If your Nothing Phone (3) is refusing to send picture messages or group chats, it's a frustrating roadblock. MMS issues on Android, including Nothing OS 3.0, usually come down to a few specific settings that need a quick check.
I'd start by making sure your mobile data is switched on. Unlike regular texts, MMS requires an active data connection to send. Swipe down from the top of your screen and tap the mobile data icon to enable it, or go into Settings > Network & internet > Mobile network and toggle it on there.
If you have a strong WiFi signal, try temporarily turning WiFi off. Some networks can interfere with the carrier's MMS gateway. Sending the message over your cellular data connection instead often does the trick immediately.
Verify Your Messaging App Settings
Open the Messages app on your Phone (3) and tap the three-dot menu in the top right, then select Settings. Look for a section called "Multimedia messages" or "Advanced."
Inside, ensure that "Auto-download MMS" or "Auto-retrieve" is enabled. You should also check that the file size limit for sending isn't set too low, as large photos or videos might fail. If you're traveling, toggle on "Roaming auto-retrieve" as well.
Clear the Messaging App's Cache
Corrupted temporary files can break MMS sending. Go to Settings > Apps > See all apps. Find and select your messaging app (like Google Messages or the default Nothing app).
Tap Storage & cache, then hit Clear cache. This won't delete your messages. If the problem persists, you can try Clear storage or Clear data, but be warned this will erase your entire message history, so back up anything important first.
Check and Update APN Settings
Incorrect Access Point Name (APN) settings are a very common culprit. These tell your phone how to connect to your carrier's multimedia service. Head to Settings > Network & internet > Mobile network > Advanced > Access Point Names.
You should see a list with at least one APN selected. If the list is empty or looks wrong, you'll need the correct details from your carrier. A quick web search for "[Your Carrier] APN settings 2026" or a call to their support will get you the right MMS proxy and port information to enter.
Perform a Force Restart
A simple software glitch can sometimes hang the messaging service. For the Nothing Phone (3), press and hold the Volume Down button and the Power button together for about 10 to 15 seconds.
Keep holding until you see the Nothing logo appear on the screen, then release. This forces a fresh boot and can clear up minor issues preventing MMS from going through.
Update Nothing OS
Software updates frequently include fixes for connectivity and messaging bugs. Make sure your Phone (3) is running the latest version of Nothing OS. Go to Settings > System > System update and tap "Check for update."
If an update is available, install it and restart your phone. The regular updates Nothing provides are key for optimizing performance and fixing these kinds of problems.
Reset Network Settings
This is a more thorough step if the others haven't worked. Resetting network settings will erase all your saved WiFi passwords, Bluetooth pairings, and cellular network preferences, but it can resolve deeper configuration conflicts.
On your Phone (3), navigate to Settings > System > Reset options. Tap Reset Wi-Fi, mobile & Bluetooth and confirm. After the phone reboots, you'll need to reconnect to your WiFi and re-pair Bluetooth devices, but your MMS configuration will be freshly set by your carrier.
Ensure You Have Enough Storage
Your Phone (3) needs a bit of free space to process and send multimedia messages. If your storage is critically full, it can fail silently. Open Settings > Storage to see how much space is available.
Try to free up at least a few hundred megabytes. You can delete old downloaded files or clear app caches for other applications. This often removes an unseen barrier that's stopping MMS from sending.
Try Google Messages as Your Default App
If you're using a different messaging app, consider switching to Google Messages, which is highly reliable for MMS and RCS. Download it from the Play Store if it's not already installed.
Once installed, open it and follow the prompts to set it as your default SMS app. Its widespread carrier compatibility and frequent updates make it a solid choice for troubleshooting persistent sending issues on any Android phone, including the Nothing Phone (3).