The device does not turn on immediately when power is applied

[GHdevlog]

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu

Which version of system do you use? Please provide the version of the system here:

Ubuntu 22.04

Please describe your issue below:

At some point, the device no longer turns on immediately when power is applied.

Instead of turning on right away, the red LED stays lit.

To turn the device on, I always have to press the boot button once.

Otherwise, the device functions without any issues.

What methods can I try to resolve this?

[numbqq]

Hello @GHdevlog

You can disable this feature by the below commands:

sudo i2cset -f -y 6 0x18 0x25 0x01
sudo i2cset -f -y 6 0x18 0x21 0x00

Then unplug the power cable and replugin to check again.

[GHdevlog]

khadas@Khadas:~$ sudo i2cget -f -y 6 0x18 0x25
0x01
khadas@Khadas:~$ sudo i2cget -f -y 6 0x18 0x21
0x01

So applying “sudo i2cset -f -y 6 0x18 0x21 0x00” resolved the issue.

What variables do those two represent?

[numbqq]

Hello @GHdevlog

Please check this register description here: https://dl.khadas.com/products/vim4/tools/mcu/vim4-mcu-register-description-en-v1.0-230520.pdf