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Nie, dziękuję Przekieruj mnie tamHow to reset the remote
• For most STANG ST-620 / ST-620+ universal remotes a full factory reset is done by entering the code 981 after entering Setup mode – see the exact sequences below.
• If the remote has GREEN + YELLOW keys, press both, wait for the LED to blink twice, then type 981.
• Always pull the batteries first and re-insert fresh ones before starting; this avoids partial resets.
Why reset?
• Clears all stored device codes, learned keys and macros.
• Solves erratic behaviour caused by corrupt EEPROM data or low-battery brown-outs.
• Mandatory before repurposing the remote for a new TV/STB set.
Firmware families found in the ST-620
Because the ST-620 is sold worldwide under different batches, you may have to try the sequence corresponding to the LED feedback you observe.
EEPROM organisation
• Reset code 981 issues an internal EE_CLR that zeros the device table and macro tables.
• Code 991 only clears the device table (no macros) – useful for partial resets.
• A power-cycle without a code merely releases stuck state machines; it does not touch EEPROM.
• 2023-2024 production runs switched to the UEI “EZ-RC” core; 981 is now standard.
• Some resellers ship the same plastic shell with a non-UEI SOC; those need the older 991 script.
• Low-dropout battery management was added in late-2022 batches; therefore, spurious resets due to voltage sag are less common now.
Soft (power-cycle) reset
Factory (hard) reset procedures (perform only one!)
| Firmware / Key layout | Enter Programming Mode | Code to dial | LED response | What is erased? |
|---|---|---|---|---|
| Coloured keys (GREEN + YELLOW present) | Hold GREEN + YELLOW ~5 s | 9 8 1 | 4 blinks | Everything |
| No coloured keys, has SETUP | Hold SETUP until LED steady | 9 8 1 | 2-4 blinks | Everything |
| Older clone / “ST-620 R00” | Hold SETUP until LED steady | 9 9 1 | 2 blinks | Device codes only |
| R01/R02 “2 + 8” variant | Pull one battery → press any key → re-insert battery; within 6 s hold 2 + 8 until 2 blinks | 9 8 1 | 4 blinks | Everything |
After any hard reset
• Test Power, Vol± – they should no longer operate your TV.
• Re-enter device codes or run auto-search per the manual.
• Factory resetting does not violate DRM or service-provider terms; it merely clears user data.
• Do not attempt to reflash firmware obtained from unofficial sources; this may infringe vendor copyrights and void regional type approval.
Implementation tips
• Use fresh 1.5 V alkalines; carbon-zinc cells often dip below 1.3 V under load and cause half-executed sequences.
• Count LED blinks carefully – they are the only confirmation channel.
• If nothing blinks, inspect battery contacts for sulphation and clean with IPA.
• Keep a printed copy of your device codes; they will be lost.
Possible challenges & mitigation
• Mixed firmware in stock – work through the table above systematically.
• Stuck keys from beverage spills – reset won’t help; open the shell and clean the rubber mats.
• IR LED failure – verify with smartphone camera in video mode; a working IR diode glows faint purple.
• Some set-top boxes supplied by ISPs lock the remote to a “subscription mode”; a full 981 reset re-enables TV programming but also wipes ISP settings – you may need to pair it again.
• A handful of ST-620 clones use 4-digit device codes; those may require 9 8 0 instead of 9 8 1 (rare).
• Download the genuine UEI “Enhanced Setup Code List” (rev. 2024-Q1) – covers new Hisense & TCL codes not in early ST-620 leaflets.
• Investigate BLE-IR hybrid remotes; many 2025 TV models will drop legacy IR for Bluetooth – worth considering an upgrade.
• Explore open-source tools like RemoteMaster for PC-based macro editing once you are comfortable with resets.
A factory reset of the STANG ST-620 is normally achieved by holding the appropriate mode key(s) until the LED lights, then typing 981 (or 991 on very old clones). Use a soft reset first to clear minor glitches. Always finish with fresh batteries and be ready to reprogram your device codes.
