MTP USB 無法辨識

 

很久沒有用PC(Win7, 64bit)連接手機Nexus 4,

記得之前一接上去充電, 手機有時會一直被喚醒,

但至少我的電腦內有顯示Nexus 4而且可讀取內容檔案.

如今卻只在右下方顯示MTP USB裝置   X失敗,

而裝置管理員也出現MTP USB (黃色三角型),

用了很多方法, 最後只有改註冊表這招有效:

unplug phone
open up the registry editor
regedit
navigate to
HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Class > {EEC5AD98-8080-425F-922A-DABF3DE3F69A}
if you see a string called Upperfilters
right click on {EEC5AD98-8080-425F-922A-DABF3DE3F69A} on the left side and export if (so you have a backup)
delete the Upperfilters string
plug phone back in

重新掃描硬體變更. 解決!