T
T
Tom Nolane2019-03-17 12:12:31
Megaphone
Tom Nolane, 2019-03-17 12:12:31

Why are SIM cards not supported in the LTE Sierra EM7345 modem?

Good day toasters and toasters!
The main question: the SIM card (tele2, beeline, megaphone, mts) does not want to work in the LTE modem Sierra 7345
5c8e0dcb72377777808224.png
Water information: I bought this modem on Ali, which has official support for my laptop model (Lenovo Thinkpad). Correctly installed, the drivers also got up as they should. I used the laptop manufacturer's forum to resolve my issue: I re-flashed the modem through the official utility:
5c8e0eb507191917709526.png
everything is ok. But SIM categorically does not want to work (no service). I spent several days on various ways to solve this problem: I read foreign forums, tried different firmware versions (coincidentally, I even reinstalled win after that), but did not solve the issue.
I tried different SIM cards (of different operators) - it's the same everywhere, while the SIM cards themselves are valid and work perfectly both in the smartphone and in my SIM-fi-wi router
5c8e113ee3ab3551829439.png
when "diagnosing" the connection, it shows the following inscription:

the mobile broadband device is locked with sim pin2. Contact your mobile operator for assistance with unlocking the device

5c8e11f91f22f260139090.png

Answer the question

In order to leave comments, you need to log in

3 answer(s)
T
Tom Nolane, 2019-04-10
@tomnolane

The solution turned out to be very banal: if you look at photos of similar modems, you can see two "mounts" a la like a Wi-Fi module, for connecting two antennas (I have them: orange and blue). I disassembled my laptop, and really saw two antennas that are not connected anywhere (and are sheathed). Once connected - everything worked!
PS and afterword: NEVER insert a SIM card adapter into a SIM port without a SIM ....

D
Dimonchik, 2019-03-17
@dimonchik2013

and there is nowhere to enter this PIN2?

B
BasiC2k, 2019-03-18
@BasiC2k

It is possible to block the modem for only one operator (you need to re-read the description of the lot). There are situations when the number of attempts to enter the unlock code ends and the modem is completely locked.
You should also check the technical characteristics of the modem - whether the frequencies of the RF operators are suitable for it.

Didn't find what you were looking for?

Ask your question

Ask a Question

731 491 924 answers to any question