[pattyandchips]

I know there are quite a few posts about this so sorry for starting another on but it’s got ten times worse for me. I’m running a HTC 8x Black on O2.

Before when I got the sim error I just had to restart the phone and it would work fine. However in the last week restarting the phone does not make a difference.

You have to restart it about 5 times and then a message will appear saying the phone has changed to GSM network and work normal. It doesn’t matter what you do in these 5 reboots clean the slot etc. it just will not work.

I’ve had the phone about 2 months and it is happening maybe twice a week. I’m a bit lost as to what I should do??

[Blair McGregor]

I had this also, happening once a day. Found reseating the sim card and blowing in the slot incase of dust etc solved this. Never happened since.

[moegumby]

Go have the SIM replaced. Some older 4g sims don't play nice with newer phones. I had mine replaced on Verizon and no more problems. Ask for a new SIM, not one that's been in stock for a year.
Sent from my HTC6990LVW using Board Express

[64GUNSHIP]

When I got my 8X it had a camera issue so I sent it for warranty after a month of owning... When it came back, the camera was fixed but I couldn't get service anymore and had the same message every time I put a SIM card in. I figured it had something to do with the antenna cables not being reconnected or something. I sent it back again and it's supposed to be here and fixed on Tuesday... I'll update you on the situation and tell you what they fixed.

[pattyandchips]

Thanks for the responses.
It was a new sim card when I got the phone because I had to swap from a normal sim to a micro sim.