Apple iPhone Deep Firmware Upgrade mode
From CPKB - Cell Phone Knowledge Base
Apple iPhone Deep Firmware Upgrade mode.
Also known as[edit]
- AppleiPhone reset / hardeset Apple phones
- Applei-Phone format Apple phone
- Apple iPhone DFU Deep Firmware Update / recovery mode / restore / download mode / service mode
- ApleiPhone factory default / master reset
Notes[edit]
- All user data will be erased from phone! (Phone will be restored to its factory defaults.)
- You will need: Apple iTunes and original Provider SIM card (if you have factory lock.)
Compatibility[edit]
Those procedures works on those Apple mobile phones:
Deep Firmware Upgrade[edit]
1. Turn off phone.
2. Start Apple iTunes, and connect iPhone to computer by USB sync cable.
3. Press and hold "Home" and "Sleep / Wake" buttons for 10 seconds.
4. Now release only "Sleep / Wake" button and continue pressing "Home" button until iTunes detects the phone in "Recovery mode".
5. Continue with firmware upgrade.
