Posts Tagged ‘downgrade 4.0’

Downgrade iPhone OS 4.0 to 3.1.3 or 3.1.2

If you’d like to downgrade to iPhone OS 3.1.3 (or 3.1.2) from 4.0 (for whatever reason), then you’re in the right spot. If you’ve tried it yourself, you’ll probably get an error at the end of the downgrade/restore process.