Hello everyone,
I’ve encountered a few issues while using the MrChromebox script to flash firmware on my device and I would appreciate any help or advice. Below are the two main problems I’m facing:
Issue 1: Black Screen and Bricking After Flashing Full ROM
I used the MrChromebox script to flash the Full ROM and encountered the following issue:
- After flashing, the device shows a black screen on boot and does not start up.
- The device became bricked, and I couldn’t access any interface.
Today, I checked the updated firmware in the script and found that the firmware has been updated to 2025-04-30 version. I flashed this version again, but the black screen and bricking issue persists.
My device is a Poin2 Chromebook 11P (internal model foob360
, using Intel Gemini Lake N4120 CPU). I have tried flashing other versions of the Full ROM before, with the same result.
Issue 2: ACPI Issues with Touchscreen After Flashing Legacy ROM
After flashing the Legacy ROM using the script, the system boots up, but I’m experiencing ACPI issues with the touchscreen. Specifically:
- The system logs show
i2c_hid_acpi
errors, indicating problems with the ACPI configuration of the touchscreen. - The touchscreen is not recognized correctly and does not work at all.
I suspect that the issue might be due to the ACPI table being incomplete when using the Legacy ROM, preventing the touchscreen from being properly initialized.
Attachments
- I have backed up the original BIOS file from the device, which may be useful for analysis and comparison (the original BIOS file and the firmware version I flashed are attached).
- File 1: Original BIOS File (
backup rom
)
https://drive.google.com/file/d/12oaffBrYeACnzleQ6eY_DPJ6zLn0wAuP/view?usp=sharing - File 2: Latest Full ROM Firmware (2025-04-30 version)
https://www.mrchromebox.tech/files/firmware/full_rom/coreboot_edk2-foob360-mrchromebox_20250430.rom
Device Information
- Device Model: Poin2 Chromebook 11P
- Internal Model: foob360
- CPU: Intel Celeron N4120 (Gemini Lake)
- Firmware Version: 2025-04-30 Full ROM version (flashed)
Summary and Request for Help
- I would appreciate any solutions or suggestions regarding the black screen and bricking issue. Is this caused by firmware incompatibility or is there a need for a different configuration?
- For the ACPI issue with the touchscreen after flashing the Legacy ROM, are there any users who have experienced this, and can anyone provide a fix or patch?
Thank you so much for your help!
Please feel free to reach out if you need any further information or clarification. Thank you!