Hello everyone,
I'm facing a persistent bootloop on my Xiaomi 13T Pro, and after extensive troubleshooting, I strongly suspect a hardware failure. I would appreciate a second opinion.
Device Information:
My first attempt to solve this was to flash a Xiaomi.eu ROM based on an older version (~x.103). This flash completed successfully via Fastboot but resulted in a bootloop. At this point, I suspected the issue was Anti-Rollback Protection (ARB) blocking the downgrade.
To rule out ARB, my next step was to flash an official ROM that had an equal version number (~x.111). This led to the following attempts:
My Question:Given that a downgrade (Xiaomi.eu) and an up-to-date flash (Official China) both resulted in a bootloop after a successful flash process, and the ARB theory has been ruled out, is there any software-level fix left?
I'm facing a persistent bootloop on my Xiaomi 13T Pro, and after extensive troubleshooting, I strongly suspect a hardware failure. I would appreciate a second opinion.
Device Information:
- Model (Global): Xiaomi 13T Pro
- Codename: corot
- Initial State: Stuck in a bootloop, Recovery/Fastboot are accessible. The phone was on a newer HyperOS version (let's call it ~x.111).
My first attempt to solve this was to flash a Xiaomi.eu ROM based on an older version (~x.103). This flash completed successfully via Fastboot but resulted in a bootloop. At this point, I suspected the issue was Anti-Rollback Protection (ARB) blocking the downgrade.
To rule out ARB, my next step was to flash an official ROM that had an equal version number (~x.111). This led to the following attempts:
- Attempt 1: MiFlash on a Windows 11 VM (UTM on macOS)
- Goal: Flash the official China ROM (HyperOS OS2.0.111.0.VMLCNXM).
- Failure 1 (File Extraction): Got an Error 0x8007000D: File size exceeds the limit due to the VM's disk being FAT32.
- Workaround: Extracted the ROM on macOS and accessed it via a Shared Folder.
- Attempt 2: MiFlash with ROM on Shared Folder
- Failure 2 (MiFlash Crash): MiFlash crashed with an "Unhandled Exception" when accessing the network drive.
- Workaround: Copied the ROM folder to the VM's local C:\ drive.
- Attempt 3: Flashing with MiFlash from Local Drive
- Failure 3 (Timeout): The flash failed with error: flash timeout at exactly 700 seconds, repeatedly.
- Diagnosis: The VM environment was too slow for the hard-coded timeout.
- Attempt 4: Flashing on Native macOS Terminal (Final Attempt)
- Abandoned the VM. Used native fastboot on macOS.
- The flash_all.sh script was executed.
- Result: 100% SUCCESS. Every partition was written successfully with ... OKAY. No errors were reported.
My Question:Given that a downgrade (Xiaomi.eu) and an up-to-date flash (Official China) both resulted in a bootloop after a successful flash process, and the ARB theory has been ruled out, is there any software-level fix left?
