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Hi,
I've read dozen of similar threads but no solution so far.
My phone can't connect to 3G at all. The moment I switch to only WCDMA phone drops network completely.
Everything else works without a problem. I've tried other sim cards (same and other network) no difference.
Baseband and IMEI are OK.
I've tried flashing modems, stock firmwares and it's always the same.
Current state:
AP: I9505XXUFNB9
CP: I9505XXUFNB9
CSC: I9505OXXUFNB2
Please help, I'm running out of ideas.
1. Make a backup of ur Internal Memory
2. Make a factory reset (Settings > Accounts > Back Up and Reset > Factory Data Reset > Reset Device > Delete All/Erase Everything.)
3. Conect it to Kies 3
4. Kies 3 will give u the info you need for know ur correct CSC. This will be btw parenthesis close CSC.
5. Knowing ur CSC, take a look for this firmware in Sammobile.com
6. Download and flash it with ODIN (Dont flash a "Black EDITION" if ur phone isnt it)
7. If this not work, you can get it to repair :highfive:
Joku1981 said:
1. Make a backup of ur Internal Memory
2. Make a factory reset (Settings > Accounts > Back Up and Reset > Factory Data Reset > Reset Device > Delete All/Erase Everything.)
3. Conect it to Kies 3
4. Kies 3 will give u the info you need for know ur correct CSC. This will be btw parenthesis close CSC.
5. Knowing ur CSC, take a look for this firmware in Sammobile.com
6. Download and flash it with ODIN (Dont flash a "Black EDITION" if ur phone isnt it)
7. If this not work, you can get it to repair :highfive:
Click to expand...
Click to collapse
Did already this before posting. I've read pretty much all threads with similar problems. Thanks anyway.
Any more ideas?
Maybe flash box can help it? At this point I'm really frustrated for not being able to fix this. Had several androids before (s and s2 also) and always managed to repair them. First time for everything For sure I'll take it to repair shop on Monday.
pseudobluz said:
Did already this before posting. I've read pretty much all threads with similar problems. Thanks anyway.
Any more ideas?
Maybe flash box can help it? At this point I'm really frustrated for not being able to fix this. Had several androids before (s and s2 also) and always managed to repair them. First time for everything For sure I'll take it to repair shop on Monday.
Click to expand...
Click to collapse
Same problem here. I have a S4 i9505 free of carriers. No 3G signal, only EDGE (2G).
I updated modem, nothing happened, Then updated firmware to the last one, and nothing. The problem is still there.
What can I do?
Last firmware installed: I9505XXUGNI2
When did you start experiencing this? Did you update your firmware and suddenly this happened? I too have the same problem. It started when I did sim unlock. I'm not able to fix it up to now.
sergiomc22 said:
Same problem here. I have a S4 i9505 free of carriers. No 3G signal, only EDGE (2G).
I updated modem, nothing happened, Then updated firmware to the last one, and nothing. The problem is still there.
What can I do?
Last firmware installed: I9505XXUGNI2
Click to expand...
Click to collapse
In my case it was damaged EFS partition. The only way to repair it was using Box. So I would suggest the same to you. At least you'll save a lot of nerves
pseudobluz said:
In my case it was damaged EFS partition. The only way to repair it was using Box. So I would suggest the same to you. At least you'll save a lot of nerves
Click to expand...
Click to collapse
HI, thanks for your answer.
What is Box? How do I repair EFS partition?
In my case (actually, my friend's phone), it connects to EDGE and it can call to any destiny. Sometimes, loses signal, but with the new firmware, it appears that works better. But no 3G/H+ signal.
Maybe she can go to the service (SAT) ... and they would repair the EFS??
Thanks for your help.
PS: Sorry for my english. I speak Spanish.
We have the same problem. I already brought my S4 to the official samsung service center. Only thing they did was flash an updated ROM from my carrier. It didn't solve the problem as expected because I've done the same already before taking the phone to them. I also already flashed different modems with no luck. This is getting really frustrating. I wish you luck in your search for a solution. Subscribing to this thread.
sergiomc22 said:
HI, thanks for your answer.
What is Box? How do I repair EFS partition?
In my case (actually, my friend's phone), it connects to EDGE and it can call to any destiny. Sometimes, loses signal, but with the new firmware, it appears that works better. But no 3G/H+ signal.
Maybe she can go to the service (SAT) ... and they would repair the EFS??
Thanks for your help.
PS: Sorry for my english. I speak Spanish.
Click to expand...
Click to collapse
Box is device built based on reverse engineering of mobile phones allowing user to perform more advanced service operation (for example EFS repair) on handhelds/cells. It usually comes with special set of cables for specified vendor. Google for example 'z3x box' for an idea. It's cheaper for you to bring the phone to some service shop which has box for Samsung phones. They can settle this in a matter of minutes.
Sorry for the late answer, been very busy lately.
I was digging for like a week or so, because i have the same problem. ( i have 2g / gsm signal, but when i switch to wcdma (or 3g) only, i was getting no signal at all. (the circle with the line in it). My imei is not broken/missing, and from all the forums i've been digging i came to conclussion that there are several possible solutions as i think, but im not too deep into that matter, so im just sharing my thoughts, dont try these if you dont know what are you doing, i say again, im not completely sure if any of those gonna actually work.
1st - EFS Proffesional (along with Qualcomm NV Tools) - which can be found here, in xda. (The program itself has a ****load of options, and i dont have the knowledge to operate with it). Qualcomm NV Tools is a part of EFS Pro.
2nd - the secret code menu - Service Mode ( *#197328640# ) - I wasnt able to enter it at first, so downloaded the Shortcut Master (lite) (free in Play Store) and found it there, launched it with option 0 (launches a code with root priv) and i entered the service mode.) i've explored it, there are a lot of settings there, like backup, restore, rebuild, changing bands and so on and on and on, and somewhere inside it, there MIGHT be a solution inside those. I'd like to hear something more about those options from someone who actually understands them.
