{
  "id": "sim/simax1800u",
  "vendor": "SIM",
  "model": "SIMAX1800U",
  "category": "router",
  "identifiers": {
    "chips": [
      "MediaTek MT7621AT"
    ]
  },
  "status": "open-firmware",
  "projects": [
    {
      "name": "OpenWrt",
      "url": "https://openwrt.org/toh/hwdata/sim/sim_simax1800u",
      "kind": "firmware",
      "license": "GPL-2.0"
    }
  ],
  "install": [
    {
      "project": "OpenWrt",
      "method": "other",
      "guide": "https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=1199a7aad67a820b961720dafc658a2d8b6a2386",
      "installer": "https://firmware-selector.openwrt.org/?version=25.12.2&target=ramips%2Fmt7621&id=sim_simax1800u",
      "difficulty": "medium",
      "notes": "The Table of Hardware does not record the install method. A factory image exists (it is made to replace the stock firmware, usually through its upgrade page or recovery mode): read the guide first."
    }
  ],
  "provenance": {
    "sources": [
      "openwrt"
    ]
  },
  "updated": "2026-10-17"
}