What problem does it solve? Diagnosing a dead or malfunctioning Raspberry Pi is hard because symptoms like a missing green LED or a rainbow screen can stem from power, storage, EEPROM, or component-level faults. This Skill guides an interactive diagnostic session that eliminates the largest failure categories first, so users avoid wasted tangents and reach a root cause systematically. ## Core Features & Use Cases - Top-Down Elimination Workflow: Works through power, boot signs, storage, core system, peripherals, and the software boundary in order, asking one bisecting question at a time. - Board-Level Reference Data: Fetches test points, voltage maps, PMIC data, and board photos from rpi.dpetzel.info via a sitemap helper script, plus local references for LED codes, boot sequences, and model-specific failure modes (Pi 3 PMIC, LAN9514, Pi 5 rpiboot recovery). - Session Logging & Equipment Awareness: Maintains a resumable rpi-troubleshoot-log.md checklist and tailors measurement suggestions to the user's available tools listed in equipment.md. - Use Case: A user's Pi 3B+ shows a red LED but never boots. The Skill reads their existing repair notes, walks them through measuring PP8 and PP9 with exact probe locations, and identifies a shorted MxL7704 PMIC as the cause. ## Quick Start Ask the agent to help diagnose your Raspberry Pi that won't boot, describing the model and exactly what LED or display behavior you observe.
