Fast rooting BV4800 with file

Install Magisk-v26.1.apk to the smartphone storage using adb. Github Magisk Release

cd ~/rooting_tablette/apk
adb install Magisk-v26.1.apk

Attention only version 26.1 of Magisk works, higher versions are not functional for this phone

adb reboot -p

Start MTK client

cd ~/github/mtkclient/
source env/bin/activate

python mtk_gui

connect your phone following the steps given in mtk client gui

This step is only to learn how to put the device in BROM mode, otherwise you can run an MTK command and it will run until it detects a phone.

when device is connected we can't quit and use command line

python mtk da seccfg unlock

BOOT NORMAL

python mtk w boot_a,vbmeta_a,lk_a bv4800_image/magisk_patched-26100_biB8t-signed.img,bv4800_image/vbmeta-custom-sign.img,bv4800_image/lk_patched.bin

BOOT AVEC NFC

python mtk w boot_a,vbmeta_a,lk_a bv4800_NFC_image/magisk_patched-26100_KhTyb.img,bv4800_image/vbmeta-custom-sign.img,bv4800_image/lk_patched.bin

Once installation is complete, we can restart the device.

python mtk reset

Open magisk and see if you can open superuser,
if so, you're root!

Web References