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I will develop mcu bootloader ota firmware updates signed images rollback recovery
Embedded Firmware Developer for Reliable Product Firmware Developments
I develop embedded firmware for connected devices and custom products. Services include microcontroller programming drivers sensor integration communication protocols real time systems debugging and o...
About this Gig
Need firmware updates that do more than transfer a binary? I develop bootloader solutions focused on safe installation, image validation, and recovery when an update fails.
Services include custom MCU bootloader development, wired or wireless upgrades, OTA integration, flash memory planning, CRC/hash integrity checks, signed-image verification where supported, version checks, rollback handling, and update diagnostics. I support suitable STM32, ESP32, and other MCU targets using UART, USB, CAN, BLE, or Wi-Fi.
We plan for power loss, corrupted images, interrupted transfers, and applications that fail health checks. Dual-slot/A-B updates, recovery paths, and anti-rollback controls are available when the hardware and platform support them.
Deliverables may include source code, flash-map documentation, update protocol details, build instructions, and agreed test evidence. Secure boot and signing depend on MCU capabilities, architecture, and key management; certification is not included.
Before ordering, send your MCU model, framework, current firmware, update method, flash size, and required recovery behavior. Ill confirm a realistic scope first.
FAQ
Can you develop a custom MCU bootloader?
Yes. I can develop or adapt a bootloader for a supported microcontroller, including application startup, firmware validation, update handling, and recovery behavior based on the target architecture.
Do you support STM32 and ESP32 bootloader development?
Yes, subject to the specific chip, flash layout, framework, and existing project. Send the exact MCU model so I can confirm which bootloader and security features are supported.
Can you implement OTA firmware updates?
Yes. I can integrate over-the-air updates using an available transport such as Wi-Fi or BLE, or another suitable communication interface. The network, server, and device-side requirements must be defined before implementation.
Can the device recover if a firmware update fails?
Where the hardware and flash layout permit, I can implement recovery paths, update-state checks, or rollback to a previously working application. Recovery cannot be guaranteed if the bootloader itself is corrupted without a separate recovery mecha
Do you support dual-bank or A/B firmware updates?
Yes, when the MCU, available flash, and platform support the required storage layout. I can assess slot management, image validation, boot selection, and fallback behavior.
Can you add secure boot and signed firmware verification?
I can integrate supported signature-verification and secure-boot mechanisms. The implementation depends on the MCU's security architecture, available hardware features, signing process, and key-management requirements.
What is the difference between CRC validation and signed firmware?
CRC is useful for detecting accidental data corruption, but it does not authenticate the software publisher. Digital
