POCO X7 Pro - rodin jiiov fixups

So currently, i've managed to fix my fingerprint on my device (panel focaltech with jiiov), Here's what i'm doing below.

Tested by myself and @dCLOWNKING, goodluck for the others that having this issue!

Method 1 — Standard Fix

1. Flash full stock ROM (fastboot).
2. In fastboot:

fastboot erase frp

1. Format data.
2. Boot and set up offline, then set a lockscreen.
3. Do a factory reset from Settings (not recovery).
4. Set up again, do NOT set any lockscreen.
5. Flash any custom ROM you want — do NOT format data.
6. First boot will show "Couldn't start Android system".
7. → Just format data.
8. ROM should boot normally.
9. Set up offline, and do NOT set lockscreen (IMPORTANT).
10. Wait 30 seconds to 1 minute.
11. Try adding fingerprint using the same lockscreen pattern/PIN you used on stock earlier.

Method 2 — Persist Image Method (Use only if Method 1 fails)

⚠️ Warning: BACK UP your persist partition.

1. Flash full stock ROM (fastboot ROM).
2. Run:

fastboot erase frp

1. Format data.
2. Set up offline, set a lockscreen.
3. Root your device.
4. Backup your persist image. Refer to: https://t.me/PocoX7ProOT/91332.
5. Write my persist image.
   File: https://t.me/PocoX7ProOT/93023
   The write steps is the same with step 4, but it's inverted, "if" as my backup persist image file, "of" as the target output ("/dev/block/by-name/persist").
6. Reboot and check fingerprint.
7. Remove lockscreen (set to swipe).
8. Factory reset from Settings.
9. Set up again with no lockscreen.
10. Flash any ROM (no data format).
11. On “Couldn't start Android system”, format data.
12. ROM boots.
13. Set up offline, no lockscreen (IMPORTANT).
14. Wait 30–60 seconds.
15. Try adding fingerprint using the SAME lockscreen used on stock.

Method 3 — Calibration Fix (If enrollment overlay appears but won’t register)

This means your fingerprint module is probably uncalibrated.

1. Flash stock ROM (fastboot ROM).
2. Run:

fastboot erase frp

1. Set up offline and set lockscreen.
   The fingerprint most likely crashing after setup PIN. Retry on settings, still the same. It mostly the fingerprint calibrate is failing.
2. Root the device.
3. Write again your backup original persist image. (Same like Method 2 step 5)
   Check again the fingerprint. If still crashes, continue to the next step.
   
4. Enter CIT mode by tapping Kernel Version repeatedly.
5. Run the Fingerprint Test.
6. If it says fail, follow the recalibration guide: https://youtu.be/jRqGdfzw8GU?si=CZS_lDx3NOt0YGwd
7. Reboot and test fingerprint again.
8. If working, continue:
9. Factory reset from Settings.
10. Set up again without lockscreen.
11. Flash any ROM (no data format).
12. On “Couldn't start Android system”, format data.
13. Boot ROM normally.
14. Set up offline, no lockscreen.
15. Wait 30–60 seconds.
16. Try adding fingerprint using the SAME lockscreen from stock.