Not booting

Hi
i try to change my motherboard on a hp 14 ca050sa but i see this screen at startup and nothing more happen when hitting keys. USB with chrome image is pluged in. I buy it on aliexpress

Starting netboot on snappy...

WARNING: can’t convert coreboot GPIOs, ’1id’ won’t be resampled at runtime

WARNING: can’t convert coreboot GPIOs, ‘power’ won’t be resampled at rutime
BIOS MMAP details:

IFD Base Offset 0x1000
IFD End Offset Ox f?f000
MMAP SizeOx f?7c000

MMAP StartOxf 082000


The GBB signature is at 0x2004040 and is: 24 47 42 42
ec_init(0): CrosEC protocol u3 supported (256, 256)
Google chromeOS EC driver is ready, id ’smappy_vl.1.5947-5e87552+’

Clearing the recovery request.
EC: Disabled 1id close event due to GBB override
backlight_update called but not implemented.

Waiting for link
Added USB disk 1.



do you have any clues?

Thanks