Fix Fault Samsung

How do you replace the film on the inner door of a Samsung microwave?

I smelt all mastic burning and a noise like a plate cracking! The oven and grill still works better t microwave doesn't?

Some keys on the keypad like start and autostart (1min increments) do not work.. door closes okay.. but light stays on in the microwave. help - need to make the kids breakfast in the AM

over past few weeks, keypad has becoming increasingly dysfunctional - starting with numbers on left side, then more keypad numbers, now stop button not working. tried calling sears, which told me the ... more