Seeing a "No SIM" or "SIM card not detected" message on your Motorola Moto G Stylus 5G (2025) is a real roadblock. You can't make calls, send texts, or use mobile data. The good news is this is almost always a simple fix you can handle yourself, often in just a few minutes.
Start With a Force Restart
I'd start with this one. A force restart clears out temporary glitches that can confuse the phone's SIM reader. On your Moto G Stylus, press and hold the Power button for about 10 seconds until you feel a vibration and see the Motorola logo appear.
This is different from a normal restart and often works when the phone seems stuck. After it boots back up, check if it recognizes your SIM.
Check the SIM Card and Tray
Power your phone off completely. Find the SIM ejector tool that came in the box (a small paperclip works in a pinch). The SIM tray on this model is on the left side of the phone.
Gently push the tool into the tiny hole to pop the tray out. Carefully remove the SIM card and inspect the gold contacts. Look for any scratches, dirt, or corrosion.
Use a clean, dry microfiber cloth to gently wipe the contacts clean. Blow any dust out of the SIM tray slot on the phone itself. Reinsert the SIM, making sure it's seated correctly in the tray, and push the tray back in until it clicks.
Toggle Airplane Mode On and Off
Swipe down from the top of your screen twice to open the full Quick Settings panel. Tap the Airplane mode icon to turn it on. Wait about 10 seconds, then tap it again to turn it off.
This forces your phone's modem and network radios to completely reset. It's a quick trick that can re-establish the connection to your carrier's network.
Verify the SIM is Enabled in Settings
Sometimes, a software hiccup can disable the SIM in your settings. Open the Settings app and tap on Network & internet. Then, select SIMs.
You should see your SIM card listed here. Make sure the toggle next to it is switched on. If you have an eSIM set up as well, ensure the correct one is selected for calls and data.
Update Your Phone's Software
Running outdated software on Android 15 can lead to compatibility issues with your carrier's network. Motorola regularly releases updates that include bug fixes.
Go to Settings > System > System updates. Tap "Check for update." If one is available, download and install it. Your phone will restart during this process, which itself can help clear the SIM error.
Reset Your Network Settings
This is a more thorough step that clears all your saved network configurations. It will erase your Wi-Fi passwords, paired Bluetooth devices, and mobile network settings, but it won't touch your personal files or apps.
To do this, go to Settings > System > Reset options. Tap on Reset Wi-Fi, mobile & Bluetooth. Confirm the reset and let your phone reboot. Afterward, you'll need to reconnect to Wi-Fi and re-pair Bluetooth devices, but it often resolves stubborn SIM detection problems.
Check for Carrier Services Updates
Your carrier uses a system app to manage network connectivity. If this app is out of date, it can cause issues. Open the Google Play Store app and tap your profile icon in the top right.
Select Manage apps & device, then go to the Updates available section. Look for an app called "Carrier Services" or one with your carrier's name. If you see an update, install it and restart your phone.
Manually Select Your Network
Your phone usually picks the best network automatically, but sometimes this process gets stuck. You can force it to search again. Go to Settings > Network & internet > SIMs.
Tap on your active SIM, then select Network operators. Tap "Choose automatically" to turn it off. The phone will search. When the list appears, select your carrier's name from the results.
Test Your SIM Card in Another Phone
This is the best way to figure out if the problem is with your SIM card or the phone itself. If you have access to another unlocked phone, power it off and insert your Moto G's SIM card.
Turn that phone on. If it also shows "No SIM," then the SIM card itself is likely faulty or deactivated. You'll need to contact your carrier for a replacement. If the other phone reads the SIM perfectly, the issue is with your Moto G.
Reset APN Settings to Default
The Access Point Name (APN) tells your phone how to connect to your carrier's internet. Wrong settings here can break data and sometimes voice services. Go to Settings > Network & internet > SIMs, then tap on your SIM.
Select Access Point Names. Tap the three-dot menu in the top right and choose Reset to default. This will load the standard APN settings from your carrier. After resetting, restart your phone.
