Jecyangel:
my heart is heavy I have been crying since.. i got m Poco X3 January and on March ending I had an accident that effected the screen. after one month I was able to get the screen. courtesy of macbeyland. just today I went to change the screen and the Engr finally do his worst. On trying to remove the battery he punctured the battery and the battery burned like burnt charcoal black.. I just pray it didn't affect the battery...
what to do now

Take it to authorized distributor in your location. Ask them to check it for you.
I also have Poco X3 and still love it so much. Hope you can get your Poco X3 back as normal soon..