No signal after CM13 flash - G2 Q&A, Help & Troubleshooting

My vs980 has no signal and i cannot change the network mode from GLOBAL in settings. I was previously on an older unofficial cm13 with working tmobile service, then i stopped using the phone and came back to it a while later and flashed the latest crDroid nightly (12/12/15) and never looked at the phone again until now, when i realized there is no signal.
I have tried different inactive Verizon and t-mobile sims, yet the phone still says no service emergency calls only, and network is stuck on global. I have tried a modem and efs restore through twrp, and even flashing back to stock to no avail. The phone does have an imei still, which is a good sign however i am all out of ideas for fixing this.

Try flashing stock KDZ. If it won't help, then very well could be hardware failure.

Try flashin stock kdz (maybe your imei has been deleted) ( and sorry for my english?)

Related

[Q] No Service Need Help

For the life of me I can't figure out what I did wrong. I purchased an Oppo Find 5 from China, rooted and flashed some custom ROMS. Somehow something screwed up my cellular connection. I get no service at all. I've flashed different roms, modems, factory reset ..you name it without success. The SIM card is detected but can't make calls or get data. Any ideas?
Edit: Problem solved: flashed a modem for x909t and now have service. I've been flashing x909 modem and that was the reason for connection failure.

I9505 works only on 2G, no 3G, no 4G

Hi all.
I'm asking for your help in solving my S4 (I9505 jfltexx) problem: it's working only in 2G mode, no 3G, no 4G.
This suddenly started 15 days after the last flash, when I installed the Imperium ROM (ver 10.1) with the Philz Recovery 6.59.
So, I begun searching, googling, following procedures, flashing modems, roms, but I can't solve my problem.
My IMEI is OK, the SIM works in another phone, with a different operator SIM my S4 behaves the same, so is definitely a phone issue.
The *#0011# Service Mode shows the LTE and UMTS frequencies and cells IDs and that, I think, means that the hardware is working and that the phone has a software issue.
Tried Imperium 11.0, LolliROM 6.0, Resurrection 5.5.8, Cyanogen 12.1, brand and no brand Stock (all Lollipop ROMs), different modems.
I didn't downgrade because throughout my readings (a lot) about this issue, no one solved the problem this way.
Tryed this procedure
http://forum.xda-developers.com/galaxy-s4/help/i9505-doesnt-3g-t2998527
with no success.
I forced the phone in WCDMA mode and, using the QPST and QXDM, I observed the event log.
This IMHO is the interesting part:
EVENT_WCDMA_L1_STATE----->L1M_FACH
EVENT_RRC_MESSAGE_SENT--->Logical Chan: UL CCCH Signal Msg Type: RRC_CONNECTION_REQUEST_MSG
EVENT_WCDMA_RRC_STATE---->Previous state: Disconnected, New state: Connecting
EVENT_WCDMA_PRACH-------->RF Tx Power: 24, Number of preambles: 10, AICH Status: No ACK
[this last event repeated several times until]
EVENT_WCDMA_L1_STATE----->L1M_IDLE
EVENT_WCDMA_RRC_STATE---->Previous state: Connecting, New state: Disconnected
A lot of people, considering just this forum, complains about this problem but I was not able to found a working solution.
I hope someone can help me because I don't have any further ideas or clues.
Anyway, thanks in advance.
New attemps made:
downgrade to 4.4.2, flash of various Kitkat modems, new upgrade to Lollipop, deep clean (here in italian http://bit.ly/1MRu7lk).
When I tried to restore an NVM backup, previously made by QPST, the procedure failed at 5% due to "Received an invalid command from the phone".
In this way, I completely lost the baseband functionality and the IMEI, without being able to restore them even with an EFS backup, made by Philz recovery.
I re-tried this procedure http://forum.xda-developers.com/galaxy-s4/help/i9505-doesnt-3g-t2998527 and the SRS tool. The only way to have back IMEI and baseband has been to go in a shop where the guy used a Z3X box but, again, without restoring 3G-4G.
I definitely ran out of options now.
same error here!
any ideia?
phranqo said:
New attemps made:
downgrade to 4.4.2, flash of various Kitkat modems, new upgrade to Lollipop, deep clean (here in italian http://bit.ly/1MRu7lk).
When I tried to restore an NVM backup, previously made by QPST, the procedure failed at 5% due to "Received an invalid command from the phone".
In this way, I completely lost the baseband functionality and the IMEI, without being able to restore them even with an EFS backup, made by Philz recovery.
I re-tried this procedure http://forum.xda-developers.com/galaxy-s4/help/i9505-doesnt-3g-t2998527 and the SRS tool. The only way to have back IMEI and baseband has been to go in a shop where the guy used a Z3X box but, again, without restoring 3G-4G.
I definitely ran out of options now.
Click to expand...
Click to collapse
phranqo said:
Hi all.
I'm asking for your help in solving my S4 (I9505 jfltexx) problem: it's working only in 2G mode, no 3G, no 4G.
This suddenly started 15 days after the last flash, when I installed the Imperium ROM (ver 10.1) with the Philz Recovery 6.59.
So, I begun searching, googling, following procedures, flashing modems, roms, but I can't solve my problem.
My IMEI is OK, the SIM works in another phone, with a different operator SIM my S4 behaves the same, so is definitely a phone issue.
The *#0011# Service Mode shows the LTE and UMTS frequencies and cells IDs and that, I think, means that the hardware is working and that the phone has a software issue.
Tried Imperium 11.0, LolliROM 6.0, Resurrection 5.5.8, Cyanogen 12.1, brand and no brand Stock (all Lollipop ROMs), different modems.
I didn't downgrade because throughout my readings (a lot) about this issue, no one solved the problem this way.
Tryed this procedure
http://forum.xda-developers.com/galaxy-s4/help/i9505-doesnt-3g-t2998527
with no success.
I forced the phone in WCDMA mode and, using the QPST and QXDM, I observed the event log.
This IMHO is the interesting part:
EVENT_WCDMA_L1_STATE----->L1M_FACH
EVENT_RRC_MESSAGE_SENT--->Logical Chan: UL CCCH Signal Msg Type: RRC_CONNECTION_REQUEST_MSG
EVENT_WCDMA_RRC_STATE---->Previous state: Disconnected, New state: Connecting
EVENT_WCDMA_PRACH-------->RF Tx Power: 24, Number of preambles: 10, AICH Status: No ACK
[this last event repeated several times until]
EVENT_WCDMA_L1_STATE----->L1M_IDLE
EVENT_WCDMA_RRC_STATE---->Previous state: Connecting, New state: Disconnected
A lot of people, considering just this forum, complains about this problem but I was not able to found a working solution.
I hope someone can help me because I don't have any further ideas or clues.
Anyway, thanks in advance.
Click to expand...
Click to collapse
Hi, I'm having the same problem with my i9515. But, I think that my case is that this phone was bought in Poland and I live in Brasil, so, maybe is not the same frequencies, because I've tested a lot of things and nothing made my 3g or 4g works.
=/
Sorry, I gave up: as said, even with a Z3X box it was impossible to repair the phone and I stopped to look for answers.
=(
I have the same problem here. Everything works, wifi, network, but the Mobile Data is on gsm speeds. I think i bought it broken like this (2nd hand) as i tried various rom and kernel combinations with no luck.
The same happened to me, after updating the baseband. it's not a hardware problem

