Hi all, first time poster. I have an LG Optimus F6, around 1.5 months old, not rooted. The phone was working perfectly until today, when I received a multiple recipient text message from a friend. I'm running Android 4.1.2, and the stock Messaging app. There are very few apps on my phone; I like to run it as clean as possible.
The problem is, now my phone's MMS Notification Icon, in the upper left corner, simply won't go away. On the pulldown slider, I see a New MMS message from my friend. When I click it here, it opens up a blank text message (to Compose a new text message). Or, when I click "Clear" from the pulldown slider, the upper-left MMS Notification Icon disappears for second, then reappears.
Some more facts:
-The phone's physical LED light continues to flash too, to signal a new text has arrived.
-I've deleted all my text messages, and the MMS Notification Icon keeps reappearing in the upper left corner.
-I've cleared Data and Cache from the Messaging App. Didn't fix.
-I've reset the phone, powered on/off, and removed the battery. Didn't fix.
-I've set the "Validity Period" on Multimedia Messages to ONE HOUR. Didn't fix.
-Strangely, my friend's message was a multi-recipient text, not an MMS, but my phone seems to think it's an MMS.
-Worst of all, I can't turn my phone's screen off, because the MMS Notification immediately wakes up the phone again, and the LED flashes. My battery is getting eaten alive.
I called my service provider, who say it's not a server side issue. They want me to bring the phone in to one of their stores, to see if they can fix, but I thought I'd ask here first.
The only thing I can do is turn all text Notifications OFF, otherwise my phone's screen keeps lighting up with what it believes is the arrival of a new MMS. But text messages without any notifications are next to useless!
Can anyone help? This is obviously some kind of glitch and it's driving me nuts.