No Signal After Bad Flashing - Xiaomi Mi A1 Questions & Answers

Hi, after by accidently flash my mi a1 with the factory.bat and lost my imei and the persist partition finally i was able to recover my Imei but i have no signal still, there is a fix for this?
Sorry for the bad english btw

Have you tried restarting your device?

gsnmartinh said:
Hi, after by accidently flash my mi a1 with the factory.bat and lost my imei and the persist partition finally i was able to recover my Imei but i have no signal still, there is a fix for this?
Sorry for the bad english btw
Click to expand...
Click to collapse
Check your imei ID and imei slot!

Because you used the factory.bat you destroy the persist data and of course the IMEI information.
Whoever put the MyFlash script factory.bat would deserve to kick it.
I made the same mistake, I got my mobile started with the instructions, see. below.
Here's the solution: https://forum.xda-developers.com/mi-a1/how-to/guide-how-to-restore-imei-permanently-t3759190

Related

lost IMEI after EFS format...

Hi guys,
I occidentally formatted my EFS thus I lost my IMEI number... How can I repair it?
cheers
Only can fix qbanin, me and a technical service.
seraser said:
Only can fix qbanin, me and a technical service.
Click to expand...
Click to collapse
Hi, i have the same problem, lost my IMEI and dont have any backup from esf partition, so how can i proceed for you or qbanin to fix my lost IMEI?
Thanks.
you can recover IMEI with JMG, look this report ~ http://forum.xda-developers.com/showpost.php?p=11325004&postcount=2

Need help in fixing Samsung nore4 N910s Null imei

Assalam o alaikum
I've Samsung Note 4 N910s
While installing custom rom, phone was bootlooping so i pulled the battery but when i again started the phone the internal storage was wiped and Phone was showing Not registered on network and when I dialed code to check imei the imei was 0000000000000000000
I've installed the stock firmware but Still no imei
Can anyone help me to how to fix it
Thanks in advance
Hy friend, have you backed up EFS? You can restore efs data, your imei will be back. Maybe
Sent from my SM-N930F using Tapatalk
zzudha said:
Hy friend, have you backed up EFS? You can restore efs data, your imei will be back. Maybe
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
Assalam o alaikum
Hey Buddy thats the problem
I didn't back it up
maxi65 said:
Assalam o alaikum
I've Samsung Note 4 N910s
While installing custom rom, phone was bootlooping so i pulled the battery but when i again started the phone the internal storage was wiped and Phone was showing Not registered on network and when I dialed code to check imei the imei was 0000000000000000000
I've installed the stock firmware but Still no imei
Can anyone help me to how to fix it
Thanks in advance
Click to expand...
Click to collapse
I am afraid your efs partition and imei is lost you should have a backup from twrp.
If you take my advice just go to any repair shop and they will write a new certificate files using a box called "dongle" it will cost you less then 10$ i guess without this box its not possible to get your imei back so dont waste your time and dont flash files you dont know because your 200$ device may end up hard brick and completely useless.
Trex888 said:
I am afraid your efs partition and imei is lost you should have a backup from twrp.
If you take my advice just go to any repair shop and they will write a new certificate files using a box called "dongle" it will cost you less then 10$ i guess without this box its not possible to get your imei back so dont waste your time and dont flash files you dont know because your 200$ device may end up hard brick and completely useless.
Click to expand...
Click to collapse
I didn't back it up and now give my phone for repair but in Pakistan there is no skilled and experienced technician.
They even don't know what had happened to the fone.

Lost efs backup for moto g5 plus

I forgot to take backup of my original EFS and now my IMEI 0 .
I tried some methods to recover IMEI
1) go back to stock rom and take efs backup but there also IMEI is 0 .
2) try to generate IMEI
Etc. Etc.
But I'm failed to recover my IMEI
Anyone knows how to recover IMEI ??
Sach27298 said:
I forgot to take backup of my original EFS and now my IMEI 0 .
I tried some methods to recover IMEI
1) go back to stock rom and take efs backup but there also IMEI is 0 .
2) try to generate IMEI
Etc. Etc.
But I'm failed to recover my IMEI
Anyone knows how to recover IMEI ??
Click to expand...
Click to collapse
I too have lost mine not realizing this is a problem reverting back from oreo to stock
from my understanding the iemi is on your sim tray, but as far as EFS i have no idea whats in the file it self. I hope this gets worked out i cant even use my phone and im pissed
update
https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808
worked for me. flashing pixel. im just guna use pixel because its working whatever. but from there you can back up ur efs
PixelExperience_potter-8.1.0-20180117-1338-OFFICIAL
vonwap said:
I too have lost mine not realizing this is a problem reverting back from oreo to stock
from my understanding the iemi is on your sim tray, but as far as EFS i have no idea whats in the file it self. I hope this gets worked out i cant even use my phone and im pissed
update
https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808
worked for me. flashing pixel. im just guna use pixel because its working whatever. but from there you can back up ur efs
PixelExperience_potter-8.1.0-20180117-1338-OFFICIAL
Click to expand...
Click to collapse
So did you recover your imei in pixel experience rom?
u can recover u r imei in omni rom or pixel expirence

IMEI/The EFS Partition messed up! Help Please! ?

