Windows Phone 8.1 Update 2 rolling out for some BLU Win HD LTE owners

[Windows Central]

Some BLU Win HD LTE owners are reporting that their devices are currently receiving an update to Windows Phone 8.1 Update 2, also known as GDR2. The dual-SIM device originally launched last month, an LTE version of the BLU Win HD.
Update 2 has been slowly making its way out to phones, with on the Lumia 735 and 830 confirmed to be receiving the update as of early last month. Update 2 also shipped with the recently-launched Lumia 640 and Lumia 640 XL.

Full story from the WindowsCentral blog...