The modem does not recognize Korean SIM cards (what?)
#1
I am exploring my newly purchased PinePhone, and I have encountered what looks like quite a big problem for me. I live in Korea, and when I insert a Korean SIM card into the phone, the phone says that the SIM card slot is empty. (Precisely: home screen -> up arrow (all apps) -> settings -> cellular network -> there it says that the SIM slot is empty.)

With any of the other SIM cards I have (I have them from several countries and from different carriers, both expired and working, more than 10 in total), it always says "SIM 0", like the SIM card is there. And when I insert any of the two Korean SIM cards I have (one expired and one working), it says that the SIM slot is empty.

I want to underline that I am not talking about network registration/rejection of my SIM card, I am talking about the modem "locally" reporting the presence of a SIM card, before any network registration. All other phones I have say that the SIM card is there when I insert it, but with the PinePhone I have this issue. I've tried to boot the PinePhone from a microSD card, the same result: sees foreign cards, does not see Korean ones.

I don't know what happens on a deeper level, I don't know if it is actually a hardware issue or a software one, but on the GUI level it looks like this. And this makes the phone almost unusable for me.
  Reply


Messages In This Thread
The modem does not recognize Korean SIM cards (what?) - by bdicewk - 06-04-2022, 07:32 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Modem Issues with the Pinephone Temmie19 5 1,824 07-02-2025, 12:50 PM
Last Post: biketool
  FOSS fw problem - PinePhonePro, EG25 modem dukla2000 5 1,728 02-05-2025, 02:30 AM
Last Post: biketool
  Jumpdrive boots Computer(s) don't recognize PinPhone sfb 0 703 10-11-2024, 05:47 AM
Last Post: sfb
  Supported Carrier and Modem Bands NachoMomma 4 3,818 03-23-2024, 02:00 PM
Last Post: Kevin Kofler
  power circuit can't charge battery and can't supply enough power for modem or wifi vortex 2 2,308 02-17-2024, 04:15 PM
Last Post: vortex
Bug PinePhone modem keeps "disappearing" Kevin Kofler 14 12,461 03-22-2023, 05:28 PM
Last Post: Kevin Kofler
  modem not working michelinux 0 1,639 02-16-2023, 04:56 AM
Last Post: michelinux
  modem not detected al_x 3 6,391 02-15-2023, 11:17 AM
Last Post: fxc
  firmware udate Quectel EG25-G modem alwi 7 9,741 07-06-2022, 01:43 PM
Last Post: user641
  Need command to tell what modem firmware I am on. purpletiger 4 5,266 07-06-2022, 12:35 PM
Last Post: Zebulon Walton

Forum Jump:


Users browsing this thread: 1 Guest(s)