It showing reset app error - RIM BlackBerry Curve 8520 Smartphone

Have a look here:
http://www.galaxys4forums.net/forum/4-new-member-introduction-site-assistance/1457-solved-error-491-cannot-download-update-nothing-google-play.html

Grts,
Bart

Contact the service center for more details.

For error code 523 solution,click the link below :---http://repairhelpcenter.blogspot.com/2012/01/app-error-523-shows-on-bb-9630.html
---------This will help.Thanks.

Hi there.
That error message generally shows up when the is an application that is installed on your phone that has gotten corrupted or isn't compatible with your device. the first suggestion that RIM suggests is to do a reset. This is done by pulling your battery out for afew seconds and putting it back in. If that doesn't help and you can still use your phone try deleting the most recently installed apps and resetting after each uninstall. If you cannot use your phone then you will have to reset it to factory default and reload the software. There are many methods to do this. Some however and easier than others.

Hi Akira,

This error can be caused by a few different things, including faulty third party software. Have you downloaded any apps lately?

Make sure you have BlackBerry Desktop Manager installed on your computer, then unplug the battery from your BB and make sure that it is not connected to the computer. Start App Loader, then plug the USB cable into your phone. Once the phone lights up, wait to see if it starts up and if the PIN appears on your computer (in App Loader). At that point, plug in your battery. The software should load, and you can remove the third party app. If you don't think it's an app causing the problem, you can try using the repair option in the Desktop Manager. Let me know how it goes.

If the games or apps were installed from third party software, re-install the games/apps. If its bundled games and apps from the phone then there are error in phone software. Reset your phone to factory setting

Hi, error 523 reset means a "System process died" You'll need to reload the entire handheld OS again.

1. Install the software from the CD (that you received with the device), or download it from the service provider.

2. Delete or rename the vendor.xml file, here: C:\Program Files\Common Files\Research In Motion\AppLoader (you're windows file options needs to be set to 'show system files', to see said file...

3. Open Desktop Manager (DM)...

4. Connect the phone

5. Doing this will force the pc to see the BlackBerry as new hardware, and thus force it to reload the Operating System (OS)...

6. During the process, select YES to do a backup...

7. The whole process should take about 30-45 minutes...

Take care

app error 523 blackberry verizon

I had this same problem it was from a third party application that I had downloaded. Go to blackberry.com, and select support and search your APP error it will walk you through a guide on getting it fixed--although your phone will reset back to default.

On the BlackBerry smartphone, the following error message appears after pressing the mute button, accessing an application, or performing a hard reset:
523 app. error. Reset.

To resolve this issue, the BlackBerry Device software will have to be reloaded.

Note: The BlackBerry smartphone will not show a Connected state in the BlackBerry Desktop Manager. Please proceed to open and run the Application Loader.