[jpc0480]

Has anyone had this? I went out of town this past weekend, and while I was gone my phone went into lock mode? Several times throughout my trip I would try and wake my phone, only to have it ask me for a pin number?? So I went into settings and set one up and it still did it? However the pin that I set up in the settings was not working... Had to soft reset to get my phone to work again... Once I returned home, it has not done this? I noticed that it only happened while roaming? Is there a fix, or a workaround? Or does someone know this mysterious pin?