upgrade wm6 from sd

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Hello.
In my qtek 2020 the sync connector is broken.
Is possible upgrade to wm6 from SD?
Sorry for my bad english.

Yes, it is possible, but prior to that you should have a header from your bootloader downloaded to the given SD card... and I guess you don't have it Unfortunately, bootloader, when pushed to flash from SD, is checking this header, and I've never found a way to overcome this.

So... you would first have it, and second you would make the flash image for yourself.

Why not resoldering your connector? I was soldering mine for 5 times already

regard for the fast reply.
My mobo is broken and it's impossible resoldering the connector.
i dont know the procedure to copy on the SD the the bootloader.....
the broken of 2020 sync connector is a common problem
if someone knows the procedure to solve the problem, please post it on this forum.

And how to make bootloader header ? Only via USB crandle (and data connector) ?

I have similiar problem as pamigianleo and wanna upgrade to WM6

Thank you

Unfortunately - yes, you have to do that by issuing a special command for bootloader - via mtty for example... in other words - no cable connection - no SD bootloader header

What do you mean by broken board? I know it's a common problem, as I said, I was resoldering mine 5 times till now I had broken pins, and was reconstructing them by hand...

Is possible write the bootloader on SD via bluetooth and activesync?
Also... read the bootloader from another 2020?

nope u cant ..it can only be written via USB..please post some pictures of ur Mobo so that we can figure out the solution (hopefully)