after changing the display the phone is in a bootloop

Hello,

my display broke so i decided to change it the first time by myself including a new battery. after assembling the phone back together, i tried to switch it on. the huawei and android logo are being shown on the display, but 10 seconds after that, the screen gets black. i tried entering the emui bootloader and got in. i did a whipe and factory reset, cleared the cache but nothing changed. i tried everything else too, but it looks like it cant boot android. what should i do now?