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1. #Apple usb chanrge for mac air serial number#
2. #Apple usb chanrge for mac air serial#
3. #Apple usb chanrge for mac air free#

The 1-Wire system is convenient here since the Mac can communicate with the Magsafe through the single adapter sense pin. The chip uses the 1-Wire protocol, which is a clever system for connecting low-speed devices through a single wire (plus ground).

#Apple usb chanrge for mac air serial#

It also provides the ID value to the Mac indicating the charger specifications and serial number. It switches the status LEDs on and off (that's the "dual channel switch" part). The tiny chip on the left is a DS2413 1-Wire Dual Channel Addressable Switch. Two identical LEDs are on the other side. In the middle are two LEDs, orange/red and green.

The circuit board inside the Magsafe connector is very small, as you can see below. The block of metal on the left is not magnetized, but is attracted by the strong magnet in the Mac's connector. The plastic pieces hold the pins in place. There is no data communication via the adapter sense pin with the charger unit itself.ĭisassembling the connector shows the spring-loaded " Pogo pins" that form the physical connection to the Mac. Only two wires - power and ground - go to the charger unit. The charger wires are soldered onto the back of this board. Removing the outer plastic shell reveals a block of soft waxy plastic, maybe polyethylene, that helps diffuse the light from the LEDs and protects the circuit underneath.Ĭutting through the soft plastic block reveals a circuit board, protected by a thin clear plastic coating. Also note that the middle adapter sense pin is much smaller than the pins, unlike the Magsafe 2. The connector below is an older Magsafe notice the slightly different shape compared to the Magsafe 2 above. I had a Magsafe cable that malfunctioned, burning the power pins as you can see in the photo below, so I figured I'd tear it down and see what's inside. The pins are arranged symmetrically, so the connector can be plugged in either way.

#Apple usb chanrge for mac air free#

The company announced a recall for certain two-prong plugs at the end of January because of what it said was a “very rare” risk of the adaptors breaking and giving the user an electric shock.Īpple also offers a free battery replacement program for certain iPhone 5 devices, sold between September 2012 and January 2013, which are affected by a problem with the battery suddenly discharging or not holding charge adequately.The pins of a Magsafe 2 connector. It’s the second hardware accessory recall for Apple in less than a month. All other eligible cable owners can request a replacement via Apple’s online replacement process.

#Apple usb chanrge for mac air serial number#

Whereas the new, redesigned cables include a serial number after that text - as per the below image:Īpple says MacBook owners who provided a valid mailing address during the product registration process or Apple Online Store purchase will automatically be sent a new cable by the end of February 2016. It notes that affected cables may also have been sold as standalone accessories, as well as being bundled with MacBooks, and these purchases will also be covered by the replacement program.Īffected cables have “Designed by Apple in California.

So not without the other C-word, controversy, too.Īpple is replacing affected USB-C charge cables free of charge with a new, redesigned version. The new USB-C port was only introduced by Apple to its MacBooks in March 2015, in a classic Cupertino convergence move that saw it combine multiple port functions - power, data input/output, accessories and display connection - into just the one USB-C port.

It’s not specifying the exact problem but says MacBooks using the affected cables may not charge or may only charge intermittently. In a note about the charge cable recall on its website Apple says a “limited number” of its USB-C charge cables for the MacBook, which were included with the laptop through June 2015 may fail “due to a design issue”. The affected MacBook charge cables were sold worldwide up to last summer. Apple is recalling certain MacBook USB-C charge cables because of a design flaw.