Anyone Know How to Mod Gaming Keyboard Firmware ??? - Overclock.net - An Overclocking Community

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Anyone Know How to Mod Gaming Keyboard Firmware ???

 
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post #1 of 5 (permalink) Old 11-06-2018, 02:03 AM - Thread Starter
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Anyone Know How to Mod Gaming Keyboard Firmware ???

Greetz
It's been decades since I did any work in Assembly and almost a decade since I last used Modbin to customize CMOS/BIOS but now I find myself in need of a serious refresher or at least a wake up call. I just bought a Logitech G910 mechanical gaming keyboard and I love it... except for one little thing I absolutely HATE! I don't want to get into why I need to do this (to avoid tangential distraction) but I need to permanently turn off the cycling of the backlit key LEDs.. Default from the factory it behaves like some kind of Rainbow Wave and while that might attract attention on some salesroom floor it is annoying beyond belief on the desktop.

Yes, i can turn it off temporarily with the LGS software from Logitech but I want... no, I NEED to turn this off so it never happens ever again even if it means snipping a leg or a trace. Yeah, it's THAT annoying. Any help graciously appreciated. To be clear I jst want a simple pastel shade (light blue or green would be ok) on all the keys , all the time.

Thanks in advance

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post #2 of 5 (permalink) Old 11-07-2018, 02:58 AM - Thread Starter
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Just an FTR but back in DOS days I routinely entered the firmware of most peripherals with DEBUG and did many hot swaps of BIOS chips for reprogramming. I just have no experience doing that with USB connected devices which is why I'm asking here. Any clues to how this is accomplished greatly appreciated.

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post #3 of 5 (permalink) Old 11-07-2018, 04:23 AM
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Well the firmware is on one of the chips on keyboard itself. Often these chips may be written and locked. Really depends what chip and how protective the manufacturer is. Maybe they use a LED controller separately then you could play with that to control it yourself and cut it away from the main chip's control.
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post #4 of 5 (permalink) Old 11-08-2018, 10:28 AM - Thread Starter
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Thanks JackCY, it may come to that. I've just bought it less than a week ago and have yet to hear back from Logitech but my plan is to take the software approach until that dead ends. Failing in that means deep hardware work and that for me is last resort. I think it has to be something literally as simple as a flipped single bit.

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post #5 of 5 (permalink) Old 11-24-2018, 08:02 PM - Thread Starter
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Update - After zero response from Logitech and not much help here (or anywhere else) I've decided to bite the bullet. I found a set of Linux tools called "firmware_mod_kit" and have begun exploring it's capabilities on an older boxen until I get proficient with it.

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