[Q] Can't detect Data Sim or use 3G

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Got myself this data only subscription, got a micro sim. Made an adapter for it, had a little trouble inserting... But still.
Didn't ask for pin codes.
When i insert it it sees it, it restarts, says no signal, and then i get a message "insert sim card" after a few seconds...
Called the handler, told me to get a usim
Got a usim
Didn't ask for pin codes, and the same problem.
Used another phone and removed the pin code, still didn't help.
It is able to read and use 3 different sim cards, from 3 different handlers, which is regular, not data only. (I get an "H" up and internet works, but no 3G. Whatever H stands for it's way fast.)
Got a new sim, didn't work.
Tested it on another Gtab and it worked.

Is it possible that messing with the sim slot while trying to insert the mico sim could cause the problem in some way? Phones are not my thing.

And i was wondering is this original firmware settings? (Bought it off someone else)
pda: jme
phone: jma
csc: jme

I tried to change the firmware, which i suppose was stupid of me, it crashed during the flashing. Got it up running again, but at least the Phone part did not change.


So the question really is, why this is happening.

H = 3g data

Read up on that and yeah, it's "3.5G" but it still won't register the data only sim card.

If this is a GSM tab. Unlock it first.

Flash it with Roto's JMI v2 Rom and include a modem.bin file.

search the developers forum for Roto's unlock thread. Follow those instructions and you can't go wrong.