Windows 10: un able to log in my Lumia 540 error code:2 FBAPIErrorDomain how ca i fix it?

un able to log in my Lumia 540 error code:2 FBAPIErrorDomain how ca i fix it?

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Camera Error Code 0xA00F4246 (0xE8010001) on Lumia 540

how to fix Camera Error Code 0xA00F4246 (0xE8010001) on Lumia 540

 

Camera Error Code 0xA00F4246 (0xE8010014) on Lumia 540

Hello,

As per the description, you are experiencing issue with camera not working on Lumia 540 and giving error code: 0xA00F4246 (0xE8010014).

I certainly understand your concern.

In order to understand the issue more clearly, I would request you to kindly provide me with the following information.

1. Did you make any specific changes prior to this issue?
   
2. Which operating system is installed on Lumia 540? Is it Windows 10, Windows 8.1 or Windows 8?
   

Please provide us with the above information for any further assistance.

We will be glad to assist you.

Thank you.

 

Lumia 540 upgrade is showing an error code 0x800703f1

Finally, resolved the error code "0x800703f1" and installed Windows 10 in my new branded Lumia 540.

After a lot of searching for this error code, got an idea that error code is related to a registry entry which blocks the upgrade. Referred link: How to fix update Error Code 0x800703f1 on Windows 10?

Suggested solution was to format and install windows 10.

Searching for the answer "How to format Windows mobile" I got a solution that using "Windows Phone Recovery Tool" we can reset and reinstall the OS again in mobile.

So, downloaded "Windows Phone Recovery Tool" from the link: Download Windows Phone Recovery Tool by Microsoft

Install "Windows Phone Recovery Tool" in your machine and connect windows phone to the machine. Recovery tool will automatically identifies the mobile model and starts downloading the OS. (1.66 GB file will be downloaded). Once the download completes, the
tool will ask for confirmation and install the OS to mobile. Believe it will be a fresh install (not equivalent to Hard / Soft Reset). Post that it will show the setup steps to start with the OS. Now the OS is reinstalled.

Now follow the steps in the link that explains Windows 10 upgrade using "Upgrade Advisor" app (How to update your older Windows Phone to Windows 10 Mobile)

The above solution worked for me and upgraded my Lumia 540 to Windows 10.

Hope this might work for others.

Windows 10 is awesome.