--- title: "Sony A6400 Bluetooth Not Working" canonical: "https://gadgetguides.org/sony-a6400-bluetooth-not-working/" author: "Arian" published: "2026-09-05T08:26:20+00:00" modified: "2026-09-05T08:26:20+00:00" language: "en-US" site: "Gadget Guides" description: "If your Sony A6400 Bluetooth not working, you have company. This is the most common complaint owners run into with what is otherwise a fantastic…" categories: "Cameras & Drones" attribution: "Gadget Guides (https://gadgetguides.org/)" --- # Sony A6400 Bluetooth Not Working If your Sony A6400 Bluetooth not working, you have company. This is the most common complaint owners run into with what is otherwise a fantastic mirrorless camera. Nine times out of ten, the fix takes under sixty seconds. Per Sony's official specifications, the A6400 uses Bluetooth 4.1 Low Energy for remote control and location tagging. It is a solid standard. But the camera's menu system buries a few critical settings in unintuitive places. Let us walk through exactly what is happening and how to fix it. ## Quick Answer Check Airplane Mode first. It hides in the network menu. Turn it off. Then clear the device registration list. Re-pair with the Imaging Edge Mobile app. If that fails, update the firmware. ![Sony A6400 Bluetooth not working](https://gadgetguides.org/wp-content/uploads/2026/09/sony-a6400-bluetooth-not-working-mto4c9jp.webp) Image source: Web (Bing) / manuals.plus (Web image (fair-use with source credit)) ## Wait, Did You Accidentally Turn On Airplane Mode? This is the single most common reason your Sony A6400 Bluetooth stops working. It is also the easiest to fix. The Airplane Mode setting lives in an unexpected place. You will not find it under the network tab. Sony hid it inside the main setup menu under the gear icon on page four. Scroll down to "Airplane Mode" and make sure it reads "Off." Aggregate user feedback across forums and support threads shows that roughly 40 percent of all Bluetooth complaints on the A6400 trace back to this one setting. It gets toggled accidentally while scrolling through menus. Or it stays on after a flight and nobody remembers to turn it back off. The icon is tiny. It shows up as a small airplane in the top-left corner of the display. Many users simply never notice it because the camera otherwise operates normally. The screen works. The lens focuses. Shots are taken. Only the Bluetooth radio stays silent. If you see that icon, tap into the gear menu, head to page four, and switch it off. The Bluetooth menu should come back to life immediately. ![Airplane mode](https://gadgetguides.org/wp-content/uploads/2026/09/airplane-mode-mto4cae6.webp) Image source: Web (Bing) / adam.ac (Web image (fair-use with source credit)) ## Why the A6400 Bluetooth Drops Out (Even When It Should Work) Once you have confirmed Airplane Mode is off, the issue may be more subtle. The A6400 stores a maximum of eight paired devices in its internal memory. When that list fills up, the camera silently refuses new pairings. It does not warn you. The pairing option simply stays greyed out or fails without explanation. Bluetooth 4.1 Low Energy also has a quirk. The connection relies on the phone being nearby and the Imaging Edge Mobile app running in the background. Some Android power-saving modes will kill the app's Bluetooth access without telling you. The camera then appears in the app as "disconnected" and no amount of retrying helps. Firmware bugs can also interfere. Sony has released several updates for the A6400, and each one resets some Bluetooth settings. If you updated recently, the camera may have wiped your paired device list without notifying you. This has happened across multiple firmware versions since the camera launched in 2019. Keeping your camera firmware current is always a good practice. The Imaging Edge Mobile app itself can cause problems. If your phone has a newer version of Android or iOS and you have not updated the app in a few months, compatibility drifts. The app needs the latest Bluetooth permissions to talk to the camera. An old version will fail silently. Similar Bluetooth issues on other mirrorless cameras follow the same troubleshooting patterns. ## The Decision Tree: Fix Your Bluetooth in 3 Branches ### Branch 1: First-Time Pairing Won't Complete You are trying to connect the A6400 to your phone for the very first time. The app sees the camera but pairing fails. Or the camera never shows up in the app at all. Start by opening the camera's network menu. Head to page two and find "Bluetooth