wow and it doesn't let you disable this behaviour? must be so annoying

I got a new microwave with some annoying child lock feature. We have no children. I looked in the manual and there was a way to turn it off, it was some weird combination of holding buttons down but it worked just fine and my brand new (as of last year) microwave will happily let me open it with time remaining.

Im lucky enough to own an old microwave that has a simple rotary dial for the timer.

I was able to disable this lock on mine by entering some super cryptic sequence of key presses and holding buttons.

It’s like the up up down down left right left right B A B A start of microwave lock codes.

Except you don’t get extra lives. You just get to pull out your food before it explodes into a massive molten mushroom cloud of spatter.

'round these parts the microwaves have gone back to how my grandma's works. One wheel for wattage, one wheel is an egg timer that you can even change while it runs down.
Peak.

IDK my drawer microwave is new last month and this works fine, I just tried it. You can't set the time or start again without opening it, but so long as you open and close it, you can continue no problem.

My microwave is the other way around, the door can always be opened. And if you have the timer set, it will stay lit up and spinning, even with the door open.

So OP's method wouldn't work for me. I got scared the first time, but I think the magnetron turns off when the door is opened... but I haven't tried testing that theory.

Mine is less than a year old and doesn't have a child lock.