In the world of smartphones, screen light sensitivity issues can be quite bothersome for users. Recently, some customers have reported that after using the JCID (Diagnosable LCD) tool to diagnose their screens, the automatic light sensing function on their iPhone 13/13 Mini and iPhone 14/14 Plus devices is not working properly. To address this issue, we provide the following detailed repair guide.
The solution for the iPhone 13/13 Mini is relatively simple (you can refer to the video for guidance https://www.linkedin.com/feed/update/urn:li:activity:7348928375240998912/ ), while the iPhone 14/14 Plus requires a more complex process. Here, we provide a detailed repair guide for the iPhone 14/14 Plus for your reference.
🔴For 14 and 14plus ,it needs to write the original touch IC MtSN (data of the third line) before running diagnostics.
Step1:
> Open JCID Repair on the computer.
> Connect V1SE to the computer.
> Connect the phone to the computer (with the original screen attached).
Step2:
> Enter the Brushing interface from JCID Repair on the computer. > Locate the MtSN code.
Step3:
> Click on the MtSN code content area. > A message will appear: MtSN copied.
Step4:
> Connected the new diagnostic screen to the V1SE.
Step5:
> Enter Repair Fitting. > Disconnet. > Reading Data.
Step6:
> Display IC ( True tone ): No data or chip damaged.
Step7:
> Paste the copied MtSN code from Step3 into the first (Display IC(Truetone) and third line (Touch IC (MtSN)).
(Do not modify the second and fourth lines).
Step8:
> Only select the first and third lines. > Then click Write tick option.
Step9:
> Click the Write thrid-party screen.
Step10:
> Finished: Original color data writing completed.
Step11:
> Connected the diagnostic screen to the phone.
> Restart without connecting the ambient light sensor flex cable.
> Enter the diagnostic mode/interface (Restart and finish Repair)
> Finished and shows ‘Used’.
Step12:
> Installed the ambient light sensor flex cable.
> Restart the phone and then the light sensor works.
By following the steps above, you can effectively fix the light sensitivity issues on the iPhone 14/14 Plus after JCID diagnosis. For the iPhone 13/13 Mini, the key step is to write the Display IC True Tone Code; for the iPhone 14/14 Plus, the key steps are to write the Original Touch IC MtSN first and then run the JCID diagnosis. Ensure the correct order of operations and accurate data entry to effectively restore the light sensing function of your device.
We hope these methods can help you resolve the light sensitivity issues and restore your device to optimal performance. If the problem persists, it is recommended to contact a professional repair person for further inspection and repair.Any more information or needs, please contact us: sales@recoresolutions.com.