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About alcheng3344

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    InsanelyMac Protégé
  1. alcheng3344

    Lenovo ThinkPad T420 with UEFI Only

    My Lenovo T420s is sierra,I have reinstall mojave on it,everything is perfect !! then someday I open apple maps ,it seem to be black screen.but I click "show all tabs". I can see the map thumbnail. Did anybody got the same problem ?