GRKit
GRKit adds film looks, XPan and other crops, date stamps, and grain to RICOH GR III, GR IIIx, and GR IV.
- Add-on
- Alpha
- Medium brick risk
- Reversible
This project hasn't been claimed by its maintainer yet, so its details come from the community. Is it yours? Claim it
Fixes
- The Fn adjustments of a Film Look effect stay on screen after a half-press, where they showed and changed the native Image Control settings.
- GRKit loads again on every start with a new card, after an update, and with cards that macOS copied files to, where 1.3.1 and 1.3.2 could miss GRK, Film Look, or effects.
Before you start
- How hard is it?
- EasyCopy a file or use a web page. No extra software.
- What you need
- Comfort with the command line
- A computer
- An SD card or USB stick
- Can it break my device?
- Small chance of trouble, with a way to recover.
- Can I undo it?
- Yes. You can go back to the official software.
Did it work for you?
Did GRKit v1.3.3 work on your Ricoh GR III?
No reports yet for v1.3.3.
Did GRKit v1.3.3 work on your Ricoh GR IV?
No reports yet for v1.3.3.
One-tap reports from owners. Bricked reports are checked before they count.
Compatibility
Devices: Ricoh GR III, Ricoh GR IV.
No compatibility information yet.
Getting started
From the project's README ("Install"):
Pick your camera, modules, and effects on grkit.app, then either:
- Write to the SD card from Chrome or Edge on a computer. The site can also update or uninstall GRKit and add or remove modules and effects.
- Download GRKit.zip and follow the PDF guide inside it (GR III and GR IIIx, GR IV).
The first time only, hold MENU while you turn the camera on. To update from a ZIP, replace the SCRIPT folder on the card. Your settings stay in GRKIT. Formatting the card removes GRKit, so copy GRKIT to a computer first.
If GRK doesn't show up, check the FAQ on grkit.app. If that doesn't help, send GRKIT/REPORT.TXT, GRKIT/BOOT.TXT, and SCRIPT/GRKIT/INSTALL.ERR (if it exists) in a device report.
Risk and recovery
- Brick risk
- Medium
- Reversible
- Yes
- Requires opening the device
- No
From the project's README ("Install"):
Pick your camera, modules, and effects on grkit.app, then either:
- Write to the SD card from Chrome or Edge on a computer. The site can also update or uninstall GRKit and add or remove modules and effects.
- Download GRKit.zip and follow the PDF guide inside it (GR III and GR IIIx, GR IV).
The first time only, hold MENU while you turn the camera on. To update from a ZIP, replace the SCRIPT folder on the card. Your settings stay in GRKIT. Formatting the card removes GRKit, so copy GRKIT to a computer first.
If GRK doesn't show up, check the FAQ on grkit.app. If that doesn't help, send GRKIT/REPORT.TXT, GRKIT/BOOT.TXT, and SCRIPT/GRKIT/INSTALL.ERR (if it exists) in a device report.
Releases
| Version | Name | Released |
|---|---|---|
| v1.3.3 | GRKit v1.3.3Latest | 29 October 2026 |
| v1.3.2 | GRKit v1.3.2 | 29 October 2026 |
| v1.3.1 | GRKit v1.3.1 | 28 October 2026 |
| v1.3.0 | GRKit v1.3.0 | 27 October 2026 |
| v1.2.1 | GRKit v1.2.1 | 24 October 2026 |
| v1.2.0 | GRKit v1.2.0 | 22 October 2026 |
| v1.1.1 | GRKit v1.1.1 | 21 October 2026 |
| v1.1.0 | GRKit v1.1.0 | 20 October 2026 |
| v1.0.1 | GRKit v1.0.1 | 19 October 2026 |
| v1.0.0 | GRKit v1.0.0 | 19 October 2026 |
Credits, license and support
- License
- MIT