Ok, so long story short, I made a nandroid of my wife's water damaged LG G2 (turns on but touchscreen screwy) and restored it to her brand new LG G2...that is...I restored ALL the partitions...including EFS (yes, major id10t).
So the IMEI zeroed out and she was getting "G" data service only.
After following these steps: http://forum.xda-developers.com/showthread.php?t=2701861
I was able to restore her IMEI, and 4g returned, however, only briefly. After 4-5 minutes with working 4g (and not changing anything), it switches back to "g" or "e" and stays that way. Each time I restore a nandroid (without the efs this time), it picks up 4g and then it switches over to G/E permanently. I'm guessing the network is detecting something wrong with the device..but what?
I know I must've really stuffed the EFS partition, but before paying the LG service center to fix it, is there anything else I can try??
Edit: Just restored a tot from here:
http://forum.xda-developers.com/showthread.php?t=2432476
No luck, imei is still there but still on G/E for data.
you probably have tried it already, but have you tried lg flash tool? under recover from a bad flash
sent from the grey stuff inside my skull
demonoid phenomenom said:
you probably have tried it already, but have you tried lg flash tool? under recover from a bad flash
sent from the grey stuff inside my skull
Click to expand...
Click to collapse
Thanks mate just came back to report and saw your suggestion.. have literally just flashed a Korean kdz with lg flash tool and for some reason it wiped my IMEI blank. Went through, re-wrote IMEI, 4g is back up, it's been up for almost 30 mins now which I'm pretty sure is longer than usual. Hopefully that's fixed it!!
EDIT: and as I submit my reply, it goes back to G/E
Update: Tried the official LG mobile support tool. 4G came back up, everything looked good, aaaand its just switched back down to G/E again.
Update 2: When I switch network mode from GSM/WDCMA/LTE auto to another option (GSM/WDCMA auto, WCDMA only or GSM only) and then immediately back to LTE, it reconnects to 4G, and will stay on 4G, H+ or 3G for as long as I am using data. Once I stop browsing (after 1-2 mins), it goes back down to G and I have to go through the same process to get 4G back up. Still confused as fheck
Hi,
to recovery my D802 brick,I brought it to a guy to fix it and he used some tools( octopus, JTAG with hardware tool). He recovered the bootloader and up stock rom, recover IMEI. ..
My phone was back, but have a big problem: The 3G signal had gone. He fixed a lot of time( recovery IMEI, upgrade QCN ...)but it only have 3G signal in a few minutes and still gone. after the phone restart, it need manual choosing network, switch to GSM (2G) and after that switch to 3G (WCDMA). Now I have to choose GSM because changeing to 3G will have no signal
My phone is 16 GB D802, import from China market( some software is Chinesse).
Now my stock rom is:
TWN/TAIWAN LGD802 2013/11/30 D80220C
Can someone have the same kind of G2 like me, please use QPST tool to port QCN file for me?
Thanks
Did you check that if your phone has apn? Maybe you need to make your apn settings.
Have you opene it? Is it a true d802?
_____________________________________Read more write less and be smart
My phone is international version so does not need APN.
Before I root & bricked my phone, everything work well, but after recover boot, something wrong with 3G signal.
I switch it to 2G and switch again in 3G, sometime I have 3G signal in a few seconds.
siggey said:
Have you opene it? Is it a true d802?
_____________________________________Read more write less and be smart
Click to expand...
Click to collapse
Yes, I bought a new phone in store, It true D802
Vs980 Qcn
khanh248 said:
Hi,
to recovery my D802 brick,I brought it to a guy to fix it and he used some tools( octopus, JTAG with hardware tool). He recovered the bootloader and up stock rom, recover IMEI. ..
My phone was back, but have a big problem: The 3G signal had gone. He fixed a lot of time( recovery IMEI, upgrade QCN ...)but it only have 3G signal in a few minutes and still gone. after the phone restart, it need manual choosing network, switch to GSM (2G) and after that switch to 3G (WCDMA). Now I have to choose GSM because changeing to 3G will have no signal
My phone is 16 GB D802, import from China market( some software is Chinesse).
Now my stock rom is:
TWN/TAIWAN LGD802 2013/11/30 D80220C
Can someone have the same kind of G2 like me, please use QPST tool to port QCN file for me?
