I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration. So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.
GivEnergy WiFi Dongle Firmware Update — Step-by-Step Guide
- Covers all GivEnergy WiFi dongle variants
- Official GivEnergy firmware process
- Includes failed-update recovery steps
WiFi dongle issues are a common cause of portal outages and monitoring gaps. Follow the free step-by-step guide on this page. If it still won't connect, we set it up on site, from £195: we connect it to your WiFi, set up your router, including a separate 2.4 GHz network if it needs one, and check it's reporting. Dongle firmware we can update for you on site, or supply the right files if you want to do it yourself. It is quoted first.
Book on-site WiFi setupGivEnergy hubNot affiliated with GivEnergy Ltd. Independent support and setup.
My GivEnergy solar and battery system is failing intermittently, GivEnergy is in administration and so is my installer, so it was a relief to get Ron’s expert advice.
I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues
Excellent knowledge and service. Ron responded to my initial query really quickly (same day), and confirmed that he could add extra panels and battery to my existing GivEnergy setup - something I’d been told by other installers wouldn’t be possible. Two weeks later (!), scaffolding was up and Ron and his team were on site to fit the extra 5 panels and two more GivEnergy batteries. I now have a truly optimised system, which has made the most of the south facing roof space I have, without having to start again with new kit. I’m now generating enough on the solar to fill my batteries, and avoid using the grid. I’ve also exported far more than before. Brilliant experience, well recommended.
⭐⭐⭐⭐⭐ 5-Star Review – Solar Tech Support Installing solar panels is only the first step! To get the best possible performance and maximise your investment, you need to make sure your system is configured correctly and all settings are properly optimised. **Solar Tech Support did exactly that for me, and I couldn't be happier with their professional service!** Their knowledge, expertise, and attention to detail helped me optimise my solar system to get the most out of it. If you already have solar panels and battery storage, I highly recommend contacting Solar Tech Support for professional advice, system optimisation, and technical support. Don't just install solar panels – make sure you're getting the maximum benefit from your investment! ⭐⭐⭐⭐⭐ Highly recommended! Thank you, Solar Tech Support, for your excellent service!
We decided to treat ourselves to an upgrade to our existing solar system, and after a little searching, it became evident that Ron and his team provide the service and support we required. Decommissioning and recommissioning our new SunSynk Acure inverter and a wall-mounted Fogstar battery (which is of substantial size and weight compared to the original) was completed swiftly and competently. The installation was perfectly executed, and all upgraded paperwork for the increased battery export capacity was handled by Ron. I have no hesitation in recommending this team of support technicians to you.
What you need before updating dongle firmware
The GivEnergy dongle firmware update is done entirely through the dongle's local web interface — no internet access or portal login required. We can do it for you on site, or supply the right files if you want to do it yourself. Have these four things ready before you start.
Two separate files are involved: the chipset firmware (T27 update file) and the bootloader version 1.1.4. STS holds the GivEnergy dongle firmware and matches the pair to your hardware version. We can do the update for you on site, or supply the correct pair if you want to do it yourself. We do not send owners off to hunt for firmware files, because the wrong file will leave the dongle unusable. The chipset file must always be applied first; uploading the bootloader before the chipset will cause the update to fail.
Do the update from a laptop. You'll connect it directly to the dongle's WiFi hotspot to access its local interface. Note the dongle and inverter serial numbers before you start: the hotspot is named with the dongle serial, a W followed by letters and numbers, such as WG2049G011. The hotspot password is usually 12345678, and if that is refused, try the inverter serial number in capital letters.
If the dongle is inside the inverter, DIP switches 2 and 3 must be OFF before you upload either file. If you cannot see them clearly, use a torch. On an internal dongle this is the single most common cause of failed updates — do not skip it. An external dongle skips this step.
After the firmware update completes, you'll re-enter your home WiFi credentials in the dongle interface. The dongle only supports 2.4 GHz networks. If your router broadcasts a combined 2.4/5 GHz SSID, the dongle may need a dedicated 2.4 GHz SSID to connect reliably.
