Database Users

[Q] Not Reading Sim Card

Hey so i updated my LG G2 from 24A to 39A, but once I got to 39A my sim card could no longer be read. In the network settings tab it now says unknown and under Mobile network type it says disconnected. I tried bringing it back to stock 24A but it still did not work. I tried another sim card but nothing. Before I updated my phone I made a backup, but when I loaded it up it still did not work. I tried flashing different Roms but no dice. Its weird because I can use wi-fi calling and everything works. It is only when I am not on wi-fi where nothing gets read. Can anyone help me? Any help would be greatly appreciated.
Thanks

are you by any chance having this problem when you try vexxoaosp?

Im not entirely sure which one that is, but I dont think so. Could you provide a link to it so I can try it?

I don't think you should try it then.
Sorry mate, did you do a stock reset with a kdz file fitting your model?
I recommend you to use LG Flash Tool 2014 with a stock kdz file. There is a thread about it here.

I tried that...multiple times lol

Did you contact your service provider? Any warranty left?

I bought it second hand, so unfortunately no warranty

[q] no mobile data after imei change

Hi. In turkey they do not allow foreign phones, so i stayed there for week and changed my imei through xposed module called IMEI CHANGER. After that i couldnt register on network, so i stayed there without 3g for a week, only wifi. But yesterday i returned to my country put in my sim card, can receive calls and sms. But no mobile data. I flashed different modems, flashed back to stock, but nothing. If someone has cure please share

anaragayevafr said:
Hi. In turkey they do not allow foreign phones, so i stayed there for week and changed my imei through xposed module called IMEI CHANGER. After that i couldnt register on network, so i stayed there without 3g for a week, only wifi. But yesterday i returned to my country put in my sim card, can receive calls and sms. But no mobile data. I flashed different modems, flashed back to stock, but nothing. If someone has cure please share
Click to expand...
Click to collapse
Pardon if it`s obvious, but did you make sure the APN settings were correct again?

Yeap, that is one of many things i`ve done to get mobile data back

Guys, please help. It`s been 3 days i`ve tried many ways but still no progress. Flashed nb1 stock rom. Tried different modems to access to service mode, which i think problem is there somewhere. When i press back and then input 1 it says menu does not exist. On some pages guys say that its modem related so flashed mf3 and mk2 modems still nothing. Please help. Everything works but no mobile data

phone is showing "Emergency Mode only

All of a sudden my phone is showing "Emergency Mode only" I have rebooted multiple times, reflashed the ROM also but no sucess
Please anyone help me out asap

Try the advice from here. Do make sure to look and see if Safety Assistance is somehow enabled. Safety Assistance can be found in Settings, under the My Device tab.

rbhanot2 said:
All of a sudden my phone is showing "Emergency Mode only" I have rebooted multiple times, reflashed the ROM also but no sucess
Please anyone help me out asap
Click to expand...
Click to collapse
Your phone's EFS partition seems to have been lost. You may recover it by flashing a modem/radio using odin. Search the forums for a few modems and try them one at a time ( reboot after each try to see if it works )

akg7091 said:
Your phone's EFS partition seems to have been lost. You may recover it by flashing a modem/radio using odin. Search the forums for a few modems and try them one at a time ( reboot after each try to see if it works )
Click to expand...
Click to collapse
Yep i fixed it by restoring from the backup i had made in the past.

Phone Radio NOT working/turned on with converted Axon A2017 to Axon A2017U

Hello, first of all I want to let you know that I am not an expert but have so far been able to convert my Axon A2017 to the US A2017U version.
Big thanks [email protected] for supplying the necessary files.
I have:
-unlocked the bootloader
-rooted the phone
-flashed successfully B20
However, When I upgraded to B29, I lost TWRP and the cell radio of the phone is non-responsive. It won't even turn on. Bootloader is sill unlocked. I made phone calls on my T-mobile network when it was the origional A2017 B8 version. So I believe the bandwidths are compatible.
I have already done the following troubleshooting: (note: WIFI currently works just fine)
-My network is with T-Mobile, and I have been using a different axon A2017U for over a year with no problems.
-When I type *#*#4636#*#* and got to phone Info says, GSM Service: Radio Off, and the Turn on Radio button does nothing.
- I have tried working with every setting in this menu with no luck.
-When I insert my SIM card that is working on my current axon 7 into the converted A2017U, it is able to pick up T-Mobile network u.s. LTE, (fast.tmobile.com) and T-Mobile US (tmus). However, there are no bars because the radio is not turned on.
-When I try to search for new networks an error message saying, "network search cannot proceed when the data service is enabled disabled it?" So I disable it and nothing happens except for an error message saying "error while searching for Networks".
-In network mode I have switched to every option available, LTE/wcdma/GSM, wcdma/GSM, and GSM only with no result.
I am currently running Android version 6.0.1 on build B-29. Any help to get the radio up and running to receive phone calls would be greatly appreciated. Everything else is working except for the phone radio to send and receive phone calls.
Thanks for any Help.

