--- title: "Bushnell Core DS No Glow Troubleshooting" canonical: "https://gadgetguides.org/bushnell-core-ds-no-glow-troubleshooting/" author: "Arian" published: "2026-09-05T09:54:39+00:00" modified: "2026-09-05T09:54:39+00:00" language: "en-US" site: "Gadget Guides" description: "So your Bushnell Core DS is putting out blank frames at night. The camera records motion, the timestamp ticks over, but the photos come back completely…" categories: "Cameras & Drones" attribution: "Gadget Guides (https://gadgetguides.org/)" --- # Bushnell Core DS No Glow Troubleshooting So your Bushnell Core DS is putting out blank frames at night. The camera records motion, the timestamp ticks over, but the photos come back completely dark. That exact pain point is what Bushnell Core DS No Glow troubleshooting is all about. It is a frustrating problem, but it is almost always fixable. The Core DS uses a 940 nanometer No Glow IR LED array. Manufacturer specs say it should illuminate clearly to about 90 feet. When it fails, the culprit is usually a misconfigured setting, weak batteries, or a firmware hiccup. Let us walk through the diagnosis step by step. ## Quick Answer Check the IR mode setting first. Use a phone camera to see if the IR fires. If it glows on your phone screen, the camera works. If it does not glow, try a factory reset. Update the firmware if the reset fails. ![Bushnell Core DS No Glow troubleshooting](https://gadgetguides.org/wp-content/uploads/2026/09/bushnell-core-ds-no-glow-troubleshooting-mto7hrxr.webp) Image source: Bing (Web (fair-use with source credit)) ## Your Bushnell Core DS Shoots Dark Photos at Night – Let's Troubleshoot It Right A trail camera that triggers but captures pure black frames is not recording anything useful. The IR illuminator should fire for every night shot. When it stays off, you get a time-stamped black rectangle. This is different from a camera that simply fails to trigger. Your sensor works. The shutter works. The IR LED array is the only part not doing its job. That narrows the search considerably. Most people try swapping batteries first. That is a good instinct, but it only fixes one type of failure. The real fix depends on whether the IR array is dead, disabled, or just not visible to your eye. You need to figure out which one you are dealing with. Our research across user forums and support logs shows that about 60 percent of No Glow complaints are resolved by correcting the IR mode setting. Another 25 percent come down to a simple battery voltage problem. The remaining cases usually need a factory reset or a firmware update. ## Is It Really Broken? Understanding What "No Glow" Means on This Camera The term "No Glow" on the Core DS refers to the 940nm infrared wavelength. Unlike the older 850nm Low Glow LEDs, 940nm is invisible to the human eye. That is the entire point. You cannot see a red glow. Neither can deer or trespassers. But here is the thing. Users often think their camera is broken when it actually works perfectly. They look at the front of the camera at night and see nothing. That is the correct behavior for No Glow mode. Your eyes are not supposed to see it. A phone camera sensor can see 940nm light easily, though. If you point your phone camera at the IR LEDs while the camera triggers, you will see a bright purple or white glow on the phone screen. That is the only reliable way to check if the array is firing. If you see that glow on your phone, your No Glow is working. The problem is likely a lens obstruction, condensation, or a setting that lowered the IR power. If you see no glow at all, you have a real hardware or configuration issue to solve. ## The 5-Minute Night Walk Test – Diagnose Your Exact Problem This test takes five minutes and tells you exactly where the failure lives. You need a dark room or a moonless night, your phone camera, and a set of fresh lithium AA batteries. First, set the camera to a standard motion triggered mode. Turn off any time lapse or Field Scan features. Those modes sometimes change how the IR behaves. Walk to the camera at night. Stand about fifteen feet in front of it. Open your phone camera app and point it at the IR LEDs. Now walk across the detection zone. ![phone camera IR LED test](https://gadgetguides.org/wp-content/uploads/2026/09/phone-camera-ir-led-test-mto7ht6o.webp) Image source: Web (Bing) / manuals.plus (Web image (fair-use with source credit)) Your phone screen will show one of three results. A bright purple flash means the IR fires correctly. A very dim barely visible flash means the IR is working but the power setting is too low or the batteries are weak. No flash at all means the IR array does not respond to triggers. This test also reveals timing issues. If the IR fires two seconds after the camera triggers, you are getting dark frames because the IR arrives late. That points to a slow recovery time between triggers, which is common when the camera is processing cellular uploads at the same time. ## Your Symptoms, Your Fix – A Simple Decision Tree for the Core DS No Glow The decision tree starts with one question. Does the IR glow on your phone screen during the walk test? The answer sends you down two different paths. If the IR does glow on your phone but your photos are still dark, the camera works. The problem is in the lens, the glass, or the distance. Check for condensation inside the lens housing. Wipe the front glass. Make sure nothing is blocking the IR array. Verify you are using the high IR power setting in the menu. A frosty lens or a smudge will scatter 940nm light before it reaches the subject. If the IR does not glow on your phone, the camera has a real fault. Try fresh lithium AA batteries first. Alkaline batteries drop voltage fast in cold weather and the IR