Development [ROOT] [TWRP] [KERNEL] [GSI] for SM-A127f (a12s)

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physwizz

Senior Member
Sep 16, 2013
3,560
787
Sydney
finally figured how to install gsi
1 Flash ofox recovery
2 format and multidisabler
3 Unroot, and reboot to download
4 flash twrp
5 reboot to recovery
6 flash patched boot.img, gsi, and kernel
7 reboot to download mode
8 flash stock recovery
9 boot to recovery, and do factory reset

if you trying to flash another gsi, just do from step 3
Have you tried this



1. Install Orange Fox


2. Decrypt the data. (Format and run multidisabler)


3. Reboot to recovery.


4. Install TWRP recovery.img into recovery partition.


5. Reboot to recovery.

6. Install GSI
 
Last edited:

gueladio67

Member
Feb 17, 2022
12
0
Have you tried this



1. Install Orange Fox


2. Decrypt the data. (Format and run multidisabler)


3. Reboot to recovery.


4. Install TWRP recovery.img into recovery partition.


5. Reboot to recovery.
Hello. In orange
Have you tried this



1. Install Orange Fox


2. Decrypt the data. (Format and run multidisabler)


3. Reboot to recovery.


4. Install TWRP recovery.img into recovery partition.


5. Reboot to recovery.
In orange Fox recovery system slot don't exist.
 

physwizz

Senior Member
Sep 16, 2013
3,560
787
Sydney
Installing a GSI
for a12s(a127f) and m12(m127f)

Download Android 11 GSI with GApps
1. Unzip img file
2.Wipe data from TWRP recovery
3. Install system.img into system partition
4. Install my kernel
5. Reboot

TWRP Trouble.

If you are having trouble installing afaneh92 TWRP, try this method.

1. Install Orange Fox
2. Decrypt the data (Format and run multidisabler)
3. Reboot to recovery.
4. Install TWRP recovery.img into recovery partition.
5. Reboot to recovery.
 

gueladio67

Member
Feb 17, 2022
12
0
Installing a GSI
for a12s(a127f) and m12(m127f)

Download Android 11 GSI with GApps
1. Unzip img file
2.Wipe data from TWRP recovery
3. Install system.img into system partition
4. Install my kernel
5. Reboot

TWRP Trouble.

If you are having trouble installing afaneh92 TWRP, try this method.

1. Install Orange Fox
2. Decrypt the data (Format and run multidisabler)
3. Reboot to recovery.
4. Install TWRP recovery.img into recovery partition.
5. Reboot to recovery.
I have already install crdroid GSI ROM with the method I had explained. It works fine with magisk. Only the Mtp connection missed.
I've try your kernel's but it cannot boot in my device, I don't known why?
First I install orange fox rog recovery and reboot to system. But this recovery hasn't system IMG partition. Then I install via recovery your twrp 3.6 afaneh92 and flash it again in twrp fastboot mode using on my PC minimal adb&fastboot. Reboot to recovery again, flash multidisabler, reboot again to recovery and backup boot IMG only and flash magisk v22.0 zip then reboot to system without loosing any data. After that you're twrp afaneh92 3.6 work very well. I use it to flash the gsi ROM. Thanks
If you need I can explain you the process I use to flash the gsi IMG.
 

physwizz

Senior Member
Sep 16, 2013
3,560
787
Sydney
I have already install crdroid GSI ROM with the method I had explained. It works fine with magisk. Only the Mtp connection missed.
I've try your kernel's but it cannot boot in my device, I don't known why?
First I install orange fox rog recovery and reboot to system. But this recovery hasn't system IMG partition. Then I install via recovery your twrp 3.6 afaneh92 and flash it again in twrp fastboot mode using on my PC minimal adb&fastboot. Reboot to recovery again, flash multidisabler, reboot again to recovery and backup boot IMG only and flash magisk v22.0 zip then reboot to system without loosing any data. After that you're twrp afaneh92 3.6 work very well. I use it to flash the gsi ROM. Thanks
If you need I can explain you the process I use to flash the gsi IMG.
I found the GSIs slow to respond and now I use my wizzROM Creator module
 

gueladio67

Member
Feb 17, 2022
12
0
How to get and use this wizzROM.
It's with the Gsi which I've installed I works presently. Thanks for you're great jobs.
 

gueladio67

Member
Feb 17, 2022
12
0

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  • 2
    Thanks physwizz! With these new recoveries I finally got TWRP booting! I've formatted data okay, have the sdcard accessible after that and a reboot, but now the next problem: a lot of "Unable to find partition for path '/system_root'" messages. And indeed, there is no "system_root" partition entry in fstab. Also the "Mount system partition read-only" checkbox in the Mount section is unresponsive and remains always checked. Any ideas?
    Agh, finally, I found combination, that works for me.
    I have spent days and physwizz hours PMing with me to double, triple check, if I missed some point. It still remain mysterious, why steps leads to different results, as a novice, I can just speculate, if there is some tiny important difference between A127F/DS and A127F/DSN. Or, well.... what about starting "Stock ROM" we are different.

    But there have been some clues.
    Afaneh92's TWRP, it can boot for me, but there has been two things that stink for me. Select Storage - shown Internal storage 0MB capacity and unmountable Data partition, that even if it reports 0MB size, cannot as an empty be backuped, for example. Reboots after proper steps (Format data) leads to slow bootlooping (10mins, I guess Android factory reset trying to finish with some bug in the end).

