Yeah its very strange, I had a Samsung Galaxy Y beforehand, and never experienced such a problem.
Yeah I screenshoted the APN settings, but its still annoying having to constantly put them back in!
I just checked there, and the S4 mini has been added to the devices that can be sent the settings by text to be automatically configured, hopefully this will sort out the problem!
Latest update: Tues 18th Feb @ 12:00
Following a number of different changes we have implemented on our systems, we are seeing a noticeable decrease in the number of customers reporting this particular issue. We are now closely monitoring this to see if the issue has been resolved for everyone.
You can lose your data for a number of reasons (handset issue, congestion at peak times, local signal issue, etc). The storms over the past week have also caused disruption to signals across the country, which could also have affected your data connection. So, it can be difficult to pinpoint if a customer losing their data is related to this particular issue.
A key symptom of this issue is the E, 3G or H symbol disappearing from your phone, but you still have a signal (the signal bars) and calls/texts are working fine, it is just your data that is not working. A restart of your phone resolves the issue and the data symbol returns to your phone.
If you are still experiencing this exact issue and the 'phone restart' fix has worked for you we really want to hear about it from you. There are some details that would be very useful for us to have, so if you could also let us know:
I lost data in Blanchardstown D15 on Sunday.
I toggled Airplane mode on and off again and it rectified the problem.
I'm using a Haier W910 phone running JB 4.1.2.
I noticed data gone when trying to browse or use email.
I was on the move in a car at the time.
Can't remember what data mode (E, H etc.) I had beforehand but H/H+ came on after toggling airplane mode.
Hi dalyer, did your data connection symbol disappear completely when you lost data? Did you still have signal bars on your phone at that stage?
The key to this issue is that data just stops working. The phone itself effectively stops trying to connect to the data, but everything else is fine (so the signal looks fine, just the data symbol goes). A phone restart tells the phone to re-connect again, which is does fine, otherwise it wouldn't try again (airplane mode sometime also does this, but not always, so that's why we recommend a restart).
As far as I recall I still had H/H+ but the signal bars were grey rather than blue which normally means unable to contact Google services I think? However I can't be 100% sure about all of the details as I just toggled airplane mode and it rectified the problem...