I put in a USIM chip, but it says I didn't insert a USIM chip. Why is that?

A. 1

I think there was a defect in the part where you put the USIM chip.
That part is so weak that it's easy to break even if you touch it wrong.
Try getting the cell phone as

Gentleman 9 years ago 0

OK

A. 2

There are cases where there is something wrong with the USIM chip
More than that, the cell phone with the USIM chip is easily broken, so I think you should check the cell phone

Gentleman 9 years ago 0

OK