Firmware
Secure, reliable firmware and bootloaders built for lifelong device integrity.
We develop secure bootloaders, cryptographic update pipelines, and hardware abstraction layers that protect physical devices from bricking and remote compromise over their entire operating life.
The nightmare of a bricked hardware fleet after a bad update
Pushing firmware updates to thousands of devices deployed in the field carries existential business risk. If a power cut or corrupted packet bricks a device, physical retrieval costs can destroy company margins.
Devices bricking mid-update due to sudden power loss or corrupted payloads
Security vulnerabilities allowing attackers to flash malicious unsigned firmware
Rollback failures leaving devices stuck in unrecoverable boot loops
Lack of remote logging to diagnose firmware exceptions and hard faults
Firmware Capabilities
Dual-Bank A/B Fail-Safe Updates
Implementing dual-partition flash memory layouts where the device reverts to the previous verified bank if the new image fails boot checks.
Cryptographic Secure Boot
Anchoring trust in hardware root-of-trust (RoT) with RSA/ECDSA signature verification before executing any binary image.
Differential Binary Compression
Generating byte-level binary deltas to reduce over-the-air payload size by up to 90%, slashing cellular data transmission costs.
Crash Dumps & Hard-Fault Handlers
Capturing stack traces, register dumps, and fault memory to non-volatile flash for automated telemetry upload upon reboot.
Proven runtimes and industry-standard protocols.
We select tools based on operational reliability, long-term maintainability, and horizontal scaling capabilities.
Bootloader Frameworks
Security & Crypto
Update Protocols
Analysis & Tooling
Why companies choose CodeSelf.
We operate as your dedicated technical partner with production codebases and zero markups.
What you receive at handoff.
Every engagement concludes with documented, tested, and deployable production codebases with zero ongoing licensing fees.
How CodeSelf builds and delivers firmware.
Sprint-based delivery with weekly code releases directly into your private staging environment.
Memory Map & Partition Strategy
Partition internal and external flash into secure bootloader, active slot, update slot, and storage.
Secure Bootloader Implementation
Build cryptographic verification verifying digital signatures and anti-rollback monotonic counters.
Over-the-Air Client Integration
Implement chunked download, SHA-256 integrity checks, and self-testing boot confirmation.
Fault Injection & Power-Cut Testing
Subject test hardware to random power cuts during write cycles to verify fail-safe recovery.
Key technical and commercial questions.
Who owns the source code and intellectual property for firmware systems?+
Can this technology stack be deployed inside our private cloud infrastructure (AWS/GCP/Azure)?+
How do you ensure zero downtime when updating live production services?+
What happens after the project launch? Do you provide ongoing maintenance and handover?+
Related technologies in our stack.
Embedded
We design and develop high-reliability embedded software for ARM Cortex, ESP32, and RISC-V platforms, optimizing for microsecond timing, extreme power efficiency, and zero memory leaks.
IoT
We build enterprise IoT solutions connecting thousands of physical devices, sensors, and gateways to high-throughput cloud streaming pipelines for real-time monitoring and control.
Cybersecurity
We harden software architectures, secure cloud infrastructure, implement zero-trust access controls, and automate vulnerability scanning to protect organizations from modern cyber threats.
Ready to build or scale your firmware stack?
Schedule an architectural consultation with our senior systems team to evaluate infrastructure, tooling, and delivery roadmaps.