GALAXY S2, GT-I9100

[r_roy]

Heyy guys,
i rooted my phone (SAMSUNG GALAXY S2, GT-I9100) from ICS to Lollipop 5.0.2, but now my phone is not connecting to any of the kies version.
Can u help me out to get out from it or how can i get back to again ORIGINAL ICS..

Waiting for ur prompt replies
Thnx..

 

[Slug]

Kies will not correctly recognise a device with non-standard firmware.

To return to an official firmware you'll need to flash an appropriate file using Odin; there's a link to a repository of official firmwares in the S2 (International) All Things Root Guide.