I need restore my imei - Redmi K20 / Xiaomi Mi 9T Questions & Answers

I loos my imei. How i can restore? I have unlocked bootloader..

Efs backup, which you probably don't have. If so try to flash stock ROM with Xiaomi flash

AFAIK flashing the stock ROM won't restore your efs/IMEI...
You have to restore it using QPST and the QCN file (or backup) for the phone model :
https://www.getdroidtips.com/how-to-repair-and-fix-imei-number-on-xiaomi-mi-9t-pro/
However if you don't have a backup then you need to find a QCN file for the 9T/K20 (the one in the tutorial is for 9T Pro), so either have someone with the same phone give it to you or Google it.

I can't find the QCN file for mi 9t only for mi 9t pro...

Related

Huawei P8 IMEI corrupt

Hello everyone, I would like to ask a simple question: the IMEI code of my P8 is corrupted and I need to restore it, where do I find the IMEI code to be restored. I made a Nandroid backup but inside there is no such directory "EFS" as in Samsung ..
Where is ??
many thanks
Giampiero
What happens if you restore the nandroid backup? Does the IMEI return?
If not, try the tip mentioned here: [Q]Repair IMEI - for Noobs

Redmi 4 prime no service

I have a redmi 4 prime with no singnal in any slot. I flashed the global rom and the i had this problems. Imeis are ok and read sim but no signal. I read for redmi 4 a way to solve it flashing the modem again by twrp. Where can i find the modem for redmi 4 prime to flash???
Sorry for my english and thanks.
flashed all modems and no signal still. please help!!
Solved. If somebody have the same problem, send me a pm and i help him.
mek32 said:
Solved. If somebody have the same problem, send me a pm and i help him.
Click to expand...
Click to collapse
Reply here for future troubles.
First of all, i erased the modems with the phone rooted using adb commands (erased modemst1 and st2 on the their partitions).
Unroot the phone to open the diagg port typing on dialer *#*#13491#*#*.
Used the QFIL program to restore the phone using a qcn archive who send me a user which cotains their imes and baseband configuration.
Reboot and open the diagg port again.
Used the WriteDualIMEI_W_G_eMMC to rewrite my owns imeis.
Reboot and all wherw fine.
I ll create a qcn with fakes imeis to restore your baseband if you need. Then, you only have to rewrite the imeis with the WriteDualIMEI_W_G_eMMC program.
You will find the programs searching in google easly.
Good luck
mek32 said:
First of all, i erased the modems with the phone rooted using adb commands (erased modemst1 and st2 on the their partitions).
Unroot the phone to open the diagg port typing on dialer *#*#13491#*#*.
Used the QFIL program to restore the phone using a qcn archive who send me a user which cotains their imes and baseband configuration.
Reboot and open the diagg port again.
Used the WriteDualIMEI_W_G_eMMC to rewrite my owns imeis.
Reboot and all wherw fine.
I ll create a qcn with fakes imeis to restore your baseband if you need. Then, you only have to rewrite the imeis with the WriteDualIMEI_W_G_eMMC program.
You will find the programs searching in google easly.
Good luck
Click to expand...
Click to collapse
Thank you. It's a common way to solve that problems but good that sb wrote it.
mek32 said:
First of all, i erased the modems with the phone rooted using adb commands (erased modemst1 and st2 on the their partitions).
Unroot the phone to open the diagg port typing on dialer *#*#13491#*#*.
Used the QFIL program to restore the phone using a qcn archive who send me a user which cotains their imes and baseband configuration.
Reboot and open the diagg port again.
Used the WriteDualIMEI_W_G_eMMC to rewrite my owns imeis.
Reboot and all wherw fine.
I ll create a qcn with fakes imeis to restore your baseband if you need. Then, you only have to rewrite the imeis with the WriteDualIMEI_W_G_eMMC program.
You will find the programs searching in google easly.
Good luck
Click to expand...
Click to collapse
can you upload qcn files ?

Expert advice on restoring someone's efs?