Thanks
Click to expand...
Click to collapse
I use google translate my English is very bad
My phone does not have 3G service vs980 model LG G2 gives warning
g2 vs980 QCN file ?
Hello!
I have a Galaxy Note 3 SM-N900 that I got from a friend. When my friend gave it to me he still had all his stuff on it so I did a factory reset on the phone. After I reset it the phone had a null IMEI and an unknown baseband. I'm pretty sure the problem is with the modem as I've flashed the stock firmware on the phone several times, I've tried almost all the custom roms on the phone, I've even flashed a whole boatload of different modems.
One of the times I was at school I pulled out my phone to change my music and I noticed it had signal. The phone had signal in different parts of the school and it also had a working IMEI and a baseband. I called 911 to test if the phone worked and the call went through as if the phone never had an issue to begin with. I haven't been able to get any signal on the phone since then. I don't know what else to do and I was hoping someone could help me here! Thanks in advance for those who try to help me!
IMEI Standard answer is to restore your backed up EFS folder as per the faqs and guides .
You may well have a lose connection/ sim within the phone if its intermittent on .
Sadly I don't have a backup of my EFS. I had reset my phone from the settings menu so I didn't think that would cause any problems. Is there anyway I can get a backup of an EFS for the sm-n900 or are there any other solutions?
Is there anyway I can get a backup of an EFS for the sm-n90
NO
You could try flashing a stock lollipop firmware .
Again, I've tried that multiple times already. My EFS folder should be fine if I got signal randomly. My sim contact isn't loose as when I got signal I didn't have a sim in the phone. I think the problem is my modem but if it is I don't even know which modem to use.
Modem for your location/ network .
How do I find the correct modem? I live in the US and my network is MetroPCS
Also, thank you for trying to help me. I honestly appreciate it.
Please help me anyone!
USE AT YOUR OWN RISK
This guide is intended for those individuals who can not use 3g or LTE but 2g works perfectly for them or they have lost their network and flashing different radios does not help
To check if you have this problem, go to settings>more>Mobile Network>Manual Search
You should have GSM / WDCMA/LTE or others depending on your network from all networks in your area.
What do you need :
*Drivers installed
*USB debugging (enable by going into settings>software information> tap on build number 10 times and developer options will appear in settings at the end. Enable USB debugging from there)
*ROOT
*QPST (QPST DOWNLOAD) LINK2
*EFS BACKUP TOOL (EFS BACKUP THREAD)
* Device specific backup of QCN (FIND IT YOURSELF AS IT WILL CHANGE YOUR IMEI TOO)
*DIAG MODE ENABLED
This is how to enable diag mode via platform tools using ADB on LG devices
Code:
adb shell
su
echo 1 > /sys/devices/platform/lg_diag_cmd/diag_enable
setprop sys.usb.config acm,diag,mtp,adb
It is preferred to clear these partitions by using these commands and restart your phone before flashing qcn files. I wiped wrong partitions (tz)using these commands and I got a HARD BRICK. YES A HARD BRICK so be very careful
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p21
dd if=/dev/zero of=/dev/block/mmcblk0p22
dd if=/dev/zero of=/dev/block/mmcblk0p24
Restore by, where XX is the number and YY name of partition
Code:
dd if=/dev/block/[B]mmcblk0pXX/B] of=/sdcard/[B]YY[/B].epb
Example
Code:
dd if=/dev/block/mmcblk0p9 of=/sdcard/system.img
However, you can go ahead and clear these partitions only if you had a previous backup by blocks like EFS FILE EXPLORER. modemst1, modemst2, fsg, fsc,dbi, ddr, pad
Check which partition corresponds to which block by
Code:
ls -al /dev/block/platform/msm_sdcc.1/by-name
Once your device is connected, drivers and software installed,
You may need to first go to QPSTConfig which is located at QPST > Bin. There you will need to select port which will show your snapdragon model.
Go to QPST > Bin> QPSTServer.exe
1.A globe would appear in taskbar. Click on it and select software download.
2.Select port of your diagnostic mode in restore tab of software download
3. Once in software download, backup your current QCN (just as a backup to be safe)
4. Restore the QCN you found from google. Make sure it is device specific (use d850 QCN for d850 only)
5. Device would restart and automatically start to search 3g and LTE signals
Good luck
My original QCN was 31kb which clearly showed lost of data but the one that worked was about 500kb.
