can rogers g1 change the UMTS dual-band (850/1900 MHZ) to band (2100 MHZ) ?

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can rogers g1 change the UMTS dual-band (850/1900 MHZ) to band (2100 MHZ) ?
my phone is rogers g1。
But our 3g band is 2100 MHZ.
I found a hidden setting can change the gsm/UMTS band。
when u dial *#*#4636#*#* >choose 1 >menu> radio band
there is Europe band/USA band/japan band /Australia band
I try all band but it does‘t work。
I can't use 3g。
Is anyone can help？

A software setting can NOT change the physical hardware on the device.

thx...is there another way ....?

Sure. Get out your soldering iron.
If I need to give you more details than this, then you aren't qualified -- sorry.

The easiest thing for you would be to find someone to trade phones with. You should probably focus on people using tmobile branded devices on ATT in the US. Your phone is compatible with ATT's 3G band, the tmobile branded device is what you're looking for and is NOT compatible with ATT's 3G band -- EDGE only there.

thx again ！
I want to see more details。。Would u tell me please?
I can use the electric iron or find someone who can repair the BGA.

Trust me when I say this:
If you need more details, then you REALLY DON'T want to be doing it!

Thank you for your kind advice but I really want to know。。。

trade

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anyone willing to trade a t-mobile g1 for a black htc dream rogers branded?