Unable to remove WP from Craasneto Acer Chromebook 314-4H-C739 even with SuzyQcable

Support General Device Support
1

System Details

  • Device: [ChromeOS board name]
  • OS: [ChromeOS, Linux, Windows]
  • Firmware Type: [Stock, RW_LEGACY, UEFI Full ROM]
  • Firmware Version: [As reported by the script]
  • Internal storage type: [SATA, NVMe, eMMC, UFS] (if applicable)

Summary of the Issue

[Briefly describe what is happening]

Steps to Reproduce

Expected Behavior

* Have Done the PP process
* Battery Disconnected
* Verfied that the SuzyQcable is functional by running ls /dev/ttyUSB*, they all show up.

Have tried running the following commands
echo “wp false” > /dev/ttyUSB0
echo “wp false atboot” > /dev/ttyUSB0
Run echo “ccd reset factory” > /dev/ttyUSB0

Even with root they don’t seem to change the WP status, still locked when running gsctool -a -I and crossystem wpsw_cur is still at 1

Have also tried connecting the USBA to another laptop and running the commands from it to the chromebook, no effect, WP still locked.

Does this laptop have a jumper on the motherboard that is missed in the documentation?.

GSC Debug Board v4.1.0 dec 19 2023

Thanks in advance for any help.

2

why would you disconnect the battery? that’s NOT part of the process, and causes the GSC to re-lock

3

Excuse my confusion, I now redid it with the battery connected and it flashed successfully, thank you for your work and have a nice day :slight_smile:

Thread closed.