Embedded firmware audit
A firmware audit gives a clear view of technical risks before they become release problems. It focuses on architecture, maintainability, update strategy, diagnostics and the issues that can slow down the team.
What the audit looks for
The audit is designed to find practical risks: fragile state handling, unclear module boundaries, weak update flows, missing diagnostics and test gaps.
- Code structure, dependencies and state management.
- RTOS tasks, queues, priorities, timing and memory risks.
- Bootloader, OTA, rollback, versioning and release checks.
- Diagnostics, logging, fault recovery and maintainability.
What it includes
A prioritized view of the firmware areas that can block release or maintenance.
Concrete observations on modules, state, timing and dependencies.
Review of bootloader, OTA, rollback and production update strategy.
Next steps organized by impact, urgency and implementation effort.
Working method
- Collect repository, architecture notes, build instructions and known issues.
- Review code, update flow, diagnostics, timing and product constraints.
- Discuss findings with the team to validate context and priorities.
- Deliver a written report with risks, quick wins and recommended actions.
Related guides and pages
A smaller entry point when you need a fast first diagnosis.
Ongoing support after the audit.
TPM, TrustZone and secure enclaves in product architecture.
Frequently asked questions
Is source code required?
For a full audit, yes. A lighter audit can start from architecture, symptoms and release concerns.
Can the audit be remote?
Yes. It can be done remotely with repository access, documentation and technical sessions.
Do you rewrite the code during the audit?
The audit is primarily diagnostic. Implementation can follow as a separate step if needed.