iPhone 8, Stuck on logo


New member
Hi everyone,

I need help with an iPhone 8, it's stuck on the logo, the owner of this phone doesn't know anything about full memory or updates.
I just need to recover my data.
I know it could be a problem with full memory, baseband IC, CPU, WiFi etc.
How can I diagnose it?
I tried flash with 3utool but it stoped on 20% with -1 error

Regards Pawel