upgrade JB 4.0.1 to newer JB

[b0gd4n]

I managed to succesfully (at least I think it is) install 6.0.1 and cydia.

But now I am having problem with ultrasn0w. I only get 1 bar signal, but it always goes away.
When I have 1 bar signal, it then goes to no signal, then searches and the back to 1 bar signal. It does this in 20-30 seconds intervals... continuously.

I tried 2 different ways, both with the same result:

1. I first installed the ultrasn0w thing, then the fix...
2. the other way: the fix first then ultrasn0w.

I am thinking of downgrading to 6.0.

Is that possible?

 

[b0gd4n]

it seems that it is not possible because "there are no remote blobs". In cydia it shows me shsh: 5.0.1 and 6.0.1.

Does that mean that I can only install those 2 version of the os?

 

[b0gd4n]

ok...installed 5.0.1, then jailbreaked.

And after installing ultrasnow (had to remove than add repo666.ultrasn0w.com because it was not showin ultrasn0w in it) it stood for about 5 mins in searching mode.
I restarted, and waited again for about 5 mins, FINALLY full signal. Weee!!

I think I will stick to this one, as I don't have to reboot the device with redsnow each time...and more importantly, I have full signal!!!

Thank you all for the assistance!