There are some possible conditions.
1. The fridge is in Artificial Intelligence(smart, fuzzy) mode.
2. Super Cool or Super Freezehas been selected.
3. The display panel is locked.
4.The fridge compartment temperature is turned off
5.The refrigerator is in holiday function.
If you can't set the temperature, you should first unlock the display panel, then check if the display is set one of these mode, then exit the mode, you can set the temperature. If it can't be set yet , please call service.
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