[germainebull]

Of late, I've been occasionally receiving the following alert message when using my laptop: 'SIM/USIM has not been detected or is invalid'. I'm at a loss as to the cause of this because these messages are appearing when my USB stick is attached to my computer.

Can you help me diagnose this issue?

[germainebull]

Alas!

Don't we have users of modem sticks here?

Or, are there no knowledgeable people?

Come one friends! I want to resolve this problem that is bugging me occasionally. I need your kind advice.