How can I update iOS 14 in iphone6

Optimize the range of the mobile network, see this Apple article:

If you see No Service or Searching on your iPhone or iPad

https://support.apple.com/en-us/HT201415

Low Power Mode is On.

Charge the iPhone, wait until the battery is fully charged (100%).

The Low Power Mode will turned off automatically.

Hello Axel,

Actually not, I expect that for OP your answers it is clear enough that it is not possible to update the iPhone.

Il just wanted to let OP know to watch out for those 2 things.

Excuse me for the confusion.

Hello Raicya,

You may have overlooked the fact that OP has an iPhone 6. No matter what OP does, and as you know, the iPhone 6 will not be updated beyond what it already has installed and that is iOS 12.5.5.

Happy New Year and a great job by you in these community forums. Keep up the good work.

Axel F.

You cannot update your iPhone 6 beyond iOS version 12.5.5. You will need a newer model iPhone to update to the current iOS version which iOS 15.2.

Axel F.

Understood. Thank You.

Axel F.

My mobile iphone 6 is very bad because it is not working as speed the touch is not correct the hanging is too high I can not use mobile please help help thank you apple