Generate a QR-code to log into Wireless (wifi) with WPA encryption

I installed a command-line QR-code generator: apt install qrencode I used the following format, so the QR scanner knows what to do with the content: WIFI:T:WPA;S:;P:;; generating the QR image file then works like this: qrencode "WIFI:T:WPA;S:My_Network;P:My_very_secure_Password;;" -o wifi_login.png this generates an image file wifi_login.png with the QR encoded string. while the option -o FILENAME or --output=FILENAME makes qrencode write the generated image to this FILENAME. - can be used to print to standard output. The whole procedure works pretty well with MAC devices, but not with Android. **Is there anything wrong with the string, making it not Android-compatible?**