Lastly there are other methods to restore as well which I will look into so I can post in more details so your IMEI does not change.
Edit: You can do it by changing NV VALUE of 457 to your default value to keep your imei number as well
I will try to backup my radio partitions if someone needs help to fix their network issues or other possible solutions that could be found
HOW TO REVERT YOUR IMEI BACK TO ORIGINAL
1. Download EFS Professional. FROM HERE
2. Make sure you are rooted and busy box working.
3. Use commands as stated above to boot your phone in DIAG mode. This can be done anytime after connecting your phone to the PC.
4. Go to Qualcomm NV tools
5. Choose right port and connect.
6 Go to Secure Ops. tab and change imei from there. Make sure you have a full backup.
If this fails, you can use QXDM and go to NV tools and manually change your IMEI back to its real value. You will need to go to NV Values tab and then on side tab choose Security from All, and then change IMEI number to your real one. You can check details how to change values in QXDM in futher reading below. Samsung S5 thread explains it really well.
If you still are not sure, you can use QPST software. Go to NV manager and find your IMEI number after connecting the phone in diag mode. Usually it is 550 or 457 value.
Use Imei converter from attached files below and insert the converted values.
Good Luck
THREADS TO LOOK FOR FURTHER READ
Unlock Bands and how to boot into Diag mode All credits to @olokos for his guide
Unlock LTE bands and go into diag mode
All credits to @fffft for his guide
FOR BEST RESULTS WHICH I FOUND HAD MORE SUCCESS WITH
1. First understand the problem fully here
2. Flash a working qcn to your device
3. Wipe partitions as commands given above
4. restart
5. Flash a working qcn on it again. Preferably the same one
6. Check if you get signals now, if not then do a factory reset and see
Profit ? No
7. Install TOT stock 4.4.2 or Lollipop (I had more success with Lollipop)
8. Install a qcn from another device. Just to break all your signals (do at your own risk) I flashed a D855 qcn to my d850
9. Restart and wipe partitions
10. Reflashed working Qcn again
Profit ? No
It did not work till here so I moved to stock lollipop by flashing zip in TWRP. If you have TOT method, that is better.
So I went to flash Lollipop stock with modem of D850. (because it was zip and did not include modem. In TOT/ KDZ all partitions are flashed so you do not need to flash modem separately) So i wiped partitions again and then I flashed QCN using cracked version of Z3x Lg Tools twice. (same qcn but two times) and then restarted.
It restored everything back. Everything came to work fine
Z3X Cracked Download here
WHAT YOU CAN DO TO HELP OTHERS (needs root and busybox installed)
I suggest you make a backup of your EFS via TWRP & EFS TOOL before tinkering with hidden menu or anything at all. If you do these steps correctly, you do not risk of any damage to your device.
Download EFS Tool from here
http://forum.xda-developers.com/atta...6&d=1419867628
Main thread of it
http://forum.xda-developers.com/gala...546?styleid=18
1. go in backup tab
2. select all partitions
3. Select 3 partitions
backup modem, modemst1 and modemst2 and upload it for me so I can try to restore the settings to see if that works.
MAKE SURE YOU WRITE YOUR DEVICE MODEL when attaching those mentioned partitions AND DOUBLE CHECK IT AS FLASHING WRONG radios can permanently damage your device.
DEVICE I FIXED WAS D850 ATT Variant and had success with other variants as well
UPDATE
I have attached a D855 qcn with null imei. You will need to change your imei yourself which you can find by removing your battery. Make sure to make a backup before trying anything and I WILL BE NOT RESPONSIBLE
HISTORY --- JUST TO COMPARE IF YOU HAVE SIMILAR PROBLEM
hi there,
I am working to fix the problem many users have faced and therefore trying to find possible solutions. I need some partition images from you guys if you can provide me so I can try to fix the issues.
THE PROBLEM AND HOW IT STARTED :
I have got a D850 which I am using in Europe. The problem started when I inserted an LTE enabled sim and went to hidden menu to change my mode to LTE only, I was on Fulmics Rom 2.7 Lollipop at that time. Before that, ii network search, I could see all WCDMA, GSM and LTE bands used by different providers by manual search.
