Dear respected customers,
After the release of the FW2.0 to X5 2nd gen, we've been reported of invalid Resume mode. We're sorry for the inconvenience, so we fixed this bug right after we got the feedback and provide this additional version FW2.1 to X5II users.
X5 2nd gen FW2.1: >>Download Address
X5 2nd gen USB DAC Driver: >>Download Address
X5 2nd gen Update Guide: >>Click Here
Complete User Manual: >>Download Address
FiiO Electronics Technology Co., Ltd.