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I have a Raspberry Pi 2 Model B and I bought an 3.5" LCD screen from China called Kedai 3.5. To be able to use it, the Chinese company provides a link for downloading a Raspbian image with the screen driver installed. After loading this image to the SD card, the Raspberry Pi boots up perfectly.

But: As I don't trust their image to be free of any spyware or virus, I would like to transfer the necessary drivers from that working Raspbian system and download and install Ubuntu 16.04 from here.

I already tried to copy the *.img files from /boot/ and as well to copy all the files in /lib/ from the working Raspbian to the desired Ubuntu. Unfortunately, without success. After having done so and trying to boot the system on the Raspberry, the screen remains white.

What files and folders do I have to transfer to make that work?

  • why not just google tutorials on using similar displays? such as tft if your display is tft based? – Mohammad Ali May 28 '16 at 4:07
  • @MohammadAli Tried that already without success. Kedai 3.5 seems to be seldomly used (in my experience, I may be wrong). Hence, all the tutorials I found managed screens of different brands than Kedai 3.5 and are therefore useless. This is why I posted here. – Socrates May 28 '16 at 4:51
  • do you have any idea what protocol is being utilized by the display? – Mohammad Ali May 28 '16 at 4:53
  • @MohammadAli Yep, that would be SPI. – Socrates May 28 '16 at 5:05
  • Just google tft display tutorials and you should be alright. Have you tried using the os that they supplied you with at all? Because it would be helpful to know that you hooked up the display right and that the display is in working order – Mohammad Ali May 28 '16 at 5:07
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I re-organized the README.txt extracted from LCD_show.tar.tz that I extracted from the rpi_35_v1_B_B+_PI2 to make this a little easier to follow, plus added a couple missing steps. I am sure there are other ways to accomplish this, but this worked for me.

Two methods for installation:

  • You can burn the image file "rpi_35_B_B+_PI2.img" to SD card (ApplePi-Baker is free and easy)

-or-

  • Install files using terminal

Here is the terminal command to transfer the .tar.gz from PC to Raspberry Pi (the closer to the /home/ path the easier):

scp /path/to/local/file pi@your.rpi.ip.address:/path/to/remote/file
  • SSH into the raspberry Pi: ssh pi@your.rpi.ip.address [Default password is raspberry]

  • Decompress the file: tar -xzvf LCD_show.tar.gz

  • Change into the new file/path: cd ./LCD_show

  • Update from same path: sudo apt-get update

  • Install new driver: sudo ./LCD35_v1

Then after a few seconds, the system will reboot

If you want to use HDMI, you can run command: sudo./LCD_hdmi


Make sure you are not overclocking the Pi - once the driver installed and the Pi rebooted, my "always" steady white screen was now flickering.

The version numbers from LCD_show.tar.gz need to be the same version printed on the back of the screen.

If your file name uses Chinese writing, just rename the file in English but keep the .tar.gz extension.

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