Hello Jurij
I have read your post and understand that damaged TRIM area is usually unrecoverable and need factory or special equipment to recreate along with keys and all.
I read that someone offered a way to do it via SETool (I was not able to confirm or find the tool at all).
But they offer the following step.
1. Backup Security Units with this script:
taread:000207D3
taread:000207Da
2. Write a Working TA backup from another phone (same model)
3. Restore Security Units.
What is your opinion on this. Can it be done?
Thanks,
Best regards,
Valeri