Other option is JIFF BOX, which i dont know how actually found, it seems that program requires qualcomm usb drivers for PC, and i think this is something like virtual box or w/e it is, i couldnt run it, didnt have time atm, but this program is given to wake up even completely dead sgs4 somehow, so why not bringing back the 3g?
And the last thing ive found - SRS - (found it in sammobile's forums. Some kind of imei/efs/baseband/etc restorer, reflasher or w/e it is. But this is paid program with free trial for unlocking the screen pattern. )
At last, you/me, can always go for a service with box for samsung phones and pay for reflash/repair. Is this the only solution?
Forgot to tell - im using i9505. simfree, no brands etc....
Can't edit previous post. This is the actual service mode code, don't know what are the prefixes and suffixes, I'm running it with root and shortcut master lite. It seems playing with the settings can help, but we need ppl who can really understand these settings. If you need / want, ill make more screenshots.
Sent from my GT-I9505 using XDA Free mobile app
I was also able to read IMEI and have used EFS Professional and NV Qualcomm tools but without success. EFS partition was damaged anyway. So yes box is the only solution in a majority of cases.
pseudobluz said:
I was also able to read IMEI and have used EFS Professional and NV Qualcomm tools but without success. EFS partition was damaged anyway. So yes box is the only solution in a majority of cases.
Click to expand...
Click to collapse
Can you explain a bit more what have you tryed with EFS Pro and NV Qualcomm tools?
To others: What about that secret menu? Can something be done by the options inside?
deffecto said:
Can you explain a bit more what have you tryed with EFS Pro and NV Qualcomm tools?
To others: What about that secret menu? Can something be done by the options inside?
Click to expand...
Click to collapse
Actually another member helped me with this. Look here:
http://forum.xda-developers.com/showthread.php?t=2739679
OK, *FIRST TIME POSTER HERE* so please excuse any unintentional ignorance of rules or etiquette.
I'm just super excited to get this phone working the way I like it, and it's all thanks to xda so I was moved to create an account to express my thanks AND hopefully help a few people back.
How? Well after reading through pretty much everything I could find on the N910S here and elsewhere, it seems that no-one (yet?) has been able to confirm a working mod that meets the following:
1. N910S Exynos Korean version
2. Some kind of custom English only ROM that removes the Korean characters from keypad and other network-apps
3. Removed bloatware
4. Easy-to-follow, how-to guide
Seems there were quite a few ppl who wanted the same thing so I just want to let you know what I did to get it working.
*PLEASE NOTE* Everything contained in this summary was found through over a week of tedious reading, research, trial & error. BUT in the end all the necessary information was contained, or linked to, in xda forums. It's just that all the relevant information and files were scattered over many different threads and topics. I'm just collating it all here to hopefully make it easier for the next person to find.
Background info: I'm technically competent but relatively new to phone modding - I've only rooted my HTC E8 before this to remove bloatware. This is my second project. I live in HK and started with a completely stock OEM Note4 N910SKSU2DPK2 after a factory reset. I then did the steps below in order (not including many failed attempts and re-starts, of course) These are just the broadstrokes of what I did, if you need to know how to do each step in detail then please search the forum. It's quite clear and there's no need for me to repeat it here anyway
As it's my first post and I'm in a rush to leave the house soon, I have not bothered with screenshots or links - I'm happy to provide if someone can tell me if the preferred method is link to the thread where the info was found, or you just want a link to the files I used. Again, they were all found through links in threads on xda anyway but I'll have to spend some time to find them again as I didn't bookmark them. Also, if you want the files someone will have to tell me how to upload them here. The filenames/packages are given in [brackets] so maybe you can just search for them?
0. Reminder to backup your phone and data first!
1. Root - was really easy using CF AutoRoot [CF-Auto-Root-trelteskt-trelteskt-smn910s] Just download to your PC and package includes Odin, which for first-timers is the official Samsung software used to flash to your phone.
2. Download:
- ClockWorkMod [n910s-cwm-recovery-6.0.5.1(1113).tar]
- SuperSU [SuperSU-v2.79-201612051815.zip]
- C Mod ROM [C_ROM_N910s.v2HNY.zip] (the site is Korean-based but google translate of the page was enough for a non-Korean like myself)
- N910S DPK2 modem file [N910S-20170114T050808Z.zip] The original thread had links to every modem variant they knew of, so should work with other S/L/K variants BUT of course I haven't tried them.
3. Copy files for SuperSU, CMod ROM, and DPK2 modem onto an external SD card and insert into your phone.
4. Put your phone into Download Mode (from power-off state, hold Vol Down + Home + Power)
5. Run Odin on your PC, connect phone. On Odin, click <AP> and select CWM file. Do not check or modify any other options. Click <Start> to flash CWM recovery to your phone.
6. Once it's done, disconnect from PC, and restart your phone into the new custom recovery mode (from power-off state, hold Vol Up + Home + Power)
7. Choose Install from zip and select the SuperSU file from your ext SD card. (I think this step may not be strictly necessary as it's part of CF AutoRoot, but SuperSU is always handy to have anyway)
8. Reboot into Recovery mode again (available in Advanced menu)
9. Install zip - now choose the CMod ROM file. Reboot into system and have a look around the new UI. It was at this stage that I noticed two things: my HK carrier SIM was not recognised, and as the ROM boasts some Note 5 features the Always On Display function would cause my Note 4 to not be able to wake up once the screen was turned off (manually or via time-out). I had to pull out the battery, restart phone, go straight into Settings -> Display and turn off the Always On Display functionality.
10. To fix the SIM card not recognised, reboot into Recovery Mode again and Install zip - choose the DPK2 modem file (or whichever version your phone's modem is). Restart phone, wait a few minutes and SIM should now work.
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
That's it - hope it helps! Thanks for reading, and don't forget I'm new to this AND a first time poster so be kind in comments/questions please
Update and question
Kookinen said:
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
Click to expand...
