I think that I understand that the cards can not be 3G at the same time, so do I have to make the card I am going to use in a 3G ? or what ?
1785980
Hi! Well, both cards can't be on 3G, only one. But you can chose and change them at any time. It's a really good phone. Fully recomended if you need a cheap dual sim phone. :).
655478
You can.just buy the one with 3G capability so that in case you don't have wifi you can buy credit and use it.
356376
Don't know if u want to buy mine let me know it's time for me to up grade to 3gbs anyway but it's a great card
386107
I think you are mistaken as I didn't write anything about 3G or 4G. Actually I can say that I still haven't used mobile data, only wifi, so unfortunately can't answer your question, sorry
2069046
I've used a 32 Gb card with no problems. I see no reason why it can't use cards with more memory than that.
1697793
I don't have an Extreme 3 CF card to try. I have a 8GB Extreme card that works just fine with it.
1665539
Anybody having trouble using 3G data with AT&T;? My 5800 is showing excellent 3.5G signal but when I try using data it just gives me an error message. It works fine if I keep the phone in GSM-mode though...EDIT: An extremely stupid design choice in AT&T;'s SIM card structure. Even though I had a 3G capable sim card, it wasn't 3G-enabled so couldn't use the data (but oddly enough could use the bandwidth to talk to people. If anyone else has this problem, just go talk to someone at AT&T.;
1732473
friend,it is support 3G wcdma ,and normal card is support .but what is your brand card need tell us to confirm .
574656
depending on where you live. some states dont have 3g tmobile yet... so you just need to check.
997091
This unit is not 3g. You can only put in a micro card for additional storage. Works ok for a basic tablet.
1814004
So the 4G Transcend card works - that looks like a SDHC card (based on the web site). Your post says it does not suppport SDHC - have I got the wrong card?
172887
Yes. I have had this phone for 2 days, and I have 2 TM cards running 2G fine. Note however the 3G frequencies on the phone (850+1900) do not match those required by TM (1700+2100) in my area, so the 3G does not work with TM cards.
94593
Every phone I put this card in has worked but you have to format it everytime. You can't swap it between phones. Once its formatted for that phone load it up and go.
1273696
Hello Emon...I'm not sure. I'm using a slightly smaller card. You will not be disappointed by the unit in any way!!!
1296463
I believe so but I would try to get the extreme one that's is going to be fast. Also make sure you reformat the card in the contour before use so it works properly.
772893
I'm honestly not sure, however, I do know that 3 cards can fit..... hope this helps
1716756
I am almost positive that you will be able to use that SIM card. I was told that any At&T; card can work in any At&T; phone. However, if the one phone is not 3g, then you will have some limitations. Since you are going from 3g to 3g, you should be ok. I was ok when I switched over to this phone. I had an intermediate phone that was AT&T; that was not 3g, i could not make international phone calls. So, I got this Pantech and am getting international phone call capability.