Ambient Light and Proximity Sensor Board for OnePlus 12

Does the screen on your OnePlus 12 no longer turn off during calls, or does auto-brightness stop working? Often the cause is the ambient light and proximity sensor board. This replacement restores both functions.

Specifications

• Type: sensor board (light + proximity)
• Compatible: OnePlus 12 (PJD110 / CPH2573)
• Sensors: ambient light + proximity
• Connection: flex on motherboard
• Location: top near the earpiece
• Plug-and-play installation
• Condition: new

Symptoms of a defective part

• Screen stays on during calls
• Auto-brightness not working
• Brightness stuck at one level
• Wrong sensor readings in settings
• Error on sensor self-test

Installation

🟡 Medium · ~40 min · needed: heat gun, suction cup, plastic tool, Phillips PH00, spudger. Open the screen via heated edges, disconnect the battery and swap the sensor board at the top. Reconnect everything and test.

Frequently asked questions

Does the screen need to be replaced?
No, the sensor board is independent and can be replaced on its own.

Will face unlock work?
Face unlock relies mostly on the front camera; the proximity sensor handles screen-off during calls.

Is soldering needed?
No, plug-and-play.