Using the child lock features in Samsung Microwave Oven(MC28M6055C)
Your microwave oven is fitted with a special Child lock program, which enables the oven to be “locked” so that children or anyone unfamiliar with it cannot operate it accidentally.
1. Press the Child Lock button for 3 second.
● The oven is locked (no functions can be selected).
● The display shows “L”. 
2. To unlock the oven, press the Child Lock button for 3 second. The oven can be used normally.
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