IMEI, BT Address, WiFi Address. (If you don’t have WiFi/BT Address then don’t check/select them).
Check “Load AP DP from DUT” and “Load Modem DB from DUT”.
Click “MD1_DB” and select the file that you pulled using ADB i.e.
“MDDB_InfoCustomAppSrcP_MT6797_S00_MANNING_O_Vxx_x_ulwctg_n.EDB”
Click “AP_DB” and select the file that you pulled using ADB i.e.
“APDB_MT6797_S01_alps-trunk-o0.tk_W19.10”
Now click “Save”.
{
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​
Understanding Barcode:
It took me lots n lots of trial & error and googling before finding the correct (probably) Barcode format that we need to use in SN Writer. Trust me, it was not an easy task. Below are three iterations of barcode, use any:
First Iteration (recommended):
The Barcode field consists if two parts, call them Spaces and Serial No.​
​
Total Length(33 Characters) = (25 Spaces) + SN(8)​
​
For Example,​
If my SN written on the box is “XYZ1223W”, my barcode will be (without quotes):​
Code:
“ XYZ1223W”
​
​
or
Second Iteration (recommended 2):
In this iteration, we'll assume that the Barcode field in SN Write Tool is a combination of three parts. Lets call it First (PN), Second and Third Part (SN). You can find PN & SN on the box of phone. I am not sure about the second part with 15 characters. You can leave the second part, just give 15 Spaces.​
​
Total Length(33 Characters) = PN(10) + (15 Spaces) + SN(8)​
​
For Example,​
If my PN written on the box is “AB1D1112IN” and SN is “XYZ1223W”, my barcode will be (without quotes):​
Code:
“AB1D1112IN XYZ1223W”
​
or
Third Iteration:
There can also be a third iteration for barcode, though I am not sure about this and is completely based on my assumption. In the second part, as mentioned above we are leaving 15 spaces, but in this, we will use the product barcode of 13 characters (Refer Barcode No. 2 in the attached image below) instead of 15 spaces​
​
​
​
For Example,​
If my barcode (no. 2 in image above) of 13 charcters is “0123456789012”, then in SN Writer we will write (without quotes):​
​
Total Length(33 Characters) = PN(10) + (Space) + (13) + (Space)+ SN(8)​
​
Code:
“AB1D1112IN 0123456789012 XYZ1223W”
​
Note the space after each part, which makes up for two characters that we require.​
As you can see in the Screenshot attached in this post, “Lenovo Help” app recognizes the device as it is meant to be recognized.
​
WiFi/Bluetooth Mac Address:
Though, it is not a big deal if you lost WiFi/Bluetooth Mac Addresses. They will still work fine even without it.
If you didn’t backup nvram before or didn’t note down WiFi/Bluetooth Mac address then you can’t get it back. But, if you did TWRP backup of nvram then you can restore it and get back both the original Mac addresses.
FAQs:
SN Writer not booting phone into Meta Mode automatically.
Make sure drivers are installed ​
or​
Boot Manually in Meta Mode using Power Button + Volume Down. Check Already in Meta Mode.​
​
Do I need to be on Stock ROM?
Yes.​

Changelog:
27 September 2020:
Update post.
Added one more iteration of barcode.
Added more Screenshots.
Correct minor typos.

thanks alot man
I managed to get apdb files but when i try your command to get mddb i get that error
adb: error: failed to copy '/etc/mddb' to 'Database\mddb': read failed: Is a directory
any help?
and how to know if my bluetooth or wifi mac address is missing and where to find them because nothing of that is written on the phone box

softmaster3 said:
thanks alot man
I managed to get apdb files but when i try your command to get mddb i get that error
adb: error: failed to copy '/etc/mddb' to 'Database\mddb': read failed: Is a directory
any help?
and how to know if my bluetooth or wifi mac address is missing and where to find them because nothing of that is written on the phone box
Click to expand...
Click to collapse
Edit: Solved
Android will automatically generate Wi-Fi / Bluetooth address if not found. No need to worry about that. Thats why I I have mentioned in the post that it will still work fine even without it.

You mentioned wrong paths, /etc/apdb is fine but /etc/mddb doesn't exist(empty folder was created in latest update but still no contents in it). mddb is under /vendor/etc/mddb. Just to avoid confusion and even to make this guide suitable for users who pull the file from TWRP make the /etc/apdb to /system/etc/apdb
---------- Post added at 01:03 PM ---------- Previous post was at 01:00 PM ----------
softmaster3 said:
thanks alot man
I managed to get apdb files but when i try your command to get mddb i get that error
adb: error: failed to copy '/etc/mddb' to 'Database\mddb': read failed: Is a directory
any help?
and how to know if my bluetooth or wifi mac address is missing and where to find them because nothing of that is written on the phone box
Click to expand...
Click to collapse
instead of "adb pull /etc/mddb" use "adb pull /vendor/etc/mddb"

M.A.P said:
You mentioned wrong paths, /etc/apdb is fine but /etc/mddb doesn't exist(empty folder was created in latest update but still no contents in it). mddb is under /vendor/etc/mddb. Just to avoid confusion and even to make this guide suitable for users who pull the file from TWRP make the /etc/apdb to /system/etc/apdb
---------- Post added at 01:03 PM ---------- Previous post was at 01:00 PM ----------
instead of "adb pull /etc/mddb" use "adb pull /vendor/etc/mddb"
Click to expand...
Click to collapse
thanks a lot guys
u two just made my day
and M.A.P u r a life saver i cant thank you enough for ur work on treble for k8 note and ur help here

