Data decryption on EMUI 9? - Huawei Y7 2019 Questions & Answers

Is there a working method to decrypt data on EMUI 9? actually I have Android 12 GSI installed on EMUI 9.0 ROM Firmware
The main reasons is the files and data are in random names in TWRP this means I can't backup data, move files from my phone to my pc or flash from internal storage, and this is so annoying.

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I can not mount data after installing MIUI 8

Hi! I installed the last zip of the MIUI 8 Rom and i happened, i can not mount data so i can not see my files from my internal storage.
I have tried with Hybrid recovery and TWRP last version.
I was on AICP 12 and Hybrid recovery. I wiped system, data, dalvik and cache and i installed MIUI 8 and that chinese screen appeared.
I have important files on my internal storage.
This isn t the proper section for open this thread. You could write in the already opened miui thread. Explain how did you flash the rom and which one in particular.

TWRP Recovery Restoring Guide Help

Hi,
I want to revert back to stock MIUI !
I had a backup of my MIUI ROM on TWRP.
So my question now is
• can only Restoring The MIUI from TWRP will delete the my current RR ROM ?
• my backed up ROM was of about 10 GB or so , so will I need to have 10 GB of internal Storage before I Restore the MIUI ROM?
• I am rooted now and Was rooted in MIUI ROM , will I get the root back?
- any additional Info is welcomed -
Reply as soon please because I really need this fast !
Your current rom deleted
Need 10 GB above free internal storage
Yes you root get back
Yes, you can restore a MIUI backup in TWRP.
Yes, it will overwrite whatever rom you currently have installed.
If internal storage space is an issue, just use a micro SD or USB drive connected via OTG cable.

[HELP]Oreo based ROMs PIN bug

I know this is might be common issue to people who flashed any Oreo ROM and is happening to my Mi5 as well.There is a bug where the Oreo ROM automatically encrypts the TWRP.The password is your current PIN.However,I want to try another ROM and when I get pass the loading logo(lets say Lineage logo) it asks for my PIN.I entered my PIN correctly,the previous PIN I used on my Oreo ROM,but it didnt work.I tried removing the file where the PIN is contained via ADB and its still locked.I wiped everything on my internal storage and now the dreaded PIN is gone.How do I fix this issue? Should I remove my PIN before I flash another ROM? I mostly use my internal storage as my main storage.
RebornCheiko said:
I know this is might be common issue to people who flashed any Oreo ROM and is happening to my Mi5 as well.There is a bug where the Oreo ROM automatically encrypts the TWRP.The password is your current PIN.However,I want to try another ROM and when I get pass the loading logo(lets say Lineage logo) it asks for my PIN.I entered my PIN correctly,the previous PIN I used on my Oreo ROM,but it didnt work.I tried removing the file where the PIN is contained via ADB and its still locked.I wiped everything on my internal storage and now the dreaded PIN is gone.How do I fix this issue? Should I remove my PIN before I flash another ROM? I mostly use my internal storage as my main storage.
Click to expand...
Click to collapse
Have you formatted your data once before flashing any oreo rom? Happened with me too, but only thing you need to do is just format the data once. And it doesn't matter if you keep or remove the pin on your device, since it it wiped when you wipe the system and data. The only thing you need to remember is to format the data once everytime you switch between android versions. (Ie one format when switching from 7.1.2 to 8.0 or 8.1 and one format when switching from 8.1 or 8.0 to 7.1.2)
MyNameIsRage said:
Have you formatted your data once before flashing any oreo rom? Happened with me too, but only thing you need to do is just format the data once. And it doesn't matter if you keep or remove the pin on your device, since it it wiped when you wipe the system and data. The only thing you need to remember is to format the data once everytime you switch between android versions. (Ie one format when switching from 7.1.2 to 8.0 or 8.1 and one format when switching from 8.1 or 8.0 to 7.1.2)
Click to expand...
Click to collapse
I did the wipe cache and data.But not the internal storage since the ROM was placed on there.
RebornCheiko said:
I did the wipe cache and data.But not the internal storage since the ROM was placed on there.
Click to expand...
Click to collapse
Yes this is one thing which bugs everyone, but formating data is important, you can either get an sd card, or after formating you can transfer the file from pc to device
MyNameIsRage said:
Yes this is one thing which bugs everyone, but formating data is important, you can either get an sd card, or after formating you can transfer the file from pc to device
Click to expand...
Click to collapse
Already fixed the issue.Flashed TWRP 3.2 instead of the older 3.2......it clearly states on twrp website that they added Oreo support on 3.2 and fixed some critical bugs.

