iphone 4 error 21 during restore
 

iphone 4 error 21 during restore
pls any xpert to helo me out

try with battery to change or charging dock sometime works sometime not

error 21 used to be happened because of antivirus programs,try to stop them before restore...and used to be hardware problems but rare

tried de above still not working

change battery..put dfu mood via ibr..when u update used tiny umbrella online update

if u get any error restore customfrim ware ..try this pm me...

if it still stay in recovery mode (DFU Mode) you have to looking 2 things with hardware problem

1. IC Power
2. Baseband Chip

hard ware problem change the buttry and Jack cable

basband rrleted problem chack in hardware

use latest firmware also check this

c:windows/system32/drivers/etc/hosts
open it with notepad
if you see #74.208.10.249 gs.apple.com please delete it and save!
pleaee restart windows open itune restore again!

Disconnect and Reconnect battery
Tessted 1000%

BR
Lahoot