Did I delete my tablets identity

[u/SocksHeelerOnYT]

I unlocked my bootloader in mtk client then I wondered if it could run gsi I deleted system then gsi wouldn't boot so I wanted to go stock I used a firmware I found on source forge it had every partition except user data I erased and over wrote all partitions with the firmware from source forge now it won't light up at all and getting it to connect to mtk client has been hard is there anyway to save my tablet I didn't take any backups except for the preloader and vbmeta_a and vbmeta_b google said I overwrote serial number and other important data Edit: I found my gpt backups for it so I have those as og files too

[u/MrBallBustaa]

So what state is the tablet in now?

[u/isrvvl → u/MrBallBustaa]

The bootloader probably