Omnivision

Software: OVC3860 RevD Config Tool.

From either https://github.com/tomaskovacik/hw/blob/master/kicad/library/datasheet/OVC3860_revd_config_tool.exe or http://www.52bluetooth.com/plugin.php?id=attachcenter:page&aid=970.

Grab datasheets, use google.

Or

get help right here: http://kovo-blog.blogspot.de/2016/01/ovc3860-how-to-change-name.html

or here

https://github.com/tomaskovacik/hw/issues/1

 or OVC 3960: forum.cxem.net/applications/core/interface/file/attachment.php?id=427864

 http://rohitg.in/2015/05/29/TruPlay/

Beken

chipset: beken bk3254ss28k 

 Distributor homepage http://www.bekencorp.com/en/Botong.Asp?Parent_id=2&Class_id=8&Id=73

Tools:  Grab flashtool for BEKEN right here: http://www30.zippyshare.com/v/m8NFJS1j/file.html

BK3254_ToolKit2.6.exe.7z (235 K)

BK3254_JTAG.7z (73 K)

BK3254_datasheetv0.3.pdf (383 K)

BK3254_usb_bulk.rar (19 K)

http://bbs.mydigit.cn/read.php?tid=2028600

Ground Loop Noise:

https://www.eevblog.com/forum/beginners/bluetooth-module-noise-issue/