cellular data not working

There could be several reasons why cellular data is not working on your iPhone. Here are some common troubleshooting steps you can try:

1. Check your network coverage: Make sure you are in an area with adequate cellular network coverage. Poor network reception can result in data connectivity issues.
2. Enable cellular data: Go to your iPhone's settings and ensure that cellular data is turned on. You can find this option under "Settings" > "Cellular" or "Mobile Data." Toggle the switch to enable it if it's currently off.
3. Airplane mode: Toggle Airplane mode on and off. This action can refresh your device's connectivity settings and resolve temporary network glitches. Access the Control Center by swiping down from the top right corner then tap the airplane icon.
4. Restart your iPhone: A simple restart can often resolve minor software issues. Hold down the power button until the "slide to power off" option appears. Slide it to power off, then press the power button again to turn your iPhone back on.
   1. Restart the device. That's it.
   2. Still not solved --> Force restart iPhone - Apple Support
5. Update your iPhone's software: Outdated software can cause compatibility issues with the cellular network. Make sure your iPhone is running the latest version of iOS. Go to "Settings" > "General" > "Software Update" to check for and install any available updates. There are only 2 ways to update an iOS/iPadOS. Know how to...
   1. Update Over-the-Air (OTA) —> Update your iPhone or iPad - Apple Support (IN)
   2. Update using iTunes/Finder —> Update your iPhone, iPad, or iPod touch - Apple Support (IN)
6. Reset network settings: Resetting network settings can help resolve issues related to cellular data. Go to "Settings" > "General" > "Reset" > "Reset Network Settings." Keep in mind that this action will remove your saved Wi-Fi passwords, so you'll need to reconnect to Wi-Fi networks afterward.
7. Contact your carrier: If none of the above steps work, it's possible that there may be an issue with your cellular service provider. Contact your carrier's customer support for further assistance. They can check your account and help troubleshoot any network-related problems.

If the issue persists, it's always a good idea to reach out to Apple support or ........

Take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support:

Find Locations - Location Selector - Apple

Contact Apple for support and service - Apple Support 

Get a Genius Bar Reservation and Apple Support Options - Apple

Contact Genius Bar.

Manage Reservations - My Reservations - Apple

Carrier Update (Required): Released by your Cellular Service provider (Carrier Update), affects your Outgoing / Incoming calls, SMS, Data etc..

How to Update Carrier Settings

You can manually check for and install a carrier settings, update with these steps: Make sure your device is connected to a Wi-Fi or cellular network. Tap Settings > General > About. If an update is available, you'll see an option to update your carrier settings.

Update your carrier settings on your iPhone or iPad - Apple Support

Few Carrier (Cellular Service Provider) does not provide Carrier Settings in full but they offer APN settings for example

• Google FI which has APN to be entered manually as h2g2
• MTN Ghana which provides APN pin to be updated manually as the internet
• BSNL in India which provides APN pin to be updated manually as bsnlnet (Watch teh GIF below)

Settings > Mobile Data > APN [under Mobile Data APN] enter the APN pin

View and edit your APN settings

If your carrier allows it, you can view your APN settings in one of the following locations: Settings > Cellular > Cellular Data Options > Cellular Network. Settings> Mobile Data > Mobile Data Options > Mobile Data Network.

View and edit your Access Point Name (APN) on your iPhone ...

Use the APN pin based on your carrier. Ask them (Your Carrrier) or search using any search engine.

Please contact your carrier for this.