Fix TWRP Failed To Unmount /Data: Device Or Resource Busy Error
The following guide explains how to fix the error Failed to unmount /data: Device or resource busy in TWRP. The most powerful tool in your arsenal for custom development is a custom recovery. From flashing custom ROM to taking a Nandroid backup, it gives us the perfect platform for all these tasks. During its normal use-case scenario, however, you might encounter some issues.
The Failed to unmount /data: Device or resource busy error usually occurs when formatting the data with TWRP. Additionally, once this error is displayed, the Format Data process fails immediately, preventing users from continuing. This guide will show you a few nifty workarounds that can help you fix this issue if you are also experiencing this issue. Keep reading.
Fix TWRP Failed to unmount /data: Device or resource busy
It is recommended that you take a backup of all the data on your device before starting. By performing the steps below, we and our members will not be liable in the event of a thermonuclear war, if your alarm does not wake you up, or if something happens to your device or data.
1: Reboot to Recovery
The first thing you should do is reboot your device to TWRP Recovery. This will refresh the recovery settings and could resolve the issue we are currently experiencing. Wait for your device to reboot to TWRP after you go to Reboot > Recovery. Try doing a format data and you should no longer get the Failed to unmount /data: Device or resource busy error.
2: Remount Data Partition
Check out the results after unmounting and remounting the data partition. How it could be done is as follows:
- Disable MTP from TWRP’s Mount menu.
- If the Data Partition is checked, uncheck it.
- Try formatting the data now and see what happens.
- If the data partition needs to be rechecked and reformatted, do so.
It’s that simple. You can use either of these methods to fix the Failed to unmount /data: Device or resource busy error in TWRP. Please let us know if you have any questions regarding the aforementioned steps. We will get back to you as soon as possible with a solution.
