Camera (rear+front) and flash not working after back cover change - Huawei P20 Pro Questions & Answers

Hello everyone,
a friend dropped his P20 Pro a few days ago and his back cover got damaged. He now tried to change the back cover but since then the cameras (rear + front) as well as the flash (e.g. when trying to use it has flashlight) wont work anymore. What happens is that e.g. when he touches the camera icon, the app will start but closed immediately. It basically is just a short black flash of the app.
Factory Reset didn't help
Cleaning cache/etc of course didn't help either.
He already removed the whole camera unit from the motherboard, but everything seems fine and was connected fine.
Also it is weird because the front camera, rear camera and the flash all seem to have individual connectors/cables? But none of those work suddenly.
And the only cable that he disconnected when changing the back cover was the cable that connects the lenses of the rear camera.
Any ideas? :/

Related

Problem with proximity sensor please help!

Hello,
I bought a Nexus one brand new from Amazon.
I accidentally dropped it onto a concrete floor.
After I dropped it, the camera stopped working(the led flash would flash at random times) and every time I called the screen would shut off and would never turn back on(had to do battery pull).
The led flashing at random times was getting annoying, so I covered the back with electrical tape. As soon as I did this, I noticed everything started to work again - including the camera. So I cut little slits in the electrical tape for camera flash and camera lens and this is how I have been using it for the past few weeks.
But today, I dropped it again and the same problem is back. No amount of electrical tape seems to fix it. I might try again and tape more strongly.
I can live with a broken camera and since I covered the flash with electrical tape, the random flashes won't bother me.
But the phone screen going off during a call and not turning back on is a problem that i have to fix. I simply cannot battery pull and restart the phone every time i make a call. Also during the phone call, when the screen turns off, I have tried: raising the volume button, pressing the power button, and touching the trackball - nothing works to bring it back on.
I tried various market apps for disabling the proximity sensor but nothing works
I am on 2.3.4 stock ROM but I can easily root. Is there any hope or do I have to buy a new phone?
look at my posts, i posted a way to disable the sensors.
anyway you have to send it to RMA. I did it with mine with the same problem.
pinkster said:
look at my posts, i posted a way to disable the sensors.
anyway you have to send it to RMA. I did it with mine with the same problem.
Click to expand...
Click to collapse
there some scratches on it including a cracked camera lens.
i don't want them to send it back when its obvious that it was my fault.
you sure it would be covered in the 1 year warranty?
Just flash stock rom and recovery and send it. You can't loose anything.
If they refuse just tape flash led and disable sensors.
Enviado desde mi Transformer TF101 usando XDA Premium App

Flash Led Just Blinking

Android 5.1
Build Su 4tl-44
Camera app version 5.0.21.2
Flash led on my recently bought Droid Turbo stopped working.
It was OK for 5 days. At one night I tried to switch on the flash light to use it as a torch. At first it turned on and blinked three times then went off.
Then I tried again to switch on but the right led just blinked once and turned off. Left led do not have any response.
I switched on the camera and take a picture. Led behaviour was same (right led just blinked once for a short time then switch off while left had no response).
Then I changed the 'Flash' settings in camera from Auto to On and again tried to take a shot but the Led behaviour remains the same.
Any help in this regards would be appreciated...
After googling i found a solution that suggested that draining the battery completely and fully charge after that will solve the problem.
However, i tried this method twice but it did not solve the problem.
Moreover, i tried some typical things like uninstalling the updated camera app to factory.
Factory resetting the phone and clearing the cache from recovery.
But none of the tricks solved the problem...
Now Fingers crossed....
Solved
I had the same problem. It was strictly mechanical.
I removed back panel and clear from dust and it solves it. I recommend to replace 2 sided tape too. MOTO XT1254
Two taped
[/SIZE]
[email protected] said:
I had the same problem. It was strictly mechanical.
I removed back panel and clear from dust and it solves it. I recommend to replace 2 sided tape too. MOTO XT1254
Click to expand...
Click to collapse
The tape actually MUST be replaced because as you said, the flash is a piece connected to the back casing of the phone. If it's not securely connected the insides of the phone, the points that touch the flash board won't be touching consistently and you'll wind up having to take it apart again. You've got to go the extra mile and buy GOOD 2 sided tape as well.. The cheap stuff turns loose as soon as the temperature gets to high or to low. To many people bring their phones in because their fix stopped working.
While pressing both flash LEDs firmly turn on the torch

Portrait mode in stock camera broken after Pie update.

Does anyone else have a broken portrait mode in the stock camera after updating to Android 9? All mine shows is a stuck blurry image in the viewfinder, all other camera functions work fine. I did factory reset but it did not fix the issue.
I managed to fix the issue, took the phone apart and re-seated the camera module connectors. Now portrait mode works fine. Not sure why that worked as both connectors seemed well seated and both cameras worked in manual mode beforehand.

