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Setup guide · GivEnergy software

How to Update GivEnergy Firmware — Inverter & Battery Software Guide

GivEnergy firmware updates improve stability, add features, and fix bugs — but they also reset certain settings and occasionally introduce new issues. This guide covers the update process, the one-hour stall rule, and the four settings you must check after every update.
  • Remote portal update — no tools required
  • What to do if update stalls after an hour
  • Settings to verify after every update
System behaving differently after an update?

Firmware updates can silently reset charge schedules, export limits, and EPS settings. If your system stopped working correctly after an update, a remote review identifies which settings changed and restores correct operation.

Book your free remote diagnosticFirmware issue troubleshooting

Not affiliated with GivEnergy Ltd. Independent diagnosis and support.

5.0
13 Trustpilot reviews
Trustpilot Google

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

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 (their Trustpilot reviews don't lie!). 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.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

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

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

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 (their Trustpilot reviews don't lie!). 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.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot
Preparation

Before you update

A firmware update should take 5–30 minutes with a working internet connection. Preparing properly avoids the most common failure modes.

Confirm these before starting
System shows as online in the portal
Home broadband is stable
No scheduled grid events or peak periods
Note your current settings (schedule, export limit, EPS)
Avoid updating if
·System is offline or showing connectivity issues
·You're in the middle of an overnight cheap-rate charge window
·Broadband is unstable (intermittent drops)
·A previous update was already prompted and declined multiple times

Note your settings before updating

GivEnergy firmware updates — especially major version updates — can reset the following settings to factory defaults: charge schedule windows and target SOC values, export limit, CT clamp direction, and EPS mode on/off. Screenshot or write down your current settings before initiating an update. This makes it trivial to restore them if they change.

Update procedure

Remote portal firmware update

The remote update is the standard method for most GivEnergy systems. It updates both the inverter and battery firmware in sequence, without any physical access to the equipment.

Step-by-step

1
Log in to givenergy.cloud

Sign in with your registered email and password. Confirm your system is showing as online on the dashboard — live data should be updating.

2
Navigate to My Inverter → Software

From the dashboard sidebar, select My Inverter Card. In the My Inverter section, select Software. If your system is already running the latest firmware, no update option will appear. If an update is available, you'll see an Update button with the new version number.

3
Press Update

Click the Update button. The portal will show 'Updating' status. The process begins immediately. Do not navigate away from the page and do not turn off the system.

4
Wait 5–30 minutes

The update typically completes within 30 minutes. The inverter display may flash, go dark, or restart during this time — all normal. The portal status will change from 'Updating' to showing live data again when complete.

5
Confirm the new version

Return to My Inverter → Software and check the current firmware version. It should show the version you were prompted to update to. If it still shows the old version, the update may have failed — see the stalled update section below.

Common problem

Update stuck — the one-hour rule

If the portal still shows 'Updating' after one hour, the update has stalled. This is a known behaviour — it does not necessarily indicate hardware damage.

Recovery procedure

1
After exactly one hour — restart the inverter

Locate the AC isolator — this is the switch on the wall below the inverter. Turn it off. Wait 30 seconds. Turn it back on. The inverter will restart and attempt to complete or resume the update.

2
Wait 10 minutes and check the portal

After the restart, wait 10 minutes for the system to reconnect and the portal to refresh. Check the firmware version in My Inverter → Software. In most cases, the update completes successfully after the restart.

3
If the inverter still won't come online

Check the inverter display directly. If it shows a fault code, note it and look it up in the GivEnergy fault codes guide. A completely blank display after restart may indicate a more serious firmware corruption requiring manufacturer recovery — contact GivEnergy support or book a remote diagnostic.

💡

Do not restart before one hour

Restarting too early — while firmware is still being written — can corrupt the flash memory and cause more serious problems. The one-hour mark is the safe recovery point recommended by GivEnergy. If the update is 45 minutes in and you're anxious, wait the extra 15 minutes.

Manual fallback

Local USB firmware update — when remote doesn't work

If the remote portal update has failed after the one-hour restart, the next step is a local update via USB. This is the same procedure GivEnergy support walks customers through when escalating a failed remote update. Both the inverter and the battery have their own local update process — they are separate.

