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Solution: iPhone 6 Display Temperature Fault After Turning On

We are going to fix an iPhone 6 device today. After turning on, the thermometer logo was shown on the screen, and "iPhone needs to cool down before you can use it" was reported. As shown in picture 17-13-1. How to repair this fault on iPhone 6? Let's check in the article!



1. Open and contract the WUXINJI circuit diagram, we use the regulated DC power supply to clamp the electricity for a test, we find the start current is normal, there is no leakage electricity or big current condition.

2. When we detect the thermistor, we find that the component is missing.

3. Apply some solder paste and use QUICK hot airstation to disassemble a thermistor with same value from a discarded iPhone motherboard.

4. Observe the welded thermistor under LED Stereo Microscope. As shown in picture 17-3-2.


5. Now the iPhone screen does not show thermometer fault.

Conclusion:

Thermometer fault is caused by the following situations:

When the thermistor is not missing, we can judge by measuring the resistance to ground of these circuits.The lower version iPhone can be solved by update.

WiFi leakage and other power leakage will also lead to thermometer fault.

If you need any support for professional cell phone repair, please visit www.vipfixphone.com

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