EV Charger Software Updates: Complete UK Guide 2025

Your home EV charger isn't just a simple electrical socket—it's a sophisticated piece of smart technology running complex firmware that controls charging speed, manages power distribution, integrates with energy tariffs, and communicates with your smartphone. Like any computer or smart device, EV chargers require regular software updates to maintain security, add new features, fix bugs, and ensure compatibility with evolving energy networks.

Yet many UK homeowners install their smart chargers and never think about software maintenance, potentially missing critical security patches, efficiency improvements, and new features that could save money on charging costs. This comprehensive guide explains everything you need to know about EV charger software updates in the UK: why they matter, how to update different charger brands, troubleshooting failed updates, and future-proofing your charging infrastructure.

Why EV Charger Software Updates Matter

Security and Safety

EV chargers connect to your home WiFi network and communicate with cloud servers, creating potential cybersecurity vulnerabilities:

Security Risks Without Updates:

• Network Intrusion: Outdated firmware may contain vulnerabilities allowing hackers to access your home network through the charger
• Unauthorised Charging: Security flaws could allow neighbours or strangers to use your charger without permission
• Data Breaches: Personal usage data, electricity consumption patterns, and account information could be exposed
• Ransomware: Compromised chargers could be locked, demanding payment to restore functionality

Real-World Example: In 2023, security researchers discovered vulnerabilities in several popular EV charger models allowing remote control and data theft. Manufacturers issued urgent firmware updates to patch these flaws. Chargers that weren't updated remained vulnerable for months.

What Security Updates Provide:

• Encryption improvements for app-to-charger communication
• WiFi security protocol updates (WPA2 to WPA3)
• Authentication strengthening to prevent unauthorised access
• Cloud server security enhancements
• Patches for discovered vulnerabilities

New Features and Functionality

Manufacturers regularly add valuable features through software updates:

Common Feature Additions:

Smart Tariff Integration:

• Ohme regularly adds support for new energy suppliers
• Wallbox expands smart charging partnerships
• Zappi enhances solar tracking algorithms

Energy Management:

• Improved load balancing algorithms
• Better solar surplus detection
• Enhanced scheduling flexibility
• New charging modes (Eco, Boost, Scheduled)

App Improvements:

• New analytics and reporting features
• Enhanced cost tracking and budgeting
• Better historical data visualisation
• Improved user interface and navigation

Compatibility Updates:

• Support for new EV models with specific charging requirements
• Integration with new home battery systems
• Smart home platform compatibility (Alexa, Google Home)
• OCPP (Open Charge Point Protocol) updates for commercial use

Example: Ohme's Evolution Through Updates

Ohme Home Pro launched in 2021 with basic smart charging. Through firmware updates:

• 2021: Added Octopus Intelligent Go integration
• 2022: Added OVO Charge Anytime support
• 2023: Introduced randomised charge start times to reduce grid stress
• 2024: Added enhanced solar integration and load balancing
• 2025: Expanded support to additional energy suppliers

Owners who never updated missed these valuable features!

Bug Fixes and Performance Improvements

Even well-designed chargers have initial bugs that updates resolve:

Common Issues Fixed by Updates:

• WiFi connectivity problems and disconnections
• App communication failures
• Incorrect power readings and session data
• Charging session interruptions
• LED indicator errors
• Scheduling malfunctions
• Solar mode inaccuracies

Performance Enhancements:

• Faster app response times
• Reduced power consumption in standby mode
• Improved charging efficiency (less energy waste)
• Better low-temperature performance
• Enhanced error detection and reporting

Regulatory Compliance

UK regulations and standards evolve, requiring firmware updates:

Regulatory Changes:

• Smart Charging Regulations: UK government requirements for load management
• Grid Services: DNO (Distribution Network Operator) integration requirements
• Energy Supplier Partnerships: New tariff integration standards
• Accessibility Requirements: Enhanced features for users with disabilities

Future-Proofing: As the UK moves toward Net Zero, charging infrastructure will need to participate in demand response programs, V2G (Vehicle-to-Grid), and smart grid integration. Regular updates ensure your charger can adopt these capabilities.

