Frequent question: Why does my cell phone say invalid SIM?

Your iPhone may say Invalid SIM if there’s software error within the cellular settings. … You’ll have to reenter them after resetting your iPhone. To reset your iPhone’s network settings, go to Settings -> General -> Reset -> Reset Network Settings. You’ll have to enter your iPhone passcode, then confirm the reset.

How do you fix an invalid SIM card?

  1. What is an Invalid SIM card error? …
  2. How Do You Fix An Invalid SIM Card On Android? …
  3. Solution 1: Restart Your Android Phone. …
  4. Solution 2: Remove The SIM Card And Battery. …
  5. Solution 3: Clear Cache And Data On Android Phone. …
  6. Solution 4: Change Network Mode To Auto. …
  7. Solution 5: Insert A Valid SIM Card.

Why does my phone say invalid SIM?

Well, the invalid SIM card error means that either there is no SIM card on phone or it may be due to faulty connection or it is loose. It does not matter why you are getting such error message because there is some connection between your SIM card and its tray.

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How do you fix an invalid SIM card on Android?

How to Fix Invalid SIM card or No SIM Error?

  1. Reboot Your Device. …
  2. Re-Insert SIM Card. …
  3. Switch to Supported Network Operator. …
  4. Reset Network Settings. …
  5. Switch Airplane Mode On and Off. …
  6. Activate Safe Mode. …
  7. Update Software. …
  8. Factory Reset.

28 дек. 2020 г.

How do you unlock a SIM card?

How to Unlock a Locked SIM Card Manually

  1. Contact your wireless carrier by calling the toll-free customer service number. (Find this on your provider’s website or a recent invoice.) …
  2. Power your phone on. You will see a “SIM Locked” or “Enter PUK” message. …
  3. Type in a new four- to eight-digit PIN code when prompted, then press “OK.”

Why would a SIM card stop working?

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.”

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.

Why does my phone say no service?

One of the reasons a Samsung or Android device may show “No Service” is because it’s connected to a disabled cellular radio signal. … Once the test ends, navigate to the bottom of the menu and check the radio data -it should be enabled. After this is set, restart your device and check if the problem is now resolved.

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How do you reset your 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 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.

How do you bypass a locked SIM card?

Steps to Unlock Android SIM using Android SIM Unlock

  1. Step 1: Launch Android SIM unlock software. …
  2. Step 2: Connect Android to Computer. …
  3. Step 3: Set Device in USB Settings. …
  4. Step 4: Unlock the Android SIM. …
  5. Step 5: Putting the Phone in Normal Mode.

Can I unlock a phone myself?

Device Unlock is only available for Android devices and allows customers to request and unlock their phone directly from the app. Learn more about how to use it at T-Mobile support.

How do you unlock a SIM card without a PUK code?

1. Get the PUK code from the SIM card packaging

  1. The PUK code is printed on the plastic card holding the SIM. …
  2. The PUK code might be hidden under a scratchable area. …
  3. Scratch off the area to reveal the PUK code. …
  4. Sign in to get the PUK code. …
  5. Give your mobile carrier a call to ask for your PUK code.
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30 июл. 2020 г.

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