Well it appears to be a hit or miss thing apparently because I have owned 5 different ROG laptops ranging from the GTX8 series all the way to the 10 series and other than the first model I had that had an issue with blowing out the KB leds when you flashed the bios requiring it be sent in for a new board, all of them worked as advertised, even my G751JT-TH71 I have flashed 5 bios revisions without any issues, I think alot of what you read in the forums is also alot of non-technical consumers doing things, and breaking them.
By the way, if you’d rather simply have ASUS handle that part of the equation for you, you can score a virtually equivalent configuration (chipset and design evolutions notwithstanding) in the G751JT-DH72 for $1750-still $250 less than the G750JX we reviewed. That’s a small sacrifice in our book, especially when an SSD is so easily added thereafter. So what’s with the lower price then? Well, apart from the age difference, it’s the storage: the G750JX featured both a 1 TB storage drive and a 256 GB SSD, while the G751JT-CH71 drops the SSD. The CPU and RAM remain virtually equivalent, while the battery has migrated from external to internal and enjoyed a 100 mAh bump in the process (from 5900 to 6000 mAh). For starters, we’ve moved all the way from the 700M series to the 900M series-a leap which clearly ought to pay off in spades in terms of GPU performance. Expect a review on the G-Sync derivative very soon!) This is the previously released version, one that I am told will continue to sell for the foreseeable future and one that will come at a lower overall price than the G-Sync enabled model. (Editor's Note: This is NOT the recent G-Sync version of the ASUS G751 notebook that was announced at Computex.