From five broken transformers versions to 4.45 seconds on the board: getting Qwen2-VL-2B's vision tower onto an RK3588

<p>Two days ago this model wouldn't even export. Today its vision tower runs on a real RK3588 board: a 392×392 image encoded in <strong>4,445.68 ms</strong> (median of three independent processes), model load about 7.3 seconds, zero RKNN errors at runtime. This is a field note from the conversion chain — what broke, what the fix actually was, and what the number does and doesn't mean.</p> <h2> Whe

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