My Note 8 (N950F / DS) Got Wet - A few questions

It's supposed to be water resistant, but I've never dunked it intentionally under water. Bought this in 2017. Unfortunately, I had an accident and it fell inside a sink full of hot water (while I was taking care of a patient) and it stayed there for a minute or two.
What happened are the following:
Power button no longer works - It was a little wonky as it kept turning the screen on and popping up the camera. I tried to turn it off, but it kept turning back on.
Stock camera app - doesn't work anymore. whenever I try to activate the app, it just crashes.
Rear camera hardware - focusing is gone. Using another app (camera zoom fx) I can access it, but pics are blurry. It can't focus on images 12 feet away.
Front cam hardware - there was a mist that fogged the camera. but it seems to be working fine after.
Screen - the screen was relatively ok after the dunking. However, water got inside the S-pen port. I immediately removed it and started drying the phone for 48 hours. I tried to return the s-pen after, but it seemed to trigger something and the screen started flickering. it lasted for a day but it's now completely normal.
Aside from those, everything is fine with the phone. I managed an online backup to Samsung account and everything.
If you're still here, here are some of my questions. I appreciate all your help.
1. I've now turned it off for a complete drying. Now I can't turn it on. Is there a way to turn it on? Is a USB C jig available to do this?
2. I left some sensitive data in the phone *coughbootypicscough*, is there a way to access the memory and wipe it? or maybe factory reset the phone without turning it on?
3. Can the cameras be replaced / fixed?
Hoping for all our help.
maxram said:
It's supposed to be water resistant, but I've never dunked it intentionally under water. Bought this in 2017. Unfortunately, I had an accident and it fell inside a sink full of hot water (while I was taking care of a patient) and it stayed there for a minute or two.
What happened are the following:
Power button no longer works - It was a little wonky as it kept turning the screen on and popping up the camera. I tried to turn it off, but it kept turning back on.
Stock camera app - doesn't work anymore. whenever I try to activate the app, it just crashes.
Rear camera hardware - focusing is gone. Using another app (camera zoom fx) I can access it, but pics are blurry. It can't focus on images 12 feet away.
Front cam hardware - there was a mist that fogged the camera. but it seems to be working fine after.
Screen - the screen was relatively ok after the dunking. However, water got inside the S-pen port. I immediately removed it and started drying the phone for 48 hours. I tried to return the s-pen after, but it seemed to trigger something and the screen started flickering. it lasted for a day but it's now completely normal.
Aside from those, everything is fine with the phone. I managed an online backup to Samsung account and everything.
If you're still here, here are some of my questions. I appreciate all your help.
1. I've now turned it off for a complete drying. Now I can't turn it on. Is there a way to turn it on? Is a USB C jig available to do this?
2. I left some sensitive data in the phone *coughbootypicscough*, is there a way to access the memory and wipe it? or maybe factory reset the phone without turning it on?
3. Can the cameras be replaced / fixed?
Hoping for all our help.
Click to expand...
Click to collapse
The fact that water was hot made it easier to gain access to the inside of the phone and personally I'm going to say it's now a hardware issue and the phone is likely no good anymore.. If you're worried about certain pictures on the phone just destroy the phone so no one could possibly take parts out of it and try to use them. Smash it with a hammer, drive over it, you get the idea.. Just get another phone at this point the reason I know it's a hardware issue is because of what your camera did so the water made it past the seals mainly because it was hot and loosened the glue to get past it.
MrMike2182 said:
The fact that water was hot made it easier to gain access to the inside of the phone and personally I'm going to say it's now a hardware issue and the phone is likely no good anymore.. If you're worried about certain pictures on the phone just destroy the phone so no one could possibly take parts out of it and try to use them. Smash it with a hammer, drive over it, you get the idea.. Just get another phone at this point the reason I know it's a hardware issue is because of what your camera did so the water made it past the seals mainly because it was hot and loosened the glue to get past it.
Click to expand...
Click to collapse
it actually still works. I tried hard not to turn it off because the power button is broken. Last night, I fell asleep and forgot to charge it and battery drained and phone turned off.
It still charges but I can't turn it on because the power button is broken.
I was hoping if anyone knows if a USBC jig can help and turn it on for a bit or any other way to trigger download mode and then restart.
Try to hold Volume down + Bixby button and plug the cable in, it may be goes in download mode amd than you can reboot you phone. If not try only with Volume down and cable.
zyxw-androidiani said:
Try to hold Volume down + Bixby button and plug the cable in, it may be goes in download mode amd than you can reboot you phone. If not try only with Volume down and cable.
Click to expand...
Click to collapse
I'll try that again. For now, I'm placing the phone inside a box with desiccant to ensure that it dries completely. Hopefully, it restores some function to the powerbutton.
maxram said:
I'll try that again. For now, I'm placing the phone inside a box with desiccant to ensure that it dries completely. Hopefully, it restores some function to the powerbutton.
Click to expand...
Click to collapse
Try opening and removing the simcard tray while the phone rest in the box with desiccant. Hopefully can remove water vapors better and faster.
Sent from my SM-G985F using Tapatalk

