Galaxy A13 (SM-A135F and SM-A137F) Custom Kernel

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Jan 27, 2019
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I tried both, neither worked, bootloop. Do you have any other file ?
I can't use it because my computer is broken, I found twrp file for a137f.

Download the twrp file and; Can you tell if it's working or not?

I am attaching the file.
 

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  • A137F U1 ROOT Android 12 A137FXXU1AVF1 File Download.tar
    32 MB · Views: 178

physwizz

Senior Member
Sep 16, 2013
3,762
844
Sydney
I can't use it because my computer is broken, I found twrp file for a137f.

Download the twrp file and; Can you tell if it's working or not?

I am attaching the file.
No I can't check it.
Use method 3

Method 3.
1. Install TWRP app
2. Install TWRP
3. Choose file to flash.(don't select device)
4. Select recovery.img.
5. Reboot to recovery.
6. (You may need to change data partition to ext4 first if format ruins your system)
7. Reboot to recovery.
8. Wipe, format data, type YES.
9. Advanced, terminal.
10.Type multidisabler (twice).
Or flash samsung multidisabler zip
Or, for older phones flash dmverity zip
11.Reboot to recovery
12. Flash Magisk for root(only for method 3)
13. Backup boot, data, super and dtbo
 

nazagan

Senior Member
Jun 27, 2014
282
78
Niort
No I can't check it.
Use method 3

Method 3.
1. Install TWRP app
2. Install TWRP
3. Choose file to flash.(don't select device)
4. Select recovery.img.
5. Reboot to recovery.
6. (You may need to change data partition to ext4 first if format ruins your system)
7. Reboot to recovery.
8. Wipe, format data, type YES.
9. Advanced, terminal.
10.Type multidisabler (twice).
Or flash samsung multidisabler zip
Or, for older phones flash dmverity zip
11.Reboot to recovery
12. Flash Magisk for root(only for method 3)
13. Backup boot, data, super and dtbo
It's not working either, I managed to root by flashing ap patched files with magisk delta and ODIN but TWRP is not working with any of the method you indicate. It simply bootloop, can't flash it with twrp app, it does not accept the files.

It is possible to install GSI by following this guide : https://forum.xda-developers.com/t/...er-img-on-sm-127f-and-sm-a325f-linux.4365511/

but there is some issues like locking the phone and waking it up again make the screen unresponsive, and the network is locked in 3G max (might need ims.apk tweeking)
 

WerBn

Member
Jan 17, 2014
28
2
Hello
I want to install a custom ROM without samsung bloatware in this phone.

I have some noob questions, wondering if anyone can help me:
1. What's the advantage of installing this kernel?
2. In the post, you say "For OneUI 4( also works for GSIs)". What does this mean?
 

physwizz

Senior Member
Sep 16, 2013
3,762
844
Sydney
Hello
I want to install a custom ROM without samsung bloatware in this phone.

I have some noob questions, wondering if anyone can help me:
1. What's the advantage of installing this kernel?
2. In the post, you say "For OneUI 4( also works for GSIs)". What does this mean?
OneUI is the os supplied with the phone.

GSI is generic system image.
The kernel makes your phone run better
 
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physwizz

Senior Member
Sep 16, 2013
3,762
844
Sydney
wizzROM Creator magisk module v4 Thermal

DO NOT INSTALL FROM TWRP

for all Samsung phones

OneUI 2.0 will become QwizzROM
OneUI 3.1 will become RwizzROM
OneUI 4.0 will become SwizzROM

Debloated ROM with Extras
Fixed apps in system/product
Extras:
Battery charge limit
Clean Master
ES file explorer
HKtweaks
SimpleReboot
Root Explorer
Zarchiver
physwizz-2

Thermal throttling removed

Make sure your OneUI ROM iis running befote you start
Installation
1 Backup system from recovery
2 Install the creator from Magisk
3 Reboot
4 Enjoy

NOTE: you may still need to delete some apps from the app drawer.

Name your wizzROM (optional)

1. Use a root explorer to navigate to system/build.prop
2. Tap to Edit build.prop like this

ro.build.display.id=<your-name>

3. Tap disk icon to Save & Reboot


Xda post

@physwizz
 
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WerBn

Member
Jan 17, 2014
28
2
Hello

Even after installing your wizzRom(I did not install your kernel), I'm having some problems:

1. Root explorer says it does not have root permissions, but I've checked and it is allowed by Magisk already.

2. Why can't I uninstall other bloatware? Like "Galaxy Sore", "Samsung Cloud", "Google Duo"? When I try to uninstal with adb "su" commands, I get "DELETE_FAILED_INTERNAL_ERROR" and with an app, for example "System app remover" it just says "not uninstalled". What am I doing wrong?
 
Last edited:

physwizz

Senior Member
Sep 16, 2013
3,762
844
Sydney
Hello

Even after installing your wizzRom(I did not install your kernel), I'm having some problems:

1. Root explorer says it does not have root permissions, but I've checked and it is allowed by Magisk already.

2. Why can't I uninstall other bloatware? Like "Galaxy Sore", "Samsung Cloud", "Google Duo"? When I try to uninstal with adb "su" commands, I get "DELETE_FAILED_INTERNAL_ERROR" and with an app, for example "System app remover" it just says "not uninstalled". What am I doing wrong?
1. Reinstall root explorer apk
2. Delete others from twrp
 

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  • Root_Explorer_4.8.1.apk
    4.5 MB · Views: 16

WerBn

Member
Jan 17, 2014
28
2
I cannot uninstall root explorer. Only disable. Even with root.

