I have a HM-10 (probably a clone) which I managed to get into AT mode quickly (by shortening 5V and GND prior to connecting it to the ESP8266 where it's running on), and I can configure it, but I just cannot get it out of AT mode. AT+RESET gives me "OK", but contrary to my HC-05, it doesn't switch from slow to fast blinking and is also not discoverable from my MacBook. I have tried AT+ORGL and AT+RENEW as well, but to no avail.
Does anyone have an idea how to get it working again? Because this way, it's kind of bricked.
Also, is there a way to make the device have a four digit pin only? When I use AT+PIN0000 it returns ERR, only when I use AT+PIN000000 it returns OK.