LG A170 generic phone unlock but damaged

I have a Generic LG phone locked by network. I did direct Unlock using LG Tools. After unlock, IMEI shows ////////////. Yet no service. Then I did factory reset. After which phone turns on with loud noise and trip off. Still doing the same. I tried unlocking again. But says bad imei. Phone can’t boot now. It trips off on boot with load noise.

Sent from my TECNO_P5_PLUS using Tapatalk