MTP - could not find new file in mtp storage on PC

MTP - could not find new file in mtp storage on PC

1. Check DB file whether it's include.

adb root
adb pull /data/data/com.android.providers.media/databases/external.db external.db

2. parse the db file to xls file with db2xls.py:

python db2xls.py external.db

3. if the new file doesn't exit in DB, check the notify for mediaprovider

4. if it's normal in DB, check usb protocol