Has anyone found a solution to the volume knob stops working at a random time?
It is the most annoying issue with these units and is driving me crazy
It is definitely a software problem because a reboot fixes it. The issue seems happening way more often with the latest roms and rebooting every 10 minutes or so is
My unit is a Pumpkin KLD2 RK3188 800x480 with a DVD. The exact model is item B015H7AY6K on amazon.com
When I bought it 4 months ago it came with v2.77 firmware. Some say this problem should be a MCU one so I recently installed the latest v2.81 firmware I found here but that didn't fix the issue. Currently I am running latest Malaysk from then end of March. Also, I don't think I am running MTCxposed (AFAIK it is off by default with the Malaysk ROM unless manually enabled?)
Initially I thought the problem most often happens when I use the Bluetooth to make or receive phone calls, but I just managed to reproduce it without any MCU audio switching.
With a freshly booted system, I just run Waze to navigate to my commute destination and in about 10 minutes the volume knob is gone until the next reboot. No need to run/touch anything else. It is that simple to reproduce.
I saw a bunch of people at the Russian forum and here have the same volume knob issue, but I didn't see a solution. Has anyone found what causes the issue and a solution on fixing it?