[Help] Google Play (Error Code:-504)

Good day!

I'm using a device running in Android 5.1 (with MediaTek - MT6592m).

I am encountering Error Code:-504 on "SOME" apps and games when downloading them on playstore.
When I try to download the apk file of those apps and games to install, it results to "Application not installed".
BUT those apps and games should work fine on Android 5.1 ...

Is there any definite solution to this?

My co-unit users, find a way on how to install them.
They use Lucky Patcher and choose to install those apps and games as "system app".
The pain there is that, why do we need to root just to install supposedly normal apk.

Hope someone could explain or give solution to this.

Thank you very much!


Regards,
engr.rrwjr

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