after 6 months my 3g says no sim

[johnler]

Hi guy please be gentle with me, I am new and not the best with things like this

well here gos
I jailbroke and unlocked my 3g and all went well, but after about 6 months or so, my phone is now saying no sim,, can any one help me, I am running 3.1.2 firm, I haven't gone to the new 3.1.3 as I thought this may cause problems,

I don't no how to get the blackra1n app showing back on my phone to try and load the sn0w app to try and unlock my phone to all networks once again,

the unlock is the main thing I need
any help please, thanks

 

[johnler]

come guys someone must no what I can do, cheers

 

[LVCIFER]

If you have Cydia installed, go to "Manage", click the "Edit" button, then tap the "Add" button. When it asks you for a URL, type in "http://blackrain.com". Add it, and look for "sn0w/blacksn0w" and install it from Cydia.

It should give you confirmation messages if everything installs correctly.

You were specifically using blacksn0w before your SIM started bugging out, right?