hi all, as people are posting tutorial to downgrade from pie to oreo with the help of restoring boot and efs folder uploaded by them,, is it safe to restore from someone's else twrp backup i mean efs folder??
as per my knowledge efs is backup of imei right?
so restoring from someone's else efs won't affect mine imei?
No help here?
??????????????????????????????/
i don't think so people are helpful here or either not expert as nobody is replying lol
No idea. Sorry
taran181 said:
hi all, as people are posting tutorial to downgrade from pie to oreo with the help of restoring boot and efs folder uploaded by them,, is it safe to restore from someone's else twrp backup i mean efs folder??
as per my knowledge efs is backup of imei right?
so restoring from someone's else efs won't affect mine imei?
Click to expand...
Click to collapse
4-6 months back there was thread why we should not restore efs of someone & proper tutorial for people who messed up their mac address with some kernel.
Now this tutorial on downgrading pie to oreo. I have no idea. Someone's efs would mess your IMEI, wifi mac, Bluetooth mac, thats what i think. But there are tutorial how to edit imei using some Qualcomm tool.
Ask @CosmicDan. He's the expert.
Just flash Oreo on fastboot, with full wipe. Why doesn't that work?
I was having an issue since using custom rom with december fw btw.
and I was mistaken flashing november fw back to solve some calling issue, so I ended up with no signal which should be came from I didn't restore dev's efs backup.
So I start from flashing full clean stock november and ended with bootloop on it, which is something I still curious what cause it.
At that times, I'm on locked bootloader and can't even enter edl to reflash the rom and can't unlock bootloader since the rom still not booting to enable oem unlocking option.
I don't remember what I have done to it, but at times my phone can boot with no signal, 0 imei on sim1 and null on sim2.
So I start to rewrite the imei then everything is back to normal.
Downgraded using the method of restoring boot and efs... Nothing changed for me, imei is the same as in the box of my mi a1. ? Maybe people did something before doing the downgrade that messed up something.
CosmicDan said:
Just flash Oreo on fastboot, with full wipe. Why doesn't that work?
Click to expand...
Click to collapse
@CosmicDan no flashing just oreo doesn't help, phone gets stuck in bootloop, so people has posted tutorial about flashing their efs and boot etc through twrp to get out of bootloop.
Eg: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
fhsd22 said:
Downgraded using the method of restoring boot and efs... Nothing changed for me, imei is the same as in the box of my mi a1. ? Maybe people did something before doing the downgrade that messed up something.
Click to expand...
Click to collapse
but my question why use someone's else efs while downgrading, as efs contains imei and modem backup ..
taran181 said:
@CosmicDan no flashing just oreo doesn't help, phone gets stuck in bootloop, so people has posted tutorial about flashing their efs and boot etc through twrp to get out of bootloop.
Eg: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
Click to expand...
Click to collapse
Well you can try it I guess, just backup the EFS partition and other stuff with my backup tool and you can always go back if worse comes to worst.
CosmicDan said:
Just flash Oreo on fastboot, with full wipe. Why doesn't that work?
Click to expand...
Click to collapse
Xiaomi put out a message on their forum that after the Pie update, the phone should not be rolled back. Its for all Android one models. When users flash an older roms, bootloops occur.
https://www.fonearena.com/blog/271177/xiaomi-pie-oreo-downgrading-disabled-android-one-devices.html
taran181 said:
but my question why use someone's else efs while downgrading, as efs contains imei and modem backup ..
Click to expand...
Click to collapse
But what he is saying is that he did downgrade EFS, but IMEI didn't change. This suggests that EFS isn't the original source of IMEI after all. Or maybe the bootloader can re-write IMEI and stuff on boot, who knows... Surely others have actually confirmed that EFS cross-flash = IMEI change, right? Not just assumed?
...point is, you can backup your EFS via EDL mode so there should be no risk. If you made a full EDL backup of your own device when you were still on Oreo then you would be golden, as EDL has full access to all partitions.

Xiaomi A3 efs backup and restore tool

Xiaomi A3 efs backup and restore tool
to backup
EFS_persist_backup_g0dsend313
to restore
EFS_persist_restore_g0dsend313
download:
http://s4.picofile.com/file/8372556150/a3_efs_tool_by_g0dsend313.rar.html
pass:6969
XDA:DevDB Information
Xiaomi A3 efs backup and restore tool, Tool/Utility for the Xiaomi Mi A3
Contributors
mlm1102003, mlm1102003
Version Information
Status: Testing
Current Stable Version: 0.0.1
Created 2019-09-16
Last Updated 2019-09-16
Exactly what requirements do you need to be able to use this tool, I mean having root and twrp, modifications to the system risk the brick
Andres88z said:
Exactly what requirements do you need to be able to use this tool, I mean having root and twrp, modifications to the system risk the brick
Click to expand...
Click to collapse
Ideally you should have TWRP and Root. Frankly, you don't really need this tool, when TWRP will backup and restore EFS without any issue.
Worst case there is also the option of using QPST, there are also many tools available on Google play for backing up you partitions as long as you have root.
For example: Partitions Backup & Restore
Need qcn of efs backup
please you can post your EFS backup or QCN file from Mi A3, i`m without signal, but IMEI ok. i search on web but i cant find file.
i allready restore full stock ROM with fastboot method, but not fix the problem. After search on web about it, i finded on XdA and mi forum a case of Redmi Note 4 identical and the only method work is the restore with QCN file. please you can post the QCN file from Mi A3?
edson29jr said:
i allready restore full stock ROM with fastboot method, but not fix the problem. After search on web about it, i finded on XdA and mi forum a case of Redmi Note 4 identical and the only method work is the restore with QCN file. please you can post the QCN file from Mi A3?
Click to expand...
Click to collapse
https://androidfilehost.com/?fid=1899786940962589872

Oneplus 8 pro Efs Deleted

My Oneplus 8 pro 2023 Efs complete deleted and phone not recoginize sim card. how i can recover this phone ? or its garbage now ?
Send pick with details
*#06#
And how you deleted and why you deleted efs?
These phones are protected and not able to delete or wipe efs
msm tool deleted it i think. imei and baseband null
hulyahulya said:
msm tool deleted it i think. imei and baseband null
Click to expand...
Click to collapse
Smt ?
i used this tool. Downgrade android 12 to android 10
MSM Download Tool (All Version) 2023 New Update
MSM Download Tool All Latest Version 2022 is a flashing tool for Oppo and Vivo all android flash tool offline Tool 2022 New Update
www.officialroms.com
who can fix that ?

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