[Help Pls] LG V20 VS995 after Root No GSM Signal - Service Disabled - No Service

Hello All,
For the past 3 weeks, I was reading threads and trying to solve the issue, but no luck. So please help me.
My problem/story started when I have ordered an LG V20 US996 from china, everything was working. I wanted to root it so I have tried this https://forum.xda-developers.com/v20/how-to/v20-h915us996-dirtyelf-bootloader-t3568013 and it worked, but I have lost the GSM Signal
I have tried to fix the issue by going to *#*#4636#*#* -> Phone information, but the US996 rom can’t access this menu. So I have tied to flash LineageOS for US996 it has started but the touch didn’t work so I have used an OTG Mouse, I went to *#*#4636#*#* but no result
After a long search on the internet I have come on a thread that suggest to see the original model of the phone (because as they said in china they may change the phone version), so I have checked the motherboard and I have found out that my phone is VS995.
But when I enter the LGUP or UPPERCUT it says that it is US996, I only can flash US996 KDZ ROM. However, after I went to ##PROGRAM996 I hit there reset (I don’t know exactly where) the phone restarted and now it shows in LGUP that it is VS995
So I have flashed using UPPERCUT VS99512A_06_1114_ARB00.kdz and no result still no GSM Signal then I have rooted the phone using https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
I have flashed back the original EFS, no result still no GSM Signal
So I have Installed LineageOS for VS995 in order to access *#*#4636#*#* (because I couldn’t access any hidden menu form the VS995 original dialer) after Installing LineageOS the touch screen didn’t work I have an OTG Mouse, I went to *#*#4636#*#* -> Phone information, I Turn on the Radio but the still no GSM Signal
I have tried flushing multiple kernels and ROMs but no luck
I even tired this https://forum.xda-developers.com/v20/how-to/manual-program-sprint-ls997-v20-t3557676 but no luck, I couldn’t contact Verizon for the MSID number because I live in Lebanon
P.S: I have an IMEI number
I am going crazy here
Please help me
i have also tried this https://forum.xda-developers.com/v2...-ls997-v20-t3557676/post71315675#post71315675
and didn't work
i have no signal problem too, after doing firmware update using wifi, now my VS995 won't register to GSM/LTE network and it says Sim Card is not from Verizon...
how to activate this phone? i'm not in USA as your problem i cannot activate the VS995 using Verizon services,..
what should we do? to activate manually without the Verizon simcards??
Mine was showing no signal until I made a call, then it worked. I'm in the US, though.
VS995
LineageOS 14.1
Verizon
Habe you tried changing to Global. I am in the UK and have a vs995 and i am getting the not a verizon sim (which you can ignore). My problem is that using my contract carrier (EE) i cannot access 4G only 3G GSM but if i use a different carrier sim (O2) 4G/LTE is working.
hey..
can anyone pls share the qcn for vs995..?

