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openwrt/target/linux/ramips/image
Simonas Tamošaitis f970c4eefc ramips: mt7621: add Teltonika RUTM30/RUTM31 support
Specifications:
- MediaTek MT7621AT SoC
- 256 MB RAM
- 16MB SPI NOR Flash
- 256MB NAND (split in half for firmware fallback)
- 2x 10/100/1000 Mbps Ethernet, with passive PoE support on LAN
- WLAN      : MediaTek dual-band WiFi 5
  - 2.4 GHz : b/g/n, MIMO 2x2
  - 5 GHz   : n/ac, MIMO 2x2
- Quectel RG520N-EB 5G R16 modem (RUTM30) or RG500U-EB 5G (RUTM31)
- 1x Digital input
- 1x Digital output
- 2x SIM slot (can be swapped via AT commands)
- eSIM
- TPM

GPIO:
- 1 button (Reset)
- 3 LEDs (power, 2 RGB)
- 3 Modem control (power button, reset, eSIM switch)
- 1 Digital input
- 1 Digital output
- 1 TPM enable

Installation
------------
Notice: update OEM firmware to 7.19 or later, earlier versions will
fail to flash openwrt factory firmware.

1. Check from which partition the device is currently running from

  $ cat /proc/bootconfig/chosen

  In case this output reads rutos-b, install a software update from
  Teltonika first. After upgrade completion, check this file now reads
  rutos-a before continuing.

2. Download the *-squashfs-factory.bin firmware image
3. Flash firmware image via WEB interface

To revert back to OEM firmware:
https://wiki.teltonika-networks.com/view/Bootloader_menu

Mobile connection:
- RG520N-EB:
    Use "ModemManager" to establish mobile data connection.
- RG500U-EB:
    echo -ne 'AT+QNETDEVCTL=1,3,1\r\n' > /dev/ttyUSB2
    Create DHCP interface with usb0 device.

Signed-off-by: Simonas Tamošaitis <simsasss@gmail.com>
2026-05-20 00:02:31 +02:00
..
lzma-loader treewide: strip trailing whitespace 2025-05-20 00:47:37 +02:00
common-sercomm.mk targetwide: imagebuilder: add explicit guards around initramfs rules 2025-10-21 11:38:18 +02:00
common-tp-link.mk ramips: introduce TP-Link v1 header OKLI image recipe 2024-10-06 14:07:37 +02:00
Makefile ramips: fix wrg-header image recipe 2025-05-22 18:49:31 +02:00
mt76x8.mk ramips: mt76x8: add support for MovingComm C120EV 2026-05-14 16:39:35 +02:00
mt7620.mk targetwide: imagebuilder: add explicit guards around initramfs rules 2025-10-17 10:51:37 +02:00
mt7621.mk ramips: mt7621: add Teltonika RUTM30/RUTM31 support 2026-05-20 00:02:31 +02:00
rt288x.mk ramips: rt288x: remove default build barriers 2025-05-09 11:31:20 +02:00
rt305x.mk treewide: rename ZyXEL to Zyxel 2024-08-25 15:08:25 +02:00
rt3883.mk ramips: fix image recipe for ASUS RT-N56U 2024-07-13 14:30:42 +02:00