A mi no me guardo los SHSH de la 5.0.1 de ningun dispositivo al que le pase TU...
Segun entiendo lo que dice en la pagina oficial, el 5.0.1 es guardado solo para 4S
Even though there is still no working solution for restoring 5.x on iPhone 4S I have released a 5.01.00 so you can at least save 5.0.1 SHSH. I have added tentative support for at least saving 5.0.1 SHSHs for iPhone 4S but as of now we are unable to use them fully.
As soon as more information is available I will update.