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

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physwizz

Senior Member
Sep 16, 2013
3,594
799
Sydney
physwizz a13 kernel version 1
Based on a135f U1 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
 

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  • physwizz_a135f_kernel_v1.zip
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ivan jo hann

Member
Feb 13, 2017
45
12
Montreal
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.
 
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physwizz

Senior Member
Sep 16, 2013
3,594
799
Sydney
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 any Custom ROM 64bit version, I hate Android 32bit.
Root for Exynos 850

1. Download the exact firmware (including upgrade date) for your device from https://samfrew.com or https://www.samfirmware.net/ or https://www.full-repair-firmware.com/search?q=A20 or
2. Download patched magisk
3. Use zarchiver to extract the ap section from the firmware.
4. Use magisk to patch the ap section.
5. Unlock the bootloader.
6. Flash the patched ap file using Odin.
7. Reboot.
8. Go all the way through the set-up process.
9. Don't upgrade your magisk of you won't see the online modules

@physwizz
 

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  • Magisk_patched_for_A21S.apk
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Heathecliff

Member
Aug 18, 2018
6
1
Thanks for this. So I tried to install it via magic flash method cause I have no custom recovery installed as there was none available for my device, and now I'm stuck in a bootloop. Do I need to flash boot.tar again?
 

ivan jo hann

Member
Feb 13, 2017
45
12
Montreal
hey, how to change from 32 bit to 64 bit?
Like other brand XIaomi has 32 bit architecture, but there are so many custom rom like Lineage os which has provided with 64bit architecture that we can easily install any 64bit apps on it,, Samsung brand especially A13 is not really famous and it has refreshed shipped with Mediatek Helio G80 is far capable to run 64bit apps compared to Exynos 850,,, it really sucks just in a few months they replaced it with better cpu performance.
 

Knight Solaire

New member
Jul 24, 2022
2
0
Like other brand XIaomi has 32 bit architecture, but there are so many custom rom like Lineage os which has provided with 64bit architecture that we can easily install any 64bit apps on it,, Samsung brand especially A13 is not really famous and it has refreshed shipped with Mediatek Helio G80 is far capable to run 64bit apps compared to Exynos 850,,, it really sucks just in a few months they replaced it with better cpu performance.
So can I get that custom rom currently without rooting and if yes how do I do it.
 

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    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
    physwizz a13 kernel version 1
    Based on a135f U1 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
    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
    1
    Thank you
    i can't download magic-flash.zip please add
    another link
    I just checked the link and it's ok
    I'll include it here for you