A couple of weeks after inserting a Movistar SIM card, my unlocked GSM Galaxy SII GT 19100 started squawking in an annoying, repetitive two tone (B flat-G?) that sounds like an alarm after it has been turned on for 20 or 30 minutes.
I had previously installed PREY, and it did detect a changed SIM card, which I set it to tolerate. This noise started at least a few days later. PREY does not have the device reported missing, so I don't think this is their alarm. But it certainly reduces usability because I can't hear anything when it goes off while I am talking to someone.
Going to Movistar is pointless because they really don't know what they are doing even with common popular brands here in Panama. Has anyone experienced this incredibly annoying squawk? If so, did you diagnose the problem?
This happens no matter the state of battery charge, no matter whether I am actually calling someone, and it can only be silenced by shutting the phone down. It hasn't happened while it is plugged in and charging.
Anyone have ANY IDEAS AT ALL??? I want to smash the thing when this happens! Thanks for any help.