- Networks
- Smart lighting and home hubs
LED flashing to solid yellow
Samsung LED flashing to solid yellow: hub factory reset
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
On Samsung SmartThings Hub (2018) and Hub v2 (2015) units, seeing LED flashing to solid yellow while holding the RESET button signals entry into a factory reset, which erases all paired lights and settings. Try a standard reboot first and release the button promptly when yellow turns solid.
Safety first
Stop and check this first
- A factory reset returns the SmartThings Hub to original factory settings and erases all data including device connections, scenes, and automations; for hubs on firmware below 17.11, Samsung requires removing all devices and app configurations before resetting.
- Never open the hub, smart bulb, or power supply enclosure (technician only), and leave hardwired fixtures, wall switches, dimmers, and mains wiring to a licensed electrician; if a device is hot, swollen, smoking, or smells of burning, unplug it if safe and stop using it.
Safe checks you can perform
- Try a standard reboot first to refresh settings without erasing pairings
- Match your hub model and release RESET immediately at solid yellow
- Confirm blinking red and green LED before re-adding the hub in SmartThings
Leave these tasks to a qualified professional
- Do not attempt this professional task: Verify hub hardware generation, pre-17.11 cleanup rules, and RESET release timing
- Do not attempt this professional task: Confirm red-and-green setup readiness or submit SmartThings system logs
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Verify hub hardware generation, pre-17.11 cleanup rules, and RESET release timing
What they doThe technician identifies whether the unit is a SmartThings Hub (2018), Hub v2 (2015), or SmartThings Wifi/Connect Home, checks if firmware below 17.11 requires removing app configurations first, and verifies quick release at LED flashing to solid yellow.
They must show youthe hub model label and the LED transition from flashing to solid yellow during the reset procedure.
In writingverified hub model, confirmation that the owner was advised of full data erasure, and outcome of the solid yellow reset step.
Confirm red-and-green setup readiness or submit SmartThings system logs
What they doFollowing the reset, the technician verifies that the hub indicator blinks red and green for onboarding under Devices > Add (+) > By brand > Samsung > Smart Home Hub, or sends system logs through the app if setup cannot proceed.
They must show youthe red-and-green blinking readiness indicator or the Send feedback screen with system log data checked.
In writingfinal onboarding status in the SmartThings app and diagnostic log submission reference if escalated.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Try a standard reboot first to refresh settings without erasing pairings
- Who:
- you, before pressing the recessed RESET button on your Samsung SmartThings Hub.
- How:
- check whether a simple Reboot by unplugging and reconnecting the power cable per ANS10006823 resolves the issue, because a reboot refreshes settings without deleting data or light connections.
- Result that matters:
- restore hub operation without performing a destructive factory reset.
- If the hub recovers after a standard power reboot:
- do not proceed with a factory reset.
- If a full factory reset documented by Samsung is required:
- note that all pairings and configurations will be erased and check whether firmware is below 17.11 first.
- Evidence to keep:
- hub status after the standard reboot and firmware version check if below 17.11.
Evidence: Factory reset or reboot your SmartThings Hub
Match your hub model and release RESET immediately at solid yellow
- Who:
- you, only if you intentionally choose to factory reset the hub knowing it erases all device connections and settings.
- How:
- keep in mind that a factory reset erases all pairings; on SmartThings Hub (2018, IM6001-V3P) hold the RESET pin while reconnecting power and release immediately when you see LED flashing to solid yellow, or on Hub v2 hold the red button for 30 seconds until solid yellow.
- Result that matters:
- initiate the official factory reset sequence in ANS10006823 without holding the button too long.
- If the reset starts and the indicator later blinks red and green for setup:
- proceed to add the hub in the app.
- If the reset does not initiate because the button was held past the solid yellow cue:
- repeat with an immediate release or contact support.
- Evidence to keep:
- exact model number on the hub label (IM6001-V3P or STH-ETH) and LED behavior after releasing RESET.
Evidence: Factory reset or reboot your SmartThings Hub · Set up your SmartThings Hub, SmartThings Wifi, or Connect Home
Confirm blinking red and green LED before re-adding the hub in SmartThings
- Who:
- you, using the SmartThings app after the factory reset finishes.
- How:
- wait for the indicator light to flash green at startup and then blink red and green when ready; in SmartThings go to Devices > Add (+) > Add device > By brand > Samsung > Smart Home Hub to set it up.
- Result that matters:
- re-register the reset hub in your location following ANS10006903.
- If the hub completes setup and finishes any firmware download:
- re-pair your smart lights.
- If the indicator never blinks red and green or setup fails:
- submit system log data via Contact us > Send feedback.
- Evidence to keep:
- screenshot of the Smart Home Hub setup screen and observed LED color pattern.
Evidence: Cómo obtener soporte al cliente en SmartThings · Set up your SmartThings Hub, SmartThings Wifi, or Connect Home
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Networks
- Brand
- Samsung
- Product type
- Smart lighting and home hubs
Known code variants
- LED changes from flashing to solid yellow
- LED pasa de parpadear a amarillo fijo
- Reset button solid yellow
- Reset pin solid yellow LED
- SmartThings Hub LED amarillo fijo
- SmartThings Hub solid yellow LED
What it means
Samsung official guides "Factory reset or reboot your SmartThings Hub" (ANS10006823) and "Set up your SmartThings Hub, SmartThings Wifi, or Connect Home" (ANS10006903) for SmartThings Hub (2018, IM6001-V3P) and SmartThings Hub v2 (2015, STH-ETH) explain that the transition from LED flashing to solid yellow indicates when to release the reset button to trigger a factory reset. Other models such as SmartThings Wifi or Connect Home turn the LED off instead, and this light transition alone never proves a hardware part is faulty.
Warnings and stop conditions
- Highsource verified
A factory reset returns the SmartThings Hub to original factory settings and erases all data including device connections, scenes, and automations; for hubs on firmware below 17.11, Samsung requires removing all devices and app configurations before resetting.
Evidence: Factory reset or reboot your SmartThings Hub
- Mediumsource verified
Never open the hub, smart bulb, or power supply enclosure (technician only), and leave hardwired fixtures, wall switches, dimmers, and mains wiring to a licensed electrician; if a device is hot, swollen, smoking, or smells of burning, unplug it if safe and stop using it.
Evidence: Factory reset or reboot your SmartThings Hub
Symptoms and causes
Probable causes · in order
- Holding the RESET pin button while reconnecting power on SmartThings Hub (2018)Common
Samsung states in ANS10006823 that holding down the recessed RESET button while plugging in power causes the LED to change from flashing to solid yellow.
Evidence: Factory reset or reboot your SmartThings Hub
- Holding the rear red button for 30 seconds on SmartThings Hub v2 (2015)Possible
On Hub v2 with power and Ethernet connected, pressing and holding the red button at the back for 30 seconds turns the LED solid yellow per ANS10006823.
Evidence: Factory reset or reboot your SmartThings Hub
- Delayed release of the RESET button after the LED turns solid yellowPossible
Samsung notes in ANS10006823 that a quick release once the LED changes from flashing to solid yellow is crucial, otherwise the reset may not initiate.
Evidence: Factory reset or reboot your SmartThings Hub
Virtual technician
Does LED flashing to solid yellow still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Cómo obtener soporte al cliente en SmartThings
Samsung · 2026 · official_doc
- 2
Factory reset or reboot your SmartThings Hub
Samsung · 2026 · official_doc
- 3
Set up your SmartThings Hub, SmartThings Wifi, or Connect Home
Samsung · 2026 · official_doc
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