Before moving to more technical solutions, a factory reset often clears partition errors that trigger the dm-verity message. Note: This will erase all data on your device. Enter Recovery Mode : Power off the phone. Press and hold Volume Up + Home + Power buttons simultaneously until the Samsung logo appears. : Use the Volume buttons to navigate to Wipe data/factory reset and press the Power button to select it. to confirm the action. : Once finished, select Reboot system now 2. Flash Stock Firmware using Odin
Ensure your device is specifically the G532F . Flashing G532G or G532M firmware will cause a "PIT partition" error. If you're stuck on a specific step, Do you have TWRP installed or are you using Stock Recovery ? g532f dm-verity verification failed fix
What was the before the error started?