T-Mobile made its customers who use unlocked iPhone 5s happy today by rolling out a new carrier update that gives their devices access to T-Mobile’s LTE network. Per TmoNews, the new update promises to improve battery life on unlocked iPhones while also delivering Visual Voicemail, a 4G network indicator, access to T-Mobile’s AWS LTE network band and access to HD Voice services. While LTE access for unlocked iPhone 5 customers is certainly welcome, they should know that T-Mobile’s LTE network is only live in seven markets right now, so they’ll still likely have to rely on the carrier’s HSPA+ services even after installing the new update.