"Device does not have USIM" Error Resolution

pu1. It means that there is no USIM. If it's not USIM, it's because I'm not good at recognizing USIM
I think it's a broken USIM, but if you go to the agency, you can buy a new USIM, and you can change it with this

2017-11-24

OK

pu2. I think there's a problem with the USIM chip Or the connection between the USIM chip and the mobile phone might not be connected well
Take out the USIM chip and plug it in again

2017-11-24

OK

pu3. Whether the USIM is broken or the USIM plug is broken, it could be because the USIM chip and the phone are not connected well
The part where you insert the USIM chip is weak, so it breaks down easily...
Try another USIM and if it doesn't work, your phone is broken, so if you have time left, get an as
If you can't use another USIM card, you can change the USIM chip, so you can buy it for 8,000 to 9,000 won at the mobile phone store

2017-11-24

OK