Do I need to save the SHSH blob using the latest SeasOnPass?

My previously jailbroken ATV2 is not able to boot into the main menu. After the Apple logo, it went black and no signal.
If I re-jailbreak it again using the latest SeasOnPass, do I still need to backup the SHSH blob?
Thanks for any help.

no need to backup blobs first.

Thank you very much for your quick reply.
Cheers.