Asus CX3402CVA UEFI Firmware install issue

Support
1

System Details

  • Device: MARASOV-UERT (CX3402CVA)
  • OS: ChromeOS
  • Firmware Type: Stock & RW_Legacy
  • Firmware Version: Google_Marasov.14505.884.0
  • Internal storage type: UFS

Summary of the Issue

I tried to install the Full UEFI Firmware via a SuzyQ but when I connected it, it was not detected by the Laptop or a different Linux device. ls /dev/ttyUSB* gives No such file or directory on both and in dmesg -w and in lsusb nothing shows up.

CCD is enabled and gsctool -a -I confirms it. I did test my DIY SuzyQ with a multimeter and everything seams fine VCC/VBUS has 5V, the resistors are in the correct place and are 56K Ohm and 22K Ohm.

I have attached pictures of my SuzyQ cable and the laptop insides. Circled in red is what I think is the H1 security chip and next to it I do see two extremely tiny (finger tip for scale) and are labeled JRST 2401 and JRST 2301.

Image link: https://imgur.com/a/pVXTVXt

2

the cable is the problem, full stop.

nothing on the device itself will prevent the ttyUSB devices from appearing on the host, it’s a cable problem