🔔 This guide is for Smart SIMs only
Before you begin 📍
Your Smart SIM lets you stay connected when you're in the UK or abroad. You'll need:
The Smart SIM email with your QR code
The Honest app installed on your phone
A few minutes to complete the setup
Installing your Smart SIM 📲
This adds your Honest Smart SIM to your phone so you can start using it.
Open the Smart SIM email you received
Find the QR code and scan the QR code with your phone
Unable to scan the QR code? Try this guide to add it manually
Enabling data roaming
This makes sure your Smart SIM works properly and is connected when you’re in the UK or abroad.
Open Settings
Tap Network & Internet or Connections
Tap SIMs or Mobile network
Select your Smart SIM
Turn on Data Roaming
Updating the APN
This makes sure your Smart SIM connects to use data services.
Open Settings
Tap Network & Internet or Connections
Tap SIMs or Mobile network
Select your Smart SIM
Tap Access point names
Select the '+' in the top right
For Name, put in 'Smart SIM'
For APN put in 'data00.telnyx'
Leave the rest blank and tap Save
Ensure this APN is selected
Configuring data switching
This makes sure your main SIM handles mobile data, and your Smart SIM can step in when needed.
Open Settings
Tap Network & Internet
Tap SIMs or Mobile network
Under Mobile data, select your main SIM (not the Smart SIM)
Turn on Mobile data switching (wording may vary by phone)
Making sure VPNs are off
VPNs will block your Smart SIM connection, so it's best to turn them off.
Open Settings
Tap Network & Internet
Tap VPN
Turn off any active VPN
Turning off Private DNS
Some DNS settings can interfere with your Smart SIM. Turning it off helps avoid issues.
Open Settings
Tap Network & Internet
Tap Private DNS
Select Off
What's supported 🛟
Apps
We support apps that use low data to help keep costs down for everyone.
Countries
We've partnered with networks around the world so your Smart SIM works wherever you go.
Testing your Smart SIM ✅
You can use this URL https://smartsim.honestmobile.com to test things - once connected to Smart SIM. If you get a green tick you are connected to Smart SIM, if you get a red X you are using another data source (for example WiFi):
If the page doesn't connect, the best option is to test using a supported app on Smart SIM. For example, WhatsApp.
Changing networks
Smart SIM will connect to the network with the best coverage. If you want to select one manually.
Open Settings
Tap Network & Internet or Connections
Tap SIMs or Mobile Network
Select your Smart SIM
Turn off Automatic Selection
Wait for the list of availble networks to load (this can take up to 2-3 minutes)
Tap the network you want to connect to.
This can be handy for testing another local network in your area or if your usual connection isn’t working well.The UK supports connections on EE, O2, Three and Vodafone.
Supported International networks are available by viewing our list of supported countries: https://help.honestmobile.com/en/articles/9706266-which-countries-does-smart-sim-cover
Basic troubleshooting 🔧
If something’s not working, try these quick fixes first.
Check that Mobile Data is on
Check that Data Roaming is on
Check you've updated your APN
Check that Private DNS is off
Check that any VPNs are off
Restart your phone.