Auto-Brightness not working

What did I do wrong or what could it be since Auto-Brightness is not working after I did screen replacement carefully on iPhone 13 Pro? I did follow turtorial on Youtube and did exactly everything the same like they did on the video.
Appreciate all the help, thank you.

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Hi, this is a symptom of the display and front sensors being paired to the logic board and replacing them will disable True Tone and autobrightness. Did you transfer the front assembly from the original display to the new one?

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@guard3 Hi,

I transfered the front sensor from the original screen to the new one. Everything is working just fine except Auto-Brightness. I guess Auto-Brightness has nothing to do with True Tone since I am using VISE programmer to transfer the True Tone to the new screen.

Could it be that I messed up the Ambient Light Sensor since I didnt use heat before I took the sensor off? Thanks.

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