Hello!
It's Briefin here, [okay first a quick background of mine: I'm very familiar with Custom Roms/Recovery/Rooting/Kernel etc. And have been doing it since a long time. Never got any significant issue to write on XDA. So it's my first thread. ] Okay now the issue is I recently flashed the EFS Partition of an another device (A TWRP backup file). The device from where I got the backup file was of the same model as mine of course. So it should be okay I thought. But after that, my phone's network signal stopped working. Tried everything available on the web but nothing worked. My whole IMEI is just messed up. It's showing 0(Zero). So my question is, is there any way that I can rewrite my IMEI?
Device name: Asus Max Pro M2 (X01BD)
Thanks!
Need a proper EFS
Same problem occurred with me. Mobile networks not working. I am a newbie in this section (custom ROMs). So I need a proper EFS backup(if this works).Please help someone.
maybe you can try this one bro
Messed With IMEI while Enjoying flashing?
IMEI number is a personal identifier and if gets corrupted you can loose working of SIM in those phone. Why would it happen? 1. Probably you went High and cause your modem to get corrupted? 2. Or the Old way deleted/removed/ate away NV_RAM file...
forum.xda-developers.com

NOT REGISTERED ON NETWORK AFTER UPDATING ROM

Hello, everyone! This is my first post on XDA so sorry if it ain't in the right place.
So... What I did is manually updated my S8 to Android 9 through Odin but it isn't receiving signal and it shows that I'm not registered on network. I already tried everything I could but I can't solve this issue. Can someone help me?
Edit: my phone was working perfectly before I ruined it all.
IMEI ok, signal ok, it's not a hardware problem. I've tried configuring APNs and the ROM is the correct for my phone, country and carrier. I just don't know what is wrong. Thanks for all the replies
Try these:
Reconfigure APN's in the cellular data settings.
Check if your phone has IMEI, if you flash-all you may also lose the EFS partition. If so you have to restore your EFS partition backup.
If you flashed the wrong carrier's android, you'll have to flash the correct one. For example your phone is T-Mobile, but you flashed AT&T version.
Goodluck.
XDHx86 said:
Try these:
Reconfigure APN's in the cellular data settings.
Check if your phone has IMEI, if you flash-all you may also lose the EFS partition. If so you have to restore your EFS partition backup.
If you flashed the wrong carrier's android, you'll have to flash the correct one. For example your phone is T-Mobile, but you flashed AT&T version.
Goodluck.
Click to expand...
Click to collapse
Hello! Thanks for commenting.
I tried configuring APNs but it still not working.
I'm sure I flashed the correct ROM.
I think I lost the EFS partition as you say, since I didn't backed up anything (I'm feeling silly). How do I restore my EFS partition? Thanks again!
Pol_Werty said:
Hello! Thanks for commenting.
I tried configuring APNs but it still not working.
I'm sure I flashed the correct ROM.
I think I lost the EFS partition as you say, since I didn't backed up anything (I'm feeling silly). How do I restore my EFS partition? Thanks again!
Click to expand...
Click to collapse
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
XDHx86 said:
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
Click to expand...
Click to collapse
Okay, this is what I get. I've tried flashing the proper modem for my phone but it just won't work huh. Appreciate the help.
Pol_Werty said:
Okay, this is what I get. I've tried flashing the proper modem for my phone but it just won't work huh. Appreciate the help.
Click to expand...
Click to collapse
I honestly have no idea man, sorry not being of much help.
All I can help with is provide you with this tool.
On a side note the image you put there is completely useless and it only exposes your IMEI. The barcode also contains info about your IMEI.
Goodluck.
XDHx86 said:
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
Click to expand...
Click to collapse
hey, sorry if it's a little late, but i'm having the same problem and my imei is perfectly fine, you know how to solve it?
LemurAmore said:
hey, sorry if it's a little late, but i'm having the same problem and my imei is perfectly fine, you know how to solve it?
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Click to collapse
I saw your thread and my guess is that your device is network locked by IMEI, if you contact your network provider they can confirm it for you otherwise try a different sim card and see if it works.
XDHx86 said:
I saw your thread and my guess is that your device is network locked by IMEI, if you contact your network provider they can confirm it for you otherwise try a different sim card and see if it works.
Click to expand...
Click to collapse
ok i think i missed some important things, this device is refurbished, and i checked the imei and it doesn't match to the device, the imei belongs to a galaxy grand prime, idk if that change something important
LemurAmore said:
ok i think i missed some important things, this device is refurbished, and i checked the imei and it doesn't match to the device, the imei belongs to a galaxy grand prime, idk if that change something important
Click to expand...
Click to collapse
also i just asked my network provider and the imei seems ok
LemurAmore said:
also i just asked my network provider and the imei seems ok
Click to expand...
Click to collapse
perhaps you need to reflash the modem.img on your device, you can get it from here
Did you find a fix for this issue? I've same issue with my S8+. Phone keeps saying there is a Network or SIM Card error on any Lineage ROM (with Android 12 or 13).

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