Keenetic 4G (KN-1212)

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multiple revisions of this device, use caution
bgn (N300)
N300 Mesh Wi-Fi 4G Modem Router
Homepage Product page
Wikipedia ZyXEL
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev ZyXEL Keenetic 4G (Runner)
Model Part Number KN-1212
FCC ID none specified
Type wireless router
CPU1 checkY MediaTek MT7628NN
CPU1 Type MIPS 24KEc
CPU1 Speed 575 MHz
Flash1 Chip Winbond 25Q256JVFQ
Flash1 Size 32 MiB 33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> (SPI)
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 /> (DDR3)
RAM1 Chip EtronTech EM68C16CWQG-25H
ETH chip1 MediaTek MT7628NN
Switch MediaTek MT7628AN
Ethernet Port Count 4-100MbE-LAN
Wired Standard IEEE 802.3i/3u

802dot11 OUI: none specified

Expansion IF types USB 2.0
USB ports 1
USB Hub Compatible Untested
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7603
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
 CPU1 brandRadio1 chip1 brandRadio1 chip2 brand
Keenetic 4G (KN-1210)MediaTekMediaTek
Keenetic 4G (KN-1211)MediaTekMediaTek
Keenetic 4G (KN-1212)MediaTekMediaTek
ZyXEL Keenetic 4G IIRalinkRalink
ZyXEL Keenetic 4G III rev BMediaTekMediaTek
ZyXEL Keenetic 4G rev BRalinkRalink

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

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

300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt76x8
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 25.12.0
Current supported version: 25.12.2
LAN Hardware: MediaTek MT7628AN
WLAN Hardware: MediaTek MT7603
WLAN Comment: 2.4GHz 2x2 MIMO
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
git • >>
ramips: mt76x8: add support for Keenetic 4G (KN-1212)
Specification:
SoC: MediaTek MT7628NN
RAM: 128 MB, EtronTech EM68C16CWQG-25H (DDR2)
Flash: 32MB, Winbond 25Q256JVFQ (Dual Boot, SPI)
Switch: MediaTek MT7628AN, 4 ports 100 Mbps
WiFi: MediaTek MT7603 2T2R/2.4GHz 802.11n
GPIO: 3 buttons (Wi-Fi, Reset, FN), 3 LEDs (Power, Internet, Wi-Fi), 1 port USB 2.0

Disassembly:
At the bottom, under the LEDs, there are 2 screws hidden by rubber feet. After removing the screws, pry the gray plastic part around (it is secured with latches) and remove it.

Serial Interface:
The serial interface can be connected to the 5 pin dots located on the right between the operating mode switch and the antenna.
Pins (from antenna to operating mode switch):
VCC
TX
RX
NC
GND
Settings: 115200, 8N1

Flashing via OEM recovery software:
1. Download the OEM recovery software from the manufacturer's website
2. Download the firmware image (for OpenWRT it is *-squashfs-factory.bin), rename it to KN-1212_recovery.bin
3. Replace the file in the fw folder OEM recovery software with the file from step 2.
4. Run the OEM recovery software and follow the instructions.

Flashing via TFTP:
1. Connect your PC and router to port 1-3, configure PC interface using IP 192.168.1.2, mask 255.255.255.252
2. Serve the firmware image (for OpenWRT it is *-squashfs-factory.bin) renamed to KN-1212_recovery.bin via TFTP
3. Power up the router while pressing Reset button on the back
4. Release Restart button when Power LED starts blinking

To revert back to OEM firmware:
The return to the OEM firmware is carried out by using the methods described above with the help of the appropriate firmware image.

When using OEM bootloader, the firmware image size cannot exceed the size of one OEM «Firmware_x» partition or Kernel + rootFS size.