I’ve just had my VIM3 arrive and I’m very excited to get going, Except, after installing Ubuntu, I have extremely high contrast as default. I’ve attached an image below.
The whole screen is showing as if it’s green and pink and in a high contrast setting by default. No issue with screen (TV as monitor) or cables as I have tested other peices in the signal chain so must be VIM3, specifically Ubuntu (android worked fine).
Hi @Frank, it’s not my own firmware. I think it might be because ubuntu was running from within the sdcard, not sure though.
My next approach is to use my ubuntu laptop to upgrade the firmware vis usb C cable. I’m following the instructions here: https://docs.khadas.com/vim3/UpgradeViaUSBCable.html but when I get up to the point to boot VIM3 in upgrade mode and check it’s connected via usb, my ubuntu laptop doesn’t recognise it being connected. Do you know what I should do next?
EDIT: When installing the burning tool, I’m getting the all of the outputs the page expects, but also realise the Toneboard tool is intalled as well. Could this be an issue?
@matthewrockell The simplest way is into TST mode . Connect you board to PC with type-C port.Quickly press the function key three times in two seconds . you will see the blue led twinkle . When the flicker stops, you can burn the firmware directly.
Perhaps I could try to create a burning card from command line:
When I read through the instructions, it turns out there’s no u-boot files in the VIM3 area of the site. Is the option of a burning card not available yet?
Sorry, I’m sure I’m doing something wrong or not understanding instructions very well, but I’m really quite confused. I just want to try and get Ubuntu installed on the eMMC of my VIM3 and start playing.
I have checked my connections. I have my VIM3 connected to the computer by the usb-c port. I have pressed the function button three times quickly to try and enter upgrade mode. When I do this, the blue twinkles a few times and then the VIM restarts back into the pre-loaded android os. I run the command lsusb | grep Amlogic and get no output.
@matthewrockell If the blue led was twinkles .it mean the board try to enter upgrade mode . If it pre-loaded android os. It mean that you don’t connect to the PC . If you sure you connect it right .maybe you need to Replace the data line and try again.
You can burn the firmware into SD card and boot with it .
Hello, If I push the middle button(function) quickly three times immediately after powering the board, I am able to reliably get the VIM3 to enter update mode.
Maybe it is a timing issue with your presses.
I don’t count to three pushes, I just keep doing(within reason) it until it shows up in the tool.
Otherwise, when I boot using the SD card, that’s when I get the crazy display issue. Is there a way I can boot from the sd card, then from that version of ubuntu, upgrade the onboard emmc with the operating system so I’m not always booting from SD?
@matthewrockell Can you try with the original data line . Because the data line must have the function of data transmission.I’m not sure if you have this line.At the same time, you need to unplug your HDMI line.