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Cannot update maps by the latest GarminExpress 7.17.3.0

My nuvi 56 can no longer be updated by the latest GarminExpress (7.17.3.0). With previous versions I never had a problem (but then I update the device quite rarely). Everything seems fine at first, and it said the new data is too large to install to the internal storage of the device and need a microSD card no less than 8GB and no more than 32GB. So I inserted a 32GB one. But right after the install starts, the message popup and the update aborted:

"There was an error installing the update"

with out any detail. I tried everything I could:

  • Reboot the computer;
  • change to another computer;
  • Run GE as administrator;
  • Change USB cables;
  • switch USB ports;
  • tried SD card of different brands/size;
  • .....

Nothing works! Any solution?