VIM4 not turning on

VIM4
1

Please describe your issue below:

Hi, we’ve now had 2 VIM4 computers fail in the same way, where suddenly they will begin turning off randomly until finally connecting the power supply does not turn on the system anymore.

Is there any recovery for us, with respect to what is saved on the computer, or any other power supply options we can explore, aside from the USB C connector which could be used as fallback in such a scenario?

2

Hello @mnissov

How you supply the power? Please use the official 24/30W PD adaptor to supply the power.

3

Hello @numbqq

We are using an official power supply. We even have a lab power supply available if there is need for more control of the input voltage/current.

Note, pressing the function key three times rapidly causing the light to blink. So the system is still reachable somehow.

How should we go about recovering the system from this state? Or at least recovering the data onboard.

4

Hello @mnissov

Which system you used?

5

Hi @numbqq

Sorry I’m not 100% sure what you mean by system. It’s a VIM4 running ubuntu 20.04.

6

You can boot into oowow by press FUNC + RESET and then backup your data in eMMC.

7

And for restoring the computer to be functioning as normal again?

8

Hello @mnissov

It depends on what’s going wrong with your system, but at least you may backup some data.

9

How should I proceed with respect to getting the computers back in working order?

10

Hi @numbqq

Update from our side:

  • We press the function key 3 times and it blinks red.
  • Holding function and pressing reset and it boots into oowow (usually)

The challenge is the computer is shutting down (while using an official power supply). We have been able to start dumping from emmc through oowow, but approx 2% through this process, the VIM4 will crash, evident by the screen glitching out and freezing, following by the computer shutting off.

How should we proceed?

11

Hello @mnissov

Do you have a chance to capture the full serial debug console log of your device?

12

Hi @numbqq

We have some FTDI chips, so I can try. However, the link you provided describes how to use this after booting into linux, is there anything we can do from oowow.

13

Please setup the serial debug console and capture the full booting logs of your system in eMMC, we need to check what’s going wrong.