Apple iOS Version & Next Tether Policy – iPhone system and activation status

The Apple iOS Version & Next Tether Policy check provides detailed information about the iPhone’s system version and network status. This is especially important if you want to know whether the device is unlocked and what its software condition is.

What data does the report include?

• iOS version – the operating system running on the device (e.g. iOS 17.3)
• OS Build – the exact system build (e.g. 21D50)
• Activation Policy – the device’s network policy
• Unlock status

What does the iOS version mean?

The iOS version shows which software the device is running.

• Newer version → better security and compatibility
• Older version → an update may be required

What does the Activation Policy mean?

The Activation Policy determines which networks the device can be used on.

• Unlock – unlocked device
• Multi-Mode Unlock – usable on multiple networks
• Carrier-locked policy → limited usage

What does the Next Tether Policy mean?

The Next Tether Policy indicates what network state the device will have after reactivation.

• If unlock → the device remains unlocked
• If carrier-locked → it may become locked again

What does the example mean?

• iOS version: 17.3
• OS Build: 21D50
• Activation Policy: Unlock
• Applied Policy: Multi-Mode Unlock

This means the device is unlocked and can be used on multiple networks.

When should you use this check?

• Before buying a used iPhone
• To verify unlock status
• To check network compatibility
• To inspect software condition

Note: Data may vary depending on device model and carrier.