ok i have a white n9
i purchase a full body i guess plastic protector from skinomi or something that like

however i didnt fully install it due to shear frustration with adding the smaller pieces. so i just added the screen protector the back of the phone protecter. Sadly dirt is accumlating around the edges of the back protector. Should i go without and just use the pouch nokia supplied me with? As of right now the phone wont fit inside the pouch because of the screen protectors please advise

the phone is suppose to have durable polycarbonate armour. so will it be fine without?