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Huawei enjoys 9 and turns on the camera flicker exit for repair
Machine model: Huawei enjoys 9
Malfunction: Turn on the camera flicker exit after the phone water damage.
Maintenance idea:water damage machine has three steps-cleaning,Measuring diode value and replacing related components.
Maintenance process:
Open the phone and find corrode near the front and rear Camera BTB connector. Then cleaning, installation retest, normal camera, fault repair and handover. A week later, I called and said it couldn’t be used again. After cleaning it with a local master, I used it again. A week later, I called and said it couldn’t be used again. The local master was desperate.
After receiving the machine, clean it again, and the test is useless. If the camera that comes with the system can’t detect Camera, or if any Camera is wrong,flicker exit,screen is black or frozen and Camera 23401 will be stuck. However, in camera beautification software, damaging one Camera will not affect the use of other Camera. I downloaded a beauty camera, opened it and found that Front Camera could be used normally.This model Rear Camera is a 2-in-1 model, with a large lens of 1300W as the main camera and a small lens of 200W as the auxiliary camera. For these two Camera BTB connector Measuring diode value, everything is normal.
Comparing the drawing of Xinzhizao Soft, it is found that there are two versions of this model, one is for Camera VCC through LDO MOSFET, the other is for Camera VCC directly, and this machine is for VCC directly.VCC was measured for each VCC pin of Camera during startup, and it was found that 2.8, 1.2 and 1.8 were all normal. Carefully clean Camera VCC,Wipe off all the places with corrode, or scrape out bright copper. Installation test is useless. Send an Camera, and install it after arrival. In the beauty camera, the former Rear Camera can be used normally, but the Rear Camera pixel is very low, and the 200W pixel sub-camera is working, while the 1300W main camera is not working. The train of thought was a little confused, so the main camera Rear Camera VCC short-circuit was invalid.Remove Camera BTB connector, rotate it for 180 degrees and install it again, which is invalid. After thinking about it for a long time, send an Camera BTB connector. After the arrival, replace it and kill it.
Maintenance summary:
Camera BTB connector has been cleaned up to be brighter than the new one, and Measuring diode value is normal, and it has been reinstalled in reverse, thinking it is very stable here, but it is still the problem here.
Huawei enjoys 9 and turns on the camera flicker exit for repair Figure 1.
Huawei enjoys 9 and turns on the camera flicker exit for repair Figure 2.
Huawei enjoys 9 and turns on the camera flicker exit for repair Figure 3.
