Why is my phone suddenly not reading my SIM card?

Open Settings > Mobile Network. Under SIM Card info and Settings, Tap the SIM, and toggle on “Enable”. Also, make sure the data roaming is ON to avoid this issue when you’re in a roaming area. When you face the issue of “SIM Card not detected”, clearing out cache data could prove an effective solution.

How can I fix my SIM card connection problem?

If your SIM was not installed properly, or if the SIM card tray was loose, this should fix that for you. Eject the SIM card tray on your phone, take the SIM out, wait for half a minute, put the SIM card back in, and slide the tray into your phone. After phone rebooting, check if the device reads your SIM card.

How do I fix my android not reading my SIM card?

How to fix the “No SIM Card Detected” error on Android devices

  1. Reboot your device.
  2. Remove the battery.
  3. Adjust the SIM card.
  4. Manually select carrier/network operator.
  5. Change network mode to auto.
  6. Clean the SIM card.
  7. Replace your SIM card.
  8. Remove and re-insert SIM card.

Are there any problems with the HTC One (M8)?

Disclaimer: The HTC One (M8) is a great smartphone and chances are that you will not experience any of the problems listed below. Users have found their phone occasionally struggling to detect the SIM card. This error can arise randomly with no discernible pattern.

How do I Stop my HTC One M8 from roaming?

Avoid special characters when naming your device. Make sure you haven’t given your device a crazy name by going to Settings > Bluetooth and checking the Device name. A handful of users have noticed that their HTC One M8 always appears to be roaming.

Is your HTC One M8 booting into safe mode?

Apparently a few HTC One M8 units have been booting into safe mode straight out of the box. You’ll know if yours is one of them because it will say “Safe mode” at the bottom left of the screen.

How do I fix dead pixels on the HTC One M8?

Despite the pretty screen on the HTC One M8, there have been some complaints about dead pixels — pixels that won’t light up — and stuck pixels — ones that are permanently on — with the displays. This can ruin the viewing experience for the One M8 user. You can try an app like Dead Pixel Detect and Fix and see if it helps.