This is the official T-mobile LG L90 (Model LG-D415RD) User Guide in English provided from the manufacturer.
The LG L90 (Model LG-D415RD) coming to T-mobile USA features a 4.7-inch qHD IPS display of 540X960 resolution and runs on Android 4.4.2 kitkat OS.
T-mobile has not anounced the upcoming availablity and price of the LG L90 handset, But LG has published the LG L90 (LG D415) User Manual in Engish and made it ready for download.
T-mobile subsribers who are interested in this upcoming LG L90 (LG-D415RD) can grab the device owners manual from below links:
Download T-mobile LG L90 (LG-D415) User Manual