Using iRemove on such old firmware comes with specific trade-offs:
Some iRemove services claim to directly remove the Apple ID from Apple’s own servers by “whitelisting” the device’s IMEI number. This is the holy grail—a permanent, untethered unlock. iremove tools ios 9.3.5
Once the tool detects the device in pwnDFU, it will upload a custom iBSS (the lowest level bootloader for iOS 9). This takes about 2 minutes. Do not disconnect. Using iRemove on such old firmware comes with
: Essential features like FaceTime , iMessage , and the ability to sign in with a new Apple ID for iCloud services are frequently broken after a software bypass. This takes about 2 minutes
: Some deep bypasses for these specific models require additional hardware, such as an Arduino Uno Go to product viewer dialog for this item. with a USB Host Shield, to enter "pwned DFU mode".
: Do you need to unlock the device to use it with a different cellular provider? MDM Bypass