Contact GivEnergy for the firmware files first

You can't do this update without the correct .bin files for your specific inverter and battery model. Email support@givenergy.co.uk, describe the failed remote update, and request the local update files. They'll send three files for the inverter (ARMStore.bin, DSPStore.bin) and one for the battery (BMS_ARM.bin). If you're not comfortable opening the WiFi dongle or the battery front cover, contact your installer or book a remote-guided session instead.

Do not use a SanDisk USB drive

SanDisk USB sticks are not compatible with GivEnergy inverters and dongles — they fail to enumerate on the inverter's USB controller and the update will silently not run. This is internal GivEnergy guidance from their support engineers, not yet documented in the public KB. Use a plain Kingston, Verbatim, or no-name FAT32-formatted USB stick instead. 8 GB or smaller is recommended.

Inverter — local update

There's a difference between Gen 2 and Gen 3 inverters. Check the model label on the side of the inverter before starting.

Step-by-step (Gen 3 — most common UK install)

1
Isolate the inverter at the AC switch

Turn off the AC isolator on the wall below the inverter. Wait until the inverter display goes dark before continuing. This protects you and prevents any in-flight portal commands from interfering.

2
Remove the WiFi dongle (two screws underneath)

The dongle slots into a USB port on the underside of the inverter, held in place by two small Phillips screws. Undo them and pull the dongle straight out — don't twist.

3
Plug the dongle into your PC and find MSN

The dongle appears as a small USB drive. You'll see one file named MSN (no extension) — this is the system serial. Keep MSN, delete every other file on the dongle.

4
Copy the two firmware files onto the dongle

Drop the files GivEnergy sent into the dongle's root: ARMStore.bin and DSPStore.bin. Names must match exactly — case-sensitive, no version suffixes. Eject the drive cleanly before unplugging.

5
Re-fit the dongle and screw it back in

Push the dongle home and tighten both screws. Turn the AC isolator back on. The inverter will power up and start reading the firmware files automatically — this takes about 20 minutes. Don't power-cycle in the middle.

6
Verify on the portal once the inverter is back online

After 20–30 minutes, log into givenergy.cloud and go to My Inverter → Software. The version number should now match what GivEnergy emailed you. If not, email support back and they'll guide you through the next step.

💡

Gen 2 inverters — three differences

Gen 2 systems use a slightly different procedure: (1) before starting, locate the DIP switches on the underside of the inverter and flip all of them to the down position; (2) use any blank FAT32 USB stick (not the dongle) plugged directly into the inverter's USB port — the dongle approach doesn't apply on Gen 2; (3) there's no MSN.TXT file to preserve. Otherwise the file names and the wait time are the same.

Battery — local update

The battery has its own internal USB stick mounted on the BMS. Updating the battery firmware locally requires opening the battery's front cover. Only do this if you're confident working with high-voltage DC equipment. If unsure, book an on-site visit.

Step-by-step

1
Isolate the DC MCB and turn off the battery

The DC MCB is the red- or green-handled rotary switch between the inverter and the battery. Flip it down. Then turn the battery off using its own black power button on the right-hand side.

2
Wait one full hour with the system off

This lets internal capacitors fully discharge before the cover is opened. Do not skip this step — GivEnergy's safety procedure explicitly requires it.

3
Open the battery front cover (5 mm allen key)

Once the hour has passed, remove the screws holding the front cover with a 5 mm allen/hex key. Set the cover aside. Inside you'll see the BMS board with a silver USB stick plugged into one of its ports.

4
Remove the silver USB and load the firmware file

Pull the silver USB straight out — don't lever it. Plug it into your PC. Delete every file on the drive, then copy on the file GivEnergy sent — it must be named BMS_ARM.bin exactly. If their email has a different name, rename it. Eject cleanly.

5
Re-insert the USB and turn the battery back on

Push the silver USB back into the same BMS port. Press the battery's black power button. Within a few minutes you should hear a loud beep — that confirms the update has run successfully.

