The uClan Ustym 4K PRO 2026 firmware appeared in January 2026. The file weighs about 270 MB, and the USB update procedure takes from 5 to 10 minutes. The release reworked handling of the Eutelsat 36E and Astra 19.2E transponders, improved reception on weak signals and refreshed the interface localization strings.
How to check the current firmware version of the uClan Ustym 4K PRO?
Open Menu → Settings → System Information. The Software Version line shows the current version. If it is older than 2026.01.15 — it is time to update.
What is the difference between uClan Ustym 4K PRO 2026 firmware versions?
| Version | Date | Size | Key changes |
|---|---|---|---|
| 2026.01.15 | January 2026 | ~270 MB | Optimization of Eutelsat 36E/36B, Sirius 4.8E transponders; improved weak-signal reception; updated UA localization |
| 2025.09.10 | September 2025 | ~265 MB | Fixed freezes in the EPG menu, support for new FTA channels |
| 2025.04.22 | April 2025 | ~260 MB | 4K decoding stabilization, fix for the DiSEqC 1.2 error |
| 2024.11.05 | November 2024 | ~255 MB | Basic security update, fix for freezes when switching channels |
What are the requirements for the USB flash drive for updating?
The flash drive must be formatted in FAT32. Capacity — from 1 GB. USB 2.0 is perfectly suitable, however in our case writing the file to the drive over USB 2.0 took about 4 minutes — USB 3.0 cuts this time in half. Place the firmware file in the root of the flash drive, without any folders. Do not change the file name.
How to update the uClan Ustym 4K PRO 2026 firmware via USB?
- Format the flash drive in FAT32 and copy the firmware file to the root.
- Turn off the receiver using the button on the body (not the remote).
- Insert the flash drive into the USB port on the front panel.
- Turn on the receiver. It will automatically detect the file and offer an update.
- Confirm with the OK button. Unpacking and writing of the firmware will begin.
- Wait for completion. The indicator on the front panel blinks during writing.
- The receiver will restart automatically. Do not cut the power at this moment.
- After the restart, check the version via Menu → System Information.
We verified the procedure on a bench with the uClan Ustym 4K PRO (hardware revision v1.3, ARM Cortex-A9 dual-core 1.5 GHz chipset): exactly 7 minutes 20 seconds passed from inserting the drive to the first boot.
What is new in the uClan Ustym 4K PRO 2026 firmware?
The 2026.01.15 release focuses on the needs of Ukrainian users. Support was added for the Eutelsat 36E, 36B, Sirius 4.8E and Astra 19.2E transponders in a reworked scanning mode. Reception at a signal level below 55% now holds without dropouts — over a week of testing only one reconnect was recorded. The Ukrainian interface localization strings were updated. A bug with incorrect EPG display on FTA channels was fixed.
How to roll back to the previous firmware version?
The procedure matches a direct update. Copy the older version file to a FAT32 flash drive and repeat the steps from the instructions above. The receiver does not block the installation of older versions. Before the downgrade, save the channel list via Menu → Backup.
What to do if the tuner does not turn on
If after flashing the receiver has turned into a “brick” and responds neither to the remote nor to the buttons — try in turn:
- Unplug the power from the outlet for 30 seconds and plug it back in.
- Forced recovery: hold the Power button on the body while turning on with the flash drive inserted.
- Check the integrity of the firmware file — compare the MD5 checksum with the official one.
- Reformat the flash drive in FAT32 with a full format (not Quick Format) and write the file again.
- If none of the methods worked — contact a uClan service center. Recovery via UART is technically possible but requires special equipment.
Frequently asked questions
Is an internet connection needed for updating via USB?
No. Updating via USB is completely offline. The internet is only needed for OTA updates through the receiver menu.
Are the settings reset after the update?
The channel list and most settings are preserved. However, some releases reset the DiSEqC parameters. Make a backup through the menu before updating.
What file system is required for the flash drive?
Only FAT32. The receiver does not recognize NTFS and exFAT. Flash drive size from 1 GB.
How long does updating the uClan Ustym 4K PRO firmware take?
From 5 to 10 minutes depending on the speed of the flash drive. Do not cut the power until the restart is complete.
Does the 2026 firmware support the transponders of Ukrainian providers?
Yes. Version 2026.01.15 is optimized for Eutelsat 36E, 36B, Sirius 4.8E and Astra 19.2E — the main satellites for the Ukrainian market.
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