Hi, About 2 years ago, my 15" MBP suffered the "Radeongate" video problem. At the time, Apple didn't offer a suitable solution for me. (Their repair offer was too expensive for me, and on some forums I had heard stories that Apple's repair may not last for long). So, when the problem happened with my MBP, I took it to an independent repair centre to have the dGPU replaced for £250. Although this was done by a reputable company, the repair didn't work out. Got the money refunded. But ever since then the MBP has been sitting on my shelf. Then Apple came out with their Repair Extension Program... which will expire end of Feb this year. I'm tempted to bring my machine in for a repair. But of course Apple will probably notice that the machine has been opened and worked on before. What's the worst case scenario, if Apple notice the machine has been worked on before? Would they charge me some sort of 'penalty' service charge? Or would they simply refuse warranty repair? (In which case I'd say: nothing to loose, and worth giving it a try).