It is used for original LCD and battery, non-original cannot be guaranteed About 11 12 13 battery board: You can't read or write without Flex. If you want to read and write to 11/12 series of the battery. You must need to order flex too. Datacable/Headset detection: Independent jacks to avoid false data, original/IMF/Anti-original.Counterfeit indentification in on second. Battery Board (For iPhone 6-13 Series). Qianli Apollo without batteryinclde lcd board(7-11pm) and battery board(6-13pm).