After releasing an official carrier update for iPhone customers, U.S. wireless operator T-Mobile has pulled all traces of the software from the web, leading to speculation that said update was posted prematurely.
T-Mobile Carrier Update Version 6.1 was reportedly released this weekend for all unlocked iPhone customers.
Available to all eligible iPhones using a T-Mobile SIM card, the update was said to enables Visual Voicemail, and a 4G status indicator.
Also planned for this update was Commercial Mobile Alert System (CMAS); AWS LTE (T-Mobile and officially unlocked AT&T iPhone 5 only); HD Voice (T-Mobile and officially unlocked AT&T iPhone 5 only); AWS HSPA+ (T-Mobile and new 2013 AT&T iPhone 5 only).
Additionally, the carrier update included new MMS Settings, Personal Hotspot settings (Smartphone Mobile Hotspot), APN settings for LTE connectivity, a new feature called “My Account bookmark,” and battery life improvements (as a result of network/device optimizations).
T-Mobile had posted the following prerequisites for its new update:
"T-Mobile iPhone or any officially unlocked GSM iPhone;
Latest iOS software version;
Device software is not jailbroken;
50% battery life or connected to a power source;
Data connection or a computer with iTunes and internet access;
Minimum of 1 MB available memory (File size of update is ~10 KB)."
However, as soon as the word was out that T-Mobile had officially released this carrier update, the operator quickly pulled the announcement (along with the release notes) from its forums.
It is unclear whether iPhone 5 customers are receiving the update OTA (over the air), but at this point T-Mobile is yet to clarify what happened. The consensus among mobile blogs and media outlets is that the update was posted prematurely.