M6+ is a dream Linux microcomputer using Hisilicon Hi3516 (armv7 core) CPU equipped with 32MB SPI flash and 256MB SDRAM (only 96MB are usable for the user applications, the rest is reserved for the AV codec buffers) and employing the u-blox7 GPS receiver, which generates the 10 Hz NMEA output. I did not like the idea of running it with spyware cloud apps and unknown communication protocols and decided to take over the control. You know that M6+ is running a telnet server app at port 1123. Logging in with username 'ddpai' and password 'ddpai.com' lets you access the engineering menu! Be careful with the commands there. I have just used the 'devm cmd /usr/sbin/telnetd' to start the "real" telnetd from busybox, running at port 23. Then one can log in as user 'root' with an empty password and obtain full interactive control of the device, as you normally do with Linux boxes!