Mint Mobile and calling

Hardware Librem 5
1

After 3 years of a basically unusable (as a phone, since 2G went away) Librem 5 under AT&T, I switched to a short-term Mint plan a few days ago. My settings are exactly as above, and VoLTE is enabled with the BM818 tool. However, I cannot make or receive calls. When trying to make a call, the outgoing call screen pops up but the call is instantly ended. There’s no indication of any kind on the L5 of an incoming or missed call, and on the phone I call it from I hear no rings and get, after 3 seconds, a “Please record your message …”. Meanwhile, texting appears to work okay; I can create, receive, reply between both phones, and receive texts from Mint when experimenting. I pull the Mint SIM out and place into my other phone and it works perfectly, without any settings changes.

Any suggestions or ideas? I’m leaning towards a modem problem; what do you all think? How do I buy a replacement modem from Purism?

Thanks,

John

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You probably just need the modem firmware updated. Try contacting support to get that done.

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Everything you just described is exactly what I experienced as well. Believe it or not though, it eventually resolved itself. I never did anything to fix the issue. I pretty much stopped trying to make phone calls for a while and just used the SMS feature, etc. Then one day I tried a phone call on a lark and it worked. Now it works fine, assuming I’ve got decent cell coverage.

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Or, better, as a first step: Post the modem firmware version here and someone will tell you whether there is a later version. If there is then contact Purism Support. @tynerjohn

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Or, better, as a first step: Post the modem firmware version here and someone will tell you whether there is a later version. If there is then contact Purism Support.

M100E_YCSNO_1.0.0_210830

YCSN0_M100E_1ACD_B325_V1.0.0.1_20210907

M100E_1.0.4_200715

Sorry, didn’t know which, or if all, of these strings reported by bm818-tool to give.

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Yeah, it’s quite opaque. I don’t know how to interpret all that either. However I believe it’s the second line.

Refer Updating Firmware on the Librem 5 - #28 by FranklyFlawless

which says that you are not on the latest version. So you do need to contact Purism Support.

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E-mail sent to Support.

I’d assume the final sequence in each line is a date; seems sensible, anyway. Thanks,

John

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I would assume that too.

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No response from Support yet. Is that an unusual amount of time?

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Not unusual, except that you should have gotten some automated response. Also note that they don’t work over the weekend and it is still very early in the work day on the US west coast. (But it can take over a week to get response to email.)

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A support technician responded to you on the same day as your email, then followed up yesterday. It appears that you may not be receiving email from the Support service desk. I’ve pinged the support team to connect with you to help resolve your issue.

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No, nothing has been received, nor found in Junk. Likely just a typo somewhere. Thanks for the help, and I look forward to their contact.

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Not to flog a dead horse, but have you checked with Mint to make sure they will support VoLTE on the L5?

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I never asked them, but it works fine for me.

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