New answers tagged magsafe
In short, you won't be able to prove it unless you had someone familiar enough with counterfeits to notice. If genuine, it is possible that the power supplies are built by different manufacturers, or, as you've noted, that they have been changed (indicated by the different style of Magsafe connectors) which could have resulted in changes internally to the ...
You are nearing the expected cycle count for a battery. According to Apple, your model of MacBook Pro is expected to last for 1000 cycles. You could try swapping the MagSafe charger, but I suspect that the battery is ready to be replaced. Apple Support - Determining battery cycle count
Absolutely no problem to change the cable! Any Apple adaptor cable with a similar connector since the last decade will do fine. Even the plugs from your iPad charger will work. In fact, you also can use a standard radio cable (sometimes called an 8-shaped power cable). You can find them anywhere, in shops for $2 but probably also attached to various ...
I had a similar problem on holiday. With the nearest store stocking Apple adaptors thousands of miles away, my face turned white. In a plain desperate attempt I touched the adaptor's end points with my tongue and felt there still was power coming out. The problem just became worse - it was not the adpator which was faulty but the Macbook! By accident I ...
I'd take a cloth or a Q-tip and carefully clean the pins on the MagSafe cable with isopropyl (rubbing) alcohol. Wait until the pins are dry before plugging the cable into your MacBook.
Unless the pins of the MagSafe that carry the power were physically stuck, the fault isn't something you could or should fix. Hopefully Apple's diagnosis is correct and you don't need a repair of the Mac instead of a repair of the adapter. You'll discover that in three days time unless you can test with another MagSafe adapter in the mean time.
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