@mikolajiwanicki couple of things you want to do first. No, you so not yet have to go to a repair service. WE support self repair and always try to give you options to repair it yourself. First thing to do is to replace your battery [guide|141587] and your charging board. Since iFixit does not yet have a guide for that, use the one [https://www.nadiemellamagallina.com/en/manuales/smartphones-1/poco-1304/poco-m3-1283/placa-auxiliar-11428|from here] It is in spanish so use a browser that supports translation. Those parts are relatively inexpensive and easily obtainable from many online sites. While you are working on your phone and you mentioned you have a cracked screen, rpalce that at the sem time [guide|141589]