How to Update Different Charger Brands

Wallbox (Pulsar Plus, Commander 2)

Update Method: Automatic via WiFi (with manual option)

Automatic Updates (Recommended):

1. Open Wallbox app (iOS/Android)
2. Go to Settings → Charger Settings
3. Enable "Automatic Updates"
4. Charger will download and install updates overnight when not charging
5. You'll receive notification when update is complete

Manual Update Process:

1. Open Wallbox app
2. Tap charger name at top of home screen
3. Select "About" or "Charger Info"
4. Check current firmware version
5. Tap "Check for Updates"
6. If update available, tap "Update Now"
7. Wait 10-15 minutes (charger will reboot)
8. Do NOT disconnect power during update

Update Duration: 10-15 minutes Update Frequency: Every 2-3 months WiFi Required: Yes

Troubleshooting Wallbox Updates:

• If update fails, restart charger (power cycle at consumer unit)
• Ensure strong WiFi signal (move router closer or use extender)
• Update may require multiple attempts—be patient
• Contact Wallbox support if 3+ failed attempts

Ohme (Home Pro, Home)

Update Method: Fully automatic (no user action required)

How Ohme Updates Work:

1. Ohme automatically checks for updates daily
2. When update available, downloads in background
3. Installs update during non-charging periods (typically 2-4am)
4. Charger briefly reboots (2-3 minutes)
5. Update complete—no notification (seamless)

Checking Your Firmware Version:

1. Open Ohme app
2. Tap "Settings" (gear icon)
3. Select "Charger Settings"
4. Scroll to "Firmware Version"
5. Note version number (e.g., "v2.14.3")

Update Duration: 5-10 minutes (automatic overnight) Update Frequency: Monthly WiFi Required: Yes (updates won't download without WiFi)

Ohme Update Philosophy: Ohme prioritises seamless updates that happen without user intervention. You'll never need to manually trigger updates—they just happen.

Troubleshooting Ohme Updates:

• If charger seems outdated (check Ohme community forums for latest version)
• Verify WiFi connection in app settings
• Restart charger: switch off at consumer unit for 30 seconds, then back on
• Contact Ohme support if charger is more than 2 versions behind current

Zappi (V2)

Update Method: Manual via myenergi app

Zappi Update Process:

1. Open myenergi app (iOS/Android)
2. Select your Zappi from device list
3. Tap "Menu" (three lines) → "Settings"
4. Select "Software Update"
5. App checks myenergi servers for available updates
6. If update available, tap "Download and Install"
7. Update downloads to Zappi (5-10 minutes)
8. Zappi automatically installs and reboots
9. Display shows "Update Complete"

Alternative: Hub Update (if you have myenergi hub):

1. Updates can also be delivered via myenergi hub (wired connection)
2. Hub automatically checks for updates daily
3. Pushes updates to Zappi overnight

Update Duration: 15-20 minutes Update Frequency: Every 3-4 months WiFi Required: Yes (or hub connection)

Zappi Physical Display: During update, Zappi's LED display shows:

• "Updating..." with progress bar
• Display may go blank briefly during reboot
• "Update Complete" when finished

Troubleshooting Zappi Updates:

• Ensure Zappi has WiFi or hub connection
• Don't start updates during charging session
• If update fails, wait 24 hours and retry
• Check myenergi website for known update issues
• Contact myenergi support (excellent UK-based team)

Hypervolt (Home 3.0)

Update Method: Automatic via WiFi with user consent

Hypervolt Update Process:

1. Hypervolt automatically detects available updates
2. Push notification sent to your smartphone: "Update Available"
3. Open Hypervolt app
4. Banner message at top: "Firmware Update Available"
5. Tap banner → "Update Now" or "Update Tonight"
6. If "Update Tonight", update installs at 2am
7. LED ring pulses during update
8. Charger reboots (2 minutes)
9. Notification: "Update Complete"

