When do you change your USIM when you change your phone's



cell-phone change-of-air usim

I changed my cell phone.

I heard it will take about a day to open, so should I change the USIM in advance?

Or should I change it when I get a happy call?


484 2018-07-18 Gentleman

A. 1

If you can't get the signal from your old cell phone, you can change it


Gentleman 7 years ago 0

A. 2

If you see that there's no signal on my phone, you can take it out and put it in your new phone


Gentleman 7 years ago 0

A. 3

Thank you.


Gentleman 7 years ago 0


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