Disabling Proximity sensor - Nokia 7 plus

Hi All,
I am using Nokia 7 plus for past 2 years. Andorid 10 with Nov security patch. Recently, my proximity sensor stopped working and I am not able to use phone any more (due to black screen during calls). I even root my phone and installed edxposed framework for disabling proximity sensor but no luck. Even sensor disabler not working for me. Any suggestions would be much helpful as I want to use this phone badly
I have same problem (stop working after lcd replace), try more solution, but at end i find one "working"... In Developer options enable QuckSettingsDeveloperTiles/SensorOff, this add Sensor tile to top pulldown QuckSettings menu, before call must you manually enable it, after call disable (because sensor off disable all sensors and also camera ;-)
k3dar7 said:
I have same problem (stop working after lcd replace), try more solution, but at end i find one "working"... In Developer options enable QuckSettingsDeveloperTiles/SensorOff, this add Sensor tile to top pulldown QuckSettings menu, before call must you manually enable it, after call disable (because sensor off disable all sensors and also camera ;-)
Click to expand...
Click to collapse
Yeah, I have been using it. Problematic when attending calls in Skype which wont work unless you switch again. Thanks anyway
In my experience, proximity sensors don't stop working, they just work all the time! Often there's a small rubber gasket which separates the UV LED from the sensor. Can be lost when replacing a screen - I did this myself on a Moto G. Screen would go black in a call and couldn't be unlocked. I found the gasket on the floor, replaced it and this fixed the problem. Replaced the screen on a Nokia 7 Plus recently, same problem. I couldn't find a missing gasket this time, but glued a small piece of rubber between sensor and LED and this fixed the issue. Had to experiment with the size of the rubber piece to get it working properly. I think some of the UV light bounces off the back of the screen and is picked up by the sensor , if this piece is missing. My $0.02 worth...
Guys, I am frustrated with proximity sensor of my Nokia 7 Plus, as soon as I call, screen goes black.
I could stop it by enabling Developer Mode and disabling sensors, but this disables all sensors not proximity, and my camera stopped working.
Can I just remove it from mother board? any way to disable only proximity sensor?
Thanks in advance.
MrNams said:
Guys, I am frustrated with proximity sensor of my Nokia 7 Plus, as soon as I call, screen goes black.
I could stop it by enabling Developer Mode and disabling sensors, but this disables all sensors not proximity, and my camera stopped working.
Can I just remove it from mother board? any way to disable only proximity sensor?
Thanks in advance.
Click to expand...
Click to collapse
If you've had the screen replaced, I think the rubber gasket separating the IR LED and sensor has been lost. Seems to be a common cause of this kind of problem. Cheers
Gastrocnemius said:
If you've had the screen replaced, I think the rubber gasket separating the IR LED and sensor has been lost. Seems to be a common cause of this kind of problem. Cheers
Click to expand...
Click to collapse
Many thanks for quick reply.
Yes, I replaced screen. I don't remember about rubber gasket, but now i have to open scree and fix it.
Can we just remove proximity sensor from board? What functions get affected?
MrNams said:
Many thanks for quick reply.
Yes, I replaced screen. I don't remember about rubber gasket, but now i have to open scree and fix it.
Can we just remove proximity sensor from board? What functions get affected?
Click to expand...
Click to collapse
I guess just the screen turning off during a call. But removing it may damage some other component, I guess. I also wonder if the screen stays off or on permanently if the sensor is removed. If you're taking the screen off anyway you could just try my fix of glueing a small piece of plastic or rubber between the sender and receiver, has worked for me and is still working. But this is just my opinion, all the best in whatever you decide to do. Cheers
Gastrocnemius said:
If you've had the screen replaced, I think the rubber gasket separating the IR LED and sensor has been lost. Seems to be a common cause of this kind of problem. Cheers
Click to expand...
Click to collapse
Yes, I replaced screen. I don't remember about rubber gasket, but now i have to open scree and fix it.
Can we just remove proximity sensor from board? What functions get affected?
Gastrocnemius said:
I guess just the screen turning off during a call. But removing it may damage some other component, I guess. I also wonder if the screen stays off or on permanently if the sensor is removed. If you're taking the screen off anyway you could just try my fix of glueing a small piece of plastic or rubber between the sender and receiver, has worked for me and is still working. But this is just my opinion, all the best in whatever you decide to do. Cheers
Click to expand...
Click to collapse
Ok Thanks, I shall try it.
One more question
Is there a way to disable only proximity sensor through OS/App? This will save my effort to remove it from board and possible damage to board.