After changing it to LTE only, I could not see any signal bars and it started searching. As I was in an area where LTE signals were weak, so I thought maybe I need to change back to GSM/WCDMA/LTE from settings. Signals returned to normal but only to gsm. LTE and 3G were lost as searching for networks did not help at all.
I tinkered with hidden menu and selected GSM/WCDMA/LTE ( 3845#*850# ) from hidden menu
and
used this ( *#*#4636#*#* ) to change back to GSM/WCDMA/LTE from another hidden menu.
It didnot help.
I flashed different modems (one from kitkat and two versions from Lollipop) but that didnot help either.
I reverted back to KITKAT using TOT method and the WCDMA and LTE were lost forever when i tried to search manually. So I made an EFS backup and started tinkering with hidden method.
Actually I was not expecting that the values would be affected by using the hidden menu to fix my network to LTE only.
I then backup my EFS and tinkered with hidden menu and i was successful in bringing back LTE, however, I was stuck with no 3g.
Using build prop editor, I changed my operator from ATT to OPEN (as ATT does not show default selection menu for GSM/WCDMA/LTE in settings/ both hidden menus) which enabled the option by which I could changed my preferred network type.
In hidden menu, I just enabled VoLTE in LTE > Modem Settings > VoLTE On which brought back LTE.
Next I installed QPST & QXDM to check my NV values and IMEI.
All of those were perfectly fine. No problem at all.
Strangely all the NV values are right. I restored my EFS to old state where I didnot have LTE or 3g. The LTE was gone again.
I again enabled VoLTE from hidden menu and LTE came back.
See attached image for reference.
POSSIBLE SOLUTION :
I think the problem lies in ATT settings as it has preset operator settings which changes from GSM to WCDMA to LTE depending on its values.
Once I selected LTE only, I disabled the WCDMA and somehow broke the AT&T preset settings as you can not change preferred network from settings like D855 or other models. Somehow we need to re-enable these and one possible way would be to flash modemst 1 and modemst 2 from backup.
Please help me find the possible solution
PS : For all those who are wondering if i tried other sims and tried to use 4g/3g on another device. Yes i did and the problem is only in D850
I also made a proper working APN. Plus I check which network I am on by using *#*#4636#*#*
dd if=/home/med/Desktop/tz.img of=/dev/sdb6
Click to expand...
Click to collapse
ANY SUGGESTIONS ?[/U][/COLOR][/B] @hyelton
People who can not flash QCN need to break their Lg lock which is done by flashing someone else Twrp backup of same device on your phone. After this, you will be able to flash QCN without issues
Hnk1 said:
hi there,
I am working to fix the problem many users have faced and therefore trying to find possible solutions. I need some partition images from you guys if you can provide me so I can try to fix the issues.
THE PROBLEM AND HOW IT STARTED :
I have got a D850 which I am using in Europe. The problem started when I inserted an LTE enabled sim and went to hidden menu to change my mode to LTE only, I was on Fulmics Rom 2.7 Lollipop at that time. Before that, ii network search, I could see all WCDMA, GSM and LTE bands used by different providers by manual search.
After changing it to LTE only, I could not see any signal bars and it started searching. As I was in an area where LTE signals were weak, so I thought maybe I need to change back to GSM/WCDMA/LTE from settings. Signals returned to normal but only to gsm. LTE and 3G were lost as searching for networks did not help at all.
I tinkered with hidden menu and selected GSM/WCDMA/LTE ( 3845#*850# ) from hidden menu
and
used this ( *#*#4636#*#* ) to change back to GSM/WCDMA/LTE from another hidden menu.
It didnot help.
I flashed different modems (one from kitkat and two versions from Lollipop) but that didnot help either.
I reverted back to KITKAT using TOT method and the WCDMA and LTE were lost forever when i tried to search manually. So I made an EFS backup and started tinkering with hidden method.
Actually I was not expecting that the values would be affected by using the hidden menu to fix my network to LTE only.
I then backup my EFS and tinkered with hidden menu and i was successful in bringing back LTE, however, I was stuck with no 3g.
Using build prop editor, I changed my operator from ATT to OPEN (as ATT does not show default selection menu for GSM/WCDMA/LTE in settings/ both hidden menus) which enabled the option by which I could changed my preferred network type.
