Holo Backup does not restore app data

[crimson089]

Hi, I recently backed up my galaxy tab's app data & device data which produced a 240mb backup.adb file on the backups folder. When I finally did a factory reset and restored it, nothing is restored. There's a prompt appeared on my tab like, "Restore starting..." then suddenly "Restore ended". Tried to restored it 5 times but to no avail. I think I followed everything correctly during back up. My tab was set to mtp while it is set with usb debugging mode and desktop backup password. I really don't know what to do now, losing all my app data is very difficult to bear. I hope someone can help me : (