Do you still have your IMEI or did the partition get corrupted?

ultramag69 said:
Do you still have your IMEI or did the partition get corrupted?
Click to expand...
Click to collapse
I check the number with several online checks, as well as T-Mobile, and they are unable to bring up any information about the number. I imagine it got blocked or corrupted during the upgrades.
What do I do to unblock it or make it functional again?

Go to settings>About>Status and check your IMEI number. If it's blank its noyt gonna work on any network...
You might be able to restore it if you have a backup of it - no-one will give you their backup as you then have their phone - or as a last resort, you might need to restore to the stock Chinese Rom again and see if that fixes it...
Good luck, I'm off to bed after a long backshift...

ultramag69 said:
Go to settings>About>Status and check your IMEI number. If it's blank its noyt gonna work on any network...
You might be able to restore it if you have a backup of it - no-one will give you their backup as you then have their phone - or as a last resort, you might need to restore to the stock Chinese Rom again and see if that fixes it...
Good luck, I'm off to bed after a long backshift...
Click to expand...
Click to collapse
Thankfully the numbers are there on both IMEI slot 1 and IMEI Slot 2. Thanks for your help. I hope to hear from you after a good night of rest.

Flash the correct modem/bootstack for your device.

Shipcaptian said:
Thankfully the numbers are there on both IMEI slot 1 and IMEI Slot 2. Thanks for your help. I hope to hear from you after a good night of rest.
Click to expand...
Click to collapse
Just go to the LineageOS thread and download the A2017 modem file, then just flash it

Choose an username... said:
Just go to the LineageOS thread and download the A2017 modem file, then just flash it
Click to expand...
Click to collapse
Sounds Good
Will I need TWRP to flash it or can is just use the Reg. recovery system?

Shipcaptian said:
Sounds Good
Will I need TWRP to flash it or can is just use the Reg. recovery system?
Click to expand...
Click to collapse
You need TWRP. Just install it with axon7tool via edl if you don't have fastboot, or try axon7toolkit

Choose an username... said:
You need TWRP. Just install it with axon7tool via edl if you don't have fastboot, or try axon7toolkit
Click to expand...
Click to collapse
Here's the latest update:
I loaded TWRP onto the phone and installed the file A2017U_N_Modem.zip. (Several Times)
nothing has changed. The radio is still turned off and no signal is being picked up from my carrier T-Mobile.
While loading it says: Loading A2017U_N_Modem for nougat system. I am not running nougat and I cannot find any other modem to download. Will that make a difference?
Any other suggestions are welcome?

Shipcaptian said:
Here's the latest update:
I loaded TWRP onto the phone and installed the file A2017U_N_Modem.zip. (Several Times)
nothing has changed. The radio is still turned off and no signal is being picked up from my carrier T-Mobile.
While loading it says: Loading A2017U_N_Modem for nougat system. I am not running nougat and I cannot find any other modem to download. Will that make a difference?
Any other suggestions are welcome?
Click to expand...
Click to collapse
You need to flash the A2017 modem, not the A2017U one
Here: https://www.androidfilehost.com/?fid=457095661767137840

bkores said:
You need to flash the A2017 modem, not the A2017U one
Here: https://www.androidfilehost.com/?fid=457095661767137840
Click to expand...
Click to collapse
Okay it works! I've got signal but when I try to make a phone call and my other phone picks up I can't hear or say anything. Any idea what's happening? I have tried refreshing the signal with no luck.

Hey man, I'm having the same problem with my Axon 7, brand new A2017U. Turned it on for the first time and I haven't had an ounce of radio on. Same things you've tried I've tried and it refuses to work. Mine is not rooted and I don't want to. I've tried downgrading my update and to no avail. Factory reset etc. I've contacted ZTE and they said they have forwarded my details and my phone details, storage size, color etc. To the necessary representatives. I think I'm gonna be sent a replacement, but just wanted to let you know your not alone.

