Hello everybody and sorry to not speak your language, i'm french ! I own a E3115, it worked very nice until today. I was doing a POIwarner lite upgrade and then windows said "usb device not recognize" and then " if problem persists change device"... so if windows says so ! The screen stays red on the logo medion gopal, and touching the 'o' does nothing. By starting the device pressing -volume and hard reset it appears a test menu. everything is ok less the gps. i think it is the memory flash, but don't know what to do... ... ... i search a lot in all forums but my problem (i'm not alone in this case) has no response. thank you for the whole job you done here, and awaiting suggestions. Thanks ! you can use german to answer, i use google translation.