Click to collapse
So by following steps in this thread https://forum.xda-developers.com/note-4/help/note-4-sm-n910s-sk-telecom-issues-t2929571/page2 for SKT, I was able to change to LTE Band 3 or 7 (which is what my sim provider offers) and get an LTE signal for data, BUT then I lose voice call functionality. If I choose Band 3 Preferred, it says band changed success, but just connects via HSUPA and I get voice, but no LTE (just like before, or if I choose Automatic)
Can anyone please help me figure this out? How can I get voice AND LTE? Many thanks in advance!
PS - also after I reflashed my modem.bin the baseband changed from N910SKSU2DPK2 to N910SKSU0DPK2. I don't know what this means nor if it has anything to do with the problem I've described above? Can anyone help to explain? Thanks...
Kookinen said:
So by following steps in this thread https://forum.xda-developers.com/note-4/help/note-4-sm-n910s-sk-telecom-issues-t2929571/page2 for SKT, I was able to change to LTE Band 3 or 7 (which is what my sim provider offers) and get an LTE signal for data, BUT then I lose voice call functionality. If I choose Band 3 Preferred, it says band changed success, but just connects via HSUPA and I get voice, but no LTE (just like before, or if I choose Automatic)
Can anyone please help me figure this out? How can I get voice AND LTE? Many thanks in advance!
PS - also after I reflashed my modem.bin the baseband changed from N910SKSU2DPK2 to N910SKSU0DPK2. I don't know what this means nor if it has anything to do with the problem I've described above? Can anyone help to explain? Thanks...
Click to expand...
Click to collapse
Band 3 and 7 are supposed to stick with default settings. I tried it once during my trip to Malaysia and it worked flawlessly. Any chance you might want to contact your carrier?
The trick to switch from 4G-3G-4G works. ATT band 5 preferred
Kookinen said:
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
Click to expand...
Click to collapse
Have you tried switching to 3g only, then switching it back to 4g when available in your phone setting??
I had similar issue with 4g and apparently, this strangely simple trick solved my problem.
Anyway, I tried to download the ROM from the Achonapp but took me ages and I couldn't flash it either. May I know where you got the ROM from?
nosediger said:
Have you tried switching to 3g only, then switching it back to 4g when available in your phone setting??
I had similar issue with 4g and apparently, this strangely simple trick solved my problem.
Anyway, I tried to download the ROM from the Achonapp but took me ages and I couldn't flash it either. May I know where you got the ROM from?
Click to expand...
Click to collapse
Tried your suggestion but now it shows No Service
*update* actually I think your "trick" works... After switching to 3G only, it wouldn't switch back to 4G and showed No Service. I rebooted the phone with a different sim and after a few minutes, it automatically connected to 4G AND I now have voice as well! So, all is working properly now and I'm a happy camper. Reboot with the original sim and still works and connects to 4G. So I think you're right it just needed to be "forced" to select 4G preferred. Thanks for the tip!
Yeah I got it from achonapp as well and it took a while - I think I left it going overnight. But the ROM did work for me. If anyone wants the file direct I'm happy to put it up on my google drive if it's not against forum rules etc.
But since then I've switched to miui8 which is also working pretty much flawlessly as daily ROM, but I haven't tested every single little feature of course. If you wanna try it - https://forum.xda-developers.com/showpost.php?p=70596588&postcount=797
Phone Information
Phone Number: Last owner shows up, want this cleared
Android Version: 7.0
Build Number: NRD90M
Software Version: LS997ZV6
Security software: MDF V2.0 release 4
OEM Unlock (On)
USB Debugging (On)
PROBLEM: A sprint V20 was brought to me to have the carrier swapped from [Sprint] to [Cricket]. So far sounds easy right? Read below...
Please Review the following of my step by step :
ESN IS LISTED AS CLEAR ON SWAPPA, please note that means this device "should" not have issues (first thing I checked)
Under APN settings there is no way to +add APN as there is with every other phone I have touched. Is this because it was a lease?
I considered perhaps rooting the phone, throwing on a custom ROM, and therefore hopefully having that added. Looks like bootloader is locked.
Of course, I am 1 security patch too late, DIRTYSANTA will NOT work on my firmware.
Searched everywhere, seems as though you CAN NOT roll this back.
Next I looked at using Chimera Tool to roll back the firmware. I cannot seem to find a ZV5 firmware file.
Next I looked at using chimera for IMEI repair. I figured if I change the IMEI just long enough to modify the APN settings then revert it back, I would be golden. Chimera gave me an error of not having access to the ports. I tried to dial in the following codes to enable port check but none have access to the "hidden menu". 277634#*#, 3845#*997#, *#546368#*997#. I tried to factory reset the phone, no luck.
I was able to use ##DIAG# (##3424#) and enable DIAGNOSTIC mode, yet this seemed to do nothing about ports.
I was able to enter ##DEBUG (##33284#) but there is no ability to ediit in here. Although at one point in time I was at a screen asking for an SVC code, no idea how to get back there though.
Tried to do a "fix" on Chimera, which is the same as refurbish on LG Up (I need the phone in factory condition), but apparently this device does not support refurbish mode. So flashing software is not wiping anything.
I cant seem to boot it into recovery, for god knows why.
QUESTIONS I HAVE
How do I completely wipe the phone of all user data?
How do I open these ports since the codes provided bring up no menu?
Since sprint is the only one recognizing the bad ESN, is this device able to even swap carriers?
What reason would APN not have an ability to edit or modify?
What additional tactics can I use to get my goal accomplished?
Hopefully we can brainstorm together
Please refer to this thread, it should work and do what you need to withthat apk. I belive its under IOT menu then under lte and put it in lab mode and turn on all the bands plus adding APN .. Im not to sure but ask the OP im sure he is way more helpful... asfar as adding the apn without this you need root to be able to do this and for nonroot i believe you must use ADb commands to tgecdevice and add them from there. there is threads oithere....
https://forum.xda-developers.com/v20/help/lg-v20-cdma-to-lte-gsm-switch-via-t3602409
if the esn is now listed as unpaid, or lost /stolen cricket will not be able to add the esn to their system either. its a nation wide list that blacklist's the device.
