1. Create a directory '_BFX_Att_Data_' in the USB disk.
2. Place AttDaemon.apk and ServerURL.txt in '_BFX_Att_Data_'.
3. ServerURL.txt is used to provide the URL of Management Server.
4. While plugging the USB disk into the box, the paths will be
   - /storage/sdcard3/_BFX_Att_Data_/AttDaemon.apk
   - /storage/sdcard3/_BFX_Att_Data_/ServerURL.txt
   ps. It is case intensitive.
5. For unexpected case to reset the ATT procedure and factory reset.
   Place a file named 'RESET_ATT' in '_BFX_Att_Data_'.
   - /storage/sdcard3/_BFX_Att_Data_/AttDaemon.apk
   - /storage/sdcard3/_BFX_Att_Data_/ServerURL.txt
   - /storage/sdcard3/_BFX_Att_Data_/RESET_ATT
   Insert the USB disk and wait for the factory reset dialog.
   You can remove the USB disk while seeing the factory reset dialog.
   If you don't remove the USB disk, the box will factory reset again and again.
   
   