Android guidelines and App not opening

Hello,

I was wondering is there are any guidelines for making an Android app (2D game specific), since I have problems loading my app with my Huawei Ascend G700 and G750. Tappy Chicken did work on the G700 but not on the G750. I could not find any guidelines for settings like lighting, shadows etc. I am trying to make a 2d game (orthographic) but the weird thing is that it build perfectly fine on both phones, but when I try to open the app it gives a black screen or goes off.

I used mostly C++ to make what I have, and a bit of blueprint. I have installed TDAP like the beginners guide suggested, and both phones get detected (UE4 v4.6.1). Any suggestions? Maybe buying a new phone to develop on? (I already have my eyes on a Nexus 5 :P)

And more more question, if I do get a better supported phone, will other devices that do not have that great support be able to run a finished LDR game, like Tappy Chicken?

Thanks in advance!

NeusAap.

EDIT: I just read that I have to remove ANY lighting from a LDR game, but how do I want to make sure that the objects are shown (And not just only black because there is no light)