What is the DRK or DM-Verity for device Galaxy A21sDRK Is an acronym Device root key It is an encrypted number for the device and It is positioned when manufacturing by Samsung.
When we turn on the device, the device checks this encrypted number to check if the system is original or not.
Reasons for the appearance of DRK problem
This problem occurs when we flash the ROM that does not match the device in terms of the version Bashband, Or when flashing a custom ROM by a custom recovery (TWRP) Or by the stock rom For example, Stock ROM but a language has been added to it In this case, the encrypted number will check the status of the system When the system does not match the number, this error will occur, A red write will appear in the recovery mode (Dm-verity Verification failed).
Problems resulting from DRK / DM-Verity
-Stop at the Samsung logo.
-Automatic boot to the recovery mode.
-Restart the device.
Information about supported devices
Device:Samsung Galaxy A21s
Model Supported: SM-A217F, SM-A217M, and SM-A217N
Protection: FRP:ON / OEM:ON / RMM or KG:Prenormal
Note: Paid files (not free)
Warning before starting
-Charge the device battery to a level above 50%.
-Download the files according to the type of device and must not differ any characters.
-Agree that all steps are at your own risk.