invalid sim card

[mengxiu]

hi, 

always show no sim card, my is phisical sim card. but so time show no sim card, i have to restart my phone, then it is ok.

but today i have to restart the phone 8 times, 

can anyone fix for me?

[BKNS27]

@mengxiu 

The SIM is not lined up with the reader on the Samsung phone. 
I tried to use superglue to fix the plastic SIM tray but only worked for a short time.

[mengxiu]

is regular plastic sim card, and the metallic sim tray with iphone, never have issue before, don't know why have issue this time

[BKNS27]

@mengxiu 

Is the SIM tray made from plastic? I have the same issue with my Samsung S9 with a plastic SIM tray. Order a new tray and no more issues. iPhones have a metallic SIM tray so no issues with my iPhone.

[hTideGnow]

HI @mengxiu 

this is usually a faulty phone issue, problem with the sim slot

if you have another phone, try to use that for a day or two to confirm it is not the sim card.  I don't want you to go out and buy a sim card only to find out it is a problem with the phone