my-keyboard-keymaps/gmmk/pro/iso/readme.md

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# GMMK PRO (ISO)
A tenkeyless 75% keyboard made and sold by Glorious LLC. Equipped with the STM32 ARM Cortex-M4 microcontroller, with support for rotary encoders and three additional layouts. [More info at Glorious](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
* Keyboard Maintainer: [GloriousThrall](https://github.com/GloriousThrall)
* Hardware Supported: GMMK Pro
* Hardware Availability: [GloriousPCGaming.com](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
Make example for this keyboard (after setting up your build environment):
make gmmk/pro/iso:default
Flashing example for this keyboard:
make gmmk/pro/iso:default:flash
To reset the board into bootloader mode, do one of the following:
* Hold the Reset switch mounted on the bottom side of the PCB while connecting the USB cable
* Hold the Escape key while connecting the USB cable (also erases persistent settings)
* Fn+Backspace will reset the board to bootloader mode if you have flashed the default QMK keymap
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
## Case Screw Replacements
Many users report stripped case screws when disassembling the board.
The stock case screws are:
* Thread: M2
* Thread length: ~5 mm
* Head diameter: ~3.8 mm
* Head counterbore diameter: ~4.0 mm
* Head counterbore depth: ~1.9 mm
Most M2x5mm screws should fit fine, although it's best to ensure that the screw head will fit inside the counterbore.
For reference, [this hex socket head screw](https://www.mcmaster.com/91292A005/) from McMaster-Carr should fit nearly flush (head will protrude above the counterbore by ~0.1 mm).