S4 shuts off & hard to reboot or unable to reboot?

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f10a

Senior Member
Sep 13, 2011
438
17
Samsung Galaxy S21
S4 using Insane KK v9 and everything has been running smooth for a long time now but now the phone will randomly shut off when on battery (full charge). When I try to power it back up I get the samsung logo for a few seconds and then it goes blank and shuts off again. Battery pull results in the same, but if I plug it in again it might boot up normally, OR I get a grey battery pic followed by a green one showing a charge, but still unable to boot.

Any ideas?
 

serio22

Senior Member
Jul 1, 2012
3,215
1,134
Houston
Could be a stuck power button. Try to see if you can fix it by hitting the side against a surface or open the device