Updating the GivEnergy WiFi dongle — 6 steps
Follow these steps in exact order, on a laptop rather than a phone. On a dongle inside the inverter, the DIP switches must be set before any upload, and the chipset file must always be applied before the bootloader. There is no shortcut here — the sequence matters. Allow 20 to 30 minutes: two uploads, with a reboot after each. If you are doing it on site yourself, we supply the files. If you can't follow these steps, we do the update for you on site.
Connect to the dongle's WiFi hotspot
On your laptop, open WiFi settings and connect to the dongle hotspot, which is named with the dongle serial number (a W followed by letters and numbers, such as WG2049G011). Use the password 12345678, or the inverter serial number in capital letters if that is refused. Once connected, your device will show no internet access — this is expected.
Open the local interface at http://10.10.100.254
Open a browser and go to http://10.10.100.254. Use plain HTTP — not HTTPS. Log in with username admin and password admin. If these credentials don't work, try the inverter serial number as the password.
Username: admin
Password: admin
Once you are logged in, open Device Management and note the chipset version. If it already shows T27, stop here: no update is needed and the problem is on the router side. Work through the checks in our WiFi troubleshooting list instead.
Internal dongle only: set DIP switches 2 and 3 to OFF
If the dongle is inside the inverter, locate its DIP switches and set DIP switch 2 and DIP switch 3 to the OFF position before uploading any firmware. This puts the dongle into update mode. An external dongle skips this step; if you are updating a standalone external dongle, power it from a USB supply for the whole update.
Upload the chipset firmware file (T27) — first
In the dongle interface, go to the upload page at http://10.10.100.254/EN/uboot.html. Select and upload the chipset firmware file (T27 update). Click Upload and do not close the browser or disconnect from the hotspot during upload. The dongle will automatically reboot when complete.
Reconnect to the dongle hotspot after the reboot before proceeding to step 5.
Upload the bootloader (version 1.1.4) — second
After the chipset update and reboot, reconnect to the dongle hotspot, log in again at http://10.10.100.254 and go back to /EN/uboot.html. Upload the bootloader firmware file version 1.1.4.
Confirm T27, then return an internal dongle's DIP switches to ON
Once the bootloader update completes and the dongle has rebooted, log back in and open Device Management: the chipset should now show T27. If the dongle is inside the inverter, return DIP switches 2 and 3 to the ON position: left in the OFF (update) position, it will not connect to your home WiFi network. An external dongle skips this step.
Reconnecting the dongle to your home network
After a firmware update, stored WiFi credentials may be cleared. Follow these steps to reconnect and verify the portal is reporting correctly. The full setup steps, screen by screen, are in our WiFi dongle setup guide.
Connect to the dongle hotspot, log into http://10.10.100.254 with admin/admin, and navigate to the WiFi or STA (Station) settings page. This is where you configure the dongle's connection to your home router.
The dongle only supports 2.4 GHz networks. If your router broadcasts a combined band SSID, use your router admin panel to create a dedicated 2.4 GHz SSID, or check that band-steering will correctly associate the dongle to 2.4 GHz. Enter the correct SSID and password and save.
In the dongle interface, check the RSSI (signal strength) after connecting. GivEnergy recommends 70% or above for reliable operation. Below 70% you'll see intermittent portal dropouts and monitoring gaps. If signal is weak, use a WiFi extender or powerline adapter near the inverter. If the signal still won't reach, we can fit a WiFi extender on site: our WiFi setup visit is from £195, and the extender is an extra £75.
Allow 5–10 minutes after reconnecting, then check the inverter shows as online with live data updating: in the GivEnergy app, or on givenergy.cloud if you have GivEnergy Premium. The GivEnergy app and portal are run by GivEnergy Software Ltd, which is still trading. It is a separate company from GivEnergy Ltd. If the inverter remains offline after 15 minutes, remove the dongle from the inverter, wait 30 seconds, and reinsert it.
