Raspberry Pi Implemented Firmware RAM Locks
The company began restricting memory capacity upgrades on its Pi 5-family boards in September 2024.
Updated on Sept. 28, 2026 in Semiconductors
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Raspberry Pi introduced firmware locks in September 2024 that prevent unauthorized RAM capacity upgrades on Pi 5-family boards. This policy, confirmed by a senior engineer in June 2026, ensures boards cannot utilize larger memory chips than those installed at the factory.
Why it matters
The company implemented these restrictions to deter scalpers from reselling lower-memory boards fitted with unauthorized high-capacity chips. Additionally, the move prevents potential support issues arising from erratic performance caused by unofficial hardware modifications.
The firmware restricts boards, such as the 2GB base model, from running larger unauthorized RAM chips. Users can bypass this memory check by flashing bootloader version v2024.09.10-2712, though doing so prevents future firmware updates.
The players
Raspberry Pi
This is a UK-based organization known for developing affordable single-board computers for educational and professional hobbyist use.
The details
The firmware performs a check against the original factory RAM capacity before allowing the system to boot. While a senior engineer confirmed that even same-part repairs might fail due to these protections, users remain able to circumvent the requirement by using an older, unpatched bootloader version.
Timeline
September 2024: Firmware locks began appearing on Pi 5-family boards.
September 25, 2024: The bootloader version containing the memory check was officially published.
June 2026: A senior principal software engineer formally confirmed the internal policy.
The Tech Race
This policy reflects a broader industry shift toward stricter hardware-level verification to prevent secondary market tampering. It marks a significant move away from the open-modification legacy of previous computing platforms, prioritizing manufacturer control over user-led hardware upgrades.
Users attempting to upgrade their board RAM will find their modifications blocked by the updated firmware. Those who choose to bypass the lock using an older bootloader will sacrifice access to important future firmware updates for their devices.
The takeaway
Users should verify their firmware version before attempting any hardware modifications to avoid unexpected device behavior. Those prioritizing standard support should avoid unofficial memory upgrades that trigger these factory-check locks.
Further reading
For more context on hardware architecture and component limitations, visit the Semiconductors section.
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