Yes, apps always have the same and annoying problem. They sometimes will flash back. And you don't know why.
vShare VIP is good enough. But, sometimes it may flash back. So, how to repair flash back of vShare VIP?
1. Search www.vshare.com on computer(it is only for windows users)
2.Find vShare Helper and Choose download
3.After downloading vShare Helper, connect your iPhone with computer by USB cable.
4.Open vShare Helper and Find "Reauthorization" and Click
It is easy to repair flash back of vShare VIP, just install a vShare Helper. And vShare Helper can do many useful things, like data recovery, files transfer, DIY ringtones and so on. vShare Helper can do all the things that iTunes does and is easier to use than iTunes.
Wrote by Eric on May 5th 2017.