Chosen Solution

Hi guys I have very strange problem with iPhone 6 12.4.8.Can’t download ,update or delete any app but else wen I make reboot iPhone stuck on apple logo and from second reboot it start. P.S. iPhone was jailbroken .

I don’t have a lot of experience with jail-breaking but by the sounds of it something is definitely wrong with the firmware. I would probably start by wiping the device and trying to flash a new OS onto it?