2.2.3 version. Repair the field strength function, the reading error caused by some errors; repair the audio signal source modulation is not accurate . Optimize the interpersonal experience; improve the shutdown state of the charging speed.
1.1.7 version. Revised the cable compensation function in the S21 mode calculation error, and so on. And in order to support the 1.0.6 version of the hardware then make the necessary improvements.