I have PC with Windows 8.1 Ent., 32-bit, and Saphir Media Tablet SMT-7-3G with android 4.2.2. Tab specs: Dual Core 1.6 GHz, 1GB, 16 GB internal memory, 3G.
Either MTP or PTP I cannot share files between PC and tab via USB, while Bluetooth is working fine.
1- When I connect PC and Tab via USB cable by selecting MTP in android windows shows "MID" in "This PC". by double clicking it shows "NAND FLASH" as a drive and it has nothing. By refreshing it shows files and folders. But files in these folders cannot be access and cannot be copy. By opening a file error shows:
Error 0x80004005: Unspecified Error
Another Error by copying a file
Cannot copy Unlimited1.jpg
The device has either stopped responding or has been disconnected.
2- By selecting PTP option in android windows shows MID with camera icon and it shows NAND FLASH but it does not show any file or folder.