Pixel 4xl- front camera & face unlock not working - Google Pixel 4 XL Questions & Answers

I teardown my 4xl and replace rear camera module. After assembling it again, rear camera worked fine, but front camera and faceid cannot work. My phone cannot detect front camera. It show black screen when flipping from rear to front camera.
WHAT I DID:
1. Factory reset -> not work
2. Flash various factory firmware-> not work
3. Changed another whole front camera + sensor module -> not work.
Please help.
Thanks.

kisirong2501 said:
I teardown my 4xl and replace rear camera module. After assembling it again, rear camera worked fine, but front camera and faceid cannot work. My phone cannot detect front camera. It show black screen when flipping from rear to front camera.
WHAT I DID:
1. Factory reset -> not work
2. Flash various factory firmware-> not work
3. Changed another whole front camera + sensor module -> not work.
Please help.
Thanks.
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Please don't post the same issue multiple times. If the front camera was working before your teardown and doesn't now, I'm not sure anyone can help you with what you did to it other than to retrace your steps.

Did you fix it? I have the same issue. I replaced the sensor module, but the front camera still doesn't work. The first owner of the phone changed the battery before me.

kisirong2501 said:
I teardown my 4xl and replace rear camera module. After assembling it again, rear camera worked fine, but front camera and faceid cannot work. My phone cannot detect front camera. It show black screen when flipping from rear to front camera.
WHAT I DID:
1. Factory reset -> not work
2. Flash various factory firmware-> not work
3. Changed another whole front camera + sensor module -> not work.
Please help.
Thanks.
Click to expand...
Click to collapse
Change these ic

mughaleazem said:
Change these ic
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Click to collapse
Could you say what particular IC is it ?

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I'm facing situation after screen replace..my wide camera and selfie camera not working..there is no option in camera to pass to wide camera..
MastermindPaul said:
I'm facing situation after screen replace..my wide camera and selfie camera not working..there is no option in camera to pass to wide camera..
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Hey
I am facing this situation too..
Pleasr update me if you slove the problem
You're missing 1 resistor near the front camera slot. It happened to me when I replaced the screen and I fixed it by replacing the lost resistor
Dave010 said:
You're missing 1 resistor near the front camera slot. It happened to me when I replaced the screen and I fixed it by replacing the lost resistor
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How you fix it? Can you upload image?
Dave010 said:
You're missing 1 resistor near the front camera slot. It happened to me when I replaced the screen and I fixed it by replacing the lost resistor
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How did you replace it?

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