Am working on another 7 Plus which has the gasket fitted to the proximity sensor and took some pictures so y'all can see what I'm talking about. First picture is of the gasket, second is the sensor without the gasket. Cheers
Just checked in to this forum for give Gastrocnemius a big "Thank you"!
We have a Nokia 7 Plus with the "normal" USB connection issue.
Send to repair to an independent repair station (so not Nokia), who offered a good price.
When it came back it looked fine, charging and fast charging was possible, we have been happy.
Until the first call... Black screen with dialing.
A short search showed: many problems after an update, looked like software related issue with no solution.
Shortly after the new USB connection was faulty again.
So the phone went into a drawer and replaced with a new Nokia.
Now my old Redmi 4 is too old and some for me important apps will not work with the "old" android.
I remembered the Nokia 7 plus and started to repair the USB board, also as a trial if i can handle mobile phone repairs for myself. Well, cheap USB board found, change successful... not! Broke the Display (stayed black after assembly, board from display got hot, probably cable broken).
Ok next step, new display, screen works and and charging repaired on first view.
Function check: black screen during call. Tried several proximity fix tools without success.
The app Phone Check clearly identifies as proximity sensor as "close" / near, no change.
The change to far came only when the display was way to the side. So, the sensor is working, but the function close far is not working.
After weeks I discovered this fred! Gasket? Which gasket! There is no gasket! Check with several videos on YT, yes, gasket identified!
So I tried the mentioned fix rubber band but was not able to get it working.
Then I looked for a gasket online and found one available for the Nokia 2 / TA 1007 on EBAY for a couple of Euros and ordered it for giving it a try.
I just assembled the gasket.... the 7 plus no works like new!
So I'm assuming that during the first USB-board change the gasket got lost and the check by the repair company was only performed for the charging and no more checks for the rest or they didn't care (ASUMING!)
Long story short:
If the gasket is missing you can use the one from the TA-1007!
It does look a little bit different than the above gasket but mine worked. No further assembly from the phone is required, just slip it over the sensor (make sure that the big hole is left, seen as microphone is up and sensor is up left [don't know how to describe better]).
Thanks again for the hind to the missing gasket.
Best regards from Munich,
Thorsten
(typos corrected)
Blackboie said:
Just checked in to this forum for give Gastrocnemius a big "Thank you"!
We have a Nokia 7 Plus with the "normal" USB connection issue.
Send to repair to an idependent repair station (so not Nokia), who offered a good price.
When it came back it looked fine, charging and fast charing was possible, we have been happy.
Until the first call... Black screen with dialing.
A short search showed: many problems after an update, looked like softwrae related issue with no sollution.
Shortly after the new USB connection was faulty again.
So the phone went into a drawer and replaced with a new Nokia.
Now my old redmi 4 is to old and some important apps wil not work with the "old" android.
I remembered the Nokia 7 plus and started to repair the USB board, also as a trial if i can handle mobile phone repairs for myself. Well, cheap USB board found, change sucsessful... not! Broke the Display (stayed black after assembly, board from display got hot, probably cable broken).
Ok next step, new display, yes, phone and charging repaired.
Funktion check: black screen during call. Tried proximity fix tools without sucess.
The app Phone Check clearly identifies as proximity sensor as "close" / near, no change.
The change to far came when the display was way to the side. So the sensor is working, but the function close far is not working.
After weeks I discovered this fred! Gasket? Which gasket! There is no gasket! Check with several videos on YT, yes, gasket identified!
So I tried the mentioned fix rubber band but was not able to get it working.
Than I looked for a gasket online and found one available for the Nokia 2 / TA 1007 on EBAY for a couple of Euros and orderet it for giving it a try.
I just assembled the gasket.... the 7 plus no works like new!
So I'm assuming that during the first USB-board change the gasket got lost and the check by the repair company was only performed for the charging and no more checks for the rest or they didn't care (ASUMING!)
Long story short:
If the gasket is missing you can use the one from the TA-1007!
It does look a little bit different than the above gasket but mine worked. No further assembly from the phone is required, just slip it over the sensor (make sure that the big hole is left, seen as microphone is up and sensor is up left [don't know how to discribe better]).
Thanks again for the hind to the missing gasket.
Best regards from Munich,
Thorsten
Click to expand...
Click to collapse
Glad to hear it worked for you Thorsten!

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