I recently bought a Raspberry Pi B 3+, I installed Raspbian OS on a SD card and I also bought a 3.5 inch touchscreen. However, the touchscreen display stays white.
After searching a little bit, I found that it is because of the drivers. I then looked for a way to install these drivers but they are all using the SSH way. Now, I have a problem because my situation doesn't permit me to connect to Ethernet (no plug, no cable) or Wifi (protected by a login page).
My question is the following: Can I install the plugins directly on my SD card before to boot? If yes, please guide me.
I don't have HDMI screen neither ...