MeiG SLT866 4G

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abgn+ac (AC1200)
4G LTE CPE Router
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Partial Support
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev MeiG SLT866 4G
FCC ID 2APJ4-SLT866
Type access point, CPE
CPU1 checkY MediaTek MT7621AT
CPU1 Type MIPS 1004Kc
CPU1 Speed 880 MHz ( 2 cores ) 16-bit
Flash1 Chip Brand? Model?
Flash1 Size 32 MiB 33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br />
RAM1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Chip Brand? Model?
ETH chip1 MediaTek MT7621AT
Switch MediaTek MT7621AT
Ethernet Port Count 1-1GbE-WAN
1-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types sim Slot, USB
SIM Card slot 1
Power 12 VDC, ? A
Connector type barrel
Other

Default SSID: 4G-CPE-2.4G-XXXX
, 4G-CPE-5G-XXXX
Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 1359 additional devices
of which 0 are MeiG devices

3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7603BE
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 MediaTek MT7613BE
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.),
• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1200 class

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 23.05.2
Current supported version: fix
Image too big: DFS, Si32185 SLIC
Unsupported Functions:
Si32185 SLIC
LAN Hardware: MediaTek MT7621AT
LAN Comment: 3G/4G Modem: MEIG SLM828 (currently only supported with ModemManager)
WLAN Hardware: MediaTek MT7603BE, MediaTek MT7613BE
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
git • >> 
ramips: add support for MeiG SLT866 4G CPE
Hardware:
 - SoC: Mediatek MT7621 (MT7621AT)
 - Flash: 32 MiB SPI-NOR (Macronix MX25L25635E)
 - RAM: 128 MiB
 - Ethernet: Built-in, 2 x 1GbE
 - 3G/4G Modem: MEIG SLM828 (currently only supported with ModemManager)
 - SLIC: Si32185 (unsupported)
 - Power: 12V via barrel connector
 - Wifi 2.4GHz: Mediatek MT7603BE 802.11b/g/b
 - Wifi 5GHz: Mediatek MT7613BE 802.11ac/n/a
 - LEDs: 8x (7 controllable)
 - Buttons: 2x (RESET, WPS)

Installing OpenWrt:
 - sysupgrade image is compatible with vendor firmware.

Recovery:
 - Connect to any of the Ethernet ports, configure local IP:
   10.10.10.3/24 (or 192.168.10.19/24, depending on OEM)
 - Provide firmware file named 'mt7621.img' on TFTP server.
 - Hold down both, RESET and WPS, then power on the board.
 - Watch network traffic using tcpdump or wireshark in realtime to
   observe progress of device requesting firmware. Once download has
   completed, release both buttons and wait until firmware comes up.
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