Update Duration: 10-12 minutes Update Frequency: Every 2-3 months WiFi Required: Yes

Hypervolt Update Features:

• Can defer update for up to 7 days (not recommended)
• Update history viewable in app settings
• Changelog shows what's new in each update

Troubleshooting Hypervolt Updates:

• If update notification doesn't appear, check WiFi connection
• Force app refresh: close app completely and reopen
• Manually check for updates: Settings → Charger Info → Check for Updates
• If persistent issues, contact Hypervolt UK support (Birmingham office)

Pod Point (Solo 3)

Update Method: Automatic via WiFi

Pod Point Update Process:

1. Pod Point checks for updates automatically
2. When available, update downloads in background
3. Installation happens during off-peak hours (midnight-5am)
4. Charger LED briefly flashes amber during update
5. Update completes silently—no notification
6. Check firmware version in app to confirm

Checking Firmware Version:

1. Open Pod Point app
2. Select your Solo 3
3. Tap "Settings" → "About"
4. Note "Firmware Version"

Update Duration: 8-12 minutes (automatic) Update Frequency: Monthly WiFi Required: Yes

Pod Point Update Approach: Similar to Ohme, Pod Point prioritises seamless background updates with minimal user disruption.

Troubleshooting Pod Point Updates:

• Verify WiFi connection in app
• Restart charger if firmware seems outdated
• Check Pod Point's website for latest firmware version
• Contact customer support if 3+ versions behind

EO (Mini Pro 3)

Update Method: Semi-automatic via app

EO Update Process:

1. EO app notifies you when update available: "New firmware available"
2. Open notification or go to app "Settings"
3. Tap "Update Firmware"
4. Charger downloads update (5-10 minutes)
5. Installation begins automatically
6. LED indicators show update progress
7. Charger reboots when complete
8. Confirmation message in app

Update Duration: 12-15 minutes Update Frequency: Every 3-4 months WiFi Required: Yes

Troubleshooting EO Updates:

• Ensure charger is not actively charging during update
• Check WiFi signal strength at charger location
• If update stalls, wait 30 minutes then restart charger
• Contact EO support (UK-based in Cambridge)

Andersen (A2)

Update Method: Automatic via WiFi (premium service)

Andersen Update Process:

1. Andersen proactively monitors all installed chargers
2. Updates deployed remotely by Andersen engineers
3. No user action required
4. Updates typically happen 2-4am
5. Confirmation email sent after successful update
6. Charger remains fully functional throughout

Update Duration: 10-15 minutes Update Frequency: As needed (typically quarterly) WiFi Required: Yes

Premium Service: Andersen's premium price (£1,450-£1,850) includes white-glove update service. Their team manages all firmware maintenance proactively.

Troubleshooting Failed Updates

Common Update Failure Causes

1. Weak WiFi Signal

Problem: Update download fails or corrupts due to poor connectivity

Solutions:

• Move WiFi router closer to charger
• Install WiFi extender (£20-£50) to improve signal
• Use powerline adapter with WiFi capability (£40-£80)
• Consider wired Ethernet connection if charger supports it
• Upgrade to mesh WiFi system for whole-home coverage

Testing WiFi Signal:

• Stand at charger location with smartphone
• Check WiFi signal strength (full bars needed)
• Run speed test: minimum 2Mbps download required
• If 1-2 bars or <2Mbps, signal is too weak

2. Power Interruption During Update

Problem: Power cut or circuit breaker trip during update corrupts firmware

Symptoms:

• Charger won't turn on after failed update
• Stuck in boot loop (constantly restarting)
• Unresponsive to app commands
• LED indicators show error pattern

Solutions:

• Most chargers have recovery mode (enter by holding physical button during power-on)
• Contact manufacturer support—may need reflash
• In worst case, unit may need replacement under warranty

Prevention:

• Don't update during storms (lightning risk)
• Ensure stable mains electricity
• Don't switch off power during visible update progress

3. Insufficient Storage Space

Problem: Charger's internal memory full, can't download update

Solutions:

