Friday, June 28, 2019

applications - Error -504 on appliation installation


Yes. I've read all other questions regarding this problem. Like this one:
Error 504 when downloading apps from Play Store?

It's the same problem as this one but with more background information and an other app:
How to fix installation error -504?


The details:
My device is an Ulefone Be Touch 2 running Android 5.0.


My connection is perfect. To be sure I tried different networks, among them are 3G, 4G and wifi on ADSL, VDSL, cable and fiber. I've also used Tor and 3 different VPN providers in 3 countries on 2 continents. Let's say I ruled the network out.



  • A single app does not install: OpenKeychain.

  • Currently I have 126 apps installed.

  • It does not install via desktop browser > play store > install button.

  • I have enough free space (40GB). The app is 7MB.


  • Re-adding Google account and clearing caches did not work.

  • Even a complete device wipe and re-install didn't work.

  • Downloaded the apk and tried manual installation, same error.


I also own a Nexus 7 (2013 wifi) and the app installs fine on that device.




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