Question Xperia 1 - no display after battery change

Jun 5, 2023
I bought an official Sony battery to replace the tired one in my xperia 1 (original model).

After putting it back together I sadly have no display. Sounds and vibration have been coming through and it seems to be charging.

I read somewhere that I might have caused a circuit to blow if I wasnt graceful with my approach and recommended changing the daughter board (circuit with USB port). I did this but still no display.

Have I somehow destroyed my phone?

I'd appreciate any help or suggestions.
Thanks for taking the time to read this.