# Change a Ricoh GR IV's shutdown screen

Custom scripts replace a camera’s shutdown image with a personal picture.

## Hardware
Ricoh GR IV, demonstrated firmware 1.11

Version-specific camera scripts replace the stock shutdown image on a Ricoh GR IV with a personalized picture.

## Shopping list

Preserve original files and verify backups before changing the shutdown image. A current retail camera may ship with firmware different from the demonstrated 1.11.

Quantities are for one build. Unless marked source-specified, they are planning quantities; confirm kit contents and the chosen configuration before ordering.

### 1 × RICOH GR IV, demonstrated firmware 1.11
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Camera being modified.
- Notes: Match camera and firmware; other GR bodies and firmware versions are separate targets.
- Destination: https://us.ricoh-imaging.com/products/gr-iv
- Match: Exact product; firmware must be checked separately
- Link review: Page checked; stock not assessed
- Evidence: Creator source
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

### 1 × FAT32 SD card
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Firmware, operating system or project storage.
- Notes: Source explicitly requires FAT32.
- Sourcing: No exact purchase link verified; confirm the model and requirements above before ordering.
- Evidence: Creator source
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

### 1 × SD card reader
- Requirement: Tool
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Prepare files and preserve backups.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

### 1 × Development computer
- Requirement: Tool
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Build, configure or flash the software.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

### 1 × Charged original camera battery
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Maintain stable power during the documented procedure.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

Source reviewed, not assembled or hands-on tested. A working product page does not confirm stock, firmware compatibility or a complete build.

## Setup
Unofficial firmware

## Coding tool
Codex

## How the agent helped
The creator credits Codex with firmware analysis, scripting, testing and documentation, and shows the modified shutdown image on the camera. This is separate from the StickS3 viewfinder project.

## Before you build
Model/firmware-specific modification requires verified backups and recovery planning. Distinct from the StickS3 remote-viewfinder project.

## Sources
- Original build: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-8f79d3b2973c34d916db32d50143ead2ab5a86eb8641dcfe1cb72df8c6496467
- Supporting source: https://github.com/radium-wang/ricoh-gr4-firmware-analysis-and-feature-expansion

Source reviewed 2026-11-04. Not hands-on tested.