The memory IC to this device has been damaged. Replace it with same type and number. The component can be located close to its main system control IC, will look somewhat like this.
If you wish to get more details, check the site linked here.
http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by its left side bar,
or view it in Timeslide option.
on the screen i can't get to some of the icons what can i do about thet
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