Lg model lmhm2017st is locked. how do I unlock it?

Here are the steps to remove the door cover from the door of your LG Microwave model LMHM2017ST:

1. Unplug the microwave from the power source.
2. Open the microwave door and locate the four screws on the inner edge of the door.
3. Use a Phillips screwdriver to remove the four screws.
4. Carefully separate the outer door panel from the inner door panel.
5. You will now see the door cover attached to the outer door panel.
6. Use a flathead screwdriver or plastic pry tool to gently pry the door cover off of the outer door panel. Start at one corner and work your way around the edge.
7. Once the door cover is removed, you can replace it with the brushed silver cover from the new door.
8. To reassemble the door, simply snap the new cover onto the outer door panel and then reattach the outer door panel to the inner door panel using the four screws you removed earlier.

Make sure to be careful when removing the door cover, as it can be fragile and may break if handled roughly.

touch pad needs replacing not sure if can replace look online might get lucky

A thermal protector on the magnetron may have opened. Normally, these reset within a few minutes. If you've had the oven off for more than an hour, and it's still lifeless, then you may have a bad connection somewhere. A defective magnetron will not cause an oven to be dead if the main fuse has been replaced - at least not immediately.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

bad door switch

As far as I am aware, you can reset the microwave entries with the STOP/CLEAR button. This is the only way to clear all entries on the oven.

a problem with the control card that controls the functioning of the microwave

If you have warranty use it asp, from the description the problem is in the keypad "membrane shorting" or the microprocessor control board is becoming intermittent, it will get to the point and stop functioning.

"Locked" meaning the buttons don't work/non-responsive (Child Safety Locked)? To Unlock/Disengage the Child Safety. Push and hold the "Clear/Off" button for 3 to 4 seconds. The Child Safety is disengaged - problem solved.

This is a built in safety feature called "Child Lock-Out" that allows you to lock or unlock the control panel to keep small children from manipulating the controls.

To lock/unlock, simply press and hold the CLEAR OFF button for 3 seconds.

If you have questions, please let me know. I hope this helps you.

"Locke" meaning the door? or locked meaning the buttons don't work? If it is the buttons then you have the child lock on. Push and hold the "Start" button for 4 to 5 seconds, and it will unlock.