Karbonn a1 and rooting
N721
Best and easy way to root permanently and temp is with z4root 1.3.0. Apk, download, load to the sd card and install and open from your mobile and it will install superuser. And you are rooted.
http://androidspin.com/2010/08/10/un...droid-devices/
Found an easy solution to this, with no problems! If you're the type of person that doesn't like dealing with drivers and other tasks of rooting, then this is the best way.. regardless of it not showing the device on (supported list) this worked.. and as far as post's go on this phone, they are far and few.. being karbonns, "first droid" and to the best of my knowledge, sold only in India. http://androidspin.com/2010/08/10/un...droid-devices/
No it is a zte n 721 and also micrmax a60 same roms 2.2.2 and 2.1
HERE IS DETAILS AND TOOL, N721 - ZTE Brasil
http://www.ztebrasil.com.br/products/mobile/detail/Portugal/Portugal_mobile/detail/201202/t20120218_284707.html
all details here for use of the same, better speed than the karbonn a1, some stuff removed.