I recently started getting “Download unsuccessful” errors on my Motorola Droid RAZR whenever I tried to upgrade or download an app using Google Play. This seems to be a common error for the entire line of Android devices. Luckily, the fix was easy for me. If you’re experiencing the same problem, give these steps a try.
1. Open Settings.
2. Select Applications.
3. Select Manage Applications.
4. Tap the All tab, then scroll down and select Google Play Store.
5. Select Clear cache.
6. Back out of the screen and select Download Manager (May also be listed as “Downloads”).
7. Select Clear data.
8. Also clear data for Google Services Framework, Google Apps, Google Talk, and Checkin Service. Some users are reporting they had to clear data for the Browser app as well. You may not see all of these apps listed on your particular phone.
See if downloading from the Google Play works now.
Of course, this works with any Android device (Droid RAZR, Samsung Galaxy S, etc.)