6
Re-fit the cover, restore power, and email GivEnergy back

Bolt the front cover back on. Flip the DC MCB back up. Then email GivEnergy support to confirm the local update is done — they'll verify the new firmware on their end and trigger the battery calibration cycle (this matters: skipping calibration leaves the SoC reading wrong for weeks).

Calibrate the battery after a local update

GivEnergy needs to remotely trigger a calibration cycle after a local battery firmware update — without it, the SoC display drifts and the battery may refuse to charge to 100% or discharge below the cached minimum. Email support@givenergy.co.uk the moment you've heard the post-update beep and put the cover back on, so they can run the calibration that same day.

Post-update

Settings to check after every firmware update

These four settings are most commonly reset by GivEnergy firmware updates. Check them every time — even minor updates can affect them.

Charge schedule

Check all Timed Charge, Timed Discharge, and Timed Export slots are still present and set to your intended times and target SOC values.

Charge schedule guide →
📤
Export limit

If you have a DNO export limit requirement (typically 3.68kW for a standard domestic connection), verify it's still set correctly. A reset to 0 or to the inverter maximum can cause export limit compliance issues.

Export limit guide →
🔄
CT clamp direction

The CT clamp direction setting can revert to default after updates. Check the portal Charts for the morning after the update — if the grid line shows the opposite of what you'd expect, the CT direction may have flipped.

CT clamp guide →
🔌
EPS mode

If you rely on Emergency Power Supply for power cut backup, verify EPS is still enabled and that the minimum SOC reserve is set correctly after the update.

EPS not working guide →
💡

Also check monitoring connectivity

Some firmware updates affect the dongle's cloud connection behaviour. If the portal shows the system as offline after an update, power cycle the dongle (turn off the AC isolator for 30 seconds). Also check whether your WiFi dongle has a separate firmware update available — dongle and inverter firmware updates are managed separately. See the WiFi dongle guide for dongle-specific update instructions.

Dongle firmware

Dongle firmware is separate from inverter firmware

The GivEnergy portal remote update covers the inverter and battery. The WiFi dongle has its own firmware that is managed separately. For newer AECC dongles, firmware updates are applied via the dongle's local web interface and should only be done when instructed by GivEnergy. For older HF21/HFA21 dongles, the chipset can be updated to T27 to improve compatibility with modern routers.

AECC dongle firmware

Available via the dongle's Software Upgrade page at 10.10.100.254. Only update when GivEnergy advises you to — factory-installed versions are tested for your hardware combination. Uninstructed updates can cause connectivity issues.

AECC dongle guide →
HF21/HFA21 chipset update

The T27 chipset update resolves WiFi connectivity issues on Gen 1 and Gen 2 systems with modern routers. This is a one-time update — after T27, no further chipset updates are needed.

HF21 chipset update guide →
Expert support

System not right after a firmware update?

We restore GivEnergy systems to correct operation after firmware issues — checking what changed, re-applying the correct settings, and confirming the system is working as it should. Remote session, no site visit in most cases.

FAQ

GivEnergy firmware update — common questions

Log in to givenergy.cloud, go to My Inverter Card > Software. If an update is available, press Update. The process takes 5–30 minutes — do not turn off the system during this time. If no update option appears, your system is already running the latest available firmware.
If the portal shows 'Updating' for more than one hour, turn off the inverter at the AC isolator for 30 seconds, then turn it back on. Wait 10 minutes and check the portal — the update should have completed. Do not restart before the one-hour mark as this risks firmware corruption.
Firmware updates can reset charge schedules to factory defaults. Go to the portal Settings and re-enter your Timed Charge and Timed Discharge slots. Also check your export limit, CT clamp direction, and EPS mode settings — all four are commonly reset by major firmware updates.
Generally yes — firmware updates fix bugs, improve stability, and add features. However, if your system is currently working well, wait a week or two after a major release to allow any early-adopter issues to surface on forums. If GivEnergy pushes the update automatically, you have no choice. After any update, check your four key settings: schedule, export limit, CT direction, and EPS mode.
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Need help with a firmware update?

If a firmware update has caused unexpected behaviour, reset your settings, or you're not sure whether to update — we can review your system remotely and advise.

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