No, just open App Store and wait for 30 sec. and switch to a gray bg. The IR last about 15 sec. I tried a longer period and the formula is like this:
IR is the half of duration. For 4 min. IR last 2 min.
Can you please give the production week of your iPad ?
Klantenservice: Serienummers
I have been changing my iPad rMini 32 GB LTE for the 4th time because of terrible image retention!