Fix TWRP Format Data Error: E: Unable to check merge status

In this guide, we will show you how to fix the E: Unable to check merge status error when trying to format data via TWRP. Recently, I was trying to delete the locksettings.db file in order to remove the lock screen from my device without performing a data wipe. While I managed to do that successfully on my older device, I hit a roadblock on my OnePlus 11.

Fortunately, I had taken a backup of that file, so I simply placed the file back in its designated location via ADB Push. However, much to my surprise, things didn’t improve even after that, and I was now left with two choices- either to format data via recovery or reflash the stock firmware. While both will result in a data loss, the former method is much easier and shorter to carry out.

TWRP E: Unable to check merge status - 1

Unfortunately, when I tried doing a format data via TWRP, I was instead greeted with the E: Unable to check merge status error. If you are also in the same boat, then this guide will make you aware of a nifty workaround that should help you rectify this issue. So without further ado, let’s check it out.

Fix TWRP Format Data Error: E: Unable to check merge status

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If possible by any means [such as Nandroid Backup], please take a complete device backup. Droidwin and its members wouldn’t be held responsible in case of a thermonuclear war, your alarm doesn’t wake you up, or if anything happens to your device, and data by performing the below steps.

  1. From the TWRP Recovery, go to Wipe > Advanced Wipe > Checkmark Data.
  2. Now, click on “Repair or Change File System” and click “Change File System.”
  3. Then click EXT4, then change it back to F2FS. Now go to Reboot > Recovery.
  4. Now, go to Wipe > Format Data > type Yes > hit the blue checkmark. Success!
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