[ce71]

Hi,

I apologize if I did not word my question correctly, but hopefully you can understand what I'm asking.

The background story is this: I might purchase an unlocked, ATT 9900. My carrier is TMobile and I'm wondering if I can clear that ATT device and just install the official TMobile OS/Software. Is this possible?

Also, I previously had a Bold 9780 and I backed up everything. Will I be able to restore some data (contacts, etc) on the 9900?

Appreciate any help.

Thanks!

[anon(153966)]

You can if you delete the vendor.xml file, then proceed with the install...

[ce71]

I just searched the forum and found tons of information. Thanks for your response!

[robsteve]

Will the AT&T 9900 have the proper frequencys for T-mobile? I think they are different and the T-mobile needs bands 1,4.8.

[anon(153966)]

Will the AT&T 9900 have the proper frequencys for T-mobile? I think they are different and the T-mobile needs bands 1,4.8.

It will work, albeit like you said you MAY not get the same level of connectivity service...

Posted via Navi's CB10

[heading4tomorrow]

Question is, why do you want to load tmo os?
Carrier doesnt care which OS you are using. Do you want to get UMA?


Sent from my BlackBerry 9900 �Slow CB App�

[eve6er69]

Question is, why do you want to load tmo os?
Carrier doesnt care which OS you are using. Do you want to get UMA?


Sent from my BlackBerry 9900 �Slow CB App�

Correct. As long as you have a tmo sim and delete the vendor file you will get all the tmo splash screens etc...

Sent from my game boy color

[ralph7202]

I have an BB9900 from AT&T, I installed the OS from T_Mobile to get 3G 1,4,8 because AT&T is 3g 1,2,5,6 and I need 3G 1,4,8, but When I cheked the advanced options I still have 3G 1,2,5,6 bands. I wonder if that�s because I din�t erased all data I just reintalled the new OS, What sould I do? a wipe with Jm Cl loader, please Help me cause I have a 9930 and is CDMA on 3G I don�t want to change my phone again.
best regards
rafa

[sibeans]

Hi,

I apologize if I did not word my question correctly, but hopefully you can understand what I'm asking.

The background story is this: I might purchase an unlocked, ATT 9900. My carrier is TMobile and I'm wondering if I can clear that ATT device and just install the official TMobile OS/Software. Is this possible?

Also, I previously had a Bold 9780 and I backed up everything. Will I be able to restore some data (contacts, etc) on the 9900?

Appreciate any help.

Thanks!

I'm interested with this as I have an ATT 9900 on the way and I'm on T-Mobile too. Could you post the found threads for this? Thanks!