In hidden menu, I just enabled VoLTE in LTE > Modem Settings > VoLTE On which brought back LTE.
Next I installed QPST & QXDM to check my NV values and IMEI.
All of those were perfectly fine. No problem at all.
Strangely all the NV values are right. I restored my EFS to old state where I didnot have LTE or 3g. The LTE was gone again.
I again enabled VoLTE from hidden menu and LTE came back.
REQUEST , WHAT YOU CAN DO TO HELP (needs root and busybox installed)
I suggest you make a backup of your EFS via TWRP & EFS TOOL before tinkering with hidden menu or anything at all. If you do these steps correctly, you do not risk of any damage to your device.
Download EFS Tool from here
http://forum.xda-developers.com/atta...6&d=1419867628
Main thread of it
http://forum.xda-developers.com/gala...546?styleid=18
1. go in backup tab
2. select all partitions
3. Select 3 partitions
backup modem, modemst1 and modemst2 and upload it for me so I can try to restore the settings to see if that works.
See attached image for reference.
POSSIBLE SOLUTION :
I think the problem lies in ATT settings as it has preset operator settings which changes from GSM to WCDMA to LTE depending on its values.
Once I selected LTE only, I disabled the WCDMA and somehow broke the AT&T preset settings as you can not change preferred network from settings like D855 or other models. Somehow we need to re-enable these and one possible way would be to flash modemst 1 and modemst 2 from backup.
Please help me find the possible solution
PS : For all those who are wondering if i tried other sims and tried to use 4g/3g on another device. Yes i did and the problem is only in D850
I also made a proper working APN. Plus I check which network I am on by using *#*#4636#*#*
ANY SUGGESTIONS ?[/U][/COLOR][/B] @hyelton
Click to expand...
Click to collapse
Maybe the D850 does NOT have the bands that the carrier your trying to use it on? Flashing another modem wont enable bands the hardware does not have.
hyelton said:
Maybe the D850 does NOT have the bands that the carrier your trying to use it on? Flashing another modem wont enable bands the hardware does not have.
Click to expand...
Click to collapse
@hyelton
Update :
Please check the guide
Hnk1 said:
USE AT YOUR OWN RISK
This guide is intended for those individuals who can not use 3g or LTE but 2g works perfectly for them or they have lost their network and flashing different radios does not help
What do you need :
*Drivers installed
*USB debugging
*QPST (google it or google UNLOCK ALL BANDS QUALCOMM XDA and download from one of the forum there as it is banned)
*EFS BACKUP TOOL (available at xda or find link in history below)
* Device specific backup of QCN (FIND IT YOURSELF AS IT WILL CHANGE YOUR IMEI TOO)
*DIAG MODE ENABLED
This is how to enable diag mode via platform tools using ADB on LG devices
1) adb shell
2) su
3) echo 1 > /sys/devices/platform/lg_diag_cmd/diag_enable
4) setprop sys.usb.config acm,diag,mtp,adb
Once your device is connected, proper drivers and software installed,
Go to QPST > Bin> QPSTServer.exe
1.A globe would appear in taskbar. Click on it and select software download.
2.Select port of your diagnostic mode in restore tab of software download
3. Once in software download, backup your current QCN (just as a backup to be safe)
4. Restore the QCN you found from google. Make sure it is device specific (use d850 QCN for d850 only)
5. Device would restart and automatically start to search 3g and LTE signals
Good luck
My original QCN was 31kb which clearly showed lost of data but the one that worked was about 500kb.
Lastly there are other methods to restore as well which I will look into so I can post in more details so your IMEI does not change
I will try to backup my radio partitions if someone needs help to fix their network issues or other possible solutions that could be found
REQUEST , WHAT YOU CAN DO TO HELP (needs root and busybox installed)
I suggest you make a backup of your EFS via TWRP & EFS TOOL before tinkering with hidden menu or anything at all. If you do these steps correctly, you do not risk of any damage to your device.
Download EFS Tool from here
http://forum.xda-developers.com/atta...6&d=1419867628
Main thread of it
http://forum.xda-developers.com/gala...546?styleid=18
1. go in backup tab
2. select all partitions
3. Select 3 partitions
backup modem, modemst1 and modemst2 and upload it for me so I can try to restore the settings to see if that works.
