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Message d'origine par : Eric Andersen ,


SMC reset is a good suggestion as well as attempting to run the Mac “sans battery”.   I would also check the magsafe plug and socket on the Mac.  The pins on the magsafe are spring loaded to provide good contact in the socket.  Are the pins straight and even?  Try a cotton swab with a little alcohol to clean the pins and the socket on the Mac.  Failing all that, take your Mac to the Apple store and ask if you can put their charger on your Mac.  You may have a bad charger…..