Hey @Gohopalong1,
Welcome to the Community 
What happens when you try to activate it? Is there an error message on your side and if yes, what's the error?
I would suggest clearing the cache and cookies of your browser or try a different browser to see if that helps.
Keeps us posted!
Hey @Baljitkaur
SIM cards for monthly accounts can only be activated on Fido.ca via MyAccount or in a Fido store. For prepaid accounts it can only be done in a store.
To do it on Fido.ca, sign-in to your account. You'll first be redirected to your Account's Overview. From there, click on Show all lines (if you have multiple lines) > Select your phone number from the list > Click on View Usage & Manage > Scroll down to Quick Actions > Click the link Update SIM Card.
Keep in mind that for a postpaid account, if you do not have the old SIM Card number then activation on Fido.ca will not work. You must pass by a store to activate your SIM card.
Hope this helps! 😀
***Updated on June 24th 2021***
Hey @myphone143,
I moved your post to this thread since the answer to your question can already be found here.
Hey @Julia081989
Welcome to Fido Community
I have moved your post in this thread as it deals with the same topic.
Hopefully you'll find the answer here.
If you still need help with that, you can contact us and we'd be happy to update it for you.
Hey @Marat1
Welcome to the Community!
I moved your post here so you can find the answer to your question
Don't hesitate to contact us if anything
Hey orion_squall!
If you need a new SIM card, because your old SIM card is a different format or a newer SIM card is required in order to take advantage of all the features of your new device, a new SIM card will come with your new device. There is no need to order one separately.
Our SIM card now come in a multi-SIM format that supports Regular, Micro and Nano formats, which means that you can break off the SIM card in the size that you need for your phone.
Your phone number and plan will not change is any way by activating a new SIM card on your line.
Let us know if you have any other questions.
Hi alsaediahned & welcome to the Community.
To activate your SIM card, you simply need to log into Fido.ca, select the Services tab, and click on Mobile. You'll then see the option Update SIM Card.
Cheers!
Hello D15,
Welcome to the community!
Firstly, do you have pre-paid or post-paid services? If you have pre-paid services, you will not be able to update your SIM card online and would need to go to a Fido store with ID (see here).
On the other hand, if you have post-paid services, you should note that the website has changed slightly since that solution was posted. You should be able to update your SIM card from your My Account --> Usage & Services --> Mobile. From there, you would need to select Update SIM card (near bottom of page under Quick Actions).
**edit** You might need to click on Profile & Settings before you'll be able to access the Usage & Services tab**
If you are unable to update your SIM card that way, you would need to contact customer service. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above. You may be required to go to a Fido store with ID as well.
Hope this helps 😀
Cheers
Hey @marcinchady and thanks for reaching out.
It would ask the old sim card if you click on *CHANGE SIM CARD* on your online account.
It would not ask you this for a brand new activation.
If you have trouble activating your sim card, don't hesitate to let us know.
