It´s not a firmware.Option B would be to re-program the gMux IC (which is simply a Lattice LFXP2 FPGA), with a custom firmware to disable the GPU switching functionality.
DeMux: A permanent fix for the MacBook Pro 2011 GPU - DosLab Electronics
A permanent fix to disable the defective dedicated AMD GPU on 2011 MacBook Pro models.doslabelectronics.com
I know brightness doesn’t work but it was better the other option. I was running sierra for a long time but the accessing smb shares took to long. High Sierra fixes those problem.
I was using the nvram fix for a while but since that doesn’t work well with high sierra because of sleep. I didn’t want to solder anymore wires.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
MBP 1,1-10,2 Permanently Disable 2011 15"/17" MacBook Pro Dedicated GPU - gMux IC Bypass
- Thread starter dosdude1
- Start date
- Sort by reaction score
Right above the fan, same 17" 2011 model (A1297). Did not work with or without of the 100pf capacitor, but worked first try with L2406 removed. No pictures any where, but luckily found a boardview for it, and a hint maybe use an hot air, almost broke it when removing it with regular iron.
Hi at all, can you show where is located the l2406 in a 15" macbook pro 2011? should be removed and reinserted with an hot air?Thank you
that link no longer works. any ideas to make the lattice see the programmer?
Last edited:
Yeh worked perfectly first time once I removed this.
Thanks for the help bud.
As for why to remove it, if you read further back in the thread i think it was mentioned about line voltages being pulled down by other components, removing this component stops the voltages being pulled down and effectively blocking the patch/programming from working.
Is it easy removing with hot air? I have one but haven't really used it and I don't wanna burn out the inductor. Can you give some pointers? I do t have hot tweezers
Thx
Trying 20.04. It works so good, though, logically, no brightness controls. Thanks.
Last edited:
Hi Mircea,I can ship one from Germany if you like, it even has the little "adapter" I've done for my MBP and how my update went few pages above.
I was waiting for the brightness control version, but it seems that will never come anymore
Cheers,
Mircea
I'm in the UK. All the programmers available here come from China and take two months, and that's before they charge me extra for customs fees and VAT. I had also previously bought the DeMux and DyingLight chips, before the recommended repair method changed, so I'm down a bit of money already. Luckily, dosdude has agreed to offer me a flashing key for this new method, in exchange for my previous purchases.
Do you still have your programmer with you in Germany, and would you be open to posting it to me, at my cost of postage? It would be a faster delivery, and much cheaper postage, and would get some more useful use out of the programmer, instead of me buying one too for one job.
Let me know if you'd be up for that,
Thanks a lot!
Do you know what diamond drivers you installed exactly? Having a similar issue and before I do everything else I want to try the new drivers as you did.