lukefromcampbell wrote:
Having the same issue with an iPhone 4S, 32GB black on the Telstra network in Australia.
1. After reboot, the phone is fine for around 30 minutes, then calls stop going through - incoming or outgoing. The signal bar still shows good service levels, but outgoing "Call Failed" and incoming calls head straight through to voice mail. Funny enough, data is still working ???
2. After another 10 - 15 minutes, service bar flattens out to indicate poor / no reception, but Telco network indicator is still present. At this time, web browsing fails, times out.
3. The phone will remain this way from anywhere between 10 - 60 minutes and then I get the "SIM Failure" message across the middle of the lock screen and "Invalid SIM" / "SOS Only" in the notice bar.
4. I reboot the phone, goto 1.
I have returned the phone to the store of purchase and they replaced the original SIM. This made no difference whatsoever.
I have also noticed the SIM lock seems to take a lot longer to unlock, in the vicinity of 15 seconds after PIN entered.
Also, battery is draining considerably quicker than any previous iPhone. I have gone through two full charges in one day. Maybe related to lack of signal and phone searching for coverage???
Update on my last post.
Two days ago I disabled my SIM pin which immediately stopped the "Invalid SIM" issue and I now have constant network coverage. However, despite this every time I attempt a call, it will take 2 - 4 attempts for the call to go through. The failed attempts are either "Call Failed" message immediately, or the call seems to go through and the call duration timer starts counting, but neither me nor the receiving party can hear anything. After a few tries the call goes through. So no more rebooting handset to recover from failed SIM message, but I do need to use the SIM pin so I'm waiting for this issue to be fixed properly. Also, I assume it is costing me connection fees every time I place an empty call, so this also needs to be fixed.
The issue with excessive power consumption is still ongoing. I have been going through around two full charges daily, with minimal browsing / call / general usage. I read on Apple support somewhere turning off mobile data, location services, bluetooth, wifi, notifications, icloud sync increases battery life, so I went ahead and turned pretty much everything off. After disabling all non-essential services I can report that battery life has improved. Previously overnight battery drained between 60 - 70 %, but with these changes it's down to an overnight draw of around 10%. This fix is obviously unacceptable long term, however it seems to have fixed my issues for the time being, and hopefully I can put up with it until Apple release a fix.
I am loving Siri and the respone times of the UI, and also love the quality of the rear facing camera and HD video. However functional issues with the mobile network and excessive power draw by standard apps, and I'm thinking I'll be switching back to my 3GS until they've sorted this mess out...