Hello.. I think I have the same problem but my phone is Huawei Nova Young. So i guess is not a mobile brand issue but android issue? I have emui 4.1as version of software but Im not very experienced on technical issues... What can I do to fix this?
I just bought an Honor Play. Having the same issue. Sudden brightness change when opening certain apps. It's running EMUI 8.1 so it's not been fixed! Disappointing.