Your GiffGaff mobile data not working is not something you want occurring when you’re out and cannot find a Wifi hotspot.

It’s good to keep in mind that GiffGaff is reliant on the O2 network, so it’s best to first check your coverage to make sure you’re not out of the zone from a cell tower or that the network may just be completely down, in which case you would have to wait it out until they have fixed the problem.

At Easyfix, we don’t want you stressing over how or why your GiffGaff mobile data is not working, so we have created this simple guide for you to follow which you will be able to use every time you experience this problem on your phone.

GiffGaff Mobile VS O2 Mobile

Comparing O2 and GiffGaff networks

GiffGaff Mobile VS O2 Mobile

As we know, GiffGaff mobile operates using O2’s mobile network giving GiffGaff pretty much the same coverage and speeds as O2 Mobile, however, there are a few differences between the two;

  • GiffGaff does not have WiFi Calling and 4G Calling as opposed to O2
  • 5G is only available on GiffGaffs ‘Golden’ plan, whereas O2 offers 5G
  • GiffGaff does not have any of their own WiFi hotspots

We can conclude that when it comes to GiffGaff and O2, there is not much difference between the two, giving you a pretty sweet deal with GiffGaffs low pricing and O2’s good network connectivity.

Why is my GiffGaff mobile data not working?

Phone connected

GiffGaff Mobile Data Not Working

Your GifGaff mobile data not working is frustrating to say the least, but it is good to know the possible reasons as to why it is not working which will be outlined;

  • Your mobile device may need to be restarted
  • APN information on your phone is wrong
  • You are out of the coverage zone
  • O2 network is down
  • The building you are in is blocking the connection to the cell tower

How do I activate my GiffGaff mobile data?

Red Power button

Activating GiffGaff Mobile Data

GiffGaff have multiple ways for you to activate your mobile data;

Step 1. Ensure your device is turned off

Step 2. Put your new GiffGaff sim into your device

Step 3. Switch your phone on

Step 4. You may be asked for a pin, which will be 5555

Step 5. You should now see the signal at the top of your screen

You can activate your mobile data by using this link

GiffGaff have a mobile app that you will need to download to manage your data, you can activate your mobile data here if you are connected to Wifi.

Activation should now be completed.

What are the APN settings for GiffGaff mobile?

Spanner Set

Image by Chris Reading from Pixabay

If you can make calls and send messages, but your mobile data is not working, this could be because your APN settings are wrong.

  • APN:
  • Username: gg
  • Password: p
  • Proxy: {Leave Blank}
  • MCC: 234
  • MNC: 10
  • APN protocol: IPv4v6
  • APN roaming protocol: IPv4
  • Authentication type: PAP

How do I set up my APN settings for Giffgaff mobile?

Setting up the APN settings is not as complicated as it seems, and can be easily followed

On Android

Step 1. Go to ‘Settings’ 

Step 2. Find ‘Mobile Networks’ and select this

Step 3. Choose ‘Acces Point Names’

Step 4. Click on ‘New’

Step 5. Input the APN settings that have been given

Step 6. ‘Save’ and exit

On iPhone

Step 1. Find your ‘Settings’

Step 2. Choose ‘Mobile Data’

Step 3. Select ‘Mobile Data Options’ and then ‘Mobile Data Network’

Step 4. Fill in the APN Settings provided

Step 5. Save the information that has been inputted

APN settings are now correct

GiffGaff Mobile Data Roaming not Working

Like many other network providers, GiffGaff offers free mobile roaming in certain EU destinations at no extra cost.

List of Countries included 

  • Austria
  • Belgium
  • Bulgaria
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • French Guiana
  • Germany
  • Gibraltar
  • Greece
  • Guadeloupe
  • Hungary
  • Iceland
  • Ireland
  • Italy
  • Latvia
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Malta
  • Martinique
  • Mayotte
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Reunion
  • Romania
  • San Marino
  • Slovakia
  • Slovenia
  • Spain
  • Sweden

Why is my GiffGaff Mobile Roaming not Working?

Connection abroad

GiffGaff Mobile Roaming

If you are in a country that is not in the EU, and you do not have enough data, your GiffGaff mobile roaming will not be able to work.

It is important to remember that you may have to purchase more data to be able to stay connected while abroad.

You can keep track of your balance easily;

Track 1. Use your GiffGaff app

Track 2. Dial *100# and the select send

Track 3. Ring 43430 and choose option 2

You may need to check your mobile roaming is switched on, and that your software is current.

Related Posts:

How to Activate my GiffGaff Mobile Roaming

Your GiffGaff mobile roaming will be activated when you enter your new location.

GiffGaff will send you a message confirming the charges for the specific country you are visiting.

You might have to restart your phone and connect manually to a network.

Your GiffGaff mobile roaming should be up and running.


When choosing the right network provider for you, GiffGaff mobile does make joining them as effortlessly as possible, with no credit checks involved, you can be connected and active in a matter of a few minutes.

Keep in mind GiffGaff does not have a customer service line, they prefer to handle things online through their app.

We know how important it is for you to have access to what is going on in the world at the touch of a button.

We hope this guide has encouraged you to fix your GiffGaff mobile data not working, and that you can save this guide for any future problems involving your mobile data.