    Newest TWRP - that one reported lasttime, Srilanka user, it can in some point (physwizz remount command) starts to report Storage size, even Data partition, but installing multidisabler didnt worked for me, leads to Cannot install zip file error. So, not surprise, after data format and reboot, it lead to nothing, well I can just speculate it that un-disabled encryption. Physwizz advice to remount solves part of red colors anout system root.

    I combine those TWRP, using both for part of the job.
    1. Rebooted to Afaneh92 TWRP,
    2. run remount command
    3. run multidisable twice
    4. Reboot directly to download mode
    5. flash SriLankas TWPR, and boot it
    6. Remount command, Format data
    7. Reboot

    voila, system starts, initiate standard default process. Srilankas TWRP can backup all partition I want (including /data). All done.

    I have no idea, if this procedure will help others and will work in other conditions, thats the task for you guys, much much advanced than me. I have just some unclear imagination, whats those steps are about, but there has to be something unfinished with afanehs twrp, that prevent it to work OK in some conditions (hardware, original but regional stock rom)

    Let others know, if it worked for ya.
    HzK
    1
    Root Method

    Twrp and Kernel

    Latest twrp



    Root Method in post#2
    afaneh92 TWRP in post #2
    GSIs in post#3
    Kernel Version 2 & 3 in post #5
    Kernel version 4 in post #11
    Install kernel without TWRP in post#21
    TWRP (new) in post#6
    Skyhawk recovery (new) in post #22
    Orange Fox (new) post #24

    Note
    All of these procedures have been tested on the a127f with u2 baseband
    They will probably all work on the m127f as well.


    @physwizz

    Recoveries for U2 baseband - Working


    Recoveries for U3 baseband - Still being tested

    All recoveries contain physwizz Kernel
    1
    I can now totally confirm that the afaneh92's TWRP image, as well as edward0181's, does not work on the Vietnam-made SM-A127F/DSN: I've rooted it, installed TWRP app, flashed the recovery.img from the app and rebooted into recovery using adb. I'm still getting just endless reboots. So this time the experiment was clean and the "wrong key pressed at wrong time" factor was completely excluded. I'm just curious why any stock firmware and the stock recovery tools works just fine? I've already tried many different country-specific versions from that list and they all flash and work perfectly.

    P.S.: By the way, I've built the latest Magisk from the git master and it works great, so no patched version needed.
    1
    Orange Fox
    From @(Sri Lanka)

    (MTP not working)

    Installation
    Unzip files
    Extract recovery.img

    Method 1.
    If you have already installed afaneh92 TWRP and decrypted.
    1. Boot to recovery.
    2. Install recovery.img
    3. Choose recovery partition
    4. Reboot to recovery

    Method 2.
    From the start

    1. Download firmware
    2. Extract ap file.
    3. Patch with magisk
    4. Flash with Odin
    5. Download recovery.img
    6. Install TWRP app
    7. Install TWRP
    8. Choose file to flash.(don't select device)
    9. Select recovery.img.
    10. Reboot to recovery.
    11. Format data
    12. Install multidisabler zip
    Or dmverity
    13. Reboot to recovery
    Done


    @physwizz
    1
    Agh, finally, I found combination, that works for me.
    I have spent days and physwizz hours PMing with me to double, triple check, if I missed some point. It still remain mysterious, why steps leads to different results, as a novice, I can just speculate, if there is some tiny important difference between A127F/DS and A127F/DSN. Or, well.... what about starting "Stock ROM" we are different.

    But there have been some clues.
    Afaneh92's TWRP, it can boot for me, but there has been two things that stink for me. Select Storage - shown Internal storage 0MB capacity and unmountable Data partition, that even if it reports 0MB size, cannot as an empty be backuped, for example. Reboots after proper steps (Format data) leads to slow bootlooping (10mins, I guess Android factory reset trying to finish with some bug in the end).

    Newest TWRP - that one reported lasttime, Srilanka user, it can in some point (physwizz remount command) starts to report Storage size, even Data partition, but installing multidisabler didnt worked for me, leads to Cannot install zip file error. So, not surprise, after data format and reboot, it lead to nothing, well I can just speculate it that un-disabled encryption. Physwizz advice to remount solves part of red colors anout system root.

    I combine those TWRP, using both for part of the job.
    1. Rebooted to Afaneh92 TWRP,
    2. run remount command
    3. run multidisable twice
    4. Reboot directly to download mode
    5. flash SriLankas TWPR, and boot it
    6. Remount command, Format data
    7. Reboot

    voila, system starts, initiate standard default process. Srilankas TWRP can backup all partition I want (including /data). All done.

    I have no idea, if this procedure will help others and will work in other conditions, thats the task for you guys, much much advanced than me. I have just some unclear imagination, whats those steps are about, but there has to be something unfinished with afanehs twrp, that prevent it to work OK in some conditions (hardware, original but regional stock rom)

    Let others know, if it worked for ya.
    HzK
    Glad it now works.
    What a mammoth effort.
    The a127f/DSN is different in some way from a127f (I have a single Sim)

    Now see if you can install my kernel v4