Facebook can’t be installed. Error code: -504 on Android. How to fix?

Trying to install Facebook app for Android many users encounter the following error:

Cant't install app
"Facebook" can't be installed. Try again, and if the problem continues, get help troubleshooting. (Error code: -504)

Here you can find the solution that worked for us.

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1. Go to Settings ? My device tab ? Language and input:

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Tap Language and change the system language. We switched to German:

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2. Go to Play Store and retry to install the Facebook app for Android.

We press INSTALLIEREN…

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And in a few seconds the app is installed. We see ‘Installiert’:

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Run the Facebook app and use it!

By the way, now you can switch back to your language. Most likely the Facebook app would work with English.

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