[Galaxy Tab General] montecristo1:
My Samsung Galaxy Tab (Sprint) recently, unexpectedly started displaying this message. I did a google search and was amazed on how many fixes and issues they are for this type of issue. I will admit I have done most of them...which only slow down the messages versus constantly popping up. Many tablets and phones are or have experienced this issue. Many say it was an app, widget, a system bug or a virus that caused it. It is clearly that no clear answer is established or it all depends on what was the last thing you did before you got the message. Here are the "fixes" that I found. What I will do next is flash a rom instead. I have already done two hard resets- still pops up. Hope this helps someone out. I just cut and pasted the answers that people said it worked for them. Please add any that I may have left out.

possible fixes for "process android process acore has stopped unexpectedly" USE AT YOUR OWN RISK...

1)	Using Settings go to your manage applications, you will find some Contacts (Contact Storage 2.2 or Contacts) you can also do this with Titanium Backup under “Backup/Restore” tab). Click clear cache/wipe data. This will clear all your contacts (all your data) so make sure these are backed up.

2)	Install/use ClockWorkMod. First back up all your data TB is the choice. As I understand this will only be done once in the lifetime of the gtab. In CWM>advanced>choose “Partition SD Card”> choose 2048 for the first choice and 0 for the second choice. This will wipe your data so have it backed up beforehand.

3)	Depending on your recovery, you should try wiping cache, dalvik cache, and fixing permissions.

4)	If you can, go to /data/data/com.android.providers.contacts/ and move or rename the folder databases. The system will immediately rebuild the database and rewrite it back to that location and your process.acore should stop. (you'll need something like root explorer to do so...though you could adb it from your computer) (THIS ONE DID NOT WORKED FOR ME)

5)	clearing data in the email app

6)	menu>applications>manage applications>all>internet>clear cache>clear data.

7)	update firmware

8)	format your SD card (THIS WILL DELETE YOUR DATA)

9)	use one tap cache cleaner app- wiped out all cache

10)	start deleting your downloaded apps until the error message stop popping up

11)	turn on > reset > press all buttons while starting including reset > do this until you start without android.process.acore (I DON'T KNOW ABOUT THIS ONE-not for tablet)

12)	turned off the sync, deleted the data on the contact application

13)	menu->settings-> do factory reset at bottom

repower login with new gmail login & passwordmenu->settings-> data sync ->wait for circles to right of contacts, etc to stop spinning>go to market->downloads and reinstall apps

14)	(in settings->applications->manage applications), did a "clear data", "clear defaults", and "force stop" wherever applicable. Then I did a "clear data" and "force stop" to "package installer", "contacts", and "contacts storage" app. (MANY PEOPLE SAID THIS ONE DID THE TRICK)

15)	Facebook contacts being synced with a gmail contact. If they aren't synced they are fine but syncd with a Facebook contact causes the error. (THIS WAS A POPULAR FIX)

16)	Remove Google+ 2.0

17)	Cleared cache of contacts and calendar with titanium backup (MUST BE ROOTED)

18)	deleting the contacts DB directory (PEOPLE SAID THIS AFFECTED THEIR ABILITY TO USE EXCHANGE)

19)	used titanium backup and wiped the three contacts files, then presto back to normal

/data/data/com.android.providers.contacts/databases/

20) scan with an antivirus app