Zerex recover

fw update tool:
How to recover ?
1. download and install APP
2.Place your smartphone within 1~3 m to your watches.
3. Turn on APP, press "find device"and slecet one device in the list
4. Press "firmware update" to start recover
5. Firmware update will take around 5~7 minutes,please do n't switch to other program or close APP

If can't find the device, please wait a few minutes and try again