iPhone 5S GPRS/E slow / unusable
Hi,
A month ago I upgraded from an iPhone 4 to the iPhone 5S. Ever since I had the 5S I have noticed the GPRS / E data is extremely slow and most of the time it is unusable as pages time out or you end up giving up.
I am on Tesco mobile in the UK (O2).
I decided a few days ago to compare my 5S with the iPhone 4 which my wife now has and is also on the same type of contact with Tesco mobile.
If I turn wifi off and turn off 3G/4G (Settings / Enable 3G/4G toggle) on both phones then I can see they both switch to GPRS mode. I load the same webpage on both phones together and although slow as you would expect on GPRS the iPhone 4 loads the page first while the iPhone 5S just sits there blank with the blue bar at the top initially moving then paused.
So I contacted Apple support to ask why. After many calls reseting the phone and updating to iOS7.1, checking setting with Tesco mobile etc I still dont have a fix.
Today I went into the Southampton Apple store, a genius lady acknowledged the issue once I showed her and straight away gave me a replacement saying it looked like hardware fault. However on testing the replacement it still had the issue. A more senior genius guy then looked at it and also saw the issue. He was suggesting that it must be my sim card so I said to them to show me an iPhone 5S with another sim card working like the iPhone4. They searched for another sim and then tried a new pay as you go O2 sim which they could not get working as it didn't seem to be activated. In the end I gave up as had already been in the store over an hour and thought as I got a replacement phone it was worth checking at home again.
Back home though as expected I get exactly the same issue with GPRS/E not being usable.
Does anyone else have this issue or know a fix? I also contacted a relative who also owns an iPhone 5S on vodafone and he also thought the GPRS / E is not usable compared to the iPhone 4.
I guess my next step will be to purchase a working pay as you go sim on O2 to see if it has the same issue.
Is this a general iPhone 5S hardware or software issue, I know must people probably are using 3G or 4G so maybe do not notice.
Be great to hear other 5S users experience using GPRS/E.
Thanks
Nigel