MAKE SURE YOU WRITE YOUR DEVICE MODEL when attaching those mentioned partitions AND DOUBLE CHECK IT AS FLASHING WRONG radios can permanently damage your device.
DEVICE I FIXED WAS D850 ATT Variant
HISTORY
hi there,
I am working to fix the problem many users have faced and therefore trying to find possible solutions. I need some partition images from you guys if you can provide me so I can try to fix the issues.
THE PROBLEM AND HOW IT STARTED :
I have got a D850 which I am using in Europe. The problem started when I inserted an LTE enabled sim and went to hidden menu to change my mode to LTE only, I was on Fulmics Rom 2.7 Lollipop at that time. Before that, ii network search, I could see all WCDMA, GSM and LTE bands used by different providers by manual search.
After changing it to LTE only, I could not see any signal bars and it started searching. As I was in an area where LTE signals were weak, so I thought maybe I need to change back to GSM/WCDMA/LTE from settings. Signals returned to normal but only to gsm. LTE and 3G were lost as searching for networks did not help at all.
I tinkered with hidden menu and selected GSM/WCDMA/LTE ( 3845#*850# ) from hidden menu
and
used this ( *#*#4636#*#* ) to change back to GSM/WCDMA/LTE from another hidden menu.
It didnot help.
I flashed different modems (one from kitkat and two versions from Lollipop) but that didnot help either.
I reverted back to KITKAT using TOT method and the WCDMA and LTE were lost forever when i tried to search manually. So I made an EFS backup and started tinkering with hidden method.
Actually I was not expecting that the values would be affected by using the hidden menu to fix my network to LTE only.
I then backup my EFS and tinkered with hidden menu and i was successful in bringing back LTE, however, I was stuck with no 3g.
Using build prop editor, I changed my operator from ATT to OPEN (as ATT does not show default selection menu for GSM/WCDMA/LTE in settings/ both hidden menus) which enabled the option by which I could changed my preferred network type.
In hidden menu, I just enabled VoLTE in LTE > Modem Settings > VoLTE On which brought back LTE.
Next I installed QPST & QXDM to check my NV values and IMEI.
All of those were perfectly fine. No problem at all.
Strangely all the NV values are right. I restored my EFS to old state where I didnot have LTE or 3g. The LTE was gone again.
I again enabled VoLTE from hidden menu and LTE came back.
See attached image for reference.
POSSIBLE SOLUTION :
I think the problem lies in ATT settings as it has preset operator settings which changes from GSM to WCDMA to LTE depending on its values.
Once I selected LTE only, I disabled the WCDMA and somehow broke the AT&T preset settings as you can not change preferred network from settings like D855 or other models. Somehow we need to re-enable these and one possible way would be to flash modemst 1 and modemst 2 from backup.
Please help me find the possible solution
PS : For all those who are wondering if i tried other sims and tried to use 4g/3g on another device. Yes i did and the problem is only in D850
I also made a proper working APN. Plus I check which network I am on by using *#*#4636#*#*
ANY SUGGESTIONS ?[/U][/COLOR][/B] @hyelton
Click to expand...
Click to collapse
from where did you got the qcn file
adil.ali.503 said:
from where did you got the qcn file
Click to expand...
Click to collapse
Google depending on your device model.
D850 qcn
D855 qcn download
Or something on the lines of above
I had two at&t g3. (Both lost their qcn) , one d855 and now I'm using third d850. ( I almost lost qcn on this one too)
I realise that qcn is easily lost on d850 model as even rooting via kingroot can simply damage qcn.
I had to sell all others. Previous models qcn didnt enable 4g for me , however, i flashed these to older device and 4g started to work. And i flashed older qcn to this device and 4g stopped working.
So make sure you find a qcn which enables 4g with 3g n 2g.
I would suggest go to a tech guy in your area who works with unlocking phones and they usually use some kind of boxes to flash qcn.
Another way could be you request a friend whose 4g is working to make a backup and share it with you.
Lastly, find it online and flash it yourself.
You can also request NV values which wouldnt change imei (as long as you change the NV 457 value to 0)
Inbox me for more help.
