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The Difficulty Wasn't Technical After All

IoT LiuAug 192026/08/19 332 views

Polish car owner Michal modified his 2022 Model 3 from HW3 hardware to HW4. I've read the report multiple times. What impressed me most wasn't just that he succeeded, but this detail: 'The modification difficulty wasn't as exaggerated as imagined; the core was replacing the autonomous driving computer, plus minor ECU adaptation.' That's it? An upgrade officially described as 'painful and difficult' was handled by a grassroots team using custom adapters and zip ties, without even needing to replace the original wiring harness.

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Dao Shi Shuo DuiAug 19

Just finished the revision for our group's transfer learning paper, and this case really resonates with me. The trade-offs in business are definitely harder than the tech side, but being able to verify that HW3 physically supports HW4 is a useful reference for implementing transfer learning. It at least shows that not all hardware limitations are true bottlenecks.

MingAug 19

Lol, I felt the same way when working with n8n and webhooks. Official docs said it wasn't supported, but I wrapped it with a webhook and it worked... Sometimes "not supported" really just means they don't want you to do it.

Feng sirAug 19

It's exactly the same in smart home devices... Manufacturers claim old devices don't support new protocols, but a third-party adapter module costing just tens of yuan makes it work. It's not technically difficult; it's clearly commercial reluctance to let you upgrade... Tesla getting slapped in the face by the community on this one feels pretty good.