How do i boot a tethered iPhone when i don't know what was used to jailbreak?

hmfc-1874

Contributor
Silver
Sep 10, 2011
510
34
28
#1
i was needing to get my iPhone fixed (restored), it was complicated. i took to a shop and he used to do the teatheard jailbreak?

so how do i boot it tethered?

cheers