DevTerm R-01 module dead?

DevTerm
#1

After received my percel(2nd June), My DevTerm R-01 is work normally with USB-C charging and 18650 battery.
Last Saturday(5th June) I changed local timezone , and reboot the system with “reboot” command.
The shutdown process looks like process normally then I expect boot up system but system is not booting up and device started a resonant sound(not make it via speaker).
I once holded on switch button and power off it completely, and power on again, but this situation not changed.

I removed all parts from device and check one by one but cannot see any physical damage on system boards.
Then I rebuild one by one and make sure that resonant sound made by R-01 chip board itself.
When I removed the R-01 board from CPI v3.14 board and turn on the power, that sound not happen.
I don’t have other board like CM03, A-04/06 so cannot validate more.

Does anyone has a simmilar issue or have the knowledge to diagnotics this ?
I sent this issue to help account but not get any response yet.

Best.

#2

Try to reflash the microsd card to rule out the possibility of filesystem corruption.
Did you update the system?

#3

@pkr Thank you for your response. Forgot to add it but already try to reburn the OS image into MicroSD card but no change the situation. I also tried new microSD card, but this is also no change situation.

I keep using Clockworkpi os image, just exchange microSD card itself to 128GB SunDisk A2 v30 u3 class disk.(SDXC).

#4

Once I recieved email response from support but no recovery yet with their suggestion.

Maybe I luckyly get paper weight .

sad…