Pressure box n years of wisdom has recently come out and can be normally configured to access the Internet but after several firmware upgrades found wifi can not be properly configured through the sound wave (hot configuration failure will not succeed) reset n times invalid, ask the official, the official is too lazy The tone. Oh, it's estimated that a generation of products haven't abandoned it.
Dismantling machine is nothing to look good online a lot of direct toss it
Weld TTL (usb and hdmi can be filled with conditions)
Usb/hdmi
Ttl (line sequence white is gnd other two rx tx self-conversion no welding is 5v do not weld will burn ttl serial tool)
After the soldering on the ttl to usb serial board Taobao a lot of baud rate 115200
Ttl start log incomplete posted no good looking inside with hdmi boot information that the original firmware is not shielded hdmi function
Cpu parameter (rk3066)
Command repair
Mainly use wpa_supplicant This program Of course if your ap is not wpa2 You can also use the iwconfig program to link (support no password and wep buzhic wpa2)
First enter su to extract root privileges (android versions after 5.0 cannot)
Wpa_cli -iwlan0 add_network // Add a network and return a number, assuming 1
Wpa_cli -iwlan0 set_network 1 ssid '"......"' // Here ssid is the name of the ap to connect followed by single and double quotes
Wpa_cli -iwlan0 set_network 1 psk '"......"' // here psk is the password
Wpa_cli -iwlan0 enable_network 1
Wpa_cli -iwlan0 select_network 1
Wpa_cli -iwlan0 save_config
Then it will be successfully connected
Restart can also be normal networking
Successfully repaired