{
  "id": "sercomm/na502s",
  "vendor": "Sercomm",
  "model": "NA502S",
  "category": "other",
  "identifiers": {
    "chips": [
      "MediaTek MT7621ST"
    ],
    "fcc_id": [
      "P27NA502S"
    ]
  },
  "status": "open-firmware",
  "projects": [
    {
      "name": "OpenWrt",
      "url": "https://openwrt.org/toh/hwdata/sercomm/sercomm_na502s",
      "kind": "firmware",
      "license": "GPL-2.0"
    }
  ],
  "install": [
    {
      "project": "OpenWrt",
      "method": "serial",
      "guide": "https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=9ee6ac00c43cc253ac554495edb6214563ab1f31",
      "installer": "https://firmware-selector.openwrt.org/?version=25.12.2&target=ramips%2Fmt7621&id=sercomm_na502s",
      "difficulty": "hard",
      "tools": [
        "USB-serial adapter (3.3 V)",
        "Computer with a TFTP server",
        "Ethernet cable"
      ],
      "opens_device": true,
      "notes": "Table of Hardware method: U-Boot TFTP + serial recovery (flash from the bootloader over a serial console)."
    }
  ],
  "provenance": {
    "sources": [
      "openwrt"
    ]
  },
  "updated": "2026-10-17"
}