Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

Hello,

I am trying to update the MDK on my MityDSP L138 using MDK_2014-01-13. However somehow it's failed.
I follow how to reprogram dead board using mono in my ubuntu 16.04

but this is what i got

root@PI-computer:~/Documents/sfh_ubl_072111# mono sfh_OMAP-L138.exe -flash -v -p /dev/ttyUSB0 UBL_SPI_MEM.ais u-boot.bin
WARNING: The runtime version supported by this application is unavailable.
Using default runtime: v4.0.30319
-----------------------------------------------------
   TI Serial Flasher Host Program for OMAP-L138
   (C) 2010, Texas Instruments, Inc.
   Ver. 1.67
-----------------------------------------------------

      [TYPE] UBL and application image
       [UBL] UBL_SPI_MEM.ais
 [APP IMAGE] u-boot.bin
    [TARGET] OMAPL138
    [DEVICE] SPI_MEM

Attempting to connect to device /dev/ttyUSB0...
Press any key to end this program at any time.

(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(Serial Port): Read error! (The operation has timed out.)
(AIS Parse): Read invalid BOOTME string.
(AIS Parse): Boot aborted.
Booting SFT failed. Trying again (you may need to reset the target)...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): Read invalid BOOTME string.
(AIS Parse): Boot aborted.
Booting SFT failed. Trying again (you may need to reset the target)...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): Read invalid BOOTME string.
(AIS Parse): Boot aborted.
Booting SFT failed. Trying again (you may need to reset the target)...

How to solve this issue?

thanks