How to connect both sim card at the same time on Dual Xperia 3+

[MoreYummy]

I just bought another sim from different company.

When i choose data to WCDMA for each invidiually, each of them works.

However only one has signal bar?

The only way I can make each one works is choose WCDMA, then the other sim wont have signal at all.

Any idea what is happening?

[_alexdon_]

You can only have GSM only on the second SIM as the phone is dual standby.

[MoreYummy]

Yea, I just figured it out after i posted it.

When I bought it I thought it will have both sim card with all frequency, so it can have connected to WCDMA at the same time.

Wondering is there any phone can support dual sim card WCDMA standby at the same time?

[_alexdon_]

Yeah, there should be. Sony doesn't have dual actives as far as I know.

[Redbj40]

I've had a Sony dual sim phone (D6633)for a number of years and it was only 2 days ago that I started having some card issues. Previously both cards would run on wdcma and Lt (depending on signal) but now I only get to use 1. The phone has been fantastic but the latest version of software has stuffed it. The whole purpose was because I needed two sims for business and dual sim phone was the answer.
Not Happy Sony.... Wake up dual sim phone = 2 phones in 1 with same features.

[MoreYummy]

Redbj40 :

It was dual wcdma ( 3G ) at the same time? 

Or is it only one 3G, second one is GSM?