Replicant

I tried to install Replicant 4.2 and with that installation Vodafone sim card worked for mobile and data, but Fastweb worked only with mobile no data.
I reinstalled Replicant 6 and with Vodafone both mobile and data work, with Fastweb neither data nor mobile work.

I also recognized this issue today on my i9100 phone because I had not received an important call. :\

Fil Bergamo wrote:

I have a Fastweb SIM card on my S2 with Replicant 4.2, and both data and mobile work.
If you have baseband signal for calling, then the lack of mobile data connection isn't related to the SIM card.
Most likely, you're missing a working APN configuration.
Please have a look around the internet, there are various tutorials on how to set the right APN parameters for a Fastweb SIM >card on Android. They should also work for Replicant 4.2.

Ciao Fil, yes it was indeed an APN configuration problem for Replicant 4.2 for fastweb is apn.fastweb.it Thanks for pointing me out in the right direction.

So what is the issue now? I cannot receive or do calls on my Replicant 6 with i9100 device.
Service incl. phone number is unavailable, although sim card is inserted.
How to repair / fix?

Do you need any logs?

Hello,

Just FYI. had a similar problem.

Installed Replicant 6.0 on a Galaxy S2 9100. Had the same problem with a Sunrise Sim Card - Pin Code was not
asked and I was not able to make any phone calls.

Used another Sim Card from Sunrise that belongs to a friend. No problems here, which left me
rather perplexed.

I then installed LOS and used my card, that was not working on Replicant. LOS prompted me for the Pin Code
and I was able to make phone calls.

I then re-installed Replicant - but unfortunately it gave me again the error with my card.

I am currently on LOS again, since I need a working phone for my business. I do not have any logs to show you.

This actually sounds like it's the same issue as #1783. #1809 looks like a general communication issue between the modem and the RIL and is probably not related. As long as it works with Replicant 4.2 and the RIL doesn't crash in the logs, it's #1783.

Fil Bergamo wrote:

I had a quick glance at the logs, and what I think is most relevant is a series of errors in response to RIL_REQUEST's
[...]
These errors appear in Replicant but not in LOS.
Though, those errors still appear, even when no SIM is inserted.. so I'm not sure they are related to the SIM itself.

Well, you always have these REQUEST_NOT_SUPPORTED errors with Samsung-RIL because it's incomplete (#1485). That's why LineageOS is using the proprietary RIL. It's unlikely that some new RIL request is now required for certain SIM cards and now needs to be implemented, but I won't disregard the possibility as I don't have studied the logs that extensively to be sure.

I even tried to remove PIN protection from SIM card: the situation slightly changed, as now the message is "No SIM card" but the name of the carrier is appended ("No SIM card - TIM"), so in some ways the process goes some steps further when the SIM has no PIN, at least up to recognizing the carrier.. just a suggestion..

Yes, the logs confirm that without the PIN, at least the carrier is identified.

Please test the RILs I posted for #1783 according to the instructions there and post results here.

There is something else. For the binary or transparent SIM IO requests, the record size in the request is too big. It looks like it's off by 30 for all of them. I'm wondering where the RIL gets the idea from to put this offset in the read request. Either the previous response request for the file attributes returns a false size value or something else makes the RIL add 30 to the size.