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2014-10-10 12:45 PM
I have a quesiton about the sim cards. Doesn't the Z3 compact have a Nano sim instead of a mirco sim? I currently have a S3 on AT&T. http://www.gsmarena.com/compare.php3?idPhone1=6538&idPhone2=4803 just wanted to make sure.
2014-10-10 06:12 PM
The Z3 compact does take a nano-sim. You will have to go to an AT&T store to get one. This is painless - tell them you have a new unlocked phone that needs a new sim. It took me 5 minutes, zero cost.
2014-10-10 06:28 PM
I can confirm JohnD's comment that the unlocked Z3 compact model D5803 works great on AT&T. I ordered mine from Amazon, they have an US-based supplier now and it is available with free 2-day shipping through Amazon Prime.
I had to go to the AT&T store to get a new nano sim and also had to change my plan from smartphone (unlimited data) to LTE (unlimited data). It was a painless experience and the lady at the store was very accommodating (and pretty hot). I think you can order one for free if you call AT&T but I have a store nearby and didn't want to wait.
The only problem I encountered was that I could not connect for mobile data until I added the correct APN. Following is the information on that if anyone needs it:
Settings - Wireless & Networks - More - Mobile Networs - Access Point Names - hit the + sign at the top to add. I added the following settings...
Name - att Phone
APN - phone
Proxy - not set
Port - not set
Username - not set
assword - not set
Server - not set
MMSC - http://mmsc.mobile.att.net
MMS proxy - proxy.mobile.att.net
MMS port - 80
MCC - 310
MNC - 410
Authentication type - none (different than not set)
APN type - default,mms,supl,hipri,fota (no spaces)
APN protocol - IPv4
APN roaming protocol - IPv4
APN enable/disable - check box, it should says enabled
Bearer - unspecified
MVNO type - none
2014-10-10 07:08 PM
Have you been able to get LTE with those APN settings? The best I get is H+ and that's after attempting several different APN's with ATT tech support. It seems I'm not along in this problem and in the link below someone talks about using his iPhone5 IMEI on his ATT nanoSIM to be able to get LTE.
2014-10-10 07:12 PM
2014-10-11 07:02 AM
So strange. I'm using those exact APN settings you have above and yet still no LTE. Something must be different (since we own the same model phone), I just wish I knew what?
Also RoscoV3, tried the "Internet Settings: Download" option and that again only provided H+ connectivity.
2014-10-11 02:52 PM
There is a lot of discussion on the XDA Z3c forum http://forum.xda-developers.com/z3-compact/help about APN settings, etc. I notice that many people are buying European versions of the D5803 that are showing H+ (and maybe just H) but are measuring LTE speeds. There is a post http://forum.xda-developers.com/showpost.php?p=55796221&postcount=28 that mentions flashing a US FTF firmware to get the LTE icon. I can't say it that will work sinec I have the LTE icon.
There are 2 apps I use to check connections and speeds: rootmetrics coverage map and advanced signal status, both from the play store. I dont understand all the information but from ul/dl speeds I can tell it is LTE and the coverage map shows an LTE connection (I think). On the signal status, make sure you are checking your cell signal speeds and not your wi-fi speeds.
2014-10-11 03:04 PM
There is a lot of discussion on the XDA Z3c forum http://forum.xda-developers.com/z3-compact/help about APN settings, etc. I notice that many people are buying European versions of the D5803 that are showing H+ (and maybe just H) but are measuring LTE speeds. There is a post http://forum.xda-developers.com/showpost.php?p=55796221&postcount=28 that mentions flashing a US FTF firmware to get the LTE icon. I can't say it that will work sinec I have the LTE icon.....
Sorry for the delayed reply to this thread but I've been traveling all week...
Anyway - brokenman is "right on" in his reply. In fact, my Z3C was imported from HK - and it showed the LTE icon since Day 1 - with the "downloaded" APN settings from the "Settings" menu. Those who have purchased from Clove and others in the UK do not have the LTE icon - but the "H+", which again - offer LTE speed (although the icon does NOT show LTE)..
As well - I flashed the "US" version from the XDA site to see if it had any difference on performance. I will tell you, in my experience - there is none (I haven't tried it with my T-Mobile nano-sim, however - only AT&T). My feeling is that the "US" version of the formware (XXX.93) is simply an Asian FTF file renamed to "US" to show the LTE icon..
Hope this helps,