According to our customer's description, his iPhone 6S Plus has problem with compass and screen flip function fault. In this article, we'are going to fix it step by step. If you are a professional iPhone repairman, hope the article will help you!
Based on our experience, if the function of the compass is not normal, and the screen flip can not be used, this kind of fault is generally caused by damaged gyroscope chip or the chips on the connected SPI bus. As shown in picture 15-10-1. If the screen flip is abnormal, it will affect the function of the compass.
How to Fix it After diagnosis?
1. Disassemble the iPhone 6S Plus by opening toolkit, we have to replace a new gyroscope chip with QUICK 861DW hot air station at suitable temperature, you will also need to carefully take off it with a precision tweezers. However, it doesn't seem to be a problem of the gyroscope chip since the same problem still exists after that.
2. Remove the iPhone 6S Plus motherboard, then observe it under Trinocular Stereo Microscopemicroscope, it is found that there is corrosion trace around the iPhone 6s Plus compass chip. When we remove the compass, we find a spot is oxidized. As shown in picture 15-10-2.
3. Apply some Mechanic BGA solder paste on pad and then weld the original compass chip back, it still doesn't work.
4. Replace a new compass chip on the motherboard, finally the iPhone 6s Plus flip screen and compass function restores normal. (we estimate the compass chip is damaged by liquid, thus the screen flip function is also not normal).
5. Re-stall the iPhone to test , all the function works normally now!
More cell phone repair tutorials please read on www.vipfixphone.com
How to Fix it After diagnosis?
1. Disassemble the iPhone 6S Plus by opening toolkit, we have to replace a new gyroscope chip with QUICK 861DW hot air station at suitable temperature, you will also need to carefully take off it with a precision tweezers. However, it doesn't seem to be a problem of the gyroscope chip since the same problem still exists after that.
2. Remove the iPhone 6S Plus motherboard, then observe it under Trinocular Stereo Microscopemicroscope, it is found that there is corrosion trace around the iPhone 6s Plus compass chip. When we remove the compass, we find a spot is oxidized. As shown in picture 15-10-2.
3. Apply some Mechanic BGA solder paste on pad and then weld the original compass chip back, it still doesn't work.
4. Replace a new compass chip on the motherboard, finally the iPhone 6s Plus flip screen and compass function restores normal. (we estimate the compass chip is damaged by liquid, thus the screen flip function is also not normal).
5. Re-stall the iPhone to test , all the function works normally now!
More cell phone repair tutorials please read on www.vipfixphone.com
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