Crashed iPhone doesn't allow my simcard anymore.

[Scarredskar]

Ehm,
I have an iPhone 3gs and I got it on my birthday, which is on 14-11 in 2010. I had to jailbreak it, and the softwareversion is 4.1 I believe.
Well, everything worked fine 'till yesterday. My iPhone crashed and got in Safe Mode. I tried resetting, rebooting, restarting, I deleted recent installed Cydia apps and the last thing I tried was uninstalling Mobile Substrate and restarted my iPhone. I got out of Safe Mode and put back my Simcard. But my iPhone keeps telling that my Simcard is invalid.
I still have my Cydia apps and Cydia, but why the heck is my Simcard invalid? Can someone please help ):?

Lottaaaathanks

[z3r01]

are u unlocked? because it seems that maybe ultra snow need mobile substrate. so download ultrasnow again

i think

[i.Annie]

Probably want to put mobilesubstrate back on your phone while you're at it.

[Orby]

ultrasn0w depends on MobileSubstrate to function (dylib injection and all that, yo).

Reinstalling both is the best place to start.

[Studie]

after reinstalling them, make sure you reset network settings.

that should fix your issue.

[Scarredskar]

How do I reset my network settings? Sorry for asking this much questions xD

[skiptowncat]

How do I reset my network settings? Sorry for asking this much questions xD

Settings/general/reset/reset network settings

[Scarredskar]

Thanks, really really thanks to you all, it worked