mobile

I've rooted my Motorola Droid Ultra (4.4.4, SU6-7) and I have GLTools 1.29. I want to install it, but I either get a 'library building failed' error or a reboot that does nothing to GLTools. I want to install it using the recovery instead, but wouldn't I need something like CWM or TWRP? I don't know how to install CWM or TWRP, but this article says that a custom recovery is needed for a Droid Ultra.

To get to the point, how do I install CWM or TWRP for my Droid Ultra so I can install the GLTools recovery zip that is named 'install_gltools.zip'?