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3G, 4G & LTE Not Working on iPhone or iPad? How To Fix

Of late, many iPhone users have reported 4G/3G & LTE connectivity issues on their devices. They have done everything possible but this issue hasn’t been resolved. So, what’s the fix to this 4G/3G & LTE issue? How can it be solved?

Talking about the fixes; there are some tried and tested tricks that have solved the mess for ages. And only in some rarest cases, you may have to travel a bit too far. Without waiting any further, let’s give them a shot to get rid of the problem!

How to fix 3G/4G & LTE not working problem on iPhone or iPad

Check Your Cellular Connection

Many a time, easy tricks work wonder in solving even annoying issues. Therefore, we are going to mention some of the basic hacks first. If they click, you won’t have to look any further.

First off, ensure that 3G/4G is enabled on your device. Yes, it might sound a bit funny. But at times, basic things do tend to go out of our mind. So, it’s better to check them out upfront.

  • Head over to Settings app → Cellular/Mobile Data. Make sure to turn on the switch
  • Then, tap on Cellular/Mobile Data Options → Enable 4G → Choose Voice & Data

Turn Mobile Data on/off a few times. It might solve the issue immediately.

Toggle Airplane Mode

Turning on Airplane Mode and then turning it off after a few seconds might solve the 4G/3G or LTE connectivity. To do so; swipe up iPhone Screen (On iPhone X Series, swipe down from the top-right corner) and Turn On and Off Airplane Mode.

Toggle On-Off Airplane Mode on iPhone or iPad

Remove the SIM Card/Restart Your iPhone

Sometimes, restarting your phone can automatically fix a few issues. Let’s see if it can help.

Step #1. Power down your iPhone.

Step #2. Remove the SIM card and reinsert it.

Step #3. Restart your phone: Press and hold on the sleep/wake button and when the red slider appears, drag it to switch off your device.

Step #4. After a while, press and hold on the sleep/wake button to switch on your iPhone.

Turn Off SIM PIN

Turn off SIM PIN, if you have accidentally enabled it. SIM PIN is used to prevent access to the cellular data network. If you want to use cellular data, you need to enter the PIN when you swap SIM cards or happen to restart your iPhone or iPad (Wi-Fi + Cellular Models). One thing is to be remembered; it applies to devices that work with SIM card.

Step #1. Launch Settings app → Scroll down and tap on Cellular.

Tap on Settings then Cellular on iPhone

Step #2. Tap on SIM PIN → Switch off SIM PIN.

Turn Off SIM PIN on iPhone or iPad

Note: There are some carriers which provide default SIM PIN enabled with their SIM Cards. You can contact your carrier to check your default SIM PIN.

Contact Your Carrier

If no luck yet, contact your carrier immediately and explain the problem.

  • Contact your carrier to make sure your account is properly set up and there is no problem with the current data plan
  • Check out the error messages in the carrier logs

Update The Carrier Settings

To boost the performance or resolve the existing bugs, the carrier providers sometimes introduce updates. So, be sure you have updated the carrier on your smartphone.

Go to Settings → General → About → check out the carrier version. If an update is available, go for it.

Reset Network Settings

Resetting Network settings can bring the solution. However, before moving ahead with the process, you should know that resetting the network will remove all the previous settings such as Wi-Fi passwords, VPN settings, preferred network, etc.

Step #1. Launch Settings app → Tap on General → Scroll down and Tap on Reset.

Tap on Settings, General and Reset on iPhone or iPad

Step #2. Tap on Reset Network Settings → Enter your iPhone Passcode and Confirm.

Reset Network Settings on iPhone or iPad

Update iOS

iOS update has a history of solving tons of annoying issues. If you haven’t updated your device for a while or if there is a software update in the waiting, do not fail to upgrade. When your smartphone is connected to Wi-Fi.

Step #1. Plug your iPhone to power source.

Step #2. Launch Settings app → Tap on General → Tap on Software Update.

Step #3. Tap on Download and Install → Tap on Install.

Restore Your iPhone As New

If all the solutions mentioned above and tricks haven’t fixed the issue, restoring your iPhone can work as a last resort. Before moving ahead, you must back up your device. Restoring your iPhone as new will delete all the media and data and install the newest version of the software.

Step #1. Connect your iPhone with Mac or PC → Launch iTunes or Finder.

Step #2. Select your iPhone from the left menu → Click on Restore iPhone.

Step #3. Click on Restore and Update to confirm

Restore iPhone from iTunes Backup

Contact Apple Support

Do not give up as yet if the issue is still not solved. Contact the godfather! I mean, contact Apple itself.

That’s all!

Signing off…

I guess the problem is finally behind you. May I know the hacks that clicked for you?

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