iPhone 4 Light Problem Repairing Solutions are available in the following article. Also you will find iPhone 4 Led Not Working Ways and Jumpers information in the diagrams further in this post. If your cell phone is having one of these faults check these diagrams out and do the solutions step by step.
In iPhone 4 Light Problem can occur because of the faulty Lights IC or it’s bad connection to the Cell Phone’s PCBA Motherboard. So first you should clean iPhone 4 Light IC Ways and Motherboard of the Mobile Phone. You Can Use any cleaning liquid for this purpose like CTC or any other you prefer. If you are certain that the bad connection is not the reason for your Mobile Phone’s fault, then you can replace the Lights IC with a new one.
Please Note that we will edit these solutions or add new ones if found in this page at any time in the future. So feel free to come back any time on this page to stay up to date.
Here Are iPhone 4 Led Lights Ways Problem Solutions. Please study these diagrams very carefully before you start repairing.

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Note: Every repairing solution posted here is tested by at least one member of our team. Use the information available here at Your Own Risk. We are not responsible if any harm comes to your device during the repairing process.