i have micromax a46 bolt having MTK 6572 Dual Core Processor...i had rooted it first...then i searched for its cwm but i could not get...however i wanted to modify it so i had installed link2sd and root explorer...i had successfully mounted ext2 and linux swap partition on it...i linked user apps...then i went to change bootanimation and shutanimation....so i did it with the help of root explorer...then i went to check the modified animations...and my phone got stuck into bootloop....i googled and XDAed and found that using SP flash tool i can re-install the stock rom so followed all the instructions about using sp flash tool step by step but when i tried to connect my phone with pc through data cable, there is no response from pc as well as SP flash tool...note that i had installed micromax a46 drivers but though this problem is existed.............