dated before January 19th 2003
Subject: Looking for GSM1900 firm
Date: 21 Dec, 2002 11:40:15
Could anybody help me to find a flash for GSM1900 radio ?
Subject: GSM 1900
From: XDA developers
Date: 21 Dec, 2002 14:22:32
Indications we have received seem to indicate the 900/1800 and
900/1900 radios are actually different parts, and not just
different firmware images.
More knowledge on the phone will be free. We'll keep you posted
Subject: 1900 band on off info
From: Laisvunas Lithuania
Date: 21 Dec, 2002 21:07:09
-tipps -Allgemeine Tipps - info in german.From Bootloader menu.
Subject: GSM 1900 ROM
Date: 22 Dec, 2002 12:16:59
Well, I asked for the ROM, not how to switch as I did know about
that feature quid a while. GSM 1900 ROM are different. GSM 1900
ROMs start with version Number 6.xx
@ XDA developers
But it is possible to flash a 6.xx Rom on a non GSM 1900 XDA,
why not try ?? In the end it would be my device which might be
crashed. But all information about hardware is always welcome
From: XDA developers
Date: 22 Dec, 2002 17:28:25
Finally someone tested.
> I have access to a US T-Mobile PPC in the UK, and I can
> definitely say that it can't find either the T-Mobile or
> 1800MHz networks in the UK, whatever bands are set in the
> phone settings or via the bootloader. O2 and Vodafone are
> found, probably because they're both on 900MHz here.
In other words, at least just changing the settings in the
bootloader doesn't help to make the US phone do 1800. For now
we're assuming new Radio firmware will also not do the trick, as
we have indications that the radio parts are actually different.
We'll keep you posted.
Subject: 900 flash on 1900 unit
Date: 23 Dec, 2002 07:22:46
If you flash the 4.xx on a US 900/1900 unit, you will render it
T-MOBILE just came out with the update in the last couple of
You need a 10-digit US t-mobile number to download the update.
Make up a number in the format 801808xxxx as this is a prefix
belonging to them.
The file is a ROM update to 3.14, which internally includes an
auto-updater that puts GSM ROM 6.18 on the unit. Worked great