step to downgrade from Pie to Miui

Hi i want to ask how is the right to to flash from Pie to Miui??
I do direct flash and i got encrypted so i format internal. But after that i still got encrypted.
Any help??
Thanks
in twrp (same twrp which you used to instal pie ) go to advanced wipe and select everything (except micro sd) and now copy your rom to internal and flash it . it should work

[G965F][STOCK 9.0] Permanently decrypt internal storage not working with TWRP

Hello,
the situation:
* Upgraded from Oreo to Pie with Samsung Stock (June build)
* Flashed TWRP, no-verity, magisk, xposed (Ed) etc.
* then factory resetted (reasons not important)
Everything worked fine. Then I encrypted my internal SD card with the 9.0 Samsung Stock ROM.
Complication:
* I realized TWRP cannot handle encrypted internal storage from Samsung Stock.
* Now I can flash (with Odin) a Stock ROM and TWRP.
* But I cannot unencrypt my internal storage using TWRP
* This MEANS I cannot flash magisk via TWRP etc.
> When I go to TWRP > wipe > wipe data, TWRP formats internal storage (it is then not displayed as "0 MB" anymore)
> However, when I re-flash stock rom - the internal storage gets apparently encrypted again without me chosing the option
Is there a way out? Otherwise I have effectively killed my S9+ for root usage under stock rom (which I need for camera performance - sole reason I bought the s9+).
Thank you in advance.
Akalias
My Devidc: G965F, Exynos
So i realize that twerp is not capable of decrypting internal data storage for the s9+. But is it a bug? I mean there must be a way to just wipe the internal storage without being able to handle Samsung encryption??
//Edit
just FYI: installing the following ROM with the "_rescue" suffix as explained by the dev, solves the problem of the encrypted storage!
https://forum.xda-developers.com/ga...-development/rom-u1arc5-devbase-v5-2-t3764822
Ok so this is getting interesting.
1. Encrypting with Samsung Stock
2. Wiping Data (wipe "yes") with TWRP
3. --> Internal Storage accessible again - but no ROM installed
4.A.1. Reflashing samsung stock
4.A.2 Internal storage automatically encrypted again
4.B.1 Alternatively: Flashing DevBase Samsung Stock
4.B.2 Internal Storage still decrypted and accessible via TWRP
4.B.3 Wiping DevBase ROM
4.B.4 Flashin original Samsung Stock
---> Internal Storage encrypted again and not accessible for TWRP
Question: Does encrypting the internal storage via Samsung Stock once, trigger a flag that causes the phone to be permanently be re-encrypted if flashing stock ROM?
Is there a solution to this?
So i assume no one has encounter this ever before or has enough technical acumen to give a hint?
"_rescue" totally worked.
TheAKAlias said:
So i realize that twerp is not capable of decrypting internal data storage for the s9+. But is it a bug? I mean there must be a way to just wipe the internal storage without being able to handle Samsung encryption??
//Edit
just FYI: installing the following ROM with the "_rescue" suffix as explained by the dev, solves the problem of the encrypted storage!
https://forum.xda-developers.com/ga...-development/rom-u1arc5-devbase-v5-2-t3764822
Click to expand...
Click to collapse
Thanks for the referral.
I was in the exactly the same predicament as yourself.
Flashing the latest XSG (UAE) firmware encrypted /data and I couldn't decrypt it.
_alexndr is a genius!

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