In sci.electronics.repair, on Wed, 22 Feb 2017 07:14:05 +1100, Clifford
Heath wrote:

On 22/02/17 11:03, wrote:
I had a BLU DASH JR with H2O and Redpocket (both ATT resellers with $100/yr
plans) until ATT dropped 2G. So I got a BLU R1 HD and only H2O worked when I
got it on Saturday. I called redpocket and they said to call Tuesday.
Today they got it to work. THen I realised H2O stopped working.
But they BOTH worked on the DASH JR. CLues?

Most "Dual SIM" phones are like that. The 2nd SIM only works on 2G,
only one SIM can connect to a modern network.

More things I should have known in advance**.

So if one SIM is removed, will the other do 3G, regardless of which SIM
is left in?

Or does it have to be in slot #1? I ask because I too have a Blu phone
(Studio X Plus) with 2 sim slots and so I though tI was being clever to
get micro the second time so that both could be in the phone at one
time. So if "slot 1" is important, Ican't move the SIM anyhow.

(I just got the second SIM in the mail today, but I can't use it until
mhy trip starts in 2 weeks.)

**Actually today is far better to learn this than after my trip. It's
not in advance of buying the phone but it's in advance of using this
part.