Raspberry Pi Locks RAM Swaps as Its Own Prices Triple
Hardware / explainer
Raspberry Pi Locks RAM Swaps as Its Own Prices Triple
A 2024 firmware check that blocks third-party RAM chips only became widely known this week, just as Raspberry Pi's own memory costs have pushed the 16GB Pi 5 from $120 to $305.
Raspberry Pi's Pi 5 firmware has blocked RAM chip swaps since a September 2024 bootloader update, and the restriction only became widely known this week after Jeff Geerling traced a wave of failed boots to an undocumented mismatch check.
The firmware compares installed memory against configuration values Raspberry Pi writes into each board's one-time-programmable memory at the factory. A mismatch produces what the community has labeled a code 9 SDRAM error, and the board refuses to boot, according to reporting from Hackaday, which traced the symptom to a 2025-era GitHub ticket on the rpi-eeprom project. Geerling says the check shipped in the firmware branch that followed the 2024-09-10-2712 release. Downgrading to that build, or an older one, is the only workaround anyone has documented.
Why Raspberry Pi locked the RAM down
The clearest official explanation is a forum post from Raspberry Pi engineer PhilE, who moderates the company's support forums. Raspberry Pi buys memory "in large quantities on very competitive commercial terms," PhilE wrote, but resellers have been buying low-capacity boards, desoldering the factory chip, and installing a higher-capacity part "of dubious origin" before selling the board as a tier the company never tested or supported. Geerling, who says he generally sides with Raspberry Pi on the technical merits, describes the same scheme more plainly: buyers finding cheap 1- or 2-gigabyte Pi 5 boards with unreliable 8-gigabyte chips soldered on and resold as genuine 8GB units.
The price backdrop the fraud is exploiting
The number that matters here is not the RAM chip's cost but the gap between it and what Raspberry Pi itself now charges for capacity, and that gap has moved a long way in Raspberry Pi's favor. The 16GB Pi 5 launched at $120 on Jan. 9, 2025. By early 2026 it had reached $205, Tom's Hardware reported, the second increase in three months. It now lists for $305 on Raspberry Pi's own store, more than double the launch price in about 14 months.
| Date | 16GB Pi 5 price |
|---|---|
| Jan. 9, 2025 (launch) | $120 |
| Early 2026 | $205 |
| Sept. 2026 (current) | $305 |
Raspberry Pi has said the increases track rising costs for LPDDR4 memory, the older DRAM standard the Pi 5 uses, and that the cost of some parts "more than doubled" in a single quarter as fabrication capacity shifts toward the DDR5 and HBM that AI datacenters buy instead. One round of that increase, dated Feb. 2, 2026, added $10 to the 2GB board, $15 to the 4GB, $30 to the 8GB and $60 to the 16GB in a single announcement, on top of whatever the prior round had already added. That squeeze cuts both ways for Raspberry Pi's fraud problem. A low-capacity board and a scavenged chip cost a reseller less than ever relative to what a genuine 16GB unit now sells for, which is exactly the arbitrage PhilE described, just wider than it was when Raspberry Pi first wrote the mismatch check in 2024.
What the workaround doesn't fix
Running firmware 2024-09-10-2712 restores a swapped chip, but only until the next official update reintroduces the check, and Raspberry Pi has not said whether a supported upgrade path is coming. Geerling has proposed reviving a mechanism the company used on boards up to the Pi 3 B: a one-time "warranty bit" that flips when an owner knowingly voids support, the same logic Raspberry Pi already applies to overclocking past its rated limits in config.txt. Nothing the company has published addresses whether that idea is under consideration, and Hackaday's write-up frames the silence as its own answer, comparing the lockdown to the parts-pairing practices Apple has drawn criticism for on iPhone and Mac repairs.
That comparison is the harder one for Raspberry Pi to shake, because tinkering down to the chip level is the premise the board was built on, not an edge case. A closed device that blocks RAM swaps is unremarkable; a board sold on its openness that does the same thing is a different claim. What would change that read is a supported repair path, the warranty-bit approach or something like it, arriving before the next memory-driven price increase pulls more resellers toward the scheme it was written to stop. Raspberry Pi has not said one is coming.
Sources
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