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Digi International has released firmware version 25.5.52.21 for a broad range of their industrial routers and cellular gateways, expanding support across the Digi IX, EX, and TX series. This recommended (non-LTS) release introduces powerful new features like Enhanced Location Services and 5G Network Slicing, alongside system optimizations and critical bug fixes that improve performance and stability.
Whether you’re managing fixed-site, mobile, or mission-critical applications, this firmware update is worth considering to ensure your devices stay secure, connected, and operating at peak efficiency.
Supported Hardware for Digi Firmware Version 25.5.52.21
This firmware release supports the following Digi platforms:
Digi IX Series
- Digi IX10
- Digi IX20 / IX20W
- Digi IX30
- Digi IX40
Digi EX Series
- Digi EX12
- Digi EX15
- Digi EX50 (including 5G models)
Digi TX Series
- Digi TX54
- Digi TX64
- Digi TX64 5G
This extensive compatibility makes it easier to streamline updates across your entire Digi hardware ecosystem.
Key Features in Digi Firmware Version 25.5.52.21
Enhanced Location Services
This new feature delivers near real-time location tracking and cellular signal quality insights for GNSS/GPS-capable devices.
Benefits:
- Location updates as frequent as every 10 seconds
- Historical signal strength mapping by location
- Optimized for mobile assets such as buses, trains, and field equipment
- Easier troubleshooting of coverage gaps and dead zones
New in Digi Remote Manager (DRM):
- Signal quality, carrier, and connection status overlays on the map
- Carrier, provider, and signal strength filters
- Playback of device movement and connectivity history
- Split-view support for dual-modem devices
Enhanced Location Services can be enabled in DigiRM → Settings → Monitoring → Enhanced Location Services with flexible reporting intervals from 10 seconds to 1 hour.
5G Network Slicing for T-Mobile (Phase 1)
Firmware 25.5.52.21 introduces 5G Network Slicing support on compatible DAL OS devices with 5G Standalone (SA) capability.
Key Advantages:
- Enables a single SIM to support multiple virtual network slices
- Supports carrier-side traffic prioritization
- Eliminates the need for multiple modems or SIM cards
- Ideal for robotics, edge computing, public safety, and more
Configuration Highlights:
- Set the number of modem interfaces
- Select slice types (eMBB, URLLC, Massive IoT)
- Input Slice Differentiator provided by the carrier
- Each slice is visible as a separate WAN interface in Digi Remote Manager
Up to eight slices per SIM are supported based on carrier provisioning.
Additional Enhancements
- Interactive login support added for serial Autoconnect
- Reduced CPU usage in DigiRM query state reporting
- Improved health metrics to stop sampling when disabled
- System now reliably stores the reboot reason at boot
- DigiRM’s query_state command now supports a “live” refresh option
- CLI-formatted settings are now included in the system support report
- Support for the AView cloud management system has been removed
Resolved Issues
Key fixes in this release include:
- Proper Wireguard key generation via Digi Remote Manager
- Reliable location updates at fast intervals
- IPsec tunnel query state and failback stability improvements
- Correct calculation of cellular TX and RX bytes
- Faster initial cellular connection by eliminating unnecessary firmware checks
- Prevented SNMP logs from filling system storage
- Cellular data statistics are now retained after reboot
- Resolved system log errors related to missing date fields
Firmware Update Best Practices
Digi strongly recommends the following update procedures to ensure a smooth and reliable firmware deployment:
1. Always Test First
Before deploying to production devices, test firmware updates in a controlled environment with your actual applications and configurations.
2. Apply Updates in the Correct Sequence
Follow this order for firmware and system updates:
- Device firmware
- Modem firmware
- Configuration
- Application software
This minimizes conflicts and ensures system consistency.
3. Use Digi Remote Manager for Scalable Updates
Digi Remote Manager (DRM) is Digi’s preferred solution for managing large device fleets. It enables automated Digi firmware rollouts, real-time monitoring, and configuration management across all your supported Digi hardware.
For details, see the Digi Remote Manager User Guide.
4. Manual Update Process (One Device at a Time)
If you prefer to update manually:
- Log in to the device’s Web UI.
- Go to System > Firmware Update.
- Select the Download from Server tab.
- Choose the appropriate firmware version.
- Click Update Firmware.
- The device will automatically reboot after the update is complete.
Digi’s Technical Support and Resources
Digi offers a comprehensive support ecosystem to help you succeed:
- Product Documentation
- Firmware and Driver Downloads
- Knowledge Base Articles
- Peer-to-Peer Support Forums
- Professional Services and Priority Support Packages
Visit Digi Support for more details or to contact their Technical Support team.
Final Thoughts on Digi Firmware Version 25.5.52.21
With this firmware release, Digi is empowering organizations to gain deeper visibility into their assets, leverage advanced 5G network slicing, and enjoy system-level optimizations that make device management smoother and more efficient.
Whether you’re using Digi IX, EX, or TX series devices, firmware version 25.5.52.21 is an excellent step forward. By following Digi’s firmware best practices and taking advantage of Digi Remote Manager, you can ensure your network remains secure, stable, and ready for the future.
If you need assistance with firmware planning, device compatibility, or deploying updates, the 5Gstore team is ready to help. Contact us today for expert advice and support.
