XICHTEE LMPSH-IP / HRNL-25W firmware v1.3.0 Release, build 310
Release build date: 2026-10-10

The public ZIP URL keeps its historical firmware1.1.0.zip filename.
Its contents are firmware v1.3.0 Release.

For a normal firmware update, use Build/ethernet_update.uf2. Save a
protected configuration backup first and compare its SHA-256 below. In the
device browser interface, choose FIRMWARE UPDATE, UPLOAD, wait for staging
to finish, then APPLY & REBOOT. Keep power and network stable. Allow boot
confirmation to finish and verify Device Information shows v1.3.0 build 310.
See the current XICHTEE User Manual, Firmware update section, for details.

ethernet_update_0.uf2 at the ZIP root is an identical compatibility copy
of Build/ethernet_update.uf2 for users following the previous package layout.

The other Build files are the unchanged artifacts from the official release:
ethernet_boot_safe.uf2, ethernet_factory.uf2, ethernet_slot_a.uf2 and
ethernet_slot_b.uf2. These are physical USB/BOOTSEL service artifacts,
not ordinary browser-update files. Bootloader installation requires physical
service and stable power; it is not transactional. Application OTA does not
upgrade the bootloader. Use the appropriate artifact only under the
authorised device recovery/service procedure.

SHA256SUMS.txt lists SHA-256 checksums for every included UF2.
