Database Users

cannot root, recovery problem, even twrp

hello. i have ale-21 and after i tried install a failed update, i am in this situation:
1. can't root because after flashed recovery for root i can't access in recovery (black screen)
2. even if i flash twrp it can't be able to wipe for error mount.......
i tried reflash vendor 049 and return to b133 firmware but same situation.
is there a way to do a complete re-format phone and repartitioning all (internal memory and all partitions) to return to stock status?
i hope a help
thanks

Downgrade to Marshmellow( Failed to mount /version)

Hey guys I have a problem with the downgrade from nougat to mm.
I have tried everything from https://forum.xda-developers.com/huawei-p9lite/development/nougat-official-firmware-t3512932
but I am unable to mount /version. I have changed the datasystem form /data and it worked, but with /version I can't do that.
So my problem is that I can't install C432OemInfo-DUALSIM-P9LITE and I can't downgrade. On the other side i wiped all data so I am not able to boot nougat fw anymore.
Thanks for your help!

If you have a twrp backup of MM you can restore in twrp just oem.

I have already tried to restore backup but that's the problem. It's always the same error.

Restore just oem.info

That's the next problem because i have only the system,data and boot backup form mm stock rom

Can't mount system as writable in TWRP (device or resource busy)

Hi everyone,
Just got my new G6, after much pain I managed to unlock the bootloader, install TWRP (v3.2.1.0) and to root it with SuperSU (stable release 2.82).
For now I'll keep the stock rom but I wanted to make a backup in case something went wrong with other tweaking I might do and I couldn't because TWRP couldn't "mount /system (device or resource busy)".
So I went into the mount menu and tried checking system but it just won't. I can mount it as read only but I can't mount it as writable.
If it's of any importance, I couldn't get magisk to install to root the phone and had to use SuperSU instead.
I could do the backup while mounting system as read only but I feel like it might be an issue in the future (for custom roms or even restoring the backup maybe ?) if I can't fix this issue.
So does anyone how to get TWRP to mount system as writable ? Thank you

Elvenstar said:
Hi everyone,
Just got my new G6, after much pain I managed to unlock the bootloader, install TWRP (v3.2.1.0) and to root it with SuperSU (stable release 2.82).
For now I'll keep the stock rom but I wanted to make a backup in case something went wrong with other tweaking I might do and I couldn't because TWRP couldn't "mount /system (device or resource busy)".
So I went into the mount menu and tried checking system but it just won't. I can mount it as read only but I can't mount it as writable.
If it's of any importance, I couldn't get magisk to install to root the phone and had to use SuperSU instead.
I could do the backup while mounting system as read only but I feel like it might be an issue in the future (for custom roms or even restoring the backup maybe ?) if I can't fix this issue.
So does anyone how to get TWRP to mount system as writable ? Thank you
Click to expand...
Click to collapse
Have you formatted data trough the dedicated option in TWRP? Format, not wipe, where you have to put "yes".
Anyway you can try with Melina's TWRP which solves many problems of the official one: https://forum.xda-developers.com/lg-g6/development/recovery-twrp-3-2-1-unofficial-fixes-t3722199

Killua96 said:
Have you formatted data trough the dedicated option in TWRP? Format, not wipe, where you have to put "yes".
Anyway you can try with Melina's TWRP which solves many problems of the official one: https://forum.xda-developers.com/lg-g6/development/recovery-twrp-3-2-1-unofficial-fixes-t3722199
Click to expand...
Click to collapse
I did try it once after the magisk install failed and I assumed it was because of that issue but I haven't tried yet with superSU correctly installed. Should I immediately try the backup after formatting or boot the phone once before ?
The issue I have with Melina's TWRP is that it's not compatible with fulmics and if I were to install any custom rom I think it would be that one (to keep stock camera mostly)

Elvenstar said:
I did try it once after the magisk install failed and I assumed it was because of that issue but I haven't tried yet with superSU correctly installed. Should I immediately try the backup after formatting or boot the phone once before ?
The issue I have with Melina's TWRP is that it's not compatible with fulmics and if I were to install any custom rom I think it would be that one (to keep stock camera mostly)
Click to expand...
Click to collapse
Format data, reboot recovery, and try to install magisk or mount system.
For Melina's TWRP it has NO problems with Fulmics, Zefie said that "officially" is not compatible because two users said that they have problems with that TWRP only with fulmics, i can assure you that with last version of both Melina's TWRP and Fulmics i never had problems like those two users, anyway you can try to use Melina's TWRP and if you have any problems just flash back the official twrp.

