Addition of terms of use of phone not acceptable after sale.These conditions are not required.If you put these conditions before sale, I believe you will loose a lot of customers. If you produce good products don't make its sale difficult by putting terms of use.When customer pay you money i.e. the price of your product he/ she has right to use it in his/ her way however you can protect your software in a way you like but without locking the phone.
Under 10000 best phone
Good
Good I just wanted this like phone
Very nice