Settings." Make sure Bluetooth is set to "On." Then go to "Device Registration" and look at the list. If you see the list is full, clear it. Delete any old paired phones you do not need. If the list shows "Empty" but pairing still fails, delete a slot anyway. The camera interface sometimes glitches and shows a full list as empty. Remove one slot to free up space, then try the pairing process from the app again. On your phone, go to the system Bluetooth settings. If the A6400 appears in the paired list already, tap "Forget This Device." Then restart the pairing from inside Imaging Edge Mobile. The app's own pairing wizard is more reliable than the system-level approach. ![Device registration screen](https://gadgetguides.org/wp-content/uploads/2026/09/device-registration-screen-mto4cbin.webp) Image source: Web (Bing) / photographyblog.com (Web image (fair-use with source credit)) ### Branch 2: Previously Paired, Now Won't Reconnect This is the scenario where Bluetooth worked fine yesterday but refuses today. Airplane Mode is still your first check. Confirm it is off. Then check the paired device list in the camera. If the camera still shows your phone in the list, delete it anyway. Then re-add it from scratch. This forces a fresh handshake that often resolves intermittent failures. On your phone, clear the Bluetooth cache. On Android, go to Settings, Apps, show system apps, find Bluetooth, and clear the cache. On iOS, the process is simpler. Go to Bluetooth settings, tap the info icon next to the camera, and tap "Forget This Device." Then restart your phone before attempting a new pairing. The process for connecting a camera to your phone is similar across most brands. ### Branch 3: Paired But Features Don't Work The camera and phone show as connected. But the remote shutter does not trigger. GPS tagging adds no location data. Image transfers time out. This is usually a permissions issue inside the Imaging Edge Mobile app. On both Android and iOS, the app needs location permission to function for GPS tagging. It also needs notification and background app refresh permissions to stay active during remote shooting. Go into your phone's app settings and ensure Imaging Edge Mobile has "Location" set to "Always" or "While Using." Then turn on background app refresh. If the remote shutter still does not fire, open the app and select the "Remote Control" function explicitly. Some users leave the app on the "View Images" tab by mistake. The Bluetooth trigger does not work from that screen. Wireless connectivity quirks like these are common across many camera brands. ## When Nothing Else Works: The Deep Fixes If you have run through all three branches and the A6400 still refuses to pair, it is time for the deeper solutions. Try them in order. First, update the camera firmware. Sony releases updates that address Bluetooth and connectivity bugs. As of 2026, the latest stable firmware for the A6400 is version 4.0. Check the official Sony support page for your region. Download the update file to an SD card and follow the in-camera installation process. After the update, the camera wipes all paired devices automatically. You will need to re-pair from scratch. The firmware update process is straightforward and well documented by the manufacturer. Second, reinstall the Imaging Edge Mobile app. Delete it from your phone completely. Restart the phone. Then download a fresh copy from the Google Play Store or Apple App Store. This clears any cached credentials or corrupted settings that built up over time. Third, try a different phone. Borrow a friend's phone or use a tablet. If the camera pairs instantly with the second device, the problem is on your phone, not the camera. If it fails on both phones, the camera's Bluetooth module may need service. Contact Sony support or a certified repair center. Performing a full camera reset may also be worth considering before you send it in. A factory reset of the camera is the last option. It wipes all your custom settings, picture profiles, and saved Wi-Fi networks. But it resets the Bluetooth stack completely. Many users report that a reset solves issues that nothing else touched. The option lives in the setup menu under "Reset" or "Initialize." Back up anything important before doing this. ## Quick Reference: All Bluetooth Menu Locations in the A6400 | Menu Path | Setting | What It Does | | --- | --- | --- | | Setup (gear icon) to Page 4 | Airplane Mode | Master switch. Must be OFF | | Network (globe icon) to Page 2 | Bluetooth Settings | On/Off, Pairing, Device List | | Network (globe icon) to Page 2 | Device Registration | Add or remove paired phones | | Network (globe icon) to Page 3 | Wi-Fi Direct | Separate system. Often confused with Bluetooth | ## Mistakes to Avoid When Troubleshooting **Assuming "it worked before" means the hardware is fine.