I have a model A+ already configures and connected to my wifi. It is running some scripts using the internet connection. The scripts are running on boot, so there is no need of an interface to use it.
Now, I need to send the Pi to my brother and he has zero Pi knowledge and no HDMI monitor. The problem is that the Pi is not connecting to his wifi network and the A+ has no ethernet either.
Is there a way to change the SSID and password to match his network, but without using the Pi? Ie: could my brother modify the SSID and password on the bootable SD card just by using his Windows or Mac computer?
Then he should be able to run the Pi just by inserting the SD card back into it and powering it. The script will be then running on boot.