iXpand not detected after ioS 9.3.1 update

What Firmware version is on your iXpand? If it is earlier than 4.4.7 you need to update it to work with iOS 9.0 (any version). I have linked the FW update tool for PC below. After you update it should work with the iPad running iOS 9.3.2. 

http://kb.sandisk.com/app/answers/detail/a_id/17496