MiniBook dead after EC update

Hello,

I’ve tried to update the EC firmware to turn the fan off (found in other topic). Just to realise afterwards that this file was for 8100 systems. I have a N4100 system. The result is that the laptop won’t start at all. The only thing it does now is when I keep the power button pressed for 15+ seconds, the blue light at the keyboard starts flashing until I release the power button.

I’ve already found the 4100 European EC.bin on indiegogo and flashed the EC (GIGADEVICE 25Q80CSIG 3v3) with the use of a CH341a programmer -> no luck. Laptop still dead.
I’ve also flashed the BIOS (GIGADEVICE 25LB64CVIG 1.8V) with the file for 4100 found here
-> Laptop still dead.

How is it possible that the laptop is still not working after flashing both EC.bin and BIOS.bin?
What more can I do? Any suggestions are much appriciated.

Generally,we don’t recommend users to flash the BIOS file on their own, since this may cause permanent hardware damage

Probably you have hardware damage.
Contact service@chuwi.com

You would expect that, when official files are put online on the manufacturer website/forum, you can use them without instant problems. They even provide a link to a tutorial with it. The real problem is that files are offered without specifically mentioning for which system they are made, which indicates to me that they are generic… which they are clearly not.

I’ve already contacted the service department. They are out of business until February 20 because of the Corona virus.
So I hoped to find a solution here.

cmiiw
as far i know, using usb ch431 for my 4745G,
i am flash using bios from official installer(extracted bios bin file), and laptop still dead.
you must flash “dumped bios” file from healty device with same spec.

I’m hoping someone has a N4100 system and dumps of the EC, and maybe BIOS. But I guess that’s wishful thinking. I’ll have to wait for the guys of support to return.

Too bad the community around Chuwi products is so small. I can’t get my problem resolved and Chuwi support seems non-existant at the moment. So I’m stuck with a brick.

I shouldn’t have ignored all the negative feedback on the forum, and indiegogo website. My ignorance kicked me in the bu** :’)

I don’t think community is small, maybe nobody else have the same problem with you. Have you tried booting with usb stick containing either EC or BIOS?

Not possible. The laptop doesn’t turn on anymore. Looking at videos on YouTube, I wonder if my unit was bad from the beginning… When I wanted to power on the unit, I had to keep the power button pressed for 5 seconds. If I look at the videos, those units turn on after only a short press.