M.A.P said:
You mentioned wrong paths, /etc/apdb is fine but /etc/mddb doesn't exist(empty folder was created in latest update but still no contents in it). mddb is under /vendor/etc/mddb. Just to avoid confusion and even to make this guide suitable for users who pull the file from TWRP make the /etc/apdb to /system/etc/apdb
Click to expand...
Click to collapse
Done. Thanks for suggestion.

i did write the serial, check warranty and its good
but noticed that the serial written on phone box is 12 Character long not just 8 and sn writer did write 8 only not the whole 12
is that correct??

softmaster3 said:
i did write the serial, check warranty and its good
but noticed that the serial written on phone box is 12 Character long not just 8 and sn writer did write 8 only not the whole 12
is that correct??
Click to expand...
Click to collapse
May I see the image of your box. PM me the image.

done

softmaster3 said:
thanks a lot guys
u two just made my day
and M.A.P u r a life saver i cant thank you enough for ur work on treble for k8 note and ur help here
Click to expand...
Click to collapse
Your welcome, I'm always ready to help

Hi, with the help of your guide, i have recovered my phone. But the problem is still same as it restarts repeatedly,sometimes it worked for 1 day but then again rewstarting. Is there any permanent solution for this?

psbtheone said:
Hi, with the help of your guide, i have recovered my phone. But the problem is still same as it restarts repeatedly,sometimes it worked for 1 day but then again rewstarting. Is there any permanent solution for this?
Click to expand...
Click to collapse
Show your phone to a technician. It may be due to battery or some other reason.

Im getting remote object does not exist error for both commands

WP7 Barcode
Hi,
I was wondering how did you find the correct Barcode format? I have spent 2 days trying with different combinations and I still have not succeeded in restoring the serial number in my Oukitel WP7. It still gives me the generic serial number 123456789ABCDEF.

oxord said:
Hi,
I was wondering how did you find the correct Barcode format? I have spent 2 days trying with different combinations and I still have not succeeded in restoring the serial number in my Oukitel WP7. It still gives me the generic serial number 123456789ABCDEF.
Click to expand...
Click to collapse
Did some Trial and Error to figure out correct (probably) barcode format. In addition to this, you'll also need specific database files for your phone in order restore it.

kk9999gada said:
Did some Trial and Error to figure out correct (probably) barcode format. In addition to this, you'll also need specific database files for your phone in order restore it.
Click to expand...
Click to collapse
Man this thing is driving me crazy. I have tried every single combinations and did so many googling and there are not a lot of information about this. The other problem is that the Oukitel WP7 does not have a Product Number written on the box or on the back of the device, there is only a serial number and a barcode with 13 numbers under it. I even tried the FCC ID that is written at the top. I have been spending few days trying. I think the only way to know the correct format is to ask someone who has the same device to view it using Maui Meta by viewing the hex format or exporting the NVRAM to an ini file. I doubt anyone would help me with this though. I have the database files from the stock image. Anyways thanks man

oxord said:
Man this thing is driving me crazy. I have tried every single combinations and did so many googling and there are not a lot of information about this. The other problem is that the Oukitel WP7 does not have a Product Number written on the box or on the back of the device, there is only a serial number and a barcode with 13 numbers under it. I even tried the FCC ID that is written at the top. I have been spending few days trying. I think the only way to know the correct format is to ask someone who has the same device to view it using Maui Meta by viewing the hex format or exporting the NVRAM to an ini file. I doubt anyone would help me with this though. I have the database files from the stock image. Anyways thanks man
Click to expand...
Click to collapse
That would be better.
There is no need for Part No. or Barcode (both can be replaced with spaces). The only thing required is Serial No.

kk9999gada said:
That would be better.
There is no need for Part No. or Barcode (both can be replaced with spaces). The only thing required is Serial No.
Click to expand...
Click to collapse
I tried that as well with so many different ways and with spaces and without. I guess the length also matters. I even filled all 63 characters to see if anything changed in settings but it still showed the generic serial number. I am starting to wonder if sn tool is writing the data in the correct location. I am sure I am using the correct database files because I got them from the factory image from the official website and I am able to write the IMEIs correctly.
I am thinking now to go through the serial number which is 16 characters from left to right. Each time I add a space on the left and no spaces after the serial so first try would be only the serial then a 1 space before it then two spaces before it until I reach the 63 characters. This is like 50 restarts and if that does not work I will try in a same manner but this time full up spaces after the serial and do the same by adding one space on the left each time so first try would be the serial number and the remaining will be spaces up to 63 characters the second time will be one space before the serial and remaining spaces after it up to 63 and so one. I know it's crazy but if all that does not work I am not sure what else to do.

Hi
This happened to me with this dangerous spflash tool. WIPED everything. I followed this guide , It PASSES without any errors but doesnt write anything to my phone. Box has a code bar like this 6 970502 270581 then MEID code of 14 characters , than IMEI1 code and a IMEI2 code and finaly a S/N code of 15 characters.
As i said it PASS but doesnt show IMEI, version base band , bluetooth address, Serial number ,
Thank you very much spflash tool. Had to get another phone.
Phone is a MEDIATEK mt6763T.
Only thing that i dont understand from guide is how to enter Serial number in sn writer. Did it many ways. 33 characters and 64 characters with spaces.
If anyone has any idea , please show me the way. thx.