My phone stuck at boot loop but turns on when plugged in the charger

suddenly my phone showed volume HUD and it stayed popped in the screen.i thought it may be any tweak issue as my phone was jailbroken (ios 11.0.2) i then did a hard reset by tapping home and power button together. but from then the phone stuck at boot loop. it shows the apple logo and again black screen. i then plugged my phone to the lightning cable and it turned on. but after turning on i noticed the power button not working as well as the volume down button and the vibration switch.and the flash led not turning on neither from control center nor camera.

but after some time the volume buttons and the vibration button started working fine. but the issues remained with the power button and the flash led light.

i cant lock my phone. but i dont know how i can still do a hard reset by tapping that faulty power button :/

i unjailbroken my device and did a factory reset but the issues remained.

help me out.please.

thanks in advance!

(sorry for my bad english as im not a native speaker ).