Software

To update to its maximum version of iOS 12.5.6, see: Update your iPhone, iPad, or iPod touch - Apple Support

And: If your iPhone, iPad, or iPod touch won't update - Apple Support

If the above Apple articles do not help, please post back with relevant information. 

shery292 wrote:

my mind is please update my device

Then, you will need to follow the instructions at the links below, or post back with relevant information.