If you can't connect it should be a software problem, but also can't rule out a hardware problem, we suggest looking for after-sales service. Here are some specific instructions:
1, Bluetooth version is more, compatibility is not very good. The new health watch, weight scale, etc., will generally require Android 4.3 or above operating system, in order to be correctly paired;
2, if there is a binding failure, please try to stand on the body fat scale and then bind, or restart the cell phone bluetooth and then re-bind;
3, when the millet body fat scale power depletion, there may be a case of failure to bind, please change the battery of the body fat scale Please replace the battery of the body fat scale and then rebind it again; if you have bound other cell phones and the previously bound cell phone happens to be around, you can try to turn off the Bluetooth of the previous cell phone and try again.
Expanded Information:
YouPin PICOOC was founded on July 24th 2013, and since the production of the first Lipo Scale in 2013, the company has been able to produce a wide range of products. Since producing its first Latin weight and body fat scale in 2013, it now has a number of smart scale products, including S1, S2 and C1 and CC.
On July 13, 2015 Youpin PICOOC announced that its S series body fat scales have obtained the medical device registration license, together with the medical device production license obtained by Youpin PICOOC in September 2014, which makes Youpin PICOOC the only smart body fat scale company in China that has obtained the two licenses for medical devices.
Reference: picooc smart body fat scale - Baidu Encyclopedia