# SIM card pin issue for LTE v2 module

Source: https://forum.modalai.com/topic/783/sim-card-pin-issue-for-lte-v2-module
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: cellular
Posted: 2022-03-03 15:23:35 UTC by David Smyth
Replies: 3 · Views: 1124

## David Smyth · 2022-03-03 15:23:35 UTC

Not a question but posting here in case it helps anyone in future. Spent a reasonable amount of time trying to figure out why I couldn't connect to LTE. The following error kept occurring: 

Mar 03 14:53:57 apq8096 systemd[1]: Starting Modem Initialization...
Mar 03 14:53:59 apq8096 systemd[1]: Started Modem Initialization.
Mar 03 14:53:59 apq8096 voxl-modem-start.sh[4674]: VOXL detected...
Mar 03 14:53:59 apq8096 voxl-modem-start.sh[4674]: Initializing v2 modem...
Mar 03 14:53:59 apq8096 voxl-modem-start.sh[4674]: Waiting for ttyUSB2...
Mar 03 14:53:59 apq8096 voxl-modem-start.sh[4674]: ttyUSB2
Mar 03 14:54:00 apq8096 voxl-modem-start.sh[4674]: Initalizing cellular connection...
Mar 03 14:54:30 apq8096 voxl-modem-start.sh[4674]: "UIM uninitialized"

Turns out my SIM has a PIN which needed to be disable (can be done on your phone). Might save someone a bit of time.

## Reply by tom (ModalAI staff) · 2022-03-03 15:48:06 UTC

@David-Smyth Thank you for that info! I’m curious, what kind of SIM card / service are you using?

## Reply by David Smyth · 2022-03-03 15:49:54 UTC

I'm based in Ireland, the provider is called GoMo: https://gomo.ie/. PIN is enabled by default (details at https://gomo.ie/joining-getting-started-with-gomo/ under "Activate my SIM"). It's just a regular mobile phone SIM card

## Reply by Chad Sweet (ModalAI staff) · 2022-03-03 16:41:43 UTC

Thank you very much for sharing!