Hi. i boutght this (Late 11' MBP 13") item has less than a week of use since it arrived last friday 02-21, the Magsafe adapter stopped working normally on sunday Feb 23rd. The laptop was left on by saturday night (Feb 22nd) downloading an OS update and next day (sunday Feb 23rd) it showed like it was not connected. Didn't recognized the power adapter for a long while, then it did, then again when it was unplugged, didn't recognized it again. The laptop was off for about a day, then plugged up again last night (Feb 24th) and it recognized the power adapter, then unplugged it to check it was an isolated incident, but No, it did NOT recognized the Magsafe again, so the fail persists. Please I'd like your help about this. I already tried to reset de PRAM, SMC (but don't know if it has indeed reseted) and tried to update SMC and EFI but one of them told me that the software was incorrect for the hardware. Please help me, I want to completely Enjoy my Mac