HTC One M8 DualSIM - LTE 800Mhz - One (M8) Q&A, Help & Troubleshooting

hello
Is it possible to unlock the machine to operate at 800MHz LTE?

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HTC HD2

Hi.
Is it possible to change the opperating frequency from 900Mhz to 850Mhz on this phone?

Desire under AT&T

Hi, I'm planning to buy one of unlocked Desire on Ebay. there is only one thing bother me. Will desire work under AT&T's 3G network? I know it will definitely work under 2G(EDGE) network, but how about 3G?
I think AT&T uses 850/1900/2100 Mhz band, and the Desire support 1900/2100 Mhz, will that works?
BTW: I'm in Illinois if you are trying to say AT&T is using different band in different states.
thank you very much

[Q] European Desire HD in USA

Hi everyone,
I bought my Desire HD in europe and i have RCMix Custom ROM on it.
This smmer im going to the USA and i was wondering Is my phone going to work on all USA Mobile carriers like Verizon, AT&T and others ?
as long as your phone is unlocked, then why not!
You probably want to double check the DHDs supported frequency bands with that of the US networks.
I'm sure the HTC Inspire is the US version of the DHD that has US carrier support.
From the HTC Spec List:
htcwebsite said:
Network 4
Europe:
HSPA/WCDMA: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
Asia Pacific:
HSPA/WCDMA: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
Click to expand...
Click to collapse
The next step is for you to check the frequencies used by the US networks (I'm not doing everything for you!!!*) and compare to this list.
I know Verizon still uses 800MHz in some areas (not supported).
*@Andy, I'm nice but I'm not THAT nice!

[Q] Dual band Wildfire 1st gen? Is there such a thing?

Hi folks,
I've just acquired a first gen Wildfire which is currently running "Vibhu's ROM Froyo Wildfire".
The phone works fine with SIMs from two carriers but doesn't work with SIMs from the carrier I use (NZ TeIecom in New Zealand). NZ Telecom use 850/2100 Mhz here whereas the other two operators use 900/1800Mhz.
I've been told that my Wildfire isn't quad band and doesn't support 850/2100 but all the specs, articles and web pages I find have the phone as quad band.
So can anyone tell me if there are such things as dual band Wildfire handsets?
If not, I understand that the phone was running a custom ROM and was flashed with the current software before I got it. Is it possible that it could have been flashed with an incorrect software?
Thanks in advance.
M

UK HTC One M8 and LTE version and 4G band question.

I'm looking at upgrading my M7 to the M8 and have become aware of the 4G-LTE versions that are available, basically the O2 and Tesco network providers here in the UK only seem to support 800mhz for 4G and LTE M8's don't support 800mhz on the 4G band as I'm with Tesco then the LTE versio of the M8 is no good for me. If I root the M8 is there a way to unlock the 800mhz band for 4G on LTE versions of the M8 at all or any other way around this as all the cheaper prices for the M8 when I look online are the LTE version of the phone

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