Killua96 said:
Format data, reboot recovery, and try to install magisk or mount system.
For Melina's TWRP it has NO problems with Fulmics, Zefie said that "officially" is not compatible because two users said that they have problems with that TWRP only with fulmics, i can assure you that with last version of both Melina's TWRP and Fulmics i never had problems like those two users, anyway you can try to use Melina's TWRP and if you have any problems just flash back the official twrp.
Click to expand...
Click to collapse
Alright so it's been a rough ride.
I formatted data, reboot TWRP and then indeed I was able to mount system as writable.
I then did my backup, which said it was successful and the only error it showed then was "unable to unmount /system"
I flashed magisk and rebooted into the normal system and the phone of course was back to factory settings and asked me my google account. Except that when I tried logging in it always showed me an error along the lines of "google play services keeps crashing". (making it impossible to get through the installation part of the system)
I'm not sure why that happened. I had frozen some apps but that shouldn't have been saved since I formatted data right ? and the phone was working perfectly fine before that.
But anyway I didn't really know what to do at that point so I just jumped the gun and downloaded and flashed fulmics.
It worked fine but only with supersu. For some reason magisk just doesn't want to get installed at all.
The rom itself worked fine but I had no root access by choosing magisk in the aroma installer so I wiped again and installed it again with supersu which works.
I also flashed xposed which is also working as intended.
So I'm all set for now I think.
Maybe when I need to wipe again I'll figure out why magisk doesn't work but for now I'm satisfied.
In any case, thank you for your help

How to root J730GM on Oreo, and install TWRP

Running Oreo, once tried to flash compatible TWRP via Odin, did it properly, and data partition becomes unmountable. So, how do I install TWRP and root via magisk?
Model number - SM-J730GM

souvikghosh915 said:
Running Oreo, once tried to flash compatible TWRP via Odin, did it properly, and data partition becomes unmountable. So, how do I install TWRP and root via magisk?
Model number - SM-J730GM
Click to expand...
Click to collapse
Data partition have encryption, u need to format data (will lose all you data) and you should be able to mount it

Phone not accessable after trying to install Custom Rom

Hi,
so i've tried to root my phone and then to install a custom rom. the root went without any problem. After the root, i tried to install lineage OS 16.0 and followed this guide:
https://forum.xda-developers.com/redmi-note-7/development/rom-lineageos-16-0-t3923203
i downloaded the rom and gapps, put them on my root directory of my phone and then i wiped System,Cache ,Data, Internal Storage and Format Data. After wiping, the roms were gone, so i rebooted and transfered them again into the root directory. Then, i went onto installing (just like i did with magisk) but an error occurred saying:
E: String resource 'zip_compatible_err' not found. Using default value.
Zip Treble compatibility error!
Invalid zip file format!
Error installing zip file '....'
Updating partition details...
...done
Ok. So then, i tried to install another Custom Rom so i went for Oxygen OS, it actually did install but then i couldn't boot into it because it was telling me there was an 'Android System Error'. Ok, back in TWRP, i wiped everything and then i tried to install the Original ROM but i got the same error as above.
For now i tried to download the miFlasher tool but it only wants to download some driver and it literally takes forever.
Hope you can help me...

Download Fastboot ROM for your device and do this Fastboot Method

marcopast said:
Hi,
so i've tried to root my phone and then to install a custom rom. the root went without any problem. After the root, i tried to install lineage OS 16.0 and followed this guide:
https://forum.xda-developers.com/redmi-note-7/development/rom-lineageos-16-0-t3923203
i downloaded the rom and gapps, put them on my root directory of my phone and then i wiped System,Cache ,Data, Internal Storage and Format Data. After wiping, the roms were gone, so i rebooted and transfered them again into the root directory. Then, i went onto installing (just like i did with magisk) but an error occurred saying:
E: String resource 'zip_compatible_err' not found. Using default value.
Zip Treble compatibility error!
Invalid zip file format!
Error installing zip file '....'
Updating partition details...
...done
Ok. So then, i tried to install another Custom Rom so i went for Oxygen OS, it actually did install but then i couldn't boot into it because it was telling me there was an 'Android System Error'. Ok, back in TWRP, i wiped everything and then i tried to install the Original ROM but i got the same error as above.
For now i tried to download the miFlasher tool but it only wants to download some driver and it literally takes forever.
Hope you can help me...
Click to expand...
Click to collapse
Those recoveries are old.. Use orange fox recovery 10.0-2 it will work and format data then install rom.

title?
@BlackGarnett
Thanks, that help me on a quick one!
@loseyourself
Also thank you for this advice, i'm new to rooting smartphones and install cfw since i was using iPhone for the past few years.
But now i got another new question: if i use orange fox recovery and i run a backup with it (i think there will be an option to do a backup), then i format all data and internal storage, can i still recover from the backup or will it be deleted?
thanks again!

marcopast said:
@BlackGarnett
Thanks, that help me on a quick one!
@loseyourself
Also thank you for this advice, i'm new to rooting smartphones and install cfw since i was using iPhone for the past few years.
But now i got another new question: if i use orange fox recovery and i run a backup with it (i think there will be an option to do a backup), then i format all data and internal storage, can i still recover from the backup or will it be deleted?
thanks again!
Click to expand...
Click to collapse
When u make a backup to internal all is lost after format it. Orangefox put files on the internal sd. After format reboot recovery in the option section and flash again Orangefox.

Help me ,i need efs backup for unbrick my decices please