m92 shows empty (unmounted?) SD card
I used my 8GB SDHC card last time to update my boox to the 1.7 version. Today the update to the new 1.8 version didn't work, and I realized the SD card was not read correctly: when it is inserted, the boox switch to SD window, but an empty list is shown.
I tried with another SD cards, formatted and re-formatted, and with any kind of content other than the .zip update file...
some idea? do I have to think to hardware problems? may the last update be a coincidence?
the bed thing is that I cannot update to older or newer version without the SD , right?
thank you very much