Good luck
My imei is already 0 and the model is d850 and body is of d855
The problem is that I can't use 3g on it
2g and 4g works fine
Sent from my LG-D850 using Tapatalk
adil.ali.503 said:
My imei is already 0 and the model is d850 and body is of d855
The problem is that I can't use 3g on it
2g and 4g works fine
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
I came here out of curiosity. Next time quote me if you expect a reply.
What you need to do is flash a QCN. I can try to repair your imei number and send you back.
What I will need is your imei number(remove your battery and see under it), model number and your qcn file. Make sure you inbox me these details and I will try to repair it for you.
Good Luck
Hnk1 said:
I came here out of curiosity. Next time quote me if you expect a reply.
What you need to do is flash a QCN. I can try to repair your imei number and send you back.
What I will need is your imei number(remove your battery and see under it), model number and your qcn file. Make sure you inbox me these details and I will try to repair it for you.
Good Luck
Click to expand...
Click to collapse
As I told you that the body of the cell is from d855 and the sticker on the back is also false one with the imei of a d855
Sent from my LG-D850 using Tapatalk
adil.ali.503 said:
As I told you that the body of the cell is from d855 and the sticker on the back is also false one with the imei of a d855
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
I can provide you with a qcn for device d850 but make sure you backup your own. Tell me if you would need it.
Also, the best thing would be that you send me your qcn and i try to repair it and send it to you back,
But i think the best thing could be to provide you with NV values. let me see if i can work something out.
QCN for d850
https://www.sendspace.com/file/ak2hkl
Hnk1 said:
I can provide you with a qcn for device d850 but make sure you backup your own. Tell me if you would need it.
Click to expand...
Click to collapse
Can you confirm that 2g,3g and 4g is working with that qcn
And a question for safety that what can happen at most if something goes wrong
Sent from my LG-D850 using Tapatalk
adil.ali.503 said:
Can you confirm that 2g,3g and 4g is working with that qcn
And a question for safety that what can happen at most if something goes wrong
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
MAKE A BACKUP OF YOUR QCN. either using QPST or using TWRP (TWRP from xda as it can also backup EFS)
I flashed many and i had none problems. As long as you do have a backup to go back to. There is no problem.
PS : Share your qcn and maybe I can try to repair it. I got NV values from my device.
If your friend has the same device. Grab qcn from him too and we can work something out as well
Hnk1 said:
MAKE A BACKUP OF YOUR QCN. either using QPST or using TWRP (TWRP from xda as it can also backup EFS)
I flashed many and i had none problems. As long as you do have a backup to go back to. There is no problem.
PS : Share your qcn and maybe I can try to repair it. I got NV values from my device.
If your friend has the same device. Grab qcn from him too and we can work something out as well
Click to expand...
Click to collapse
I already have a backup of efs I made by twrp
Is it all I've to do?
Sent from my LG-D850 using Tapatalk
adil.ali.503 said:
I already have a backup of efs I made by twrp
Is it all I've to do?
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
Although it is enough but i will go ahead and make a backup of qcn using qpst.
Hnk1 said:
Although it is enough but i will go ahead and make a backup of qcn using qpst.
Click to expand...
Click to collapse
I'm uploading my efs to Dropbox, I'll give you the link than
Can I just restore the efs files if you can provide me coz I don't want to mess with qpst
It's a bit difficult to me as I'm just a noob
Sent from my LG-D850 using Tapatalk
Hnk1 said:
Google depending on your device model.
D850 qcn
D855 qcn download
Or something on the lines of above
I had two at&t g3. (Both lost their qcn) , one d855 and now I'm using third d850. ( I almost lost qcn on this one too)
I realise that qcn is easily lost on d850 model as even rooting via kingroot can simply damage qcn.
I had to sell all others. Previous models qcn didnt enable 4g for me , however, i flashed these to older device and 4g started to work. And i flashed older qcn to this device and 4g stopped working.
So make sure you find a qcn which enables 4g with 3g n 2g.
I would suggest go to a tech guy in your area who works with unlocking phones and they usually use some kind of boxes to flash qcn.
Another way could be you request a friend whose 4g is working to make a backup and share it with you.
Lastly, find it online and flash it yourself.
You can also request NV values which wouldnt change imei
Inbox me for more help.
PS : i have come up with severe viral conjuctivitis so i might not be able to help you till it clears up.
Good luck
Click to expand...
