X1C G12 / T14 G5 - RM520N-GL

[gjm-sc]

Should I be under the assumption that the RM520N-GL should be working in Linux at this point? The readme states that the device hasn't been implemented in the carrier networks yet but that was back in June 2024 or something. I just got a X1C G12 and also I'm testing on a T14 G5 with this modem in it and I'm getting a Network timeout error when trying to connect to a provider after installing the FCC fix from the lenovo drivers site (didn't try pulling the repo down from github yet).

I'm on Fedora 41.

[lxwulf]

Hey there @gjm-sc 👋,

According to the documentation here and here and as much as I understand, the Lenovo T14 Gen 5 and Lenovo X1 Carbon Gen 12 is supported, so you can install the driver probably without any issues. If not, report it here.

Keep in mind that you are out of luck with a USA SIM card.

[gjm-sc]

Hello,

Yeah, so for starters let's stick with the SIM subject. The note you pasted and I pasted below is back from June/July 2024. Aware of any updates to this, saying it was only supposed to take a "few months"?

Reason: Carrier certification for USA operator is not completed and it will take few months to enable WWAN for USA SIM.

[lxwulf]

At first, sorry I missed that text snipped! But as already mentioned, you're out of luck when you have a US operator. As there is mentioned for your specific card and device will be not any enablement be done as far as I understand. Your mentioned text is, I believe, meant for the Fibocom L860R+

Maybe @nitinexclusively does know more how to interpret the information. 😊

BTW: My 2nd link with the PDF is updated on August 2024 so its newer. 😉

[nitinexclusively]

@lxwulf Thanks for your comments !
@gjm-sc

. Aware of any updates to this, saying it was only supposed to take a "few months"?

Still situation is same i.e FCC unlock is currently blocked for USA SIM due to carrier certification . As of now , we don't have timeplan as there are some concerns over carrier certification ! Thanks