I have an ET9000 and I recently observed the following.
I press & hold POWER button on my remote in order to go to deep standby. Then after some time I turn the box back on and all EPG has disappeared.
Please note I do not have an internal HDD, only an external USB HDD now so /media/hdd/ path does not exist on my box.
How can I prevent this and keep my EPG after deep standby?