Factory Reset (Hard Reset) the Samsung Galaxy A40 (Tow methods). Put your Galaxy phone into Samsung Recovery Mode. Wipe the cache partition on the Samsung Galaxy A40. Soft reset your Galaxy A40. You can use this helpful guide to solve a lot of problems (Remove the forgotten pattern lock...
1. OpenSettingson a normal working Android phone and navigate toBackup & reset. 2. SelectBack up my dataand enable it on. Then go back toBackup & resetscreen, sign in Google account which you have backed up files with and toggleAutomatic restoreon to recover data from dead Android phone ...