Unfortunately changing the apns etc wont fix this.
ZV6 currently does not have a way to be rolled back, so there is 0 root/custom options.
APNS have been blocked by sprint for some time now and using some root methods they can be unlocked, in your case you wont be able to access them due to being unable to root.
Tools like CDMA WORKSHOP, QPST, QXDMA, etc may be able to write the apns and such you would need, if you could get the msl for the device, but if it is no longer active, and the device has a "bad esn" then you wont be getting that from the carrier. I dont believe youll be able to access the nv items etc without it and probably not going to be easy to locate the msl.
##diag# is how youll talk to the device on cdma workshop etc, youll need to go to your installed devices and change its com port to a port thats free and remember the port as the tools need you to select that port, but again they wont work for you without the msl anyways.
so in a nutshell, it looks like your best option is to sell the phone as parts only, or if recently purchased on swappa and it was listed good esn and its not then file a report at-least to make swappa aware.
Team DevDigitel said:
if the esn is now listed as unpaid, or lost /stolen cricket will not be able to add the esn to their system either. its a nation wide list that blacklist's the device.
Unfortunately changing the apns etc wont fix this.
ZV6 currently does not have a way to be rolled back, so there is 0 root/custom options.
APNS have been blocked by sprint for some time now and using some root methods they can be unlocked, in your case you wont be able to access them due to being unable to root.
Tools like CDMA WORKSHOP, QPST, QXDMA, etc may be able to write the apns and such you would need, if you could get the msl for the device, but if it is no longer active, and the device has a "bad esn" then you wont be getting that from the carrier. I dont believe youll be able to access the nv items etc without it and probably not going to be easy to locate the msl.
##diag# is how youll talk to the device on cdma workshop etc, youll need to go to your installed devices and change its com port to a port thats free and remember the port as the tools need you to select that port, but again they wont work for you without the msl anyways.
so in a nutshell, it looks like your best option is to sell the phone as parts only, or if recently purchased on swappa and it was listed good esn and its not then file a report at-least to make swappa aware.
Click to expand...
Click to collapse
Is the SPC the same as the MSL
williamschromebook said:
Is the SPC the same as the MSL
Click to expand...
Click to collapse
Yes
What if I have the SPC?
Sent from my HTC 0PJA2 using XDA Labs
Hello, everyone! I was hoping maybe you could give me your opinion on the following issue:
About a year ago I purchased a Moto X Play XT1562 in Europe with dual sim support (Asian ROM). I knew beforehand that I'd probably have limited LTE coverage in my country (Argentina), since the bands used by carriers here are B4 and B28, and XT1562 only supports B28 (which is used mostly for coverage in suburbs and rural areas). Band 4 is the main band used in Argentina for LTE coverage in cities and XT1563 is the model that supports it.
For quite some time I've had the theory that most phones should support more bands than they show, and that the differences between various models of the same phone are there to introduce region restrictions, which in turns means that some LTE bands are disabled and that it should be possible to somehow enable them by tweaking the software. For what I've read, there seems to be some support for my theory: there's a thread in this very same forum which claims that it should be possible to unlock all LTE bands in devices with Qualcomm processors by rooting the phone, installing a custom ROM and kernel and changing a few values.
LINK: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
Now, I'd really want that to be the last thing I try. I've rooted my phone before and I even unrooted it by flashing stock ROM, so I know my way around, but flashing a custom ROM and kernel are things I'd rather not do right now.
So, that brings me to my second theory: since XT1562 and XT1563 are basically the same device, their hardware specifications are the same and only differ in the LTE bands they support... and since LTE bands seem to be software-restricted...
1) Could it be possible to unlock Band 4 by flashing XT1563 stock ROM to my XT1562 Moto X Play?
2) Has anyone tried to do that (even by mistake) without bricking the device?
3) If there's no option but to flash a custom ROM and kernel, does anyone know for sure if LTE bands in Moto X Play are software restricted? Or is there a hardware limitation?
Probably my secornd theory won't work because I don't think the solution would so simple, and there would be threads about it... but I guess I don't lose anything by asking
Thank you!! =)
Just realized this thread shouldn't go in General. Could someone please move it to Q&A? Thanks!
The frequency bands that your phone supports is region specific (as you guessed) and has legal implications. And just like your device IMEI, these values are found in the non-volatile memory of your phone. The values are basically on partitions that are much secure and not so easily editable (like by fastboot or recovery). But nevertheless, the values are "software" only, and so it must be possible to edit the values anyway (just like it is possible to edit the IMEI), one way of doing so is using Qualcomm software as in the link you had posted.
But this varies from device to device, vendor to vendor, so your second theory could actually work on our phones (really don't think so though).
While it might be possible to run ROMs for XT1563 on XT1562, the baseband/ modem for XT1563 would not work on XT1562; it would probably make your device show "unknown" for IMEI, and so you would get no SIM network. Flashing back the modem for XT1562 would probably fix it.
You could always try and find out...
You would need the NON-HLOS.bin and fsg.mbn files from the XT1563 stock image to try, and the same files from the XT1562 stock to revert back.
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
There's chance that you would be stuck with an "unknown" IMEI and then you would have to manually edit volatile memory values after all. This all is just theory, someone who has tried or someone who has more knowledge will be able to help you better.
DragonClawsAreSharp said:
The frequency bands that your phone supports is region specific (as you guessed) and has legal implications. And just like your device IMEI, these values are found in the non-volatile memory of your phone. The values are basically on partitions that are much secure and not so easily editable (like by fastboot or recovery). But nevertheless, the values are "software" only, and so it must be possible to edit the values anyway (just like it is possible to edit the IMEI), one way of doing so is using Qualcomm software as in the link you had posted.
