If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. Update your iPhone or iPad to the latest version of iOS. … Remove your SIM card from the SIM card tray and then put the SIM card back.
Why is my phone saying no SIM all of a sudden?
Some possible causes could be that you didn’t insert the SIM card correctly or your Android device is experiencing a software issue. Whatever the reason, a solution needs to be found quickly when your phone says: “No SIM card detected.”
Why is my phone not reading my SIM card?
Most of the time, rebooting or power cycling your phone can fix SIM card not detected issue. When you reboot your android phone, it will relaunch the OS as well as the programs stored in your device. If your phone’s software isn’t detecting your SIM, this is one of the quickest fixes to use.
Why does my iPhone suddenly say no SIM?
If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. Update your iPhone or iPad to the latest version of iOS. … Make sure that the SIM tray closes completely and isn’t loose.
Why is my sim not working?
Your SIM card or device may be configured for your previous network and will need to be reconfigured. … Clean the gold connectors on the SIM with a clean lint-free cloth. Replace the battery and turn your phone on without the SIM. Turn your phone off, replace the SIM and restart the phone.
How do I clean my SIM card on my phone?
Clean the SIM card by blowing off dust, or use a soft cloth to carefully remove any residue from the gold contact area (don’t use soap or anything abrasive). Place the SIM card chip-side down into the tray and slide it back inside. If inserted correctly, the tray should go in easily. Restart your phone.
Where is the SIM card on my iPhone?
Locate the SIM tray
The SIM tray is located on the right side of the device. To insert a SIM card, insert a SIM tool into the small hole to eject the SIM tray.
How do you reset a SIM card?
Resetting SIM card through the phone’s settings
Insert the SIM card into your cell phone’s SIM card slot and place the back cover securely. Then, turn on the phone. Step 2. Go to the “Settings” menu and choose “Reset” from the list of options that are displayed.
Why is my second SIM card not working?
Some of the problems with the SIM slot that can cause this problem: – SIM Card not inserted properly. – Loose SIM slot resulting in the card losing the connection with the reader of the device. – Accumulation of dust over the slot and SIM card reader making the slot incapable of reading the card properly.
How do I restore my SIM Toolkit?
Settings -> Wireless Settings -> Sim & Network Settings -> Click on a sim (SIM 1 or SIM 2, this one is dual sim) -> Scroll to the bottom of the list and click on SIM Toolkit.
Why won’t my SIM card work in a different phone?
If a phone is locked, the service provider has installed some software on the phone that ties the subscriber ID number on the SIM card to the serial number of that particular phone. … The SIM card won’t work in other phones, and the phone won’t work with other SIM cards.
Can I unlock my phone myself?
The simplest way to unlock your device is to ring your provider and ask for a Network Unlock Code (NUC). Most will provide you with one and some even do it for free once your contract is up. … Your phone company may be able to unlock the handset remotely. There are other unlocking options available.
What happens if you switch SIM cards in iphones?
Answer: A: Answer: A: If you change it for a SIM from the same carrier, nothing happens, the device continues working as before. If you change it for a SIM from another carrier and the phone is locked to the original, then it will work as a fancy iPod, none of the phone capabilities will be available.