gsm cdma?? what that? which hard spl

[chaos_taker]

hi
i know gsm and cdma (umts) are two typs off mobilfunk standards.

but what is with the htc dt??
do there exists two typs??? one, that can do both and one which can do only cdma???
my htc td can gsm and cdma ( in germany). i'am normaly in gsm mode, to save batery, but sometimes i switch to cdma to do a videocall some times.
it is a htc touch diamond with vodafone branding.
is it a gsm htc td or a cdma htc td??
what hard spl must i take?
where can i get the orginal vodafone spl, because off warenty reasons.
the rom can i download at vodafone.de
MFG!

know anyone, when vodafone released the rom 2.0?? now i can only load 1.97

[Addicteddddd]

GSM = european version
CDMA = american version (different frequency radios)

DO NOT FLASH IF YOU DONT KNOW WHICH YOU ARE
THIS WILL BRICK YOU PHONE IF YOU FLASH THE WRONG SORT

rant over, apart from that, read up :)


gsm mode, to save batery, but sometimes i switch to cdma to do a videocall some times.


that makes no sense?
you mean you are usually in GSM mode, but you switch to 3G?

[chaos_taker]

THANK YOU!!!!!!
yes i mean i switch to 3G for videocalls

so i can think if i had a normal touch diamond from vodafone in germany ( thats in europe!) :) i had the normal gsm mode.

where can i find the orginal spl wich is on vodafone handys?

this little text would be very helpful in some tutorials!
=================================
GSM = european version
CDMA = american version (different frequency radios)
=================================

[Kevbodian]

hi
i know gsm and cdma (umts) are two typs off mobilfunk standards.

but what is with the htc dt??
do there exists two typs??? one, that can do both and one which can do only cdma???
my htc td can gsm and cdma ( in germany). i'am normaly in gsm mode, to save batery, but sometimes i switch to cdma to do a videocall some times.
it is a htc touch diamond with vodafone branding.
is it a gsm htc td or a cdma htc td??
what hard spl must i take?
where can i get the orginal vodafone spl, because off warenty reasons.
the rom can i download at vodafone.de
MFG!

know anyone, when vodafone released the rom 2.0?? now i can only load 1.97

OK... a few things.

UMTS (universal mobile telecommunications system) = WCDMA (wideband code division multiple access)

Most networks that offered GSM upgraded there networks to support GPRS then EDGE then upgraded to the UMTS standard to then support HSDPA and HSUPA and beyond.

There is another technology used all over the world but has a significantly smaller user base and market share is CDMA. While the name CDMA and WCDMA are similar, the technology is not. Traditional CDMA networks cannot [cheaply] upgrade to WCDMA/UMTS networks.

In your case, mobilfunk; they went live in May 1994 with their GSM network and in August 2004 they went live with their UMTS network.

It is a fact that GSM mode will save you battery life. UMTS connections typically drain up to 20% more energy than GSM alone.


Getting back on topic, the HTC touch diamond was originally offered in Europe and Asia with triband GSM support and some (I can't recall the bands) 3G support. It was then brought to the USA and released with a slightly different band configuration to better suit the american market. As this american market is quite large, HTC then made a CDMA (not WCDMA) version to work on Verizon and Sprint. While the phones look exactly the same, their internal hardware is a little different. As a result, you may not flash many GSM-version diamond roms and hardspl etc because the chipsets are different. If you do flash them, you will have issues. This is why there are many many warnings telling CDMA users to bugger off or GSM users the same.

Your diamond is a device which supports GSM/WCDMA technologies. It will NOT work on a CDMA only network. IE: Come to Japan and you will roam on Softbank (formerly vodafone) or Docomo, whichever company your mobilfunk has a roaming agreement with. You will not, however, be able to roam on the AU by KDDI network.

The version of hard-spl is up to you. There is the unsigned and the signed. To complicate things further there are a few versions of the unsigned. For me, the 1.93.Olinex (unsigned) is the best. The benefit to the signed version is that you will only be able to flash the roms that have been proven to NOT BE harmful to your device.

If you have already flashed Hardspl, you will have to use the SEARCH feature of the forum to find that SPL or the search feature of the internets :) called GOOGLE.

If you have not flashed hardspl yet, then you may be able to dump (record your SPL to a file on your PC) your SPL so that you may write it later if necessary.

More about WCDMA here (http://en.wikipedia.org/wiki/W-CDMA_(UMTS)).

More about networks supporting UMTS and GSM found here (http://gsmworld.com/roaming/gsminfo/index.shtml).

Also a little info about the term 3G. 3G represents a generation of mobile data speed technologies (i guess). When WCDMA first went live (in Japan), it was known as 3G (~2001) supporting data up to 384kpbs. The next stage in the 3G evolution is called HSDPA (some people call it 3.5G). It will be fun when HSUPA and HSPA+ rear their sexy heads.

[chaos_taker]

THANK YOU!!!!!!!!!!!!!!!!:)
you are my new hero!!!!!
many thanks to you for the large text. now i know what i want.

how can i record/save/copy my orginal vodafone spl?? :confused:
could i flash a orginal htc rom 2.0 with my old spl ??? :)
is there a different spl from vodafone to the other phones,like orginal, o2 , t-mobil???or have all the same???


thanks again to Kevbodian :)

[jewelzeem]

i flash my gsm dimond with cdma dimond unloker . is there any way nto relife it again . it was hardspl with dimond hard spl . now it is no power. what to do.

[nicho250906]

UMTS (universal mobile telecommunications system) = WCDMA (wideband code division multiple access)

i think the CDMA u mean for video call is WCDMA/UMTS/3G..

GSM = european version
CDMA = american version (different frequency radios)

GSM: standard technology for Europe second generation(2G)

GSM 900
* uplink: 890 – 915 MHz
* downlink : 935- 960 MHz
* duplex spacing: 45 MHz
* wide of RF canal : 200KHz
* modulation : GMSK
* multiple access : FDMA-TDMA (1 RF have 8 canal TDMA)

GSM 1800
* uplink : 1710 – 1785MHz
* downlink : 1805 – 1880 MHz
* Duplex spacing : 95 MHz
* wide of RF canal: 200KHz
* multiple access : FDMA-TDMA

CDMA: standard technology for America second generation (2G)
CDMA 800
* uplink : 824 – 849 MHz
* downlink : 869 – 894 MHz
* Wide of RF canal : 1.25 MHz
* chip rate : 1.228 Mcps
* multiple access : CDMA

CDMA 1900
* uplink : 1850 – 1910 MHz
* downlink : 1930 – 1990 MHz

@Kevbodian: Its complete man..great explanation...:D