Installing/recovering firmware with external programmer

Requirements:

  • Additional Laptop/PC to run commands
  • 8 pin test clip with adaptor
  • CH341A USB programmer
  • PH0 screwdriver

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Place the Star LabTop Mk IV on a soft protected surface to avoid any possible scratching of the anodized finish.
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1. Remove the 10x outer short Phillips screws from the backplate.
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2. Remove the 2x inner centre longer Phillips screw from the backplate.
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3. Carefully remove the backplate.
Please note: The speakers may require carefully prizing away from the backplate. Check whilst lifting the backplate on the bottom left and right corners, to avoid damaging the speaker cables/connectors.

4. Next, place the test clip adaptor onto CH341A, ensuring the corresponding pin number and soccet are alligned.
Pin number 1 is on the top left of the adaptor, it fits into the top left of the primary soccets.
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4.1. Secure in place by pulling lever down on CH341A USB.
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5. Attach the test clip to the adaptor. The red line must be alligned with pin number 1 to ensure it is the correct way up.
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6. Locate the SOIC on the main board.
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7. There is a small dot in the top right corner, indicating pin number 1. Pin 1 must allign with the red wire on the test clip.
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7.1. Carefully attach the test clip to the SOIC ensuring the red wire lines up with Pin 1
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7.2. The red wire should now be in the top right position, corresponding to pin 1.
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8. Connect CH341A USB to additional Laptop/PC and open Terminal



9. To perform the recovery, install flashrom with the below command:

sudo apt install flashrom

10. Download the relevant Firmware file

Lite Mk II

wget https:<span class="comment">//github.com/StarLabsLtd/firmware/raw/master/I2/AMI/1.4.0/Original/1.4.0.rom -o firmware.bin</span>

Lite Mk III

wget https:<span class="comment">//github.com/StarLabsLtd/firmware/raw/master/I3/AMI/1.4.0/Original/1.4.0.rom -O firmware.bin</span>

LabTop Mk III

wget https:<span class="comment">//github.com/StarLabsLtd/firmware/raw/master/L3/AMI/2.0.0/Original/2.0.0.rom -O firmware.bin</span>

LabTop Mk IV (AMI)

wget https:<span class="comment">//github.com/StarLabsLtd/firmware/raw/master/L4/AMI/2.3.0/Original/2.3.0.rom -O firmware.bin</span>

LabTop Mk IV (coreboot)

wget https:<span class="comment">//github.com/StarLabsLtd/firmware/raw/master/L4/coreboot/1/Original/1.rom -O firmware.bin</span>

11. Finally run:

sudo flashrom -p ch341a_spi -w firmware.bin
Mar 8, 2021

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