as is other thread these Technics are mentioned ....
FOR ROOTING LG L7 JELLYBEAN ROM just try the Framaroot-1.4.1 this technic works well
as Framaroot is not developed by me ,iam just sharing the info to you...
IT WILL WORK
FOR INSTALLING CWM TRY THE SCRIP MADE BY SOME DEVELOPER AS I DONT REMEMBER HIS NAME...
ITS ALSO WORKING,,,,U DONT NEED TO DOWNGRADE OR INSTALL ROOTED ROM
ATTACHMENT GIVEN below
cwm and framaroot
FOR CWM FOLLOW THIS LINK http://forum.xda-developers.com/show...5#post45314305