GivEnergy dongle problems and fixes
If the firmware update fails or the dongle won't connect after updating, work through these checks before calling anyone out.
Can't access http://10.10.100.254
If the local interface doesn't load, confirm your device is still connected to the dongle hotspot — not your home network. On many phones, if no internet is detected on a connected network, the device automatically switches back to a network with connectivity, which is why the update is done from a laptop. Disable mobile data, check WiFi settings, and confirm you're on the dongle SSID.
If the dongle hotspot is not visible at all, hold the reset button for 15 seconds to factory reset the dongle (see our factory reset steps). This will restore hotspot mode and the default admin/admin credentials.
Firmware upload fails, freezes, or produces an error
On a dongle inside the inverter, failed uploads are almost always caused by the DIP switches not being in the correct position: power off the dongle, set switches 2 and 3 to OFF, power back on, reconnect to the hotspot, and retry the upload from step 4. Do not try to reorder the files — chipset must always come before bootloader.
Also confirm you have the correct firmware files for your exact dongle hardware version. The file pairing differs by dongle variant, and a file from the wrong variant will cause the upload to fail. Check the hardware version printed on the dongle label against the files you were given; if you are not certain you have the right pair, stop and ask us before you upload anything.
Dongle connects to home WiFi but portal stays offline
The GivEnergy dongle communicates with the cloud on port 7654. Some routers or parental control systems block outbound connections on non-standard ports. Check your router's firewall settings and ensure outbound traffic on port 7654 is not being blocked.
Also check the dongle has a valid DHCP-assigned IP address from your router (not 10.10.100.254, which is the hotspot address). If it shows 10.10.100.254 after connecting, the router hasn't assigned an IP — try rebooting your router and the dongle.
Portal keeps dropping out after the firmware update
Intermittent dropouts after an update almost always indicate a WiFi signal problem. Check the RSSI in the dongle interface — below 70% the connection is marginal. Try moving a WiFi extender closer to the inverter, or use a powerline adapter for a wired-equivalent connection to the router.
Also confirm the dongle is connecting to 2.4 GHz. If your router uses the same SSID for both bands, check your router's client list or the dongle's interface to confirm which radio it has associated with. 5 GHz has shorter range through walls and is not supported.
If the firmware update has left the dongle unable to boot or enter hotspot mode, if a GivInstaller update has left it dead, if you're not comfortable with the DIP switch process, or if the portal has been offline for more than 24 hours despite working through this guide — get in touch. If the dongle needs reconnecting to your WiFi, we can set it up on site, from £195. We don't set up or diagnose WiFi remotely or over the phone: it's quicker and more reliable done on site.
Set up the AECC dongle on the All in One 2 and Gateway 2: WiFi, AP and STA settings.
See AECC dongle setup →Access your GivEnergy inverter data locally without relying on the cloud portal.
See local monitoring →Why GivEnergy shows the inverter offline and what to check to restore the connection.
See portal offline →Basic hardware checks for GivEnergy inverter and battery systems.
See hardware diagnostics →GivEnergy WiFi dongle questions
Still offline? We'll sort your dongle.
Tell us what you're seeing — what the LED is doing, what you've tried, and how long the portal has been offline. If the dongle needs reconnecting to your WiFi, we can set it up on site, from £195, with a WiFi extender an extra £75 if the signal doesn't reach. We don't set up or diagnose WiFi remotely or over the phone: it's quicker and more reliable done on site.
- Not affiliated with GivEnergy Ltd
- No remote WiFi setup or diagnosis: we come to you
- On-site WiFi setup, from £195
GivEnergy problems? Remote fixes: no fix, no fee.
I’ve worked on hundreds of GivEnergy systems and know the kit inside out. If yours is playing up, my promise is simple — no fix, no fee: just £125 if we fix it, free if we don’t.
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