2013-09-12 05:33 AM
I have used my Sony Xperia Z in India for 4 months. It worked fine for indian mobile services providers.
Recently, I have moved to USA, and found - my phone does not detect AT & T sim card here.
The same sim card works fine on other phone. But not with my Sony Xperia Z
Please guide me what could be the issue.
Solved! Go to Solution.
2013-09-12 05:39 AM
2013-09-12 05:43 AM
For the Xperia Z to work with the big blue
850 / 900 / 2100 - C6603
850 / 900 / 1700 / 1900 / 2100 - C6602
4G Network LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - C6603
USA Carrier Voice Frequencies 3G 4G 3G Technology 4G Technology
|AT&T||850 MHz, 1900 MHz||850 MHz, 1900 MHz||700 MHz, 1700/2100 MHz||GSM/HSPA+||LTE|
|MetroPCS||1700/2100 MHz, 1900 MHz||1700/2100 MHz, 1900 MHz||1700/2100 MHz||CDMA/EVDO||LTE|
|Sprint||800 MHz, 1900 MHz||1900 MHz||800 MHz, 1900 MHz, 2500 MHz||CDMA/EVDO||WiMAX (2010–present)|
|T-Mobile USA||1700/2100 MHz, 1900 MHz||1700/2100 MHz, 1900 MHz||1700/2100 MHz||GSM/HSPA+||LTE (2013)|
|Verizon||850 MHz, 1900 MHz||850 MHz, 1900 MHz||700 MHz, 1700/2100 MHz (Planned)||CDMA/EVDO||LTE |
|U.S. Cellular||800 MHz, 1900 MHz|
Don't forget to give Kudos
2013-09-12 05:44 AM
Do you have the correct APN settings
settings > more > mobile networks > access point names > menu > add New
MMS proxy: 80
Authentication type: None
APN type: Not set
Menu > save > restart your phone
Don't forget to give Kudos
2013-09-12 01:47 PM
I supppose the one i have supports C6602, C6603 and 4G LTE
The AT & T sim card i have runs on on 4G LTE.
Still not getting connected to network.
|2G Network||GSM 850 / 900 / 1800 / 1900 - C6602, C6603|
|3G Network||HSDPA 850 / 900 / 2100 - C6603|
|HSDPA 850 / 900 / 1700 / 1900 / 2100 - C6602|
|4G Network||LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - C6603|
|Status||Available. Released 2013, February|
2013-09-12 03:51 PM
Just had a talk with Sony Xperia support team and came to know - xperia z bought from indian market will not work in us market as frequency differes and US mobile service providers do not support indian frequency.
My Xperia Z - model c6602 is of no use in US. Its for Indian market only
2013-09-12 06:41 PM - edited 2013-09-12 06:42 PM
That doesn't seem right, AT&T use 850 and 1900 for 3G, in some areas both in some others only one or the other, and the C6602 support them, umm quite odd. I have the C6603 but I've seen other users with the C6602 here in the US, use the search bar and find those threads.
2013-09-16 05:34 AM
Hey, i got my Sony Xperia Z working in US with AT & T sim card.
There was a mistaken in inserting SIM card in the slot. My bad.
Thanks everyone though for your input!