(AP, BL, CP, CSC files). Locate vbmeta.img inside the AP_...tar.md5 file (use 7-Zip).

You must format your data partition. Boot into your custom recovery, navigate to Wipe > Format Data , type yes , and swipe to confirm. This will erase internal storage but restore boot accessibility. Conclusion

Connect your phone to your PC using a USB cable while holding down both the and Volume Down buttons simultaneously. Release the buttons when you see a blue warning screen.

Bookmark the official XDA-Developers forum for the Samsung M31 (Exynos 9611). The community there provides up-to-date, tested vbmeta files for each new firmware security patch.

(Verified Boot Metadata) partition on the Samsung Galaxy M31

. Its fundamental purpose is to ensure that the software running on the phone has not been tampered with by unauthorized parties or malware. If the bootloader detects a mismatch between the stored hashes in the vbmeta partition and the actual state of the system partitions, the device will trigger a "Security Error" and refuse to boot, protecting the user's data from potentially compromised firmware. Vbmeta and Customization

: Use the latest version of Odin3 (patched versions like Odin3 v3.14.4 are recommended for custom binaries).

If you prefer a file perfectly matched to your current firmware build:

You need a vbmeta.tar file customized to disable verity. You can extract the stock vbmeta.img from your specific M31 firmware version and patch it using Magisk, or download a pre-patched, blank vbmeta.tar file verified for the Exynos 9611 platform from trusted Android development forums. Step 2: Boot Your M31 into Download Mode Power off your Samsung Galaxy M31 completely. Connect your USB cable to your PC (but not the phone yet).

In Odin, click on the AP button and select your created vbmeta_patched.tar file. Configure Options: In the Options tab, uncheck Auto Reboot . Flash: Click the Start button.

Modifying partition tables carries inherent risks. Ensure you fulfill these requirements before moving forward:

I can provide the exact steps or file configurations based on your goals. Share public link

If you have ever tried to root your Samsung Galaxy M31, install a Custom Recovery like TWRP, or flash a Generic System Image (GSI), you have likely encountered the term .