download and flash Firmware SM-A215 U1 Samsung Galaxy A21 Delete Password and Pattern Lock Fix any Software Fix Hang on Logo After Flash In Update Error Firmware SM-A215
Samsung Galaxy A21 (SM-A215U)
A215USQU1ATF5_A215UOYN1ATF5_BST_10.0.zip
Samsung Galaxy A21 (SM-A215W)
A215WVLU1ATF5_A215WOYV1ATF5_BMC_10.0.zip