How To Update The WiFi Dongle Chipset Firmware
This guide explains how to update the HF21 / HFA21 WiFi Dongle chipset used in some GivEnergy systems. Updating the chipset improves WiFi stability with newer routers. The update requires connecting to the dongle’s local hotspot and uploading two firmware files.
Download the Required Files
You can download the firmware files here:
Before You Begin
- You must use a laptop or computer (not a phone).
- Ensure strong local hotspot connection.
- If using an external dongle, power it from a USB power supply.
- If using an internal inverter dongle, turn DIP switches 2 and 3 Off to reduce data load, then turn them back On afterwards.
Step 1 - Connect to the Dongle Hotspot
On your laptop, search for WiFi networks and connect to the dongle hotspot. Its name will look similar to:
- WE2300G100
- WJ2300G100
If the hotspot is password-protected and you cannot access it, press the dongle reset button for 10 seconds. After rebooting, the hotspot will have no password.
Step 2 - Log in to the Dongle
Open a web browser and go to:
Username: admin
Password: admin
Step 3 - Check Your Current Version
Select Device Management. Make a note of the current chipset version. If it is below
T27, proceed with the update.
Step 4 - Upload the Firmware Files
Go to:
http://10.10.100.254/EN/uboot.html
- T27 Chipset Update File → Apply → Reboot when prompted
- Bootloader (1.1.4) → Apply → Reboot
- Chipset Version: T27
- Bootloader: 1.1.4
Step 5 - Confirm the Update
Return to Device Management and verify the firmware version now shows T27. This confirms the update completed successfully.
Step 6 - Secure the Dongle
- Change the local hotspot password (under AP Interface Settings).
- Change the login password (under Device Management).
- Use a secure password rather than simple values such as 12345678.
Step 7 - Reconnect the Dongle to Your WiFi Network
Once the chipset is updated and secured, reconnect the dongle to your home WiFi network as normal using the WiFi setup menu.
After the Update
The dongle should now maintain a more stable WiFi connection on modern routers. If issues continue:
- Ensure router is using 2.4 GHz WiFi
- Ensure DHCP is enabled
- Reduce WiFi channel width to 20 MHz
- Move router closer or reduce obstructions
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