I’m not able to update my software on the device
I’m not able to update my iPhone to the newest software
I’m not able to update my iPhone to the newest software
Try this link...
If your iPhone, iPad or iPod touch won’t update - Apple Support
Try this link...
If your iPhone, iPad or iPod touch won’t update - Apple Support
Since you did not give us the model of your phone nor the current iOS it is running, I can only offer this link...
I have a iPhone 8plus
I’m not able to update my software on the device