(e.g., SM-J260F, J260G) are you using to ensure you have the correct file?

Install Android 11 on Galaxy J2 (LineageOS 17.1) - How to Guide!

| Problem | Cause | Solution | | :--- | :--- | :--- | | | Screen driver mismatch (LZ4 vs non-LZ4 kernel). | Download the "lz4_test" variant of TWRP for your specific firmware. | | Unable to mount /data | Encryption is still active. | Go to Wipe > Format Data (not advanced wipe). Type yes . Reboot recovery. | | Touch screen not working | Using a build for SM-J260F (different digitizer). | Use only SM-J260G builds. Boot via USB OTG mouse temporarily. | | Odin fails (SHA256 error) | Samsung's bootloader check. | Use Odin v3.13.1 patched (found on XDA) or rename your .tar.md5 to .tar . | | TWRP keeps disappearing | Stock recovery re-flags on boot. | After flashing, hold Volume Up + Home during the first reboot before the Samsung logo appears. |

He went to sleep, and for the first time in months, his alarm worked on the first try.

Samsung Galaxy J2 Repair Help: Learn How to Fix It Yourself. - iFixit