Hi, I'm so worried about my phone. I recently purchased a used OnePlus 6 2 weeks ago. It had Android 9 installed at that time. I heard about Oxygen Updater app, updated it to Android 10, then Android 11.1.1.1. within same day from the app.
That's when my frustration began, after the update 11.1.1.1.
My OnePlus 6 camera was working completely fine on Android 9/10 but 3-4 days after updating to Android 11.1.1.1., it started crashing. On 6-7th day it completely stopped working on stock Camera app.
It did not fall down at all or got pressed from anywhere anyhow. Be noted that I'm a very careful user.
Now when I click the Camera app, it opens the Camera with black screen and closes within two seconds. That's it, no response at all. It does not switches to front camera at all. If I select any other Camera Mode (Video/Portrait) on back cam it closes without any response.
I then checked camera operation in some apps:
1- Instagram: By default Front cam opens. Front cam operates fine here and captures pictures.
2- Whatsapp: By default Back cam opens. Back cam is unresponsive, neither lets switching to Front cam.
Then I downloaded "HD Camera" app from Play store. Running this app, back camera is loaded by default so, at first it gives "Serious Camera Error" and switching to front camera is unresponsive. I open Gallery images from within the app and then back to camera, I click on Front camera and it switches to front camera. Then I can click images/videos with Front camera. I then again try to switch to back camera and "Failed to HD camera. Camera may be in use by another application?" message appears. Hence, back camera does not works.
I also noticed that in Face Unlock settings it lets Front Camera work. It recognized my face and lets it unlock the phone fine.
Then, I googled How to unlock Engineering Mode in OnePlus 6 and tested camera working in Engineering Mode:
1- Rear camera testing FAILED/unresponsive. (This is lower camera on the back)
2- Second Rear camera testing PASSED/camera image appears. (This is upper camera on the back)
3- Front camera testing PASSED/camera image appears.
Things that I have tried multiple times to cure the issue:
1- clearing Cache of Camera app
2- clearing Storage of Camera app
3- wiping Cache from Boot menu
4- doing Factory reset 5 times
5- rolling back to Android 10, then 9 but the problem still remains
6- tried Gcam, same behavior
As far as I know it may be a software issue since the issue happened right after updating to Android 11. Before that everything was working completely fine.
I followed some posts in OnePlus community, found multiple other users having the same issue after the update.
Now, I'm gonna try installing each and every update from Android 9 to 10 one by one and check if the problem resolves.
My request to the community here is that I'm a newbie and need your support to Flash my phone correctly and see if any update may solve my problem.
Mobile fault video
