[PeltFrelken]

How can I tell if the 620 will be 3G on T-Mobile in Los Angeles?

[Snowy Nokia]

I'm sorry to say, but the device does not support 3G/4G bands for T-Mobile USA.
I know it sucks.

[palandri]

There is some hope. T-Mobile is adding the 1900 frequency. which will allow the 620 to get 3G. I attached the lastest map I have of where they have added 1900. You can check with your local T-Mobile store to find out when it's coming to your area.

[Snowy Nokia]

I personally do not recommend it. My brother is using an iPhone in the bay area, its terrible.
Besides 3G/4G is meant to run on two bands simultaneously for call and data.

[palandri]

I personally do not recommend it. My brother is using an iPhone in the bay area, its terrible.
Besides 3G/4G is meant to run on two bands simultaneously for call and data.

We've had a couple of people post that it works great in their area and we've had a couple of people post that it's terrible in their area. In fact, one was a moderator here and he went back to AT&T like a day or two later.

[Alex Rodriguez]

Sightings of T-Mobile 3G/4G/HSPA+ coverage on 1900MHz (PCS/UMTS band II)

[PeltFrelken]

Thank you for your reply, most helpful.

[tai4de2]

T-Mobile 1900MHz works just fine as long as your area has been refarmed. I've been using a 920 on T-Mobile and getting 6-10Mbit speeds, for the past couple of months.