Change frequency band.. Possible?

[Guest azza6]

Hey guys, just wondering..

I've got an i8000H which I bought off ebay (I love this phone!)

The only problem is it runs on the 900hz 3g network when I need an 850hz network.

Is it possible to flash with a ROM that has this like the i8000T? (Australian model)

Thanks,

Azz.

[Guest cumonifyoucan]

Hey guys, just wondering..

I've got an i8000H which I bought off ebay (I love this phone!)

The only problem is it runs on the 900hz 3g network when I need an 850hz network.

Is it possible to flash with a ROM that has this like the i8000T? (Australian model)

Thanks,

Azz.

1. 
   
   

It is not dependent upon the rom. The RF is internally programmed on the phone. It should automatically detect it once it detects a particular sim card.

as far as your question goes can we change the RF --yes we can --but I do not suggest it.

Multi-band

Further information: List of HSPA mobile phones, List of UMTS networks

Today, most mobiles support multiple bands as used in different countries to facilitate roaming. These are typically referred to as multi-band phones. Dual-band phones can cover networks in pairs such as 2100/900 (bands I/VIII) in Europe, Middle East, Asia, Oceania or 1900/850MHz (bands II/V) in North and South America. With the recent release of AWS spectrum (band IV) in North America, the dual-band combo of 1700/2100 is also becoming popular there.

European/Asian tri-band phones typically cover the 900, 1900 and 2100MHz bands giving good coverage in Europe and allowing very limited use in North America, while North American tri-band phones utilize 850, 1900 and 2100MHz for widespread North & South American service and good coverage for worldwide use thanks to the popularity of the 2100MHz spectrum. AWS versions of phones support normally 900/1700/2100 allowing for North American coverage on AWS enabled networks and roaming coverage on 2100MHz and on forthcoming 900MHz overlays in Europe and Asia.

Most UMTS phones also operate on GSM as well, supporting EDGE to ensure data coverage where HSPA still lacks coverage. Note however, that while a phone may have overlapping GSM & UMTS frequency support, being tri-band/quad-band in GSM/GPRS/EDGE does not imply the same support for UMTS, as was the case with many early 2100MHz-only UMTS devices.

Operating Band Frequency Band Common Name UL Frequencies UE transmit (MHz) DL Frequencies UE receive (MHz) Channel Number (UARFCN) UL Channel Number (UARFCN) DL Region

V 850 CLR 824 - 849 869 - 894 4132 - 4233 additional 782, 787, 807, 812, 837, 862 4357 - 4458 additional 1007, 1012, 1032, 1037, 1062, 1087 Americas (AT&T, Bell Mobility, Telus, Rogers), Oceania (Telstra, Telecom NZ)

VIII 900 GSM 880 - 915 925 - 960 2712 - 2863 2937 - 3088 Europe[1], Asia, Oceania (Optus, Vodafone AU, Vodafone NZ), Venezuela (DIGITEL)

[Guest azza6]

It is not dependent upon the rom. The RF is internally programmed on the phone. It should automatically detect it once it detects a particular sim card.

as far as your question goes can we change the RF --yes we can --but I do not suggest it.

Why do you not reccomend it? And how do I do it??? I'm VERY VERY keen to change it.. I can only get EDGE reception. So web browsing is sloooowwwww.

I need to get it onto that Oceanic 850 one for the Telstra network.

Please tell me more!

EDIT: Thanks BTW, you're one of the first people to really help me out with this.. :)

Edited July 6, 2010 by azza6

[Guest cumonifyoucan]

Why do you not reccomend it? And how do I do it??? I'm VERY VERY keen to change it.. I can only get EDGE reception. So web browsing is sloooowwwww.

I need to get it onto that Oceanic 850 one for the Telstra network.

Please tell me more!

EDIT: Thanks BTW, you're one of the first people to really help me out with this.. :)

Hey listen bud I am not from US and do not know what kind of network Telstra runs.

OK what I am saying is that if you need to change it to the GSM 850 band or any other band for that matter. Use good ole Settings --Network tab---.

I am warning you falling into the trap of using *#2280# and making and changes there. Those are expert level changes and once gone bad are hard to recover.

I barely managed to get my phone back to working after playing around with it like a month ago.

There is also network provider simkit icon that you can use to recalibrate your sim card. This will depend upon your country and your service provider.