EC recovery issue

[Kyungtae Kim]

Hello, 

I'm struggling to recover my Chrombook ACER spin 713 (codename: voxel). 

My chromebook got stuck and doesn't show anything after flashing an EC rom that doesn't seem to work properly. 

To recover, I connected to a Linux host machine with suzyq, and tried to flash clean EC firmware from the host machine. But "no XML overlay for board voxel" error arose. When I used its boardname "volteer" instead of codename "voxel", it shows "host/device sync failed" error. 

Worse, after I accidentally reset EC using "F3/ + power" keys, it does not even allow me to issue any commands via /dev/ttyUSB2. 

So any help would be greatly appreciated. Thank you. 

Thanks,

Kyungtae 

[Kyungtae Kim]

I share the log messages here. 

~/chromiumos/src/scripts $ flash_ec --board=voxel --image=../platform/ec/build/voxel/ec.bin
INFO: Using ccd_cr50.
INFO: Using ec image : ../platform/ec/build/voxel/ec.bin
INFO: Flashing chip npcx_uut.
INFO: Using NPCX image : ../platform/ec/build/voxel/chip/npcx/spiflashfw/npcx_monitor.bin
INFO: Using: NPCX UART Update Tool
INFO: ec UART pty : /dev/pts/3
INFO: Using CCD uut.
INFO: Using CCD uut.
INFO: Loading monitor binary.
Port /dev/pts/3 Opened
Performing a Host/Device synchronization check...
Host/Device synchronization failed, error = 2, fail count = 1
Host/Device synchronization failed, error = 2, fail count = 2
Host/Device synchronization failed, error = 2, fail count = 3
ERROR: Failed to load monitor binary.
INFO: Restoring servo settings...

[Sage, Russ]

Voxel is the model, volteer is the board

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