Click to collapse
Hi I have a D855 LG G3 and I have the same exact problem, my 2G works perfectly fine but I am no longer able to access LTE or 3g (signal shuts down when I switch to 3g or LTE mode, Service is disabled).
My IMEI is fine and is not lost... I can see it in About screen, I have tried installing different lollipop modems and even downgraded to Lollipop and Kitkat rom and even tried Cyanogenmod 12.1, I never had the signal back on.
Can you please share the LG D855 QCN? I have no idea where to get it, googling has not gotten me anywhere, I saw a SINGLE site where I could download it but it had a password.
adil.ali.503 said:
I'm uploading my efs to Dropbox, I'll give you the link than
Can I just restore the efs files if you can provide me coz I don't want to mess with qpst
It's a bit difficult to me as I'm just a noob
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
Well, i will tell you step by step how to make a backup of QCN and how to flash QCN. It will be fine.
How did you manage to back it up ?
Mate you sent me EFS which means I need to use it on my device and then fix it and then send you.
Can you manage a QCN ?
It is very easy. Let me get back to you by night but I WILL PREFER QCN
pjl3dm said:
Hi I have a D855 LG G3 and I have the same exact problem, my 2G works perfectly fine but I am no longer able to access LTE or 3g (signal shuts down when I switch to 3g or LTE mode, Service is disabled).
My IMEI is fine and is not lost... I can see it in About screen, I have tried installing different lollipop modems and even downgraded to Lollipop and Kitkat rom and even tried Cyanogenmod 12.1, I never had the signal back on.
Can you please share the LG D855 QCN? I have no idea where to get it, googling has not gotten me anywhere, I saw a SINGLE site where I could download it but it had a password.
Click to expand...
Click to collapse
Check your inbox. Tell me the result. And always remember : BACK UP BACK UP BACK UP FIRST
pjl3dm said:
Hi I have a D855 LG G3 and I have the same exact problem, my 2G works perfectly fine but I am no longer able to access LTE or 3g (signal shuts down when I switch to 3g or LTE mode, Service is disabled).
My IMEI is fine and is not lost... I can see it in About screen, I have tried installing different lollipop modems and even downgraded to Lollipop and Kitkat rom and even tried Cyanogenmod 12.1, I never had the signal back on.
Can you please share the LG D855 QCN? I have no idea where to get it, googling has not gotten me anywhere, I saw a SINGLE site where I could download it but it had a password.
Click to expand...
Click to collapse
Did you checked your hangouts
Sent from my LG-D850 using Tapatalk
adil.ali.503 said:
Did you checked your hangouts
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
here you go.
Just run restore via twrp and your imei should be fixed. Good luck
I will appreciate if you tell me if it worked for you!
Hnk1 said:
here you go.
Just run restore via twrp and your imei should be fixed. Good luck
I will appreciate if you tell me if it worked for you!
Click to expand...
Click to collapse
Sorry to say it doesn't work
Imei is still 0 and I can't get any 3g signals
I think its the problem with the frequency band
Thanks for your help ?
Sent from my LG-D850 using Tapatalk
I'm still getting 4G LTE signals but it seems that I cannot get any data at all (any website can't load). Will this help solve it?
hello..i'm kind of new here so,i need some help..i've tried to add band 38 tdd on my s4 gt-i 9505,(trying to get 4g-lte on digi mobile,Romania) with qpst and qxdm by editing nv values on 6828 and 6829,taken from nv calculator..didn't make it,so i have restored my original qcn file ,backuped with qpst before..all good ,the problem that i have now is that network signal dissapears sometimes,and especially when i lock my phone..didn't expect that..what should i do??i have changed several modems for 4.4.2 ,i have goldeneye,and no result..i have tried many qcn files,no succes..my efs partition is ok,also my imei..is it possible that efs partition not to be the original one?or maybe she is not mounted??with root browser i can see the files inside and seems to be ok..i also made two different backups,just in case..i'm surprized....if the phone screen stays on,everything is ok..when i lock him,no network..lol..any ideas,pls??i apreciate..thank you in advance!
tadam!
Thank you all for your suport,problem solved with I9505XXUFNA1-MODEM flashed wit odin307,phone mode(not pda)..don't ask me why..still don't know..))
Anyone knows how can i activate 38 tdd on international s4 gt-i9505?excepting methods on the net..not working till now..