Download UnlockTool 1.Turn your iPhone into DFU Mode by holding power and home key 5 seconds then release the power and holding home key until you hear a sound from the pc or use 3uTools . 2.Run PWNDFU in Unlock Tool . Note: If the driver is not installed , you must restart your pc into STARTUP SETTINGS by : -Holding shift key , select start -Restart -Troubleshoot -Advance Option -Startup Settings -Restart -F7 3.Boot Ramdisk -You must download Ramdisk For iPhone 6 and 6 Plus that is suitable with your iPhone and extract it into : Drive C / UnlockTool / DataFiles / Apple / -Choose the folder [File Gaster Ramdisk ios 12.x iPhone 6G-6P] . 4. Fix Mount 2 / Fix Mount / stop / Fix Mount agin . 5.Backup passcode . 6. Factory Reset. 7. Repeat the step 1 , step 2 , step 3. 8. Restore Backup+Disable OTA/Erase.
Fixing all kinds of phones.