Check with LT - 48 programmer to write code data doesn't solve the problem, use no instrument cannot be connected to the phone. N4Rservice manual download site
 N4Rservice manual download site
After startup check end plug. 80% of flooding machine failure occurs in the tail section, flooding plugged into the back foot part have leakage phenomenon, the main reason is that samsung N288 chips, about the data leakage caused by voltage. The two feet are normal voltage. About 2.9 V to 3 V, flooding opportunities is no voltage or voltage. Below 2.8 V, can cause code failure, the two feet are 5 feet and 6 feet, one foot up to less than 3.5 V, can be directly check he, which we are focused on the tail plug.N4Rservice manual download site