Aporte original por: Harley Middleton ,
STEP 1: ISOLATE THE PROBLEM IMMEDIATELY As I said earlier, the error message “Unfortunately, com.sec.imsservice has stopped” can be caused by either a pre-installed app or downloaded one. So, to isolate the problem, you need to boot your Samsung Galaxy S5 in safe mode to temporarily disable all third-party apps. Turn the device off. Press and hold the Power key. When ‘Samsung Galaxy S5’ appears on the screen, release the Power key. Immediately after releasing the Power key, press and hold the Volume down key. Continue to hold the Volume down key until the device finishes restarting. Safe mode will display in the bottom left corner of the screen. Release the Volume down key when you see Safe Mode. STEP 2: DISABLE / UNINSTALL THIRD-PARTY MESSENGERS If the error message doesn’t pop up while the phone is in safe mode, it means that one of your downloaded apps caused the problem. More often instant messaging apps are the primary cause of this problem, so find them and disable or uninstall them before you boot the phone in normal mode. The purpose of this procedure is find which one is the culprit but apparently if you uninstalled all suspected apps, then you wouldn’t really know the specific app. If you’re really curious to know, I suggest you boot the phone normally and disable or uninstall suspected apps one after another until the error message won’t pop up anymore. STEP 3: CLEAR THE CACHE AND DATA If the error message still pops up even in safe mode, then none of your third-party apps is causing the problem. More often, when this problem happens and it’s not a third-party app that caused it, it’s the Contacts app or the IMS service itself. Galaxy S5 owners who have encountered this problem reported clearing the cache and the data of both the Contacts app and the IMS service will fix the problem. So, here’s how you do it… From any Home screen, tap Apps. Tap Settings. Scroll to ‘APPLICATIONS,’ then tap Application manager. Swipe right to the ALL screen. Scroll to and tap Contacts. Tap Clear cache button. Tap Clear data button, then OK. Now find com.sec.imsservice and tap on it. Tap Clear cache button. Tap Clear data button, then OK. The error should have disappeared by now, however, if it still kept popping up, then the last step will take care of it. STEP 4: MASTER RESET If all else fails, there’s no other option but to backup all your data and perform master reset to give your phone a fresh start. After all, you just updated it to Lollipop. It’s the best time to set it up again and make it like new. Turn off the device. Press and hold the following three buttons at the same time: Volume Up key, Home key, and Power key. When the phone vibrates, release the Power key but continue to press and hold the Volume Up key and the Home key. When the Android System Recovery screen appears, release the Volume Up and Home keys. Press the Volume down key several times key to highlight ‘wipe data / factory reset.’ Press Power button to select. Press the Volume down key until ‘Yes — delete all user data’ is highlighted. Press Power button to select and start the master reset. When the master reset is complete, ‘Reboot system now’ is highlighted. Press the Power key to restart the device.