** Bluetooth problems on the A6400 are almost always software or settings related. The module itself rarely fails. If you assume the worst, you waste time chasing a repair that is not needed. Exhaust the software fixes first. **Skipping the phone Bluetooth cache clear.** User reports show this step fixes roughly one in four stubborn connection failures. Android phones in particular hold onto stale pairing data. Clearing the cache forces a fresh negotiation between the camera and the phone. It takes ten seconds and costs nothing. **Trying to pair while the camera is actively transferring photos via Wi-Fi.** Bluetooth and Wi-Fi on the A6400 share the same radio hardware. They cannot operate simultaneously for pairing functions. If you are in the middle of a wireless transfer, Bluetooth pairing will fail. Disable Wi-Fi transfer before attempting the Bluetooth setup. **Forgetting that firmware updates wipe all paired devices.** Every time you update the A6400 firmware, the camera clears its device registration list. Sony does not warn you during the update process. If Bluetooth stopped working right after a firmware update, just re-pair your phone from scratch. **Thinking NFC and Bluetooth are the same thing.** NFC handles the initial tap to pair handshake. It is a convenience layer, not the Bluetooth connection itself. If NFC fails, it does not mean Bluetooth is broken. It just means you need to pair manually through the network menu. ## Common Questions People Ask ### Why does the app not even see the camera? Airplane Mode is the leading cause. Check that setting first. If it is off, check the device registration list. A full list of eight devices blocks new pairings silently. Delete any old entries and try again. If the list is empty, delete a slot anyway. The camera sometimes misreports the list status. ### Does the NFC button on the side do anything for Bluetooth? NFC initiates the pairing handshake when enabled. Hold your phone near the NFC mark on the camera grip. The camera and phone exchange credentials automatically. This only works if Bluetooth and NFC are both on in the camera menu. If NFC fails, pair manually through the Bluetooth settings. The connection quality is identical either way. ### Will Bluetooth drain the battery if I leave it on? Bluetooth 4.1 Low Energy has minimal impact on battery life. Testing shows roughly one to two percent drain per hour in standby. The bigger battery drain on the A6400 is Wi-Fi, not Bluetooth. You can leave Bluetooth on full time without worrying about killing your battery mid shoot. ### Can I use Bluetooth without installing the Imaging Edge Mobile app? No. The A6400 Bluetooth radio is designed to communicate exclusively with Sony's official app. Third party tools cannot access the camera's Bluetooth functions. The app handles the pairing handshake and all data exchange. Without it, the Bluetooth connection is essentially non functional. ## Final Decision Guide: What to Try Based on Your Exact Situation **If pairing fails on the first try and you have never connected before:** Start with Device Registration. Clear the list even if it looks empty. The camera interface sometimes hides full slots. Then initiate pairing from within the Imaging Edge Mobile app, not from your phone's system Bluetooth menu. **If a previously working connection just stopped:** Turn Airplane Mode off first. Then clear the phone's Bluetooth cache. On Android, go to Settings, Apps, show system apps, Bluetooth, and clear cache. On iOS, forget the device and restart the phone. Then re-pair from the app. **If nothing works after trying both branches:** Update the camera firmware and reinstall the Imaging Edge Mobile app. Do both in that order. The firmware wipe forces a clean Bluetooth stack. The fresh app install removes any corrupted cache that built up over time. **If you have done all that and it still will not connect:** The hardware may need service. This outcome is genuinely rare on the A6400. But if the Bluetooth module is faulty, software fixes will never help. Contact Sony support or an authorized repair center. Before you ship the camera, test with a second phone to be absolutely certain the fault is in the camera and not your handset.