If you wish to continue using a modified system (like a rooted phone or custom ROM), you will need to disable dm-verity directly. The standard way to do this is by using a custom recovery like TWRP to flash a patch ( no-verity-opt-encrypt.zip ), which modifies the boot image to prevent verification checks on system partitions and also makes encryption optional rather than mandatory on some devices.
Method 1: The Ultimate Fix – Flash Official Stock Firmware via Odin
The most reliable way to resolve a dm-verity error is to completely overwrite the corrupted system files with a fresh, official Samsung stock ROM. Step 1: Download the Required Tools and Files
(Device Mapper Verity) is a security feature in Android that verifies the integrity of system partitions. It ensures the system image hasn't been modified.
How to Fix "dm-verity verification failed" on Samsung Galaxy J2 Prime (SM-G532F)
Wait 3-5 minutes. The phone will reboot. The first boot takes up to 10 minutes. You should now have a clean phone with no dm-verity error.
If the flash fails or the error persists upon reboot, proceed to Method B.