Marea B57004 - Firmware Upgrade; Unbind

2.8 Firmware upgrade
Detect whether the firmware version of the bracelet is the latest version. It will prompt if there is a
new version and update to the latest version.
2.9 Unbind
Bind the bracelet to app; click unbinding with bracelet on the device interface to unbind the device.
Please ignore the paired device in the phone settings of iPhone.