Fix a damaged or broken logic board!
- Available in 8, 16, or 32 GB options.
Some iPhone 4 logic boards are "locked" to a particular cell service provider. If you wish to stay with your phone's original service provider you must replace the logic board with one locked to the same provider.
Look here for logic boards for AT&T, T-Mobile, and unlocked carriers.
- iPhone 4 CDMA