EFS backup guide request - Xiaomi Mi Max 3 Questions & Answers

Hello,
Can someone please make a guide for how to do EFS backup and restore?
I would be very grateful

mierlo420 said:
Hello,
Can someone please make a guide for how to do EFS backup and restore?
I would be very grateful
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Can't you just back it up and restore in twrp?

I read somewhere that they discouraged the TWRP backup method for efs, but maybe that information was outdated or device specific.
Thanks for your answer, i will backup with TWRP.

mierlo420 said:
I read somewhere that they discouraged the TWRP backup method for efs, but maybe that information was outdated or device specific.
Thanks for your answer, i will backup with TWRP.
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I've never had an issue with it in the past. I'll read up further for you and update shortly.
Edit:
Useful information: https://forum.xda-developers.com/moto-g5s-plus/help/difference-efs-persist-partition-t3832892
Basically, backup your EFS and Persist. I checked my Persist and it's 0mb, but I read it's only 300-400 kilobytes so that explains the 0mb I assume. Persist is the map needed to reconstruct your EFS backup apparently. Not sure if latest TWRP has it, but OrangeFox recovery (which I'm currently on) has it. I highly recommend OrangeFox recovery to anyone wanting a nicer/cleaner recovery with more features.

Related

[Q] About EFS Backup

Hi Friends,
i have a noob question about the EFS backup. So far i understand is the backup on 4.1.2 not compatible with 4.3 (new bootloader) b'coz it has a different folder path. What me makes scare is, i've read some posts from some users that they have no imei after official uptade with odin.
Why do i ask? I want to backup efs and flash the pre-rooted 4.3 rom without new bootloader b'coz i feel safer and the efs backup will work. But in my mind is to test the new 4.3 with new bootloader and knox (i know its not easy to get 4.1.2 back)
Is it really risky o are there some newbies wich makes mistakes? Can i paste the old backuped EFS folder in to the new path for correct imei?
I really searched on the forum also except XDA, but there are similar questions with different answers.
Thanks to all
I think that if you are worried about restoring, you should do a full nandroid backup to SD card from recovery. That way you don't need separate EFS backup as it is included in nandroid backup, so you can restore whole phone exactly as it was before.
dalanik said:
I think that if you are worried about restoring, you should do a full nandroid backup to SD card from recovery. That way you don't need separate EFS backup as it is included in nandroid backup, so you can restore whole phone exactly as it was before.
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1. Is EFS backup really included in CWMR or Philz Recovery?
2. Can i get back to 4.1.2 from 4.3 (new bootloader) only with an older NAND backup?
tryunus said:
1. Is EFS backup really included in CWMR or Philz Recovery?
2. Can i get back to 4.1.2 from 4.3 (new bootloader) only with an older NAND backup?
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1. I don't think so. In Philz, efs backup option can be found in Custom Backup menu
Check this thread out for backing up EFS http://forum.xda-developers.com/showthread.php?t=2389426
2. I did restore my 4.1.2 nandroid backup after flashed DN3 rom. It worked. But do efs backup for just in case.

[Help] Nandroid Backup

I need someone who has done nandroid backup for GT-I9190 running on stock rom (4.4.2). One of my friends has not computer and he wants to flash stock rom via cwm. If someone has nandroid backup and upload for me, I will really appreciate that. Thank you
Nobody will post an nandroid backup because it contains all personal data, IMEI, contacts, messages and so on.
I remember that there is a EFS option in TWRP. If you don't check EFS option, it will not backup EFS.
echelonx said:
I remember that there is a EFS option in TWRP. If you don't check EFS option, it will not backup EFS.
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Sorry I don't use TWRP and don't know too much about.
Good luck

Twrp EFS problem 😊

Which Twrp I use For EFS backup.. ?
Help me.. Some One say Than new Twrp Have Efs backup Problem
And some one suggest Use 3.0.2-0
? Plz Explain It some one... Thanks
Nilshalok said:
Which Twrp I use For EFS backup..
Help me.. Some One say Than new Twrp Have Efs backup Problem
And some one suggest Use 3.0.2-0
Plz Explain It some one... Thanks
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Hello @Nilshalok,
use the GUIDE from the official OnePlus Forum for backing up your EFS without TWRP.
use oficial twrp from here https://dl.twrp.me/oneplus3/. i used this for the first backup of efs,and then,the most important thing i restored my efs when i lost it.

Someone please upload backup of stock oreo for bnd-l24?

There seems to be a community for this phone. But I accidentally wiped my phone before getting a good backup of my stock rom. If someone could please upload a backup so others like me can simply flash it from twrp, YOU WOULD BE OUR HERO AND THE FIRST TO DO THIS!
eskimowarrior7 said:
There seems to be a community for this phone. But I accidentally wiped my phone before getting a good backup of my stock rom. If someone could please upload a backup so others like me can simply flash it from twrp, YOU WOULD BE OUR HERO AND THE FIRST TO DO THIS!
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Backup is alread been uploaded and shared. But cannot be done with twrp style restore, because of the /data encryption
But with twrp and adb shell using "dd" command restore can happen.
The OP of this thread has pulled his backup off-line, but I have shared my backup in this thread.
https://forum.xda-developers.com/honor-7x/development/bnd-l24-unbrick-restore-honor-7x-usa-t3767216

Needed xt1710-08 EFS to restore IMEI

After a problem with my computer I lost the backup made with twrp, and I need to flash back EFS to the z2 after a few test I made. Can someone send me a EFS backup? Tried to restore it with LineageOS but no luck, I keep getting IMEI 0.
sunsetrower said:
After a problem with my computer I lost the backup made with twrp, and I need to flash back EFS to the z2 after a few test I made. Can someone send me a EFS backup? Tried to restore it with LineageOS but no luck, I keep getting IMEI 0.
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You must restore your own IMEI .. But here are TWRP backup from my 1710-08:
St.Noigel said:
You must restore your own IMEI .. But here are TWRP backup from my 1710-08:
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Thank you a lot!!!

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