We’re used to impressive soldering work here at Hackaday, and we’ve seen our share of wiring direct to the balls on an upturned BGA chip. has brought back the brightness with a clever BGA reworking hack that gains access to a brightness control line present on the Intel BD82HM65 Platform Controller Hub chip but not used in the Macbook. The community have produced fresh FPGA code to revive a dead Mac on its Intel GPU, but at the expense of losing brightness control. The Intel processor also has a GPU, and Apple use a pile of logic in an FPGA to switch at will between them. This should mean game over for the computer, but surprisingly salvation is offered by its having not one but two GPUs on board. On some 2011 Macbook Pro models, there is a tendency for the Radeon GPU to fail.
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