Legacy firmware and software modernization

When a product still works but its software can no longer be changed safely, the first goal is to regain control: understand current behavior, make builds and tests repeatable, reduce risk and plan evolution without disrupting operations.

Scope to agree for your project

From the need to verification

  1. A problem to unblock

    Symptoms, logs and a reproducible test to focus the debugging work.

  2. A decision to review

    Goals and constraints to compare options and define an initial engagement.

  3. A project to recover

    Available repositories, builds and documentation to reconstruct a verifiable baseline.

How we can help

Initial recovery

Collect repositories, builds, binaries, logs, schematics and procedures to establish a verifiable starting point.

Analysis and stabilization

Map modules, dependencies, flows and risks, then add focused fixes, logging and regression tests.

Porting and migration

Move between MCUs, RTOSs, Linux BSPs, libraries, toolchains or frameworks with compatibility and rollback considered early.

How we work

  1. Available material and constraints

    Review available material, necessary access and product-continuity constraints.

  2. System review

    Assess current behavior, build, dependencies and the highest-risk areas.

  3. Stabilization and migration

    Define stabilization, test and migration steps that can be verified, avoiding unjustified rewrites.

  4. Delivery and handover

    Deliver code, documentation and an evolution or handover plan.

A new idea or an existing project? Tell us where you are starting from.

The service in detail

Open a topic to explore activities, technical choices and scope.

When an existing codebase needs attention

A legacy project does not automatically need a rewrite. The work starts from what still works, the material actually available and the product constraints, then identifies what should be stabilized, replaced or migrated.

  • Firmware or software inherited from suppliers, developers or teams no longer available.
  • Non-repeatable builds, obsolete dependencies, undocumented toolchains or manual release procedures.
  • Recurring defects and risky changes because tests, logs or an architecture map are missing.
  • Porting to supported MCUs, RTOSs, embedded Linux BSPs, libraries, graphical frameworks or toolchains.
Documentation and handover
Documentation and handover
Build and release procedures, architecture, interfaces and a maintenance plan for an internal team or the next supplier.

Frequently asked questions

Do we need to have all source code?

No, but available material, access and rights to use it need to be made clear early. Depending on the case, work can begin from repositories, binaries, documentation, logs, schematics and observable behavior.

Does everything need to be rewritten?

Not by default. The first step is to isolate fragile areas and decide whether to stabilize, refactor, replace a module or plan a gradual migration.

Can work continue while the product is in the field?

Yes. The plan can separate urgent interventions, compatible improvements and migrations to validate on a variant or test environment before release.

Let’s discuss your project

Tell us your goal, what is already available and what needs to improve. We can then assess the next step together.