Is there twrp for this phone?
Can you provide it?
 

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  • 1
    hes working on fixing that twrp
    currently the fstab is incorrect, but thats fixed.
    now we're gonna see if we can get it to properly format data and boot into android correctly, then we'll test flashing a little more thoroughly
    1
    Hello :D
    when will new version release? and can you compile it yourself and add to releases? and.... why you had error in fstab to mount userdata? lol
    if you want, I can test it / or help you with sth (I have a137f phone)

    edit: I can now wipe data but I can't boot into OS after this, it show an Android Rescue party trigger

    reason is fs_mgr_mount_all
    Had bigger challenges then that hihi.
    My biggest issue is the touchscreen not working on my kernel version. To mount data correctly isn’t an issue. Getting it to decrypt on these stupid mtk devices is….

    Will push it once done. It’ll take me some time.

    Edward
    1
    mouse is working, touch screen also but after 1-2 minutes
    Common issue on stock kernel. Need to build kernel with correct drivers. Is on my to do list for tomorrow.
    I do have the same device, did the twrp on sm-a125f as well. Just need more then 24 hours in one day
    1
    He claimed he made it with a friend
    Hmmm
    he did?
    what happened was that me and @wojtekojtek were working with unrelated things on the a13, and i stumbled upon this twrp so we built it and started fixing the fstab to format data and maybe even decrypt it properly
    i dont recall claiming i made it, but if i did thats not the case at all
    what we did was fork his work and make some patches to fix(ish, WIP) wiping data in the fstab
    its open source tho, we all gotta work together lol.

    when he said created he meant built, as thats all we did at the time he made that post.. (now we have made patches tho)
    we dont mean to take credit away from the work of others, thats immoral and at the end brings us no benefit
    open source means to work together with the work of eachother, not to take the work of others!
    1
    So you forked the dt from Edward?
    He said he created it with his friend and I wrongly assumed he built it from scratch
    yes, we forked it and tried to fix its data (we fixed formatting but not mounting/decrypting, and formatting doesnt work properly anyways)
    its still a WIP basically lol
    but yeah we didnt create it, we just made some patches for it and built the code
  • 3
    physwizz a13 kernel
    Based on a135f U1 binary and u2 binary

    A137f kernel in post #24
    ====================


    For OneUI 4
    ( also works for GSIs)

    Samsung securities disabled
    More CPU governors
    Conservative, On-demand, Userspace, powersave, performance, energy_step, shedutil
    Optimised for performance
    Overclocked for performance
    Underclocked for battery
    CPU: 130MHz - 2210MHz
    lz4 default compression added to zram

    Installation

    Kernel source code

    @physwizz
    2
    yes if you can do the best possible for my equipment, thank you
    Here it is.
    Kernel for a137f
    physwizz A137f S kernel version 1

    Mediatek MT6769V/CU Helio G80

    For OneUI 4
    ( also works for GSIs)

    Samsung securities disabled
    Optimised for performance
    lz4 default compression added to zram

    Installation


    Kernel

    @physwizz
    1
    How to Root and Install custom Recovery TWRP on this device? also I am looking for any Custom ROM, I want to sell this phone if there is no any Custom ROM 64bit version, I hate Android 32bit.
    1
    this kernel helps to get more speed on A13? and about rom's? i search for costum roms for A13 and i dont found anything, do you guys know?
    Yes it will give you better performance.
    Debloated stock is best
    1
    please how to flash kernel
    Installing physwizz custom kernels

    INSTALL AT YOUR OWN RISK
    I AM NOT RESPONSIBLE FOR ANY BRICKED PHONES
    But I will help any well-mannered person to recover.

    A. Preparation

    1. Root the phone
    2. Compress your patched boot.img to make boot.tar
    3. Copy boot.tar to PC


    B. Installation

    Method 1
    Install from twrp

    Reboot to recovery
    Backup boot and dtbo (if available)
    Install kernel zip
    Wipe both caches
    Reboot

    Method 2
    Install kernel from terminal.

    1. Download magisk module (magic-flash.zip) from https://github.com/Magisk-Modules-Alt-Repo/magic-flash
    2. Install module and reboot.
    3. Open terminal.
    4. Navigate to folder containing kernel.zip.
    Use
    ls to list contents
    and
    cd to change directories
    5. Type su
    6. Type flash kernel_name.zip
    7. Reboot

    Method 3
    Using ADB

    Install adb tools on pc
    Connect to PC
    Copy zip file to adb folder on pc
    Open terminal on pc
    Navigate to adb folder
    Type
    adb sideload file-name.zip

    Method 4
    Using boot.img

    Install AIK Mobile from magisk modules
    Use rootexplorer to access
    /data/local/AIK-MOBILE
    Add patched boot.img and tap unpackimg.sh
    Exit the folder and return to see the files.
    Edit the files (eg to add a new Image
    rename Image to boot.img-zImage and insert in split-image folder)
    Tap repackimg.sh
    Rename new_image.img to boot.img
    Compress boot.img to boot.tar
    Copy boot.tar to PC
    Reboot phone to download mode
    Install boot.tar from odin

    AIKLink


    C. Removal

    Method 1
    Reboot to recovery
    Restore boot and dtbo
    Reboot

    Method 2.
    Reboot phone to download mode
    Install patched boot.tar from odin


    @physwizz