3XX is beta (alpha?) firmware. There is no point updating to it unless you are obsessed with having the highest version number available.
Many people here with limited technical knowledge flash left and right. It's causing more harm than good.
This is a known issue of ICS on some Sensations.
Look for this specific kernel to fix it:
The amoled panel on the pro may be a big selling point to people over the normal mate because of how much more vibrant the quality of display is. The pro amoled has the ability to cover much more of the srgb scale as opposed to the lcd mate 10 w...
Wait a few days (maybe weeks) and you'll get the update notification. Nougat is on its way and actually pretty close.
Don't bother with beta if you have to ask how to do it.
The fact is he was avoiding the status update like a plague.
Basic communication doesn't cost a thing.