Panasonic VS7 Band Change

[German_AC]

Hi, I'm using PhoneTool v9.5 and in the status screen it says that may VS7 is really quadband supporting 850/900/1800/1900

This is what it shows:

Target SW Ver: NBG_LEOPARD_05.24 SMARTI_SDB1 SGOLDliteV1.1
Target EEP Ver: 150
RF Band Support: 850 & 900 & 1800 & 1900Mhz
RF:
BaseBand: S-GOLDlite v1.1
Features present: FFS, BlueTooth, AM/FM Radio., MPEG3, Voice Rec, Reduced Signaling Test, Camera, LED & Backlight, IrDa, Monitor Sig.,

I'm trying to change the 900 band to 850 since here in southamerica the carriers only use 850/1800, so in rural zones (or not big urban citys) I have no coverage.
So, ¿anyone knows if this is posible?
If it is, how do I change bands??

Thanks a lot!

[German_AC]

Anyone??

[carcomptoy]

I think that's just a software glitch...Panasonic themself say it's triband:o

[German_AC]

...Panasonic themself say it's triband:o

Yes, but don´t you think that the phone could be ready to work in both configurations?
850/1800/1900 for USA/LATIN AMERICA
900/1800/1900 for EUROPE

And I just got the Europe version? I don't know for sure, I hope someone could help me if that's possible!
Thanks!

[carcomptoy]

Well, frequency is a hardware issue...you can't just take say a Eurasian dual band phone (900/1800MHz) and change the software to be American dual band (850/1900MHz). It simply doesn't work. It's not like it's a radio that you can change the frequency that just isn't there.

[German_AC]

So, you are saying that the phone doesn't support 850 by hardware?
I was reading is some places and the S-GOLDlite v1.1 (RF Chip) appears to support quad band opperation, so I thought that Panasonic just unable 850 via software (or firmware) and there was a way to turn it back on.

[carcomptoy]

As much as I know, it doesn't have 850MHz hardware support, which is what it needs. If there's some conspiracy that Panasonic disabled 850MHz, then I don't know...seems unlikely though.

[German_AC]

Ok thanks!

[German_AC]

Well, the confirmation is here

http://www.infineon.com/cgi-bin/ifx/portal/ep/contentView.do?channelId=-65777&prgId=&yearId=-73845&contentId=136719&programId=40131&pageTypeId=17226&contentType=NEWS&endIndex=1&quarterId=All&startIndex=0&searchString=panasonic&channelPage=%2Fep%2Fchannel%2FnewsChannel.jsp

This is the document of the VS7 chip manufacturer (infineon) and it says that the phone have fully support to 850/1900 - 900/1800.
It uses S-Goldlite with SmartI SD chips.
The only problem still being how to turn on 850 support. :(

[carcomptoy]

Hmmm well it might have the support for it, but it probably doesn't have the antenna to pick it up. Idk I'm not sure because I don't know the technicals that well, especially of Panasonics. Just find it mind-boggling that Panasonic would include the hardware but not allow use of it, seeing has how it'd just be a waste of money.