Samsung Galaxy A70

[piero]

NON !

tu dois d’abord déverrouiller le bootloader..
(authoriser le déverouillage ne suffit pas)

@piero

6) Unlock the Bootloader

→ see details

→ see Brands detailled steps

→ Samsung Brand detailled steps

on newer devices :
immediatly after having allowed “OEM unlock” in the “Developer Options”,

• unplug the device from the PC
• Power Off the device,
• Boot to Download mode :

hold Volume Up + Volume Down + plug the USB cable (connected to a Computer).
You should see a green screen with instructions to unlock the bootloader, by following them your data will get wiped and the device will boot to setup,
set it up so that it has network connection, no need to add acounts or anything. Check that OEM unlocking is now enabled and gray.