Upgrading Memory on MacBook Air 2011 11 inch Model

I know this is an old question but I want to add some information for reference.

This board can support a maximum of 4GB. It is possible to to replace the bga ram chips with hot air soldering. According to the BOM options list for this board it can be populated with HYNIX, SAMSUNG, MICRON or ELPIDA ram chips. They have to be of the same type and of the right type.

Before even considering this type of upgrade you will need experience of similar work or practice. You will also need a schematic of the logic board, boardview software and a board view file of the logic board, a hot air rework station, stencils for memory chips and solder paste or solder balls and flux.

I would also recommend having a micro soldering pencil and to use low melt solder. And a microscope makes it a lot easier. To my knowledge the configuration resistors are 0201 size (0.6mm x0.3mm).

In short: If you have the equipment and the skill it can be done.

Vikstrom - Keep in mind this is not a DIY type of project! I service Mac for a living and even I do dive in to this level of alteration.

Besides, the cost of the parts and getting someone with the needed tools to do it would be prohibitively expensive given what you can buy today for the same amount.

Dan - I agree that this isn't something most people do themself in the weekend. But with a keen eye and steady hands and a lot of practice this is possible. And I still think it's a lie to say that it can't be done...

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Alexandr's video shows the kind of procedure that is required. But it isn't the same logic board and therefore the type, and number of ram chips are different. And the location of the configuration resistors are different.

Are you sure the macbook air board shown in the initial post is using 2 rows of memory instead of one.. it's not the same model.