MT15a X MT15i?

[#1]

Hello,

Does anybody know the difference between the Xperia Neo MT15a and the MT15i? I can't find the this information anywhere...

[uliwooly-wooly · Accepted solution]

the 3G bands

3G frequencies

MT15i	HSDPA 900 / 2100
MT15a	HSDPA 850 / 1900 / 2100 / 800

in other words, if you live in the US

MT15i will work with Tmobile and MT15a with AT&T

the i version works with most countries all over the world and the a version mostly the americas

[#3]

Thank you very much again, uliwooly-wooly! 😃

Do you think there will be any problem if I use a firmare for MT15i on my MT15a? I use the 2100 3G frequence.

[uliwooly-wooly]

you are only using the firmware the 3G bands stay the same. I know that for a fact on other Xperias so if you use MT15i software on MT15a, it will work as an MT15a

[#5]

Thank you again! =D

[uliwooly-wooly]

anytime

[#7]

Sorry, but incorrect.

T-Mobile uses the AWS band which is 1700 MHz.  Not supported by the "i" version nor the "a" version.  There is no 3G T-Mobile (US) compatible version.  The 900/2100 MHz 3G bands are used in Europe and Asia primarily.

[uliwooly-wooly]

T-mobile USA utilize

2G/Edge          850 MHz / 1900 MHz

3G/H               1700 MHz / 2100 MHz

[#9]

Since your original reply referred to the "3G" frequencies, it implies that both AT&T and T-Mobile will work on 3G with this phone.

AT&T will get 3G with the "a" version only.  T-Mobile will get 2G only with either version.

[uliwooly-wooly]

not at all

MT15a

2G  850 / 900 / 1800 / 1900

3G HSDPA 850 / 1900 / 2100 / 800

MT15i

2G/Edge                     850 / 900 / 1800 / 1900

HSDPA 3G/H               900 MHz / 2100 MHz

Tmobile USA

2G                        850 MHz/1900MHz

3G                        1700 MHz / 2100 MHz

AT&T

2G                          850 MHz/ 1900 MHz 

3G                          850MHz/900MHz/1900MHz/700MHz