What should I try to bring a rear camera back to life?
This is a common problem with this unit. I contacted the manufacture about it (http://www.orientdeal.com/orientphone-one-max-5-inch-1080p-screen-quad-core-1.5ghz-2gb-ram-32gb-rom-android-phone.html) and was told that due to the heat that builds up around the camera the modules fail. They recommend replacing the entire camera module. My unit they told me was under warranty and the work would be completed without cost, IF it was returned to them in China. I sent the unit off and many months later it was returned as "Undeliverable" I contacted them again and they re-confirmed I was shipping it to the correct address and had no idea why it had been returned. I sent the unit back again (At another $14 cost!)and once again after many months it has been returned as "Unclaimed" This time the manufacture will not return my emails or chats and I am beginning to question their honesty. For purchasing a brand new phone, I have now had to buy another to have one that works. I recommend looking at Elephone, quality is good and so far they stand behind their products. I am looking into replacing the camera module myself, but I doubt I would ever buy Orientdeal products again.