Well, for that device, I don't think it is possible if there is no published android 5 and 6, I do not think it is possible to upgrade it with custom rom as I said, but as far as I understand in some of your comments, you have an eye disease, you cannot see it clearly, if you cannot see it clearly, there is a high probability of any error. You may need to know some English, these program interfaces are definitely not Turkish and as I said before, you can only do this on a PC.