how to restore or reinstall SONY XPERIA ION (lt28h&LTE lt28i) operating system

How to Safely Master Format SONY XPERIA ION (lt28h&LTE lt28i) with Easy Hard Reset?

Talk about SONY XPERIA ION. Produce for new name of SONY XPERIA because at this time, Sony already bought Ericsson…

55 years ago