• Clear session history in app (frees storage)
• Factory reset charger (last resort—backs up settings first)
• Contact manufacturer if persistent

4. Firewall or Router Blocking

Problem: Home router security settings block charger's update servers

Solutions:

• Check router firewall settings
• Whitelist charger manufacturer's update servers
• Temporarily disable advanced security for update (re-enable after)
• Contact ISP if corporate/business internet connection

5. Outdated App Version

Problem: Old app version incompatible with new charger firmware

Solutions:

• Update charger app to latest version (App Store/Google Play)
• Clear app cache and data
• Uninstall and reinstall app
• Ensure smartphone OS is up to date

Recovery Procedures

Generic Recovery Steps (works for most brands):

1. Soft Reset

   • Switch off charger at consumer unit
   • Wait 60 seconds
   • Switch back on
   • Wait 3-5 minutes for full boot
   • Check if charger responsive

2. Factory Reset (preserves hardware, clears software)

   • Consult manufacturer instructions (usually hold button 10+ seconds)
   • Charger resets to factory firmware
   • Reconfigure WiFi and settings
   • Attempt update again

3. Recovery Mode (advanced)

   • Enter recovery mode (manufacturer-specific button sequence)
   • Charger downloads recovery firmware from servers
   • Automatically reinstalls base operating system
   • May take 20-30 minutes

4. Contact Support (if above steps fail)

   • Call manufacturer technical support
   • Have charger serial number ready
   • Describe update failure symptoms
   • May require remote diagnostics
   • Warranty replacement if hardware fault

Brand-Specific Recovery

Wallbox Recovery:

• Hold button on charger for 15 seconds to enter recovery
• Charger downloads base firmware
• Follow app prompts to complete recovery

Ohme Recovery:

• Contact Ohme support (they handle recoveries remotely)
• May push recovery firmware from cloud
• Rarely requires hardware replacement

Zappi Recovery:

• Use myenergi hub for firmware recovery (if installed)
• Contact myenergi support for manual recovery
• Excellent UK support team (Cornwall-based)

Best Practices for Software Maintenance

Enable Automatic Updates

Why Automatic Updates Are Best:

• Never miss critical security patches
• Always have latest features
• Updates happen during off-peak hours (no disruption)
• Manufacturer tests timing to avoid charging conflicts

How to Enable:

• Check app settings for "Automatic Updates" toggle
• Enable push notifications for update alerts
• Ensure charger has reliable WiFi connection

When to Disable Automatic Updates:

• If you have specific compatibility requirements (rare)
• During extended holiday when charger unused
• If experiencing repeated failed updates (troubleshoot first)

Regular Firmware Checks

Even with automatic updates, periodic manual checks ensure you're current:

Monthly Check Routine:

1. Open charger app
2. Navigate to Settings → About or Charger Info
3. Note firmware version number
4. Check manufacturer website for latest version
5. If behind, manually trigger update

What Version Numbers Mean:

• Format: v2.14.3 = Major.Minor.Patch
• Major (v2): Significant new features
• Minor (.14): Smaller features and improvements
• Patch (.3): Bug fixes and security patches

Example: If latest is v2.14.3 and you're on v2.12.1:

• You're 2 minor versions behind
• Missing recent features and fixes
• Trigger manual update immediately

WiFi Network Maintenance

Ensure Reliable Connectivity:

• Position router optimally for charger coverage
• Use 2.4GHz WiFi (better range than 5GHz)
• Avoid changing WiFi password without updating charger
• Maintain router firmware updates
• Monitor for WiFi disconnections in app

WiFi Password Changes: If you change home WiFi password:

1. Update password in charger app settings
2. Trigger manual update to restore cloud connection
3. Verify charger reconnected (app shows "Online")

Document Your Update History

Why Keep Records:

• Track when updates performed
• Identify patterns if problems arise
• Useful for warranty claims or support tickets
• Understand feature changes over time

What to Record:

• Date of update
• Old firmware version → New firmware version
• Any issues during update
• New features or changes noticed
• Notes on performance before/after

