Along the same lines, this update also fixes a few underlying bugs, but there are still quite a few that needs to be ironed out. In this regard, one of the most concerning ones is the inability to use carrier data by the Canadian carrier Public Mobile users. Whenever users are trying to enable carrier data, they are instead getting the “Could not activate cellular data network” error message. To rectify this issue, users have already tried most of the basic network-related workarounds but to no avail.
As far as the plausible reason behind this issue is concerned, it was initially attributed to the removal of the 3G settings in the Cellular Data Settings (one of the few iOS 15.4 changes that went under the radar). However, upon further investigating this issue, we found out that it stems from an APN level change that has occurred after you had installed the beta update. So how to revert this change, and henceforth, how to fix the Public Mobile carrier data not working issue in iOS 15.4 Beta 2? Well, let’s check it out.
How to Fix Public Mobile Carrier Data not working in iOS 15.4 Beta 2
Right after the Canadian users updated their iPhone to iOS 15.4 version 19E5209h, they noticed that the APN Setting has been changed from PM to Telus. So to resolve this problem, you will have to switch back to PM. To do so [proceed ahead at your own risk], you will first have to delete the existing APNs. For that, head over to any one of the two locations:
Settings > Cellular > Cellular Data Options > Cellular NetworkSettings > Mobile Data > Mobile Data Options > Mobile Data Network
Now start off by deleting the existing APN profile. Once done, refer to the below steps to create two new APNs (the first APN is for carrier data whereas the second one is for MMS). Do keep in mind that the values that we haven’t mentioned here should be left blank (such as Username, Password, Proxy, Port, etc).
Canada Public Mobile APN Profile for Carrier Data
Name: CA- Public Mobile WebAPN: sp.mb.comMMS Protocol: WAP 2.0Authentication Type: PAPAPN Type: default, supl
Canada Public Mobile APN Profile for MMS
Name: CA- Public Mobile WebMMS Protocol: WAP 2.0Authentication Type: PAPAPN Type: mms
Once you have created both the APNs, save them and then restart your device for them to become active. Once your device boots up, the mobile data not working issue in iOS 15.4 Beta 2 should have been fixed as well. So on that note, we round off this guide. If there’s any official development surrounding this issue, we will update this post accordingly. In the meantime, the aforementioned steps are your best bet. Likewise, if you have any queries, do let us know in the comments section below.
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