This repair valid for APPLE MBP "MagSafe Power Adapter with "L-Type" Power Plug
This problem happens quite often, for APPLE "Mac Book Pro" users. In some cases the power supply plug is broken.
I fixed this problem myself (See pictures below). But, first some introduction how's plug looking inside:
Now time to repair.
Note: Be careful during the dissembling a plug.
Finally...
The problem has long time existed and discussed on APPLE Forum (Since mid 2010). However APPLE not yet react on many complains from their costumers.
Problem description:
The SD card reader slot on iMac/MBP has stopped picking up the SDHC cards. When insert a card, it fails to mount. This used to work fine, and still does if a card is inserted while booting up. But after it has been ejected, it will...