UniElec U7621-06 256M/16M

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MTK Network Process Platform
Homepage Product page
WikiDevi.wi-cat.ru UniElec U7621-06
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev UniElec U7621-06 256M/16M
Type wireless embedded board
CPU1 checkY MediaTek MT7621A
CPU1 Type MIPS 1004Kc
CPU1 Speed 880 MHz ( 2 cores ) 16-bit
Flash1 Chip Macronix MX25L12805D
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 256 MiB 268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (DDR3)
RAM1 Chip Brand? Model?
ETH chip1 MediaTek MT7621A
Switch MediaTek MT7621A
Ethernet Port Count 1-1GbE-WAN
4-1GbE-LAN
Wired Standard IEEE 802.3/3u/3ab

Ethernet OUI: 7C:3E:9D

Stock bootloader U-Boot v4.0 Breed
Stock FW OS Linux 3.14.48 PandoraBox v14
Expansion IF types Mini PCIe, USB 3.0, SATA 3.0, mSATA, SIM Card slot, TF Card slot
SIM Card slot 1
Mini PCIe slots 3
USB ports 1
SD/MMC Slots 1
SATA Ports 1
USB Hub Compatible Untested
Power 12 VDC, 1 A
Connector type barrel
Serial Port (UART) yes, 4-pin header, 3.3V TTL, (115200 8N1)

Flags:
SIM Card slot, TF Card slot

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
, PandoraBox
, Padavan (unofficially)
Retail
(Est.) release date October 2017
(Est.) initial retail price (in USD): $42
 CPU1 brandFLA1RAM1
UniElec U7621-06 256M/16MMediaTek16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
UniElec U7621-06 256M/32MMediaTek32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br />256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
UniElec U7621-06 512M/64MMediaTek64 MiB67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br />512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />

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

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

Links of Interest

Notes use of Breed bootloader
2x Mini PCIe, 1x Mini PCIe/mSATA (USB 2.0), 1x SATA 3.0, 1x USB 3.0 ports
Notes RAM as variable (256 MiB standard, 512 MiB upgraded)
States OpenWrt, Padavan, and PandoraBox support, though, possibly unofficial?
The price of the unit ranged from 41.90 (bare) to 124.80 USD (enclosed with MT7615 modules)
MAC address duplication - 7c:3e:9d:1d:7a:2c

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 18.06.0
Current supported version: 25.12.2
LAN Hardware: MediaTek MT7621AT
WLAN Hardware: WLAN dependent on mPCIe installed
WLAN Comment: 4 detachable antennas, WLAN dependent on mPCIe installed
Installation method(s):
See git-commit
Recovery method(s):
Breed web recovery, see git-commit
Comment:
The manufacturer offers five different wireless cards with MediaTek chipsets, based on MT76x2, MT7603 and MT7615. Images of the board all show that the miniPCIe slots are dedicated to specific Wi-Fi cards. However, the slots are generic.
git • >> 
ramips: add support for UniElec U7621-06
UniElec U7621-06 is a router platform board based on MediaTek MT7621AT.
The device has the following specifications:

- MT7621AT (880 MHz)
- 256/512 MB of RAM (DDR3)
- 8/16/32/64 MB of FLASH (SPI NOR)
- 5x 1 Gbps Ethernet (MT7621 built-in switch)
- 1x ASMedia ASM1061 (for mSATA and SATA)
- 2x miniPCIe slots (PCIe bus only)
- 1x mSATA slot (with USB 2.0 bus for modem)
- 1x SATA
- 1x miniSIM slot
- 1x microSD slot
- 1x USB 3.0
- 12x LEDs (3 GPIO-controlled)
- 1x reset button
- 1x UART header (4-pins)
- 1x GPIO header (30-pins)
- 1x FPC connector for LEDs (20-pin, 0.5 mm pitch)
- 1x DC jack for main power (12 V)

The following has been tested and is working:

- Ethernet switch
- miniPCIe slots (tested with Wi-Fi cards)
- mSATA slot (tested with modem and mSATA drive)
- miniSIM slot
- sysupgrade
- reset button
- microSD slot

Installation:

This board might come with a different firmware versions (MediaTek SDK,
PandoraBox, Padavan, etc.). If your board comes with PandoraBox, you can
install LEDE using sysupgrade. Just SSH to the router and perform forced
sysupgrade (due to a board name mismatch). The default IP of this board
should be: 192.168.1.1 and username/password: root/admin. In case of a
different firmware, you can use web based recovery described below.

Use the following command to perform the sysupgrade (for the 256MB
RAM/16MB flash version):

sysupgrade -n -F lede-ramips-mt7621-u7621-06-256M-16M-squashfs-sysupgrade.bin

Recovery:

This board contains a Chinese, closed-source bootloader called Breed
(Boot and Recovery Environment for Embedded Devices). Breed supports web
recovery and to enter it, you keep the reset button pressed for around
5 seconds during boot. Your machine will be assigned an IP through DHCP
and the router will use IP address 192.168.1.1. The recovery website is
in Chinese, but is easy to use. Click on the second item in the list to
access the recovery page, then the second item on the next page is where
you select the firmware. In order to start the recovery, you click the
button at the bottom.

LEDs list (top row, left to right):

- LED_WWAN# (connected with pin 42 in LTE/mSATA slot)
- Power (connected directly to 3V3)
- CTS2_N (GPIO10, configured as "status" LED)
- TXD2 (GPIO11, configured as "led4", without default trigger)
- RXD2 (GPIO12, configured as "led5", without default trigger)
- LED_WLAN# (connected with pin 44 in wifi0 slot)

LEDs list (bottom row, left to right):

- ESW_P0_LED_0
- ESW_P1_LED_0
- ESW_P2_LED_0
- ESW_P3_LED_0
- ESW_P4_LED_0
- LED_WLAN# (connected with pin 44 in wifi1 slot)

Other notes:

1. The board is available with different amounts of RAM and flash. We
have only added support for the 256/16 MB configuration, as that seems
to be the default. However, all the required infrastructure is in place
for making support for the other configurations easy.

2. The manufacturer offers five different wireless cards with MediaTek
chipsets, based on MT76x2, MT7603 and MT7615. Images of the board all
show that the miniPCIe slots are dedicated to specific Wi-Fi cards.
However, the slots are generic.

3. All boards we got access to had the same EEPROM content. The default
firmware reads the Ethernet MAC from offset 0xe000 in factory partition.
This offset only contains 0xffs, so a random MAC will be generated on
every boot of the router. There is a valid MAC stored at offset 0xe006
and this MAC is shown as the WAN MAC in the bootloader. However, it is
the same on all boards we have checked. Based on information provided
by the vendor, all boards sold in small quantities are considered more
as samples for development purposes.

Pictures

Retail Images

See also

Wireless Routers
MediaTek MT7986A/MT7975N/MT7975PN/MT7531AE/MxL GPY211
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