Problems updating my Tevo Tornado!!!!

  • Hello!
    I am having problems updating my printer. the version is
    The printer board is MKS SGEN_L V1.0 (LPC 1768)
    The update using USB cable is giving an error of "time fail" and by SD card the printer doesn't recognise.
    I researched and it seems that the "bootloader" is missing. Can you help me fix this problem so that i can update Marlin?
    Thank you very much for your time!

  • @Hugo Cascarejo Have you resolved this issue yet?  if not please let me know I can help you troublshoot and hopefully resolve

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