Xperia Z C6603 on T-mobile USA

[mcprima]

so i purchased my Xperia Z C6603 and it automatically worked on AT&T's 4G network which was awesome,

but because their 4G internet packages cost an arm n a leg, i switched to T-mobile today& now im stuck on Edge/no service

is there anything i can do? or am i screwed this month

[Uliwooly]

the C6603 doesn't work with AT&T's 4G, at least not with LTE, it does work with their H (3.5G) network.

do you have the correct Tmobile's apn settings?

[mcprima]

when i put my ATT sim in the phone, they automatically recognized what phone i had and because it was working with their 4G, they added a $30 3GB internet package.

as for t-mobile,the settings they gave me were just "epc.tmobile.com"

i tried downloading settings automatically to see if it helped but it was the same settings. 😕

[Uliwooly]

try this

settings > more > mobile networks > apn > menu > add New > enter this

Name: T-Mobile

APN: epc.tmobile.com or fast.tmobile.com (for LTE devices)

Proxy:

Port:

Username:

Password:

Server:

MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc

MMS proxy:

MMS port:

MMS protocol: WAP 2.0

MCC: 310

MNC: 260

Authentication type:

menu > save

restart your phone

[mcprima]

still running EDGE.

When i try searching for avail networks, only T-mobile 2G comes up ._.

[Uliwooly · Accepted solution]

my bad, yeah it is not going to work, why? simple

C6603 HSDPA 850 - 900 - 2100

Tmobile USA use 1700-2100 (both are needed)

so you will be stuck on 2G/Edge with Tmobile

now it seems that 1900 is for 3G and 1700 & 2100 is for LTE (combined)

C6602 HSDPA 850 / 900 / 1700 / 1900 / 2100

[mcprima]

so i bought the wrong phone if i want t-mobile? lol

dangit. i guess ill try to switch back to ATT next month.

Thanks for the help!

[Uliwooly]

anytime

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) LTE (2012–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 [3][4]
U.S. Cellular	800 MHz, 1900 MHz

[Jmaxim]

I have the 6602 purchased at the Sony store in the US and as far as I know you cannot get LTE with AT&T. The best I can get is H+. Also, my understanding is you will be able to get LTE on T-Mobile when it is released by that carrier.

[Uliwooly]

Indeed its not going to work with AT&T's LTE at all 

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