No signal on stock ROM and only 3g on custom Oreo roms

I decided to flash stock ROM again after having some camera issues on all Oreo ROMs. I have done this process many times and my PC is all set up to do a stock flash. This time after flashing stock rom for my UK g5 plus, I booted to no signal. After repeating the stock ROM flash a few times and, trying a few APN options and switching to 3g and back to 4g with nothing working, I realized there is a problem. After this, I tried going back to 8.1 pixel and Nitrogen, which did return my signal but, no 4g only 3g.
I'm a little confused as to what is going on here, no custom ROM flash can leave any effect after fastbooting stock to my knowledge. Any ideas?
How to
Credits @Castell93
Step by step:
1. Flash TWRP.
2. Flash Pixel Experience rom if we haven't flashed yet.
3. Turn on phone with flashed rom to obtain network signal
4. Here we will get the IMEI and only have 3g signal, so we need to restart the phone in bootloader mode and type in fastboot "fastboot erase modemst1" and "fastboot erase modemst2", these two command will give us IMEI and 4g signal.*
5. Turn on Pixel Experience again to obtain 4g(verify it pls), shutdown and enter Recovery mode (TWRP).
6. Do a backup of EFS and install stock rom.
7. Restore EFS backup and enjoy.
* NOTE: It's very important to turn on the phone once flashed Pixel Experience to obtain IMEI info and turn on again to obtain 4G.
This works to get 4g but volte no longer is working (used to be fine on nougat). I'm using TMobile usa
maqsur said:
This works to get 4g but volte no longer is working (used to be fine on nougat). I'm using TMobile usa
Click to expand...
Click to collapse
So, are you able to get back the 4G mobile data (4G LTE) at least?
Yes, I get LTE again, but not volte. Sad
Currently, all Oreo roms are causing this issue because they seem to update IMEI info and the modems. Once an Oreo rom has been flashed, there is no way to get voLTE back at the moment, however 4G can work again (with the method above).This issue will probably not be solved until the official Oreo rom is released by Motorola.
Here is the link for a forum about this https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808.
Hello, I know this thread is old. But I have a moto g5 xt1670 and it's been a week since I have lost 3g and 2g in my phone. I only have 4g. So I can't make nor receive calls. It is on stock Oreo 8.1. Going back to 7.0 stock didn't help. Neither Going to custom rom 9.0. don't know what else to do.
ajmdve said:
Hello, I know this thread is old. But I have a moto g5 xt1670 and it's been a week since I have lost 3g and 2g in my phone. I only have 4g. So I can't make nor receive calls. It is on stock Oreo 8.1. Going back to 7.0 stock didn't help. Neither Going to custom rom 9.0. don't know what else to do.
Click to expand...
Click to collapse
Trying using the QCOM option in the fastboot menu. Have been stuck on 3g since late 2017 and finally got it back by selecting that option which reboots me into the OS with working 4g regardless of what rom I flash. Don't know if it will work for you but try it and let me know.

No network access (Moto G5 Plus)

