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How to fix an LG V35 ThinQ smartphone that cannot make or receive phone calls [Troubleshooting Guide]

Network problems are usually the main factors that can prevent a device from making and receiving phone calls. This can happen unexpectedly to any device whether it’s new or old. Other factors that can affect calling functions of the phone are faulty updates, errant apps, invalid/incorrect settings, account issues, and a bad SIM card. In worst case scenarios, a device may also not be able to make and receive phone calls due to hardware damage. This is usually the case when you accidentally dropped your phone or got it wet.

Tackled in this post is a pertinent issue affecting the new LG V35 ThinQ smartphone. If by any chance, you’ve landed into this page while searching for more inputs on how to deal with calling problems on the same device, then this post might be able to help you out. Read on to learn how to troubleshoot and fix an LG V35 ThinQ smartphone that is unable to make or receive phone calls.

Now, before anything else, if you have other issues with your phone, make sure you drop by our troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don’t work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

First solution: Soft reset or reboot your phone.

Random software errors may affect the network functions and should that happens, network-related apps and services particularly calling functions will likely become unstable. If it suddenly occurs that you cannot make and receive phone calls on your LG V35 ThinQ, the first and simplest solution you can try first would be a soft reset or reboot. Here’s how it’s done:

  • Press and hold the Volume Down and Power buttons together for at least 8 seconds until the phone restarts. Or you can also press and hold the Power/Lock button and then select Restart from the menu options.

A soft reset dumps cache and rectifies software errors that might have halted your device from making and receiving phone calls. This won’t affect any personal information you store on the internal memory, thus backing up files won’t be necessary.

Second solution: Turn Airplane Mode on and off.

This old trick has already done wonders to a lot of phone users who dealt with various types of network-related problems including calling issues. Turning Airplane Mode automatically disables wireless connections. Toggling this feature on and off works the same as restarting wireless network functions of the phone. Here’s how it’s done:

  1. Swipe left from the Home screen, then tap Settings.
  2. Go to the Network tab.
  3. Scroll to and tap Network & Internet.
  4. Scroll to Airplane Mode then tap the switch next to it to turn the feature on.
  5. If prompted, read the Airplane mode message then tap OK.

After a few seconds, navigate to the same menu to turn Airplane Mode off again. Then try to make a test call and see if it’s already working as intended.

Third solution: Enable Safe Mode.

Errant apps, particularly network-related apps you’ve downloaded maybe also halting your device from making and receiving phone calls. To determine whether a third-party app is at fault or not, try to boot your LG V35 ThinQ in safe mode. Doing so will prevent third-party apps from running, thus leaving only the built-in apps active. Here’s how to enable safe mode on your LG V35 smartphone:

  1. Press and hold down the Power button for a few seconds until the Power off icon appears.
  2. Touch and rest the Power off icon until the Restart in Safe Mode prompt appears.
  3. Tap OK then wait until the phone reboots in safe mode.

Alternatively, you can enter safe mode using the physical buttons. Here’s how:

  1. Turn the phone off by pressing the Power button and then select Power off.
  2. Then turn the phone on while pressing and holding the Volume Down button.

You will know when your phone is already running in safe mode if you see the Safe Mode label at the bottom of the screen. Once you see that label, try to make a test call. If you can make and receive phone calls while in safe mode, then that clearly denotes that the problem is triggered by a third-party application. In that case, you can delete individual apps starting from your most recent download. Don’t forget to test your device after deleting an app so that you’ll know when the problem is solved.

If you still cannot make or receive phone calls while in safe mode, then you are most likely dealing with a complex software issue on the phone, if not hardware damage. In this case, you may continue to troubleshoot your device or take it to a technician.

Fourth solution: Reset network settings.

To clear network errors, performing a network settings reset on the phone can help. Doing so will delete all current network settings including APN settings on your phone. Should there by any errors in your current network configuration that may have halted you from making or receiving phone calls, then that should also be cleared. To reset network settings on your LG V35 ThinQ, follow these steps:

  1. Tap Settings from the Home screen.
  2. Tap the ‘General’ tab.
  3. Tap Restart & reset > Network settings reset > RESET SETTINGS.
  4. Finally, tap Reset Settings to confirm action.

When the network settings are completely reset, you will see the ‘Network settings have been reset’ message that flashes quickly on the screen.

Fifth solution: Remove and reinstall your SIM card.

A bad SIM card in use can also be the main reason why you won’t be able to make or receive phone calls on your device. It’s possible that the SIM card is loose or dislodged and therefore needs to be reseated properly. This means the need to remove the SIM card from your LG V35 ThinQ smartphone first. Before removing the SIM card, turn off your phone completely. Doing so will prevent causing any sort of damage to your device.

  1. Insert the SIM eject tool or small paperclip into the small hole to on the SIM and microSD card tray to eject it. The SIM and microSD card tray is located on the right side of your phone.
  2. Carefully remove the SIM card from the tray.
  3. Then, place the SIM card back into the tray with the gold contacts facing down and the notched edge should be on the upper left.
  4. Gently press the SIM card in until you hear it clicks into place.
  5. Insert the SIM & microSD card tray back into the phone.

After securing the SIM card tray, turn on your phone and then try to make a test call and see if it already goes through this time.

Other options

If you still cannot make or receive phone calls on your LG V35 ThinQ smartphone after exhausting all applicable solutions and workarounds on your end, contact your carrier or network service provider to escalate the problem for further assistance and recommendations. Check and ensure that everything is good in your account and that your SIM card is properly provisioned. If you suspect that the SIM card is at fault, then you may request for a new SIM card replacement. Or you can take your device to the nearest LG-authorized service center in your place, for it to be thoroughly checked by a technician. The problem may also persist if hardware damage is present. In that case, your phone needs service. Don’t forget to avail for warranty, if your phone is still covered.

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