Unable to update my iPhone 6

If your iPhone is currently using iOS 12.5.7......you are correct.....you will be unable to update the phone to any higher iOS version.

Why? iOS 12.5.7 is the end of the line for the iPhone 6.

Time to start looking for a new phone.

flavius131 wrote:

i can't update iphone6

That model can be updated to 12.5.7, no further.