Since replacing it with the Redmi AX6000 last October, the Y1S that had served for nearly 10 years finally retired and has since been sitting unused in a box…
Until recently, while browsing the Enshan forum, I accidentally saw a post by user 1421890054: 【2022-1-22】折腾一下OpenWrt-Lenovo-newifi-y1s-R22.1.1-mt7620a-USB, and realized that the Y1S can actually support larger flash chips (the original Winbond 25Q128 is only 16M, and after installing OpenWrt there is basically no room for software…). So I dug out the retired Y1S, planning to try a hard‑mod flash upgrade for fun.
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