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Master Geek


Topic # 59675 9-Apr-2010 08:30
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i re-flashed my htc touch pro2 with a gsm rom, it has signal issue with my XT sim card.
i'm wondering, is WCDMA a 'cdma' so i need to re-flash my phone with cdma version rom?
previously my phone worked fine with a vodafone sim card, but that sim card could be gsm card that's why the phone was ok.
anybody has any suggestions?

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  Reply # 316420 9-Apr-2010 08:32
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The HTC Touch Pro2 works on the 900/2100 3G frequencies used by Vodafone.

It does not support the 850MHz frequency used by XT and will not work on the network. It is only suitable for using on Vodafone or 2degrees.

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  Reply # 316422 9-Apr-2010 08:34
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sbiddle: The HTC Touch Pro2 works on the 850/2100 3G frequencies used by Vodafone.


It does not support the 850MHz frequency used by XT and will not work on the network. It is only suitable for using on Vodafone or 2degrees.



Like to edit the post with the correct frequencies Cool




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Old3eyes


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Reply # 316423 9-Apr-2010 08:35
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sbiddle: The HTC Touch Pro2 works on the 850/2100 3G frequencies used by Vodafone.

It does not support the 850MHz frequency used by XT and will not work on the network. It is only suitable for using on Vodafone or 2degrees.


He means 900/2100

Vodafone NZ 3G network is 900/2100

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  Reply # 316425 9-Apr-2010 08:40
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Oops yes my mistake.. fixed now!

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  Reply # 316426 9-Apr-2010 08:42
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and no firmware flash will change this on the handset

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  Reply # 316427 9-Apr-2010 08:47
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Just to clarify the answers. Both Telecom XT and Vodafone 3G are WCDMA networks.

WCDMA is 3G. GSM is 2G.

Current WCDMA devices support both 2G and 3G. This is good if you travel overseas and need roaming.

Howerver, each service uses different bands. As said Vodafone uses 900/2100 WCDMA and Telecom XT uses 850 WCDMA.

You device does not support 850 WCDMA. It's a hardware limitation and there's no software that will change that.





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  Reply # 316435 9-Apr-2010 09:11
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Telecom do actually supply the HTC Touch Pro2 on the XT network - it may not be as simple as saying it will not work on XT?

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  Reply # 316444 9-Apr-2010 09:21
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hi thanks guys for quick replys!
to clarify, i got my touch pro 2 from shanghai, but not sure where it's originally from: it doesn't have any carrier's name on it. i talked to telecom stuff, and was told this 850 band thing. i did find 850 on my device, since the network/band selection is set to auto, i'd assume it will switch to 850 when needed?
further finding is i can use it with xt sim in center auckland, but not from where i live - east auckland. after reading an article here at geekzone, i think it's because center auckland has 2100 coverage while where i live doesn't? but why my phone doesn't work on 850 then? the phone's not with me now but i'll have another look tonight. hopefully post a screen capture so someone maybe able to diagnose it for me :)
and yes telecom does have touch pro2, do you think if i can get hold a copy of their rom and re-flash my phone it would help? what if i just re-flash the radio-rom not the whole system, would that help too?

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  Reply # 316446 9-Apr-2010 09:22
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Worth mentioning XT does have 2100 coverage in major cities and towns. Not full coverage like the 850 band but the phone, if flashed correctly would work in those areas.

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  Reply # 316447 9-Apr-2010 09:26
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Might be GSM 850 and this is no good for XT

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  Reply # 316448 9-Apr-2010 09:27
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it might support 850 GSM but not 850 3G

Edit: Posted same time as above

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  Reply # 316450 9-Apr-2010 09:34
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nutbugs: Telecom do actually supply the HTC Touch Pro2 on the XT network - it may not be as simple as saying it will not work on XT?


Just had a look at the Telecom site.  Nice fone but rather expensive even on a 24 month plan.  I can see why people in the US are slow to take on  the Nexus One.  Their carriers subsidized plans seem to be way better than here in NZ..




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  Reply # 316452 9-Apr-2010 09:37
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Reflashing the phone with different firmware won't work as the radio chipset won't support the 850 WCDMA frequency.



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  Reply # 316466 9-Apr-2010 10:30
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old3eyes:
nutbugs: Telecom do actually supply the HTC Touch Pro2 on the XT network - it may not be as simple as saying it will not work on XT?


Just had a look at the Telecom site.  Nice fone but rather expensive even on a 24 month plan.  I can see why people in the US are slow to take on  the Nexus One.  Their carriers subsidized plans seem to be way better than here in NZ..


i got my phone half a year ago from shanghai, cost me $850, now it costs about 600, way cheaper than its price here in nz.

i just had a look of htc website, got this:




Network
HSPA/WCDMA:



  • Europe/Asia: 900/2100 MHz


  • Up to 2 Mbps up-link and 7.2 Mbps down-link speeds


Quad-band GSM/GPRS/EDGE:


  • Europe/Asia: 850/900/1800/1900 MHz
    (Band frequency, HSPA availability, and data speed are operator dependent.)






i wanna cry now...

will have to sell it since i'll stick with my xt sim card...

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