apple macbook pro a1286 recovery with a flash drive

Connect the magsafe connector.Īgain, let it sit plugged in for a minute or two. If all lights flash 5 times after pressing the battery test button, the battery is bad.

If the LED appears a normal green (but never goes orange), then the battery is not charging. Let that sit connected (with the LED on green) for 10 minutes or so, then try the power button. The connector LED should light up immediately. Then, unplug the adapter from power, wait about 10 minutes, then plug back in. Make sure the battery is installed, and the battery connection is secure. What color is the LED when you attach the connector? If not, hope you didn't pay much for it.You did not say anything about the LED on the magsafe connector! This was a MAJOR problem and issue with the 2011 MBP 15' and 17' computers. It's regrettable that you've been 'caught' by this, I'd put that on the seller for not informing you of the issue first. I see you 'just bought this' as a used item. And the replacement hardware (not sure if it's just a daughtercard or a complete motherboard) will eventually fail as did the original. There is no real hardware 'fix' for RadeonGate other than to replace the defective hardware. I'm not saying it is your problem, but it could very well be. You need to take time to 'read up' about this.

There's a long-running thread here on how to DISABLE the discrete graphics so the computer can continue to boot and run on the integrated graphics only (with some limitations):įorce 2011 MacBook Pro 8,2 with failed AMD GPU to ALWAYS use Intel integrated GPU (EFI variable fix) The MPB 15' and 17' models also have 'integrated' graphics built into the CPU that don't rely on the internal discrete graphics. RadeonGate can cause all sorts of difficulties because the discrete graphics no longer work properly.

Apple macbook pro a1286 recovery with a flash drive