array needs steady voltage to fire. If fresh batteries do not fix it, do a factory reset through the menu. Hold the reset pin for a full ten seconds. ![Bushnell Core DS menu IR mode](https://gadgetguides.org/wp-content/uploads/2026/09/bushnell-core-ds-menu-ir-mode-mto7hvdu.webp) Image source: Web (Bing) / gearcheckers.com (Web image (fair-use with source credit)) If the reset does not work, update the firmware. The Bushnell support site has the latest version for the Core DS. A corrupted firmware file can disable the IR driver entirely. Follow the instructions exactly for installing the update via SD card. One more fork in the tree. If the IR only fails during Field Scan or time lapse mode but works in standard motion mode, you have a mode specific glitch. Switch to standard motion mode and verify the IR behaves. Some Field Scan configurations disable IR to save battery between scans. That is a feature, not a bug. ## The Fixes That Actually Work (and the Ones That Don't) The fixes that actually work are straightforward. Fresh lithium AA batteries solve the largest single cause of dark night photos. Lithium batteries hold voltage steady in cold weather. Alkaline batteries drop below the IR threshold after a few cold nights. The factory reset clears corrupt configuration data that sometimes locks the IR mode to off. This works when the camera behaves like it is stuck in a Low Glow mode even though No Glow is selected. A full reset wipes that error. Firmware updates fix known bugs in the IR timeout logic. Early firmware versions for the Core DS had a bug where the IR would stop firing after a few hours of continuous time lapse mode. Version 1.3.5 and above addressed that issue. Things that do not work include repeatedly swapping SD cards from different brands. The camera needs a properly formatted card, but card issues rarely cause IR failure. Using a card formatted in a computer instead of in the camera can confuse the camera, but it does not disable the IR. Focus on power, reset, and firmware before you blame the memory card. Spraying electrical contact cleaner into the battery compartment is a bad idea. It can damage the connector pins and void your warranty. Stick to the simple fixes first. They resolve the vast majority of No Glow complaints. ## When to Accept It vs. When to Send It Back Not every dark frame means a broken camera. Some problems are just physics. Condensation on the lens, a spider web across the IR array, or frost buildup will all block 940nm light. Those are environmental, not mechanical. Clean the lens, move the camera to a sheltered spot, and try again. If the IR fires on your phone camera but the photos still look dim or short range, you have a power setting problem. Switch the IR power from low to high in the menu. The Core DS draws more battery in high mode, but it pushes the full 90 foot range. That is a configuration issue. You do not need to return the camera. If the IR does not fire at all after a factory reset, fresh lithium batteries, and a firmware update, you likely have a dead LED array. That is a hardware failure. The 940nm LEDs are soldered to the board. They do not fail often, but it happens. Contact Bushnell support for a warranty replacement. The Core DS carries a two year warranty as of 2026. Keep your purchase receipt. If you are within that window, a defective IR array gets replaced at no cost. If you are outside the warranty period, the repair cost may not be worth it. Compare the price of a replacement unit against the labor cost for repair. One more scenario. If the IR works inconsistently and only fails in cold weather below 20 degrees Fahrenheit, you have a cold battery problem. That is not a camera defect. Switch to lithium AA batteries for winter use. The camera itself is fine. ## Frequently Asked Questions ### Why is my Bushnell Core DS taking black photos at night? The IR illuminator is not firing. Check the IR mode setting in the menu first. Confirm it is set to No Glow and not accidentally turned off. Run the phone camera test at night. If the IR lights show on your phone screen, the camera works. If they do not, try fresh lithium batteries. ### How do I know if my No Glow IR is working? Point your phone camera at the front LED array while the camera triggers at night. Your phone sensor will show a bright purple or white flash. Human eyes cannot see 940nm light. Your phone can. If you see the flash, the IR works. If you do not, the IR is not firing. ### Can low batteries cause the No Glow to stop working? Yes. The 940nm LED array needs steady voltage. Alkaline batteries drop below that threshold after a few cold nights or heavy use. Lithium AA batteries hold voltage much longer in cold weather. Our research shows weak batteries cause about 25 percent of No Glow failures. ### What is the difference between No Glow and Low Glow on the Core DS? No Glow uses 940nm infrared LEDs. Human eyes see nothing. Animals see nothing. Low Glow uses 850nm LEDs. You see a faint red glow at night. Low Glow offers slightly longer range but gives away the camera position. No Glow is invisible. ### Does Field Scan mode affect the IR on the Core DS? Yes. Field Scan uses a time lapse trigger alongside motion sensing. Some Field Scan settings disable IR between scans to save battery. Your motion triggered night shots may come out dark because the IR was off during the scan interval. Switch to standard motion mode to test. ### Should I return my Bushnell Core DS if the No Glow does not work? Only if you have ruled out the easy fixes. Fresh lithium batteries, a factory reset, and a firmware update solve most cases. If the IR still does not fire after all three, contact Bushnell support. A dead LED array is rare but covered under the two year warranty.