Iphone 5s boot apple logo and shutdown
 

hi all,
my 5s after screen replacement work for 1 day....the phont after a day wont startup, boot with red screen, try restore from DFU but get many error, 2005, 17, etc.. i try to change u2 and start only in recovery mode but when i try again restore some eroor. tryed reball power managment and now boot with apple logo 3sec and shutdown. any ideas?

Thanks

Change battery 1st in that case and then u2

check battery, if good check voltages of u2 ic and pm ic

some times error 9 comes for the battery problem ..change the battery ... battery must be original ...

Thanks for reply, i have already changed battery, but i will try change U2, if possible can u share me schematic of u2 voltage?

many thanks

the problem is the flex from the camera. disconect the screen flex and turn on. if the phone boots ups fine then change that flex.

already tryed but nothing thanks bro

same problem with me cell start up and restarts with red or blue display