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wiki:firmware:lastversion
Table of Contents
KerOS firmware v5.12.0 (November 2025)
Changes from v5.11.0
Release corrections
- Lighten some unnecessary logs which were in verbose mode
- Prevent Basicstation and lorad from restarting each other in loop
Evolutions
- Fix various security vulnerabilities
- CVE-2024-32384
- CVE-2024-39148
- CVE-2024-32388
- Remove LNS credentials from debug logs
- Set temperature limit to 95°C on iBTS before cooldown
- Lower MTU for cellular communications down to 1420
- Extend network-monitoring to handle new unstabilities experienced on the field
Restrictions
- IPSec is not yet supported
- Some issues with the Wi-Fi interface (instabilities, no fallback…) on Wirnet iFemtoCell
- When upgrading from KerOS firmware 4.x, all trustzone secrets are lost
- When upgrading from KerOS FW 4.3.3, a hardware reset is necessary for FW 5.x burner to correctly detect USB
- Update status for an update from KerOS FW 5.1.x, FW 5.2.x or FW 5.3.x is in error, but the update is working fine
- No more support of GSM dongles (please contact Kerlink if you plan to use one)
- When iZepto-E is powered by a computer, it cannot benefit from the connection of a gateway in router mode
- The activation/deactivation of the GSM from the local web interface takes some time to execute, so previous activation status remains displayed for a while. A page refresh after a delay of 15-20s after the action shows the right status
Firmware
Compatibility
- Compatible with Wirnet™ i-series gateways (Wirnet iBTS, Wirnet iFemtoCell, Wirnet iStation, Wirnet iFemtoCell-evolution, Wirnet iZeptoCell Ethernet, Wirnet iZeptoCell Cellular).
Software
- Compatible with Wirnet™ i-series gateways secured with Kerlink Production fuses or without any fuses flashed.
- Regular update (
keros.ipk) is incompatible with firmware older than v5.x
- To upgrade the system from KerOS version 4.3.3 to KerOS version 5.x the use of a liveburner is MANDATORY. Two possibilities are available:
- Upgrade with a custom liveburner. It allows to keep some elements like gateway configuration. To use a custom liveburner, please refer to the dedicated page: Major version upgrade with a custom liveburner.
- Upgrade with a regular liveburner (erasing the whole partition to reinstall the firmware)
Delivery
The firmware is released in two formats: KerOS and Liveburner.
KerOS : Update the Firmware
To update the firmware from v5.x, the regular update procedure can be used.
See system upgrade page.
Liveburner : Reset the Firmware of the product
- Update stock version with FW 5.12.0.
- Reset the default password on your gateway.
- Erase the whole partition to reinstall the firmware.
Download
- KerOS IPK 5.12.0:keros_5.12.0_klkgw-signed.ipk md5:
0f890bd1dde1d43e8ea1b2e1961257ec - Liveburner IPK 5.12.0: liveburner_5.12.0_klkgw-signed.ipk md5:
ef534a01d5eb4ad44533d557ef98a00a - Liveburner IPK 4.3.3-2: liveburner_4.3.3-2_klkgw-signed.ipk md5:
12CFEFB8D4630A34AA90C77E6C73A193 - Custom liveburner IPK 5.12.0: custom-liveburner_5.12.0_klkgw-signed.ipk md5:
d425f32b3d92f8fff4eb762a92c66a85 - Update liveburner package: update_liveburner_package-v5.12.0.tar.gz md5:
46588b0de902679e048f171eafe02002 - 64-bit toolchain: poky-glibc-x86_64-keros-toolchain-klkgw-5.12.0.sh md5:
dfeb4c04b2a3855241a8f17c2ecfe0df
wiki/firmware/lastversion.txt · Last modified: 2025/11/20 09:04 by vsz
