- Jan 16, 2023
I get error at: update.exe bulkcmd fastboot
usbReadFile len=512,ret=-5 error_msg=libusb0-dll:err [submit_async] submitting request failed, win error: A device attached to the system is not functioning.
[AmlUsbRom]Err:return len=-1 < strLenBusy 11
ERR: AmlUsbBulkCmd failed!
That response is the expected response to "update bulkcmd fastboot". After running the command, check if the usb connection has actually successfully changed to a fastboot connection.
If the fastboot device is not shown, try immediately executing "update bulkcmd fastboot" again. Sometimes it takes another try. If the fastboot device is shown, proceed on to whatever fastboot commands.