But this varies from device to device, vendor to vendor, so your second theory could actually work on our phones (really don't think so though).
While it might be possible to run ROMs for XT1563 on XT1562, the baseband/ modem for XT1563 would not work on XT1562; it would probably make your device show "unknown" for IMEI, and so you would get no SIM network. Flashing back the modem for XT1562 would probably fix it.
You could always try and find out...
You would need the NON-HLOS.bin and fsg.mbn files from the XT1563 stock image to try, and the same files from the XT1562 stock to revert back.
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
There's chance that you would be stuck with an "unknown" IMEI and then you would have to manually edit volatile memory values after all. This all is just theory, someone who has tried or someone who has more knowledge will be able to help you better.
Click to expand...
Click to collapse
Thank you for your kind reply =)
So, if I understood correctly, there's no need to flash the full XT1563 stock image. I'd just have to flash those two files from XT1563 stock rom, and then if it doesn't work then I'd just flash the XT1562 files again, which I already have. Seems worth to try and with low risk of bricking my phone.
Now, if that doesn't work, then my only option would be to use the other method. I don't want to try that one yet because I don't have everything figured out: I'm stuck in step 6, "Open the USB settings screen on your phone." I haven't yet found the correct code to input in the phone's dial screen to edit USB settings. I think in Android 6 the USB options have all been moved to developer mode, but I'm not 100% sure yet.
floydian86 said:
Thank you for your kind reply =)
So, if I understood correctly, there's no need to flash the full XT1563 stock image. I'd just have to flash those two files from XT1563 stock rom, and then if it doesn't work then I'd just flash the XT1562 files again, which I already have. Seems worth to try and with low risk of bricking my phone.
Now, if that doesn't work, then my only option would be to use the other method. I don't want to try that one yet because I don't have everything figured out: I'm stuck in step 6, "Open the USB settings screen on your phone." I haven't yet found the correct code to input in the phone's dial screen to edit USB settings. I think in Android 6 the USB options have all been moved to developer mode, but I'm not 100% sure yet.
Click to expand...
Click to collapse
At step 6, you are basically trying to connect the phone to your PC in a vulnerable mode (Modem + Diag mode) so you could access the NV. On Moto phones this is not really possible by dialing a service code I think.
Did you try to boot your phone in BP tools (or QCOM?) mode from fastboot? Then connect to PC and it should be connected in diag mode (check in Device Manager to confirm). You might need some specific drivers, see last thread, or may be Google.
There is a lot of discussion about this on the internet (for other devices, mostly). Mostly because people with locked devices that work only on specific carriers use a similar edit of values in NV of the phone to get out unlocked.
I think you should Google and try out some of the things people have been suggesting.
Read here, post number 21, for example (the entire thread is pretty informative): https://forum.xda-developers.com/moto-x/moto-x-qa/unlock-lte-bands-moto-x-t2933475/
And here (for Moto X Play),
http://forum.xda-developers.com/moto-x-play/help/trouble-writing-nv-settings-moto-x-play-t3368261
Edit: Most of these NV and QPST threads do seem to repeatedly point out that writing on the NV is extremely risky.
DragonClawsAreSharp said:
At step 6, you are basically trying to connect the phone to your PC in a vulnerable mode (Modem + Diag mode) so you could access the NV. On Moto phones this is not really possible by dialing a service code I think.
Did you try to boot your phone in BP tools (or QCOM?) mode from fastboot? Then connect to PC and it should be connected in diag mode (check in Device Manager to confirm). You might need some specific drivers, see last thread, or may be Google.
There is a lot of discussion about this on the internet (for other devices, mostly). Mostly because people with locked devices that work only on specific carriers use a similar edit of values in NV of the phone to get out unlocked.
I think you should Google and try out some of the things people have been suggesting.
Read here, post number 21, for example (the entire thread is pretty informative): https://forum.xda-developers.com/moto-x/moto-x-qa/unlock-lte-bands-moto-x-t2933475/
And here (for Moto X Play),
http://forum.xda-developers.com/moto-x-play/help/trouble-writing-nv-settings-moto-x-play-t3368261
Edit: Most of these NV and QPST threads do seem to repeatedly point out that writing on the NV is extremely risky.
Click to expand...
Click to collapse
Thanks again!
So, I flashed the XT1563 modem files. It took me a while because when I unrooted my phone, I also locked the bootloader (I honestly don't know why I did it), so I had to unlock it again and of course make a back-up.
While at first it seemed that I'd be stuck with "unknown" IMEI just as you said, after a minute or so both sim cards started working. I still don't know if it worked, though, because I haven't yet seen the 4G sign on my phone, but I did notice a change: after flashing the files I started getting the H+ sign (H was the best I'd get before, both here and in Europe, even after flashing an XT1562 stock image). So, it wasn't a complete waste of time
It could be that LTE reception is just bad where I live, but I doubt it because other phones have 4G connection here. I'll see what happens tomorrow in another place, but but most likely I'll have to try with a custom image and kernel, so I'll take a look at the links you have provided.
EDIT: in Europe the best I'd get was 4G, of course. What I wanted to point out was that H was the best 3G connection I'd get anywhere.
floydian86 said:
Thanks again!
So, I flashed the XT1563 modem files. It took me a while because when I unrooted my phone, I also locked the bootloader (I honestly don't know why I did it), so I had to unlock it again and of course make a back-up.
While at first it seemed that I'd be stuck with "unknown" IMEI just as you said, after a minute or so both sim cards started working. I still don't know if it worked, though, because I haven't yet seen the 4G sign on my phone, but I did notice a change: after flashing the files I started getting the H+ sign (H was the best I'd get before, both here and in Europe, even after flashing an XT1562 stock image). So, it wasn't a complete waste of time
It could be that LTE reception is just bad where I live, but I doubt it because other phones have 4G connection here. I'll see what happens tomorrow in another place, but but most likely I'll have to try with a custom image and kernel, so I'll take a look at the links you have provided.
