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OpenWrt support for Tube-E4G

Quick start guide

OpenWrt based firmware

Download the prebuilt OpenWrt based firmware here: Download

Connect devices

Prepare following equipments and connect them as illustration below:

  • Computer(PC/NB)
  • PoE adapter
  • Tube-E4G
  • 4G/LTE SIM card

Reflash firmware with Web fail-safe mode (optional)


You can skip this step if you had OpenWrt based firmware by default.

  • Power off
  • Keeping press reset button and power on Tube-E4G
  • Release reset button right after the ethernet LED blink 3 times (The LED will have a short fast blinks when Web fail-safe mode enabled)

Setup computer with static IP mode, and set the IP to

Open with browser, it will display following Web fail-safe page:

Select the OpenWrt based firmware for Tube-E4G and click "Update firmware".

Wait around 5 minutes for the device to finish firmware reflash.


There is no sign indicating the end of process. Just reconnect the device directly after a proper period of time. The process won't break the bootloader code. So it's safe to power off and retry again.

Setup 4G/LTE

Change the computer to DHCP mode. The computer should obtain an IP 192.168.1.### from Tube-E4G DHCP server.

After getting IP, open with browser:

Click Login button to login without password.

Enter "Network >> Interfaces" page and click the "Edit" button of the wwan interface item.

Fill or edit the the options per your needs:

and click the Save button.

Click the "Save & Apply" button to apply new settings, and wait 5~20 seconds for service restart.