MTK6572 3G

[GizBeat]

Are any of those UMTS modes selectable? It looks like the're all deselected. Try to tap UMTS 2000 and see if you can turn enable it.

yup
nothing in umts selectable, and i cannot make it enable, i tap it, but nothing happen

Okay. Yea, that's not good. Have you attempted to use different basebands or firmware yet? Either this phone doesn't have 3G/WCDMA/UMTS at all, or there's a problem with the firmware or baseband.

I know... You suggested that from the start, however it's a very rare situation for that to actually be the case. Have you contacted the seller to check if there's some firmware update available?

Have you checked in MTK Droid Tools (see general tools sub-forum) to see if the CPU is truly MTK6572?
I also wonder if this is an old MTK6572, or new MTK6572. There was an old MTK6572 that was single-core. A couple years old now.
What does the phone score on Antutu?
What's the LCD resolution?

Sorry for all the questions. I'm trying to determine if the seller sold you an old MTK6572 phone disguised as a new one.

Honestly, my first guess is the phone doesn't have UMTS/WCDMA at all, but I could be wrong. Let's hope it's a firmware/baseband issue.