Default :( Help

Friends, Currently i am on Mike's latest KK ROM (device model xperia mini pro sk17i).But i have to go back to any stock ROM.Because my Device is not being detected by any PC (Only Charging occurs and is not a driver problem).Is there any way that i can go back to STock Rom.I mean can i flash stock rom without flash tool.My device's current kernel is also based on KK ..