ZTE ZXECS EBG3130

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abgn+ac (AC1300)
WiFi Router
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev ZTE ZXECS EBG3130
FCC ID none specified
Type wireless router
CPU1 checkY MediaTek MT7620A
CPU1 Type MIPS 24KEc
CPU1 Speed 580 MHz 32-bit
Flash1 Chip Brand? Model?
Flash1 Size 16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 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 MT7620A
Switch MediaTek MT7620A
Ethernet Port Count 1-100MbE-WAN
4-100MbE-LAN
Wired Standard IEEE 802.3i/3u

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types SD, USB 2.0
USB ports 1
SD/MMC Slots 1
USB Hub Compatible Untested
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)

Flags:
LTE

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7620A
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
n-QAM up to 400 Mbps
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 MT7610EN
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 2.4 GHz

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

For a list of all currently documented ZTE devices with specifications, see ZTE.

• 400 Mbps - 2SS 2.4GHz 802.11n (40MHz chan., 256-QAM),
• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1300 class

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt7620
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 19.07.0
Current supported version: fix
LAN Hardware: MediaTek MT7620A
WLAN Hardware: MediaTek MT7620A
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
git • >> 
ramips: Add support for ZTE ZXECS EBG3130 aka BDCOM WAP2100-SK
On the bottom sticker it's branded as ZTE ZXECS EBG3130 device, but in factory
OpenWrt image it's referenced as BDCOM WAP2100-SK device.

Specifications:

- SoC: MediaTek MT7620A
- RAM: 128 MB
- Flash: 16 MB
- Ethernet: 5 FE ports
- Wireless radio: 2T2R 2.4 GHz and 1T1R 5 GHz (MT7610EN, unsupported)
- UART: 1 x UART on PCB marked as J2 (R=RX, T=TX, G=GND) with 115200 8N1 config
- LEDs: Power, FE ports 1-5, WPS, USB, RF 2.4G, RF 5G
- Other: USB port, SD card slot and 2x external antennas (non-detachable)

Flashing instructions:

A) The U-Boot has HTTP based firmware upgrade

  A1) Flashing notes

  We've identified so far two different batches of units, unfortunately
  each batch has different U-Boot bootloader flashed with different
  default environment variables, thus each batch has different IP address
  for accessing web based firmware updater.

  * First batch has web based bootloader IP address 1.1.1.1
  * Second batch has web based bootloader IP address 192.168.1.250

  In case you can't connect to either of those IPs, you can try to get
  the default IP address via two methods:

  A1.1) Serial console, then the IP address is visible during the boot

   ...
   HTTP server is starting at IP: 1.1.1.1
   raspi_read: from:40004 len:6
   HTTP server is ready!
   ...

  A1.2) Over telnet/SSH using this command:

   root@bdcom:/# grep ipaddr= /dev/mtd0
   ipaddr=1.1.1.1

  A2) Flashing with browser

  * Change IP address of PC to 1.1.1.2 with 255.255.255.0 netmask
  * Reboot the device and try to reach web based bootloader in the
    browser with the following URL http://1.1.1.1

  * Quickly select the firmware sysupgrade file and click on the
    `Update firmware` button, this all has to be done within 10 seconds,
    bootloader doesn't wait any longer

   If done correctly, the web page should show UPDATE IN PROGRESS page
   with progress indicator. Once the flashing completes (it takes roughly
   around 1 minute), the device will reboot to the OpenWrt firmware

  A3) Flashing with curl

   sudo ip addr add 1.1.1.2/24 dev eth0
   curl \
      --verbose \
      --retry 3 \
      --retry-delay 1 \
      --retry-max-time 30 \
      --connect-timeout 30 \
      --form "firmware=@openwrt-ramips-mt7620-BDCOM-WAP2100-SK-squashfs-sysupgrade.bin" \
      http://1.1.1.1

   Now power on the router.

B) The U-boot is based on Ralink SDK so we can flash the firmware using UART.

   1. Configure PC with a static IP address and setup an TFTP server.
   2. Put the firmware into the tftp directory.
   3. Connect the UART line as described on the PCB (G=GND, R=RX, T=TX)
   4. Power up the device and press 2, follow the instruction to set device and
      tftp server IP address and input the firmware file name. U-boot will then load
      the firmware and write it into the flash.

Signed-off-by: Petr Štetiar
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