@fp2andfp3-user
I don't know if it helps but I noticed this error output when trying to flash the tablet with another ROM. Right before it fails it outputs:
Search usb, timeout set as 3600000 ms
add@/devices/pci0000:00/0000:00:1d.7/usb2/2-5
add@/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0
add@/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/tty/ttyACM0
vid is 0e8d
device vid = 0e8d
pid is 0003
device pid = 0003
com portName is: /dev/ttyACM0
Total wait time = -1626951210.000000
USB port is obtained. path name(/dev/ttyACM0), port name(/dev/ttyACM0)
USB port detected: /dev/ttyACM0
BROM connected
Downloading & Connecting to DA...
connect DA end stage: 2, enable DRAM in 1st DA: 0
Failed to Connect DA: STATUS_BROM_CMD_SEND_DA_FAIL(-1073348605)
Disconnect!
BROM Exception! ( ERROR : STATUS_BROM_CMD_SEND_DA_FAIL (-1073348605) , MSP ERROE CODE : 0x00.
[HINT]:
)((ConnectDA,../../../flashtool/Conn/Connection.cpp,146))
I got this output by pressing the power button while the flash tool is attempting to connect.