Previously, for the cell phones we tested here, when you open the [Authentication Requirements] option, the [pairing] always failed.
After you tested the latest version (6.6.7.0), and we found a improvement in pairing, but there are still existing some problems in the following:
1, Some cell phones, pairing always failed at the first time, the second time will be successful.
2, The sending failure rate of the latest version (6.6.7.0) is very large,over 65%, the main error codes are 44 and 45.
3, Please find and resolve the problem ASAP.
4, The cell phone models we tested are Samsung, LG, Nokia, ZTC, etc.