Hi everyone,
I've been having a problem since yesterday morning. Everything seemed to be fine with my phone before I flashed a custom rom. I was using at the moment MSM Xtended and I flashed the latest version of CrDroid. After flashing that other custom rom and booting, my phone had no network signal. All it reads on the status bar after that is just "No service". Of course, I removed the SIM card and reinserted it many times but that did nothing.
I've already tried flashing another rom (the latest AICP rom) and even going back to the one I was using at the beginning, but still nothing. I even tried reflashing the NON-HLOS.bin file and erasing modemst1 and modemst2, but it didn't do anything either. I also tried flashing this deodexed stock rom and booting. Interestingly, that kind of fixed the problem, since it recovered its network functionality. However, after reflashing an Oreo custom rom, it loses it again (actually, I've done that a few times today, but the last time I tried flashing the stock rom, for some reason it didn't fix it anymore). I don't know if in this case it's worth mentioning it, but I've tried checking my IMEI on both, custom roms and stock rom, and it's never been 0 at any moment.
TL;DR: My phone lost its network signal after flashing a new custom rom and I have no idea why. If anyone could somehow help me, I'd be really, really grateful.
I have had this happen so many times it is not crazy LOL. The best you can do is find a rom that it happens the least. For me it has been AOSP extended. Signal has been great. It is a bug that I dont think the devs even thought would happen with 8.1 roms. It will happen to everyone at some point if we stay on these 8.1 roms i guess until we get a workable 8.1 stock rom. There will be those who chime in saying it nevver happen to them but it will eventually.
Well, it's nice to know I'm not actually the only one then, I guess. But is there nothing I can do? Since I can't seem to get it fixed even by flashing the stock ROM anymore and flashing AOSP extended didn't seem to help at all either
I know brother there is no rhyme or reason it just happens. I am hoping when 8.1 stock comes out for us there will be a new batch of 8.1 custom roms without this problem. Right now i am on extended and havent had any signal problems for a few weeks so who knows.
Maximo22 said:
Well, it's nice to know I'm not actually the only one then, I guess. But is there nothing I can do? Since I can't seem to get it fixed even by flashing the stock ROM anymore and flashing AOSP extended didn't seem to help at all either
Click to expand...
Click to collapse
Okay. Luckily enough, Oreo stock ROM doesn't look like it's gonna take too much more to arrive... Or so I hope, at least. Thanks
I was using LinageOs and it was working great. Then I decided to install DolbyAtmos and for that I flashed Magisk . Suddenly i had no network but my sim cards were detected , IMEI was there but no network on either sim whatsoever. I tried reflashing the LinageOs and PixelExperience ROM but none worked. So I tried flashing(ADB) the stock firmware only to lose my IMEI . After reading this post I tried Debloated ROM and my network was back. I should have stopped at that point but I tried to return back to stock again and lost IMEI again and now I have tried Dbloated,LineageOs , PixelExperience , AOSP Extended , but none helped me getting back network . Now I am stuck with this phone with no network , I had a backupp of my system before I flashed Oreo ROMs (with EFS) so I can get IMEI back but no network. This phone was my daily driver and now I have no idea what to do.
svapre said:
I was using LinageOs and it was working great. Then I decided to install DolbyAtmos and for that I flashed Magisk . Suddenly i had no network but my sim cards were detected , IMEI was there but no network on either sim whatsoever. I tried reflashing the LinageOs and PixelExperience ROM but none worked. So I tried flashing(ADB) the stock firmware only to lose my IMEI . After reading this post I tried Debloated ROM and my network was back. I should have stopped at that point but I tried to return back to stock again and lost IMEI again and now I have tried Dbloated,LineageOs , PixelExperience , AOSP Extended , but none helped me getting back network . Now I am stuck with this phone with no network , I had a backupp of my system before I flashed Oreo ROMs (with EFS) so I can get IMEI back but no network. This phone was my daily driver and now I have no idea what to do.
Click to expand...
Click to collapse
Everything you said is exactly as if I had written it. I did all of that and now I'm exactly in the same position. No idea how to fix it yet. Still, if you managed to find a solution somehow, please write a reply on this thread again
Maximo22 said:
Everything you said is exactly as if I had written it. I did all of that and now I'm exactly in the same position. No idea how to fix it yet. Still, if you managed to find a solution somehow, please write a reply on this thread again
Click to expand...
Click to collapse
No success yet , but read on some posts that different baseband could be an issue.
Solution I've tried and worked 100 %
Hi bodies,
You can turn off your phone,
Go to fastboot menu by pressing and holding power button and volume down button in the same time.
Roll to "Restart Bootloader" with volume up/down and validate with power button.
Now select start and the network is back.
see you !:fingers-crossed:
Hello everyone I am facing signal problem with my moto5G plus device .it detect sim card but not getting signal . While searching manually it's say's error while searching network. When i checked in QCQM app for sim card test it's shows " PHONE ICCID Compare with SIM ICCID: ERR". Can anyone give me the solution .. I have tried to boot device in bp tools mode it worked for me only ones until next reboot after that nothing is happening even bp tools mode also ... Had done restore factory many times but same result with no signal
Hi, i did a clean flash and installed android 11 from android 8.1 on my Moto g5 plus(XT1686), after flashing rom with android 11 i am not getting and network coverage, it detect the sim card but no network, cant even search network manually shows as Not available. But after i recover and come back to 8.1 network works fine. Only after updating to any android 11 it dont work. I tried network reset and even Bootloader but nothing seems to work.
Does any1 knows any fix for this?
Does gapps can effect the Network?

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