Cannot get DVD door to opem - Apex Digital ADV3800 DVD Player/VCR

Hello
First reset the device to its factory defaults and see whether it help you. If there are so many external commands we have given to the system, and it have been over the capacity of its memory, it will hang up, like our computer system do. Resettign it to its factory settings, will clear out all the memory item to factory levels, and the set will work as if is new. To reset it, come to the 'Preference page' after entering into it 'Menu', select "Default" and enter the reset option. After resetting it, switch OFF the set and switch it ON again. If this doesn't help you, the loader mechanism of the syetem is damged and should be replaced. It is a plastic made mechanism, and wont cost more.OK.