EDIT: in Europe the best I'd get was 4G, of course. What I wanted to point out was that H was the best 3G connection I'd get anywhere.
Click to expand...
Click to collapse
Dial *#*#4636#*#* (4636 stands for INFO) on dialer and you can select LTE only from network modes to force 4G detection. In this mode, it will pick 4G network (4G only, even if its weak), whenever it's available.
To really check supported bands by your phone, I think you would need to use the QPST app, it was possible earlier by *#*#SERVICE#*#*, the service menu. Maybe somewhere in *#*#2486#*#*?
Edit: I can think of two scenarios now. The sad one... while you flashed the XT1563 modem (that supports LTE Band 4, 8, etc. (values on the lower row, check attached), your NV still says it supports 19 and 8 and so on (not 4). This could mean you are now able to use only 8 (and the other common bands supported by the two variants) and neither of 19 or 4.
Or, Moto X Play decides which bands it supports depending only on the modem files, and you actually managed to get working LTE band 4 on your XT1562. .
DragonClawsAreSharp said:
Dial *#*#4636#*#* (4636 stands for INFO) on dialer and you can select LTE only from network modes to force 4G detection. In this mode, it will pick 4G network (4G only, even if its weak), whenever it's available.
To really check supported bands by your phone, I think you would need to use the QPST app, it was possible earlier by *#*#SERVICE#*#*, the service menu. Maybe somewhere in *#*#2486#*#*?
Edit: I can think of two scenarios now. The sad one... while you flashed the XT1563 modem (that supports LTE Band 4, 8, etc. (values on the lower row, check attached), your NV still says it supports 19 and 8 and so on (not 4). This could mean you are now able to use only 8 (and the other common bands supported by the two variants) and neither of 19 or 4.
Or, Moto X Play decides which bands it supports depending only on the modem files, and you actually managed to get working LTE band 4 on your XT1562. .
Click to expand...
Click to collapse
I did try to select LTE only, but it didn't work.
I also tried using service menu, but I didn't find any of the tests to be useful to check which LTE bands are supported.
About the scenarios you propose, I also thought maybe all I achieved was to restrict LTE bands to the ones supported by both models :S. At work my phone picks band 28, but both models support it, so there's no way to check it by discarding...
There's a third possibility, though, which is that both models' modems are exactly the same and bands are only limited by NV.
After work I'll see which custom roms and kernels are there for X Play and start studying the process to edit NV. Still it might not be possible to do so because the post claims that rom and kernels must be compiled from source code, so the ones made from stock won't work... That means I depend on there someone making a rom and kernels that meet those requirements.
In the second link, the person says he can't save the changes he makes to the NV, which is what is supposed to happen if you're using stock rom and kernel, according the link I've shared.
So, I ended up editing the NV in order to remove Band 4 restriction. It took me a while because I had to figure out how to bypass all the obstacles I found on the way but, once everything was set up, the process was quite simple.
I had to boot my phone in BP Tools mode and configure the QC Diag port driver correctly. Also, I had to use a newer version of QPST because the one I donwloaded first didn't work.
The tutorial claims that your phone must be rooted and that you need a custom rom and kernel in order to avoid the "anti-tamper" mechanisms in newer Qualcomm devices. My first approach was not to do such things (i.e.: unrooted phone with stock rom and kernel).
I edited the NV values as suggested in order to enable Band 4. The good news are that the custom values that I added didn't revert back to the original ones after I rebooted and also that I didn't brick my phone and it's working properly
Right after I rebooted my phone, it picked 4G signal, but after just a few seconds it switched to H. I forced my device to LTE only, and it connected to 4G, but then again it completely lost signal. My phone does pick LTE Band 28 sometimes, but not at my place, so I thought that I must have been picking up Band 4 (I tried to leave it set to LTE only, but it picked no signal at all).
Also, when I'm at work, it sometimes picks Band 28, but signal must be very weak because it never lasts more than a few minutes, after which goes back to H.
So far I'm not sure if the mod worked because I can't find a way to see which bands my phone currently supports or which LTE band it's connected to. I tried an app called LTE Discovery, but it labels it as "unknown band" (I suspect that my phone needs to be rooted in order for that feature to work).
Right now, I'm thinking of three possible things that could have happened:
1) The mod worked and LTE signal is just very poor by my place.
2) It worked and it connected to Band 4 for a few seconds, but then the anti-tamper mechanism detected that situation and software-blocked it (without reverting NV changes I made). In this case, I'll have to flash a custom kernel and see what happens.
3) There's a hardware limitation after all, in which case there's nothing I can do (I don't think this is the case)
Right now I'm at work and my phone has been picking up 4G for over an hour already. Since it usually only lasts a few minutes (connected to Band 28), then I guess there are reasons to be optimistic that it worked after all and it is currently using Band 4.
If I succeed, I'll open a new thread with a tutorial for Moto X Play.
I'll keep updating my progress on the issue in order to leave a record of everything I tried. Also, it could be helpful to other people who are trying to do the same thing or maybe someone who has done this before will see this and point me in the right direction . Again, if I succeed I'll write a more detailed guide.
I can confirm that what I did so far didn't work, I've modified the necessary NV values and even flashed Squid kernel, but still no success: I'm definitely not picking Band 4 anywhere, only Band 28.
While flashing the custom kernel, I also wanted to use the opportunity to root my phone, but for some reason I soft-bricked it in the process, so I had to flash XT1562 stock rom again (with XT1563 modem). This reverted the NV values to the default ones, so I had to customize them again.
The user fffft says that custom rom and kernel are needed in order to avoid the anti-tamper code, but also that it is most likely in the kernel. I could try another kernel, maybe Phoenix, but if that doesn't work either, then we can confirm that the anti-tamper code is actually in stock rom.
