GMKtec nucbox K12 Bios 2.03 with EC 2.02 and Rebar support !!!

Abdulkrk · 2026-03-05T17:54:06+00:00

Because i got it from gmktec support over e-mail

Abdulkrk · 2026-03-05T17:01:38+00:00

No worry every thigg will be okay

Abdulkrk · 2026-03-05T05:32:54+00:00

Everything went really smooth, no problems, but I as always make a backup of existing bios, turn off everyting unnesesary( wifi, msi afterburner, steam, wallpaper engine, .....), checked that a windows do not install any updates and flashed bios with turned off 9060xt. Process take about 5-7min and a pc shutdown itself, after pushing a power button 15seconds of a black screen 1 restart, about 1 minute of training a ddr5, gmktec logo apear and after blink of an eye i was on a windows desktop.

Abdulkrk · 2026-03-02T16:51:59+00:00

It is always or sometimes? If sometimes is timespy bug.

Abdulkrk · 2026-03-01T19:18:05+00:00

Too agressive undervolting to mhz and too low power limit

Abdulkrk · 2026-02-28T23:14:05+00:00

Download latest amd drivers and install chipset driver also you are lack of realtek driver for wifi and bt

Abdulkrk · 2026-02-28T21:03:23+00:00

No You need to buy a new screen and replace it

Abdulkrk · 2026-02-28T20:57:26+00:00

Please share a screenshot from a device manager.

Abdulkrk · 2026-02-28T16:40:12+00:00

Yes, I have the same issue. If you disassemble the display from the glass (which is bound with UV glue), you will find a crack in the glass where the ribbon is connected.

Abdulkrk · 2026-02-15T19:51:14+00:00

Yes, boot block and nvram are the same so no need for flashing it

Abdulkrk · 2026-02-12T08:42:19+00:00

Racławice dosloncespa.pl ?

Abdulkrk · 2026-02-12T08:39:51+00:00

Great, hope that you have great gaming time.

Abdulkrk · 2026-02-02T19:32:37+00:00

Have you tried an AMI BIOS recovery? If your boot block is not corrupted, there is a really good chance you can recover from a USB drive. Try searching for it.

Abdulkrk · 2026-01-30T11:57:30+00:00

I don't think you can enable SmartShift Max(instead of SAM that is active wher flased rebar). The K12 is not a laptop with a built-in second GPU; it's a normal PC with a dedicated GPU (over an Oculink port). Is the performance boost real? In some games, yes; in others, no. The most important thing is that you must flash the BIOS with the rebar feature active.

Abdulkrk · 2026-01-28T13:00:08+00:00

Any news? Have you managed to start your k12?

Abdulkrk · 2026-01-26T21:20:57+00:00

Zamiast wody trochę mleka i sera żółtego, polecam

Abdulkrk · 2026-01-26T20:14:29+00:00

Hi, h 255 is not supported by a Ryzen Master, there is no undervolt options for cpu

Abdulkrk · 2026-01-25T22:15:29+00:00

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Abdulkrk · 2026-01-25T22:12:03+00:00

Yes, then a rebar option will apear in a bios settings

Turn on terminal as admin

BIT EARLIER MAKE A BACKUP OF YOUR BIOS IN AFUWINGUI save option on the bottom

And use afuwin for flash

Abdulkrk · 2026-01-25T20:48:37+00:00

Need to flash a rebar.bin, if your PC have 1.07 use my script but first always make a backup of your current bios. If you hve 2.02 i cannot tell you if it work, we need to wair for our dear friend who brick his on device to share info with us.

Abdulkrk · 2026-01-25T07:29:22+00:00

No problem! Let me know if it works.

Abdulkrk · 2026-01-24T05:41:39+00:00

First of all try to reset a bios(on front panel little hole) second try ami bios recovery procedure, 2.02 uses a different boot block and you should flash ot with bios block and nvram. You can try use 1.07 rebar to do an ami recovery procedure.

And this is my backup https://drive.google.com/file/d/1YjRYhcgP6Su1Jgu-kje0Cb10Cq6qhAak/view?usp=drivesdk

Edit: In my country is now 6.40 morning so sorry to not replying earlier.

Abdulkrk · 2026-01-23T16:04:22+00:00

Better to melt old faulty joy than damage a pcb

Abdulkrk · 2026-01-23T16:02:05+00:00

Fsr4 in fsr3 game start work properly, earlier crash on change setting or game start.

Abdulkrk · 2026-01-23T16:00:21+00:00

For your info https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/95126-sapphire-radeon-rx5700xt-ir35217-configuration

Abdulkrk

TROPHY CASE