Go back to the install menu, select the Magisk.zip file, and swipe to flash it.
Swipe the slider at the bottom to allow system modifications.
Device variants and bootloader notes
Download the official or highly stable unofficial .tar file specific to your exact Galaxy A20 model. root twrp recovery for samsung galaxy a20 sma205 updated
Go back to and toggle on USB Debugging and OEM Unlocking .
| Issue | Solution | |-------|----------| | “Only official binaries allowed” | Re-lock bootloader or reflash stock + OEM unlock again | | Black screen after TWRP | Hold Vol Down + Power 10s → boot recovery immediately | | Can’t mount data | Format Data + flash multidisabler | | No SIM / IMEI | Restore EFS backup (always back up first!) |
Once the flashing process completes successfully, tap . Step 6: Verify Root Access Go back to the install menu, select the Magisk
Press and hold until the screen turns black.
With the bootloader unlocked, you can now overwrite the stock recovery partition with TWRP. Power off your phone completely.
Magisk (Latest): Download the APK (you can rename it to .zip for flashing). Go back to and toggle on USB Debugging and OEM Unlocking
Download and install the official Samsung USB Drivers.
: Download the latest official Magisk file (rename the extension from .apk to .zip for custom recovery flashing).
Transfer the zip file and the Disable_Dm-Verity_ForceEncrypt zip file to your phone's internal storage or an external SD card. In TWRP, tap Install .