If it works, you're good to go and you can bring down all your stuff. If you aren't sure how to restore with i Tunes, you can follow our step-by-step guide by clicking the link below.If none of the above steps are remedying your Wi-Fi issues, you may need to visit an Apple Store in order to either have your i Phone or i Pad serviced or exchanged.If you need more space for a wireless update, you can update using i Tunes or delete content manually from your device.
IPSW files are essentially just packages to deliver updates to your i Phone, i Pad, and i Pod touch including the baseband and firmware.
Anytime you update your device i Tunes will grab a new IPSW from Apple’s servers.
If rejoining the network doesn't solve the problem, move on to the next step.
Sometimes a setting inside i OS can go corrupt and cause issues with certain networks, or all of them.
We know this isn't possible for everyone, especially if the network you're having issues with isn't your own or may even be a corporate one.