Simple Logging Method: Create note on smartphone or spreadsheet:

05/02/2025: Wallbox v2.12.1 → v2.14.3
- Update took 12 minutes, no issues
- New feature: Enhanced solar mode
- Charging seems faster/more responsive

Future-Proofing Your Charging Infrastructure

Choosing Update-Friendly Chargers

When buying a new charger, consider update track record:

Green Flags (Good Update Support):

• Manufacturer releases updates regularly (monthly/quarterly)
• Active user community discussing updates
• Transparent changelog published
• UK-based support team
• Good warranty (3+ years)
• Established brand with longevity

Red Flags (Poor Update Support):

• No updates in 12+ months
• Unknown/new brand with no track record
• No online presence or user community
• Company based outside Europe (slow EU/UK compliance)
• Short warranty (1 year or less)
• Frequent complaints about abandoned products

Recommended Brands for Long-Term Support:

1. Ohme - Excellent update frequency and transparency
2. Wallbox - Strong EU/UK presence, regular updates
3. Zappi/myenergi - Reliable UK company, solid updates
4. Hypervolt - British company, good support commitment
5. Pod Point - Established UK brand, regular updates

OCPP Compliance

What Is OCPP? Open Charge Point Protocol is an open standard allowing chargers to communicate with any network management system.

Why OCPP Matters:

• Prevents vendor lock-in
• Allows switching management platforms
• Future-proofs against manufacturer discontinuation
• Essential for commercial/workplace charging

OCPP Support in UK Residential Chargers:

• Most smart chargers now include OCPP 1.6 or 2.0
• Check specifications before purchase
• May require activation/configuration

Example: If your charger manufacturer stops updating firmware, OCPP allows you to switch to third-party management platform for continued smart features.

Preparing for V2G (Vehicle-to-Grid)

V2G is coming to UK homes by 2026-2027:

What Is V2G? Vehicle-to-Grid technology allows your EV battery to export electricity back to your home or national grid, earning money during peak demand periods.

Firmware Requirements:

• Bidirectional charging capability (hardware + software)
• DNO integration protocols
• Dynamic grid pricing algorithms
• Smart export tariff compatibility

Future-Proofing for V2G:

• Choose chargers from manufacturers actively developing V2G
• Ensure charger has sufficient processing power for bidirectional control
• Verify manufacturer committed to V2G updates (check roadmap)
• British brands (Hypervolt, Ohme, Wallbox UK) likely to support UK V2G rollout first

Current V2G Status:

• Limited UK trial programs (Octopus Energy, OVO)
• Firmware updates will enable V2G when infrastructure ready
• Most 2024-2025 smart chargers will gain V2G via update (no hardware change)

Conclusion: The Importance of Staying Updated

EV charger software updates are not optional maintenance—they're essential for security, functionality, and future-proofing your £1,000+ investment. Just as you wouldn't skip smartphone or computer updates, your EV charger deserves the same attention.

Key Takeaways:

1. Enable automatic updates on your charger to ensure you never miss critical security patches or new features

2. Check firmware monthly to verify your charger is current, even with automatic updates enabled

3. Maintain strong WiFi connectivity at your charger location—weak signal is the #1 cause of failed updates

4. Choose update-friendly brands with strong UK presence and track records of regular firmware improvements

5. Document your updates to track performance changes and support troubleshooting if issues arise

6. Future-proof with OCPP compliance to avoid vendor lock-in and prepare for evolving smart grid integration

The Bottom Line: A well-maintained EV charger with current firmware will serve you reliably for 10-15 years, save money through improved efficiency and smart tariff integration, and seamlessly adopt future technologies like V2G. Neglecting updates risks security vulnerabilities, missed features, and potential obsolescence as UK energy infrastructure evolves.

Take 10 minutes today to check your charger's firmware version, enable automatic updates, and ensure your charging infrastructure is ready for the future of UK home EV charging.

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This guide reflects UK EV charger firmware update practices as of February 2025. Update procedures and features subject to change. Always consult your charger manufacturer's official documentation for device-specific instructions.