No Cell Service/Modem after flashing dump modem images H910. Advice requested.

Hello XDA,
I recently purchased a H910 from EBAY.
I was able to install Oreo and root it using the excellent tutorials before I was able to have a working sim card on hand so I cannot confirm if this phone was good or bad as I received it. I am using an activated ATT sim card and have used it in another phone with calls, texts, and data working. I have not for the life of me been able to get the any of these features to work on the H910. I have checked the APN settings, I have confirmed both the IMEI number and the sim ID number with ATT. The H910 is able to see the sim card but no mobile network is connected. I can use wifi calling and texting.
I did make a backup/dump of the phone and have flashed the modems, fsg, and misc images with no effect.
I have tried to restore to a stock image of 10q and 20G with the results ending in boot loops so I have not been able to test the stock firmware.
Is there any way to test for a hardware fault?
I would like to avoid returning this phone for something that could be fixed on my end.
Any advice would be greatly appreciated.

MDM3D said:
Hello XDA,
I recently purchased a H910 from EBAY.
I was able to install Oreo and root it using the excellent tutorials before I was able to have a working sim card on hand so I cannot confirm if this phone was good or bad as I received it. I am using an activated ATT sim card and have used it in another phone with calls, texts, and data working. I have not for the life of me been able to get the any of these features to work on the H910. I have checked the APN settings, I have confirmed both the IMEI number and the sim ID number with ATT. The H910 is able to see the sim card but no mobile network is connected. I can use wifi calling and texting.
Click to expand...
Click to collapse
What APN are you using ?
I did make a backup/dump of the phone and have flashed the modems, fsg, and misc images with no effect.
Click to expand...
Click to collapse
This sounds like a hardware failure
I have tried to restore to a stock image of 10q and 20G with the results ending in boot loops so I have not been able to test the stock firmware.
Click to expand...
Click to collapse
are you sure the roms are flashing correctly ? no errors in TWRP ?
I have restored many times with those 2 files and never had a bootloop, flash the 10q or 20G rom then format data before you reboot
Is there any way to test for a hardware fault?
I would like to avoid returning this phone for something that could be fixed on my end.
Any advice would be greatly appreciated.
Click to expand...
Click to collapse
Ive had nothing but great luck getting phones off ebay, but it really sounds like you may have gotten a lemon.
The H910v20 is one of the easiest phones to root and return to stock the 20G rom should work and immediately ask to update to 20H with a AT&T sim in it.
taking the 20G to 20H update will insure you have all the correct modem files and APN.

clsA said:
What APN are you using ?
This sounds like a hardware failure
are you sure the roms are flashing correctly ? no errors in TWRP ?
I have restored many times with those 2 files and never had a bootloop, flash the 10q or 20G rom then format data before you reboot
Ive had nothing but great luck getting phones off ebay, but it really sounds like you may have gotten a lemon.
The H910v20 is one of the easiest phones to root and return to stock the 20G rom should work and immediately ask to update to 20H with a AT&T sim in it.
taking the 20G to 20H update will insure you have all the correct modem files and APN.
Click to expand...
Click to collapse
clsA, Thank you for taking the time to reply, and for your excellent tutorials.
I tried both the stock(default) APN and manually entering the nxtgenphone APN info I was prompted by ATT but no change. Searches for a signal for about 30 seconds and the throws an x over the signal bars. The phone does detect the sim card and shows my phone number.
I do think it is hardware failure. All of the modem problems I have read have an error saying that the radio is off. I do not get this I get a message stating out of service. I also copied the Modem files from another stock H910 20H from a friend and that did not change anything. Their phone also shows signal bars even when the sim card is removed.
I checked the MD5 Hashes and they are correct on the SD card I was using. I saw no errors in TWRP and I tried 3 different flashing combos with both 10q and 20H. The first was to format device and then advance wipe system, cache, and dalvik, then flash, followed by format device. I then tried just format before and format after flashing, and then not formatting before and only formatting after and got the same boot loops with the 3 combos depending on whether I was using 10q or 20g. ie 2 different boot loops with the different zips. Once the boot loop started I could get to the stock recovery to "erase" the phone but that had no change. The only way I found to stop the loops was to flash the 996.kdz file using lgup and start over. The 20H file works perfectly. as does the 10R. It is really odd.