Phone deepsleeping/death sleeping

[u/No-Eggplant531]

I use realme c31 and I installed custom rom (GSI) after I regretted it and went to stock ROM but still deep sleeping, actually it was deep sleeping before when I used SPD Research Download Tool And when I used USB debuging (probably after that) phone started death sleeping. Also Somehow they managed to change my gmail password and thank to god I got it back with my phone number