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Download and install official Samsung drivers on your Windows PC so your computer recognizes the phone in Download Mode.
While holding the buttons, connect the USB cable to your phone.
To disable Android Verified Boot, you need a blank or disabled vbmeta.img file packed into a .tar archive so Odin can recognize it. Step 1: Download the Disabled VBMeta File
If you own a (SM-M315F) and have ventured into the world of custom development—rooting, installing LineageOS, or flashing Magisk—you have almost certainly encountered a cryptic file name: vbmeta.img . You may have also faced the dreaded "Only official released binaries are allowed to be flashed" error after trying to modify your device. vbmeta samsung m31
This comprehensive guide explains exactly what vbmeta does on your Samsung M31, why it blocks custom software, and how to flash or disable it safely. What is VBMeta and Why Does the Samsung M31 Need It?
Flashing a patched vbmeta is the method of disabling AVB on the M31. The disable-verity and disable-verification flags tell the bootloader to ignore signature mismatches. On other devices, this is often done via fastboot commands, but because the Galaxy M31 uses a Samsung bootloader, is the required method.
Power off your phone and boot into TWRP by holding until the recovery screen appears. Download and install official Samsung drivers on your
: Matching your current build number. đź“‚ Step 1: Extract the VBMETA File
On your M31, go to and tap Build Number 7 times to unlock Developer Options.
When your Exynos 9611 chipset powers on, the bootloader (U-Boot/S- Boot) reads the vbmeta partition first. It checks: Step 1: Download the Disabled VBMeta File If
the box next to Auto Reboot . This is vital because you must manually boot into recovery mode immediately after flashing to wipe your data; otherwise, the phone will bootloop. Step 4: Flash the File Click the Start button at the bottom of Odin.
Name the archive exactly . Ensure that inside the .tar archive, the file is named exactly vbmeta.img . Step 2: Boot Your M31 into Download Mode Power off your Samsung M31 completely. Hold down the Volume Up + Volume Down buttons.
Extract the AP_ file using a tool like 7-Zip. Inside, you will find vbmeta.img . Option 2: Using a Blank/Patched VBMeta
Boot back into Download Mode, flash the vbmeta.tar file again, and immediately boot into your recovery to perform a Format Data (typing "yes" in TWRP) to clear out system encryption.