This leaves three final possibilities to succeed in unlocking LTE Band 4:
_Flashing another custom kernel
_Flashing a custom rom
_Flashing the whole XT1563 stock rom, as I proposed at first, and see what happens. If this works, this should both set the NV values to enable XT1563 default LTE bands (which includes Band 4) and also set a different anti-tamper code, which should not bother. Worst case scenario I'll soft-brick my phone again and I'll have to flash XT1562 rom.
Daily update:
First thing I tried yesterday was what I wanted to do from the beginning, which is to flash the whole XT1563 rom on XT1562. Kids, don't try that at home! At first it looks like it's working and that the device is going to boot normally, but then it gets stuck in the apps configuration screen or after the boot animation.
The only thing left now was to try with a custom rom, so I flashed Cyanogenmod 13 and Squid kernel. This, however, brought other issues: for some reason, when booting the phone in BP tools mode or Qcom, the device's QC Diag Port isn't detected by PC. It seems to be something implied to happen with custom roms: https://forum.xda-developers.com/moto-g-2014/help/diagnostic-mode-moto-g-flashing-cm-12-1-t3254756
Has this happened to any of you? Is there a way around it?
I also found this: http://www.howardforums.com/showthread.php/1692461-HTC-Evo-and-Cyanogenmod-Diagnostic-mode
There they mention that changes should be made on stock image and just then install the custom rom. That would mean to flash stock image, then change the required NV values, and finally install the custom rom.
That makes some sense, but unless I can find a way to enable Diag mode on Cyanogenmod, this will be the last thing I try and if it doesn't work then I'll give up
floydian86 said:
Daily update:
First thing I tried yesterday was what I wanted to do from the beginning, which is to flash the whole XT1563 rom on XT1562. Kids, don't try that at home! At first it looks like it's working and that the device is going to boot normally, but then it gets stuck in the apps configuration screen or after the boot animation.
The only thing left now was to try with a custom rom, so I flashed Cyanogenmod 13 and Squid kernel. This, however, brought other issues: for some reason, when booting the phone in BP tools mode or Qcom, the device's QC Diag Port isn't detected by PC. It seems to be something implied to happen with custom roms: https://forum.xda-developers.com/moto-g-2014/help/diagnostic-mode-moto-g-flashing-cm-12-1-t3254756
Has this happened to any of you? Is there a way around it?
I also found this: http://www.howardforums.com/showthread.php/1692461-HTC-Evo-and-Cyanogenmod-Diagnostic-mode
There they mention that changes should be made on stock image and just then install the custom rom. That would mean to flash stock image, then change the required NV values, and finally install the custom rom.
That makes some sense, but unless I can find a way to enable Diag mode on Cyanogenmod, this will be the last thing I try and if it doesn't work then I'll give up
Click to expand...
Click to collapse
On step 14 of the first post you shared, it says you could check the active bands on your phone. Do you see something useful there?
AFAIK, once you successfully edit the NV Memory, the changes are there to stay, even if you reflash stock ROM.
I can confirm one thing. BP tools + stock ROM gives you diag mode, but that doesn't work on AOSP based ROMs. And it seems not even on CM based ROMs. However it should be easier to do it on custom ROMs, try enabling and looking into Developer Options. Or may be some service code in phone app?
https://forum.xda-developers.com/showthread.php?t=1626638
On my phone running an AOSP based ROM, I have files that indicate a possible diag mode at /system/sys/class/Android_USB. Need to dig in more.
If you are not able to get your phone connect in diag mode successfully, the route I would now suggest is this:
1. Flash stock ROM (for XT1562)
2. Flash custom kernel
3. Root the stock ROM (use Magisk)
4. Edit NV Values, make sure it is successfully done (step 14 on the first post you shared?).
5. Check if its working.
6. Format /system, /data, and cache partitions, and flash ROM. So your baseband files (and ofc NV memory) is not affected.
7. Try again.
DragonClawsAreSharp said:
On step 14 of the first post you shared, it says you could check the active bands on your phone. Do you see something useful there?
AFAIK, once you successfully edit the NV Memory, the changes are there to stay, even if you reflash stock ROM.
I can confirm one thing. BP tools + stock ROM gives you diag mode, but that doesn't work on AOSP based ROMs. And it seems not even on CM based ROMs. However it should be easier to do it on custom ROMs, try enabling and looking into Developer Options. Or may be some service code in phone app?
https://forum.xda-developers.com/showthread.php?t=1626638
On my phone running an AOSP based ROM, I have files that indicate a possible diag mode at /system/sys/class/Android_USB. Need to dig in more.
If you are not able to get your phone connect in diag mode successfully, the route I would now suggest is this:
1. Flash stock ROM (for XT1562)
2. Flash custom kernel
3. Root the stock ROM (use Magisk)
4. Edit NV Values, make sure it is successfully done (step 14 on the first post you shared?).
5. Check if its working.
6. Format /system, /data, and cache partitions, and flash ROM. So your baseband files (and ofc NV memory) is not affected.
7. Try again.
Click to expand...
Click to collapse
Thanks!
When I edited the NV, the changes were saved (I closed QPST and QXDM, then rebooted my phone and checked the values). However, when I flashed stock rom, the values reverted to the original ones. I also thought that shouldn't happen, but nevertheless it did :S
About getting Diag mode on custom roms, I took a quick look at developer options but I didn't see anything useful. I read a few posts that claim it can be done using a terminal emulator, so there has to be a way around it.
The steps you mention are the ones I had in mind, except for rooting. Do you think it's really necessary? (phone will be rooted after flashing custom rom, anyway).
I'll try it tonight and see what happens =)
EDIT 1: If I understood correctly, step 14 of the thread I've shared is only for 3G bands, so I don't need to change anything there. LTE bands NV's can only be seen and modified using QXDM and that's where I checked if the changes were saved. However, I have seen that there are a few holes in the tutorial, some of which I had to figure out myself. Maybe there's one extra step I'm missing on QPST? Step 24 seems to indicate otherwise.
