[Radio Rom Hack] UTMS 1900

[1wayjonny]

Guys,

the jasjar is capable of getting 1900mhz band but my question is can you mod the radio rom to use 1900 for UTMS instead of 2100?

i know its never been done but dosent mean its not possible unless some kind of hardware issue.

please let me know what you guys think, this would be a great hack so we in the USA using the Cingular network can have 3G

-1way

[AlanJC]

It's my understanding that while the Qualcomm chipset is capable of this, there are licensing implications, and the radio rom has never had the necessary software switches activated.

Also, there's going to be a hardware issue with necessary aerial for UMTS on that band missing I would assume.

[1wayjonny]

well i see in the NETWORK/BAND area of the jasjar it says 1900PCS so i woudl think t he ant would be capable of getting a 1900 signal

can we take the radio rom from other cingular 3g devices and have one look at the "switches" to add then to a HTC universal radio rom?

this would be awesome as i am bummed out that my over 1,000 phone cant connect to 3g because cingular used 1900 instead of 2100..

why cant the world be standard already...

**EDIT**

[Cingular Blackjack Specs USA 3G]
# Dual-band domestic UMTS/HSDPA - 850/1900 MHz
# Quad-band GSM/GPRS/EDGE - 850/900/1800/1900 MHz

[Imate Jasjar Specs WW 3G]
#Dual-Mode UMTS/GSM
# Tri-Band GSM/GPRS (900/1800/1900) + WCDMA(UMTS) (2100MHz

[darkjedi]

Oh if this were possible I would love this so much :D GPRS is just too slow :(

[AlanJC]

well i see in the NETWORK/BAND area of the jasjar it says 1900PCS so i woudl think t he ant would be capable of getting a 1900 signal

That's on the GSM chipset though, not the UMTS Qualcomm chipset.

can we take the radio rom from other cingular 3g devices and have one look at the "switches" to add then to a HTC universal radio rom?

I'm pretty certain, over a year on from it's release, if it was possible, someone would have done it.

this would be awesome as i am bummed out that my over 1,000 phone cant connect to 3g because cingular used 1900 instead of 2100..

why cant the world be standard already...

The world does have a standard, the USA just never adopts it.

[1wayjonny]

That's on the GSM chipset though, not the UMTS Qualcomm chipset.


Ah ok but the ant question is still up in the air



I'm pretty certain, over a year on from it's release, if it was possible, someone would have done it.
yea but things aren't done until properly motivated, being the 3g service is new here in the USA and the rest of this forum has had not reason to really... its efforts seemed deeply untapped... =)



The world does have a standard, the USA just never adopts it.
yes tell me about it, here use GSM/UTMS but make it non standard....

well its because 2100 is in use over here....

but this hack would be such a great feature for all us XDA USA members who just got shot by cingular...

no 3g cause my expensive phone dosent support it...

[dewild1]

I will give $200 to someone to do it.

[kchris]

he world does have a standard, the USA just never adopts it.

That's the point! :) :)

[1wayjonny]

I will give $200 to someone to do it.

i would start a pot and donate 200 myself!!!

but we would need to find out if its possible before collecting money :)

[snipes mcgee]

UMTS on 1900 isn't even my annoyance. I just want quad band compatibility! I go to a University I *live* on the more urban side of the campus, but my classes are 15 mins away, in a more rural area...and the service SUCKS. I get so tired of the 'no service' beep in my bluetooh, I just turn the phone mode off. But then I'm unreachable...

I really wish I could get all four bands...-crosses fingers- C'mon 850...!

[dewild1]

UMTS on 1900 isn't even my annoyance. I just want quad band compatibility! I go to a University I *live* on the more urban side of the campus, but my classes are 15 mins away, in a more rural area...and the service SUCKS. I get so tired of the 'no service' beep in my bluetooh, I just turn the phone mode off. But then I'm unreachable...

I really wish I could get all four bands...-crosses fingers- C'mon 850...!

Get an external antenna, or do everyone a favor in your class, hall this around! http://www.wpsantennas.com/index.asp?PageAction=VIEWPROD&ProdID=509

[snipes mcgee]

Get an external antenna, or do everyone a favor in your class, hall this around! http://www.wpsantennas.com/index.asp?PageAction=VIEWPROD&ProdID=509

Oh wow. Thanks, but I do not need the whole school thinking I have emphysema with that oxygen tank-looking thing in my room...lol.

[jmallen]

I will give $200 to someone to do it.
I would double that!