I downloaded the driver for LCD touch display (KeDei 3.5 inch SPI TFTLCD version 3.0 20015/12/1) from http://kedei.net/raspberry/v6_1/LCD_show_v6_1_3.tar.gz. Afterward I unpacked it

tar -xzvf LCD_show_v6_1_3.tar.gz on /home/pi/

and I followed the instruction in that link: http://osoyoo.com/2016/09/13/install-raspberry-pi-3-5-touch-screen-driver-for-raspbian-jessie/.

I tried to do it twice, the first time with Raspbian Stretch Lite + update + upgrade and disconnected from Internet and that is the error that I found:

pi@raspberrypi:~/LCD_show_v6_1_3 $ ./LCD35_v
E: Syntax error /etc/apt/apt.conf.d/99force-ipv4:2: Extra junk at end of file

Note: I had to prepare my microSD cards again because the Raspbian not response when I did ping to it.

The second time I tried with a fresh Raspbian Stretch Lite and that is the second error:

pi@raspberrypi:~/LCD_show_v6_1_3 $ ./LCD35_v
raspberrypi-kernel set on hold.

Try to open the file and check if APT syntax is correct.

Here is a post that may be helpful in your situation.

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