Change or set token through serial port without recompiling

Is there any way to set token or change token after compile just through serial port? I am using esp8266, so SSID, pass, and token would be nice to set up later.

Why would you need to change Auth Token?
For the WiFi credentials it was already solved on our forum, please use search!

http://community.blynk.cc/t/external-esp8266-configuration/

Thanks! Setting auth token is so I can send a friend a copy of my board. Otherwise, his phone may control my board and vice versa.

Auth token can be compiled in, of course. But that is not as slick as general purpose configuration. The above example probably can be used for auth token as well, so I think everything is good. I appreciate your advice!

Hey, if you use QR code generation, it will not send the Auth!!