Database Develop

Problem with 3g and band operator?

Hey guys, i need help please!!!!!
I´ve changed of cell operator ,and now my 3g doesn´t work with android 4.3, but when i came back to android 4.2.2, it does. I have a xperia Z C6603
I think that i have a problem with baseband, because the company use 1900 band , and , i don't have that baseband.
maybe the 4.2.2 version have that band?
Are there a way to integrated that band on my smartphone with android 4.3 because i need that version , i dont want the old one , please

The C6603 definitely has the GSM 1900 band whichever firmware you're using. I'm on an unbranded 4.3 firmware and I have it.
To check, enter *#*#7378423#*#* in the dialler, then look in Service info - Configuration.
I would check your APN settings if you haven't already, or try downloading them through Settings - Wireless and networks - Internet settings.
Sent from my C6603 using Tapatalk

[Q] Xperia TL LTE Band Questions

Hello All,
I got a Xperia TL (LT30AT) with original AT&T ICS (4.0.4) on it, I want flash it with JB 4.3 LT30P Rom, according to other threads I need exclude the baseband in order to keep LTE, so quick questions:
1.- Do I need to first flash it with AT&T JB 4.1.2 first in order to have the latest LTE baseband? or is OK to flash it from 4.0.4 to 4.3 with baseband excluded?
2.- Why the we need to exclude the baseband when flashing this phone with LT30p firmware?, as far as I understand the LTE capability is hardware related, if you flash lt30p with lt30at rom you must not gain LTE, so why flashing lt30at with lt30p rom lose LTE option?
Regards!

You answered your own question about the flashing lt30at with a lt30p. So the baseband holds all the drivers/code for the phone.
The best example I can give you is the ps3, sure all the hardware and the boards are the same, but there are slight differences in the chipset, this means that old software from a old ps3 won't work on a new ps3 model, hence a min version downgrade that can be performed.
The same sort of applies here, because of the slight differences in the chipset you can't use a baseband from one on the other.
"To give up is a sign of your weaknesses, but to keep going is a sign of madness"

thanks dude,
but regarding question 1, do JB AT&T hold new baseband version?, or I can go straight to 4.3 from LT30p?

eldarkino said:
thanks dude,
but regarding question 1, do JB AT&T hold new baseband version?, or I can go straight to 4.3 from LT30p?
Click to expand...
Click to collapse
If I were you, I would flash baseband from 9.2.A.0.295 Bell Canada, that is android 4.3
which you can find here http://forum.xda-developers.com/showthread.php?t=2648320

istux said:
If I were you, I would flash baseband from 9.2.A.0.295 Bell Canada, that is android 4.3
which you can find here http://forum.xda-developers.com/showthread.php?t=2648320
Click to expand...
Click to collapse
but LT30a has additional bands that LT30at does not:
4G Network
LT30at - (BC4) 1700 MHz, (BC17) 700 MHz,
LT30a - (BC2) 1900 MHz, (BC4) 1700 MHz, (BC5) 850 MHz, (BC17) 700 MHz
or does not matter?

eldarkino said:
but LT30a has additional bands that LT30at does not:
4G Network
LT30at - (BC4) 1700 MHz, (BC17) 700 MHz,
LT30a - (BC2) 1900 MHz, (BC4) 1700 MHz, (BC5) 850 MHz, (BC17) 700 MHz
or does not matter?
Click to expand...
Click to collapse
Good question, I didn't know that.
LT30at is a different phone technically?
Anyway you can flash 4.1.2 baseband for the moment, I know it works.
Have you seen this thread? http://forum.xda-developers.com/showthread.php?t=2695394

istux said:
Good question, I didn't know that.
LT30at is a different phone technically?
Anyway you can flash 4.1.2 baseband for the moment, I know it works.
Have you seen this thread? http://forum.xda-developers.com/showthread.php?t=2695394
Click to expand...
Click to collapse
Hello dude, thanks for the thread I will follow that guide, and yes LT30at is a unique version released in US only for AT&T specific lte networks,
Also there is a little issue in your firmware compilation thread, lt30at = xperia TL, lt30a = xperia T, you can see the white papers on sony website
Xperia T (LT30p) White Paper
Xperia T (LT30a) White Paper
Xperia TL (LT30at) White Paper
Also you can add the only 2 firmwares that were released to the lt30at to your list they are ATT US branded:
ICS (1264-5716) LT30at_7.0.B.1.152_ATT.zip
JB (1264-5716) LT30at_9.1.F.1.120_ATT.zip, this links were updated by XDA user spectre51
Regards!

eldarkino said:
Hello dude, thanks for the thread I will follow that guide, and yes LT30at is a unique version released in US only for AT&T specific lte networks,
Also there is a little issue in your firmware compilation thread, lt30at = xperia TL, lt30a = xperia T, you can see the white papers on sony website
Xperia T (LT30p) White Paper
Xperia T (LT30a) White Paper
Xperia TL (LT30at) White Paper
Also you can add the only 2 firmwares that were released to the lt30at to your list they are ATT US branded:
ICS (1264-5716) LT30at_7.0.B.1.152_ATT.zip
JB (1264-5716) LT30at_9.1.F.1.120_ATT.zip, this links were updated by XDA user spectre51
Regards!
Click to expand...
Click to collapse
Very good :good:
I will update my list for sure!

help

Pls can yhu guys help mhe?? My xperia z doesn't get netwrk in wcdma mode... Am in nigeria.. It supports my band

[Q] Xperia Z1 C6903 bought in Europe, data doesn't work in Canada

Hi everyone,
I bought my Z1 in France and now that I am in Canada, I can't have my data working (no 4g/3g/E).
I was told that the Xperia Z1 was working both in Europe and N.America, so I wonder if you have any solutions for me ?
Here are some specs :
Model : C6903
Android 4.4.4
Build : 14.4.A.0.157
Baseband : 8974-AAAAANAZQ-10270054-61
Not rooted
Currently in Québec with Virgin Mobile
When I choose my provider in the settings i can see 3G - VIRGIN and 4G - VIRGIN, does that means my cellphone can see there is data but VIRGIN didn't allow me access ?
I switched my plan yesterday night so maybe it takes time, I just imagined it was a quick process.
Thanks for your time, folks!

dichra said:
Hi everyone,
I bought my Z1 in France and now that I am in Canada, I can't have my data working (no 4g/3g/E).
I was told that the Xperia Z1 was working both in Europe and N.America, so I wonder if you have any solutions for me ?
Here are some specs :
Model : C6903
Android 4.4.4
Build : 14.4.A.0.157
Baseband : 8974-AAAAANAZQ-10270054-61
Not rooted
Currently in Québec with Virgin Mobile
When I choose my provider in the settings i can see 3G - VIRGIN and 4G - VIRGIN, does that means my cellphone can see there is data but VIRGIN didn't allow me access ?
I switched my plan yesterday night so maybe it takes time, I just imagined it was a quick process.
Thanks for your time, folks!
Click to expand...
Click to collapse
You're in the wrong forum mate. Use this one:
http://forum.xda-developers.com/xperia-z1/

Oops, please accept my shameful appology. .
Danke schoen my friend

Need FTF for Sony Xperia Z C6603 .

Help guys. I need FTF FW for Sony Zperia Z C6603 that supports my LTE. Because i have flashed Customizer by MEA and LTE not Working . please give me a link of working LTE . i have LTE Sim .

Need LTE FTF please. So Need Help Guys.