EDIT 2: I've found this thread. It's about a Lenovo phone, but chances are they are the same: http://www.teamsuperluminal.org/forums/topic/open-diag-port-in-cm-12-1-for-qpst/
This is what it says: "To open the diag port, connect the phone to a PC and use ADB:
adb shell
su
setprop sys.usb.config diag,adb"
Changing the NV and then flashing custom ROM didn't work (I deleted system, data and cache before but still didn't work).
I tried enabling diag mode using ADB with the code I found but it didn't work. No diag port gets enabled.
I'm ready to give up. It seems it can't be done, at least not on X Play
Unless maybe someone know how to use diag mode on Moto X play running Cyanogenmod?
Okay, so probably looks fishy, so to get one thing out of the way, if anyone wants to blame around how the device must've been stolen, I can make a video proof showing a purchase on eBay Stores close all the time, so what? And there is nothing bad about trying to make use of something that has no use anymore, so if you are planning to give me a moral lecture how I'm doing something evil by saving a good piece of valuable hardware from going to trash, you are welcome to turn your head away.
Now that we've eliminated the spammers, let's try to do something constructive
So this is the current state of the unit:
SW ver. V10f-OPT1-HQ.
Baseband ver. MPSS.TH.2.0.1.c3.1-00014-M8996FAAAANAZM-1.86009.21
Build num. NRD90U
Kernel ver. 3.18.31
What I'm trying to achieve is to make this unit have GSM network in EU, hopefully without touching the hardware, so that's the first thing I have to test. I read somewhere that it might be possible to achieve that by writing QCN and EFS with Octoplus box.
If someone can do a backup of their EFS (with Chimera possibly), I'd like to "borrow" it for a ride, just to see if that is true.
The other problem is that I cannot get my BL unlocked because I don't have an IMEI, so I have to hope for someone to make a workaround for this.
Probably could be achieved by QFIL flash, but that's never easy.
Since I don't know much about LG's FW files and how they work, I have to ask if it's possible to compile a "passable" KDZ containing unlocked bootloader or custom recovery with secure check modified so that I can get this thing opened?
Another thing which I have to report is that I found a totally legit way (at least on my FW ver.) to write/repair IMEI without root, just through service menu!
I don't know if other devices have this and if this is maybe not a new thing at all, but I find it pretty amazing!
If there is interest, I will provide some preview in comments, as well as APK if possible!
Right now I managed to write some generic IMEI.
It has a generator inside, it practically changes not only IMEI, but as well as MAC and some other stuff according to values which you set (I remember there is a region setting, so I selected EU_OPEN).
To make sure, I'm not trying to fake an IMEI and cheat my way through gaining network access and who knows what, but before I purchase the new EFS legally, I'd like to see if this HW is capable of running it.
So, another thing is that the network still isn't comming. I think the band can be set only on 1900 or something like that, but I think there might still be network limitation due to SW, no matter I flashed it with LG_UP and modem file got flashed normally as any other file.
Cell network is grayed out in settings, when I put the SIM in, it seems to detect it at first, but later in most of the SIM related settings which I tried to mess with in service menu it says that SIM is not detected. Generally when I remove SIM/SD card tray it detects it and asks for a SIM.
If there is nobody willing to borrow an EFS, I hope there is someone who really knows meanings of all these stuff in this service menu, who can guide me through a little bit.
I think there's chance that some settings there disable networking, and if I could copy and paste them from another device, it might wake up. It doesn't have reception at all, not even 112 and 911 at the moment, it detects no networks when I jump to manual network selection option (because I cannot access through settings), and that discourages me a little.
If there is any genius out there, get summoned please!
So you stole it?
basicreece said:
So you stole it?
Click to expand...
Click to collapse
Yeah dude, can't believe these guys bought it :laugh::laugh::laugh:
Jovan Riparazioni said:
Yeah dude, can't believe these guys bought it :laugh::laugh::laugh:
Click to expand...
Click to collapse
Now let me steal your EFS
How does the service menu look on your G6? Did you check it out?
Jovan Riparazioni said:
Now let me steal your EFS
How does the service menu look on your G6? Did you check it out?
Click to expand...
Click to collapse
I have a h870V and wanted to know if it is possible to flash an H870 rom
Wellington cerqueira said:
I have a h870V and wanted to know if it is possible to flash an H870 rom
Click to expand...
Click to collapse
I didn't find a way to flash any other firmware. I think it's impossible to get network. I disassembled my own and compared the motherboard with the one that I found on Google images. It seems that a modem chip is absolutely missing from the device. That explains no network, even after generating EFS (at least in my case).
I don't know what is your level of knowledge, but for example, I've been trying to root Korean LG V10, and haven't succeed, although I've seen some websites selling custom root .tot firmware files, but I don't know is it possible to make or find those files for newer devices.
lg g6 demo flashed
i try to flash demo retail version of g6 with lg up, i put firmware h87010d and after sucessfull instal it goes wrong and phone start to go restarting.because there is no possebility to turn it off i couldnt do anything so i put the phone on table and leave it.after the night battery was off at 0% and i put it on charger and try to start recovery mode.after phone goes on there was a warning that recovery mode is desibled by admin.after that i start to power on the phone and it starts normaly with new software without retail mode on it.
mikkica said:
i try to flash demo retail version of g6 with lg up, i put firmware h87010d and after sucessfull instal it goes wrong and phone start to go restarting.because there is no possebility to turn it off i couldnt do anything so i put the phone on table and leave it.after the night battery was off at 0% and i put it on charger and try to start recovery mode.after phone goes on there was a warning that recovery mode is desibled by admin.after that i start to power on the phone and it starts normaly with new software without retail mode on it.
Click to expand...
Click to collapse
Hi! Is your sim card slot working? Maybe you can send some links for your solution? In my case is LG up saying that h870v is an unknown device. I think that i have the wrong LGUP_common.dll if I understood correctly. And couldn't find the right one.
And the System is using ca 20 Gb. Is it possible to unlock the bootloader without IMEI. Somehow to get it rooted?