Было бы неплохо узнать на каком именно процессоре собран данный телефон, но просмотрев несколько описаний телефонов собранных на CoolSand есть большая вероятность того что функции блютуса включены в сам процессор...
Код:
mobile phone with Coolsand CT8533A chipset i3181
 
Platform	Coolsand CT8533A
Screen Type	1.8" display screen, 262K Color, 128*160,dynamic UI
Frequency	2Band 900/1800 MHz or 2Bands 850/1900
Sim Card	Dual sim cards dual standby 
Internal Memory	32MB+16MB
External Memory	T-Flash Card, 4GB MAX
With Perfume	Yes
JAVA links	Facebook,Twitter,Ebuddy,Yahoo…
Keypad	P+R
FM 	Yes
Bluetooth	Built-in RDA bluetooth
FM Radio	FM on Speaker
Camera	Back  camera 
Torch	One
Multimedia Format	MP3, MP4,RMVB,3GP, Recorder
GPRS/WAP/MMS	not support
Phone Book	100
SMS	50
Battery	700MAH, Compatible with Nokia BL-4C
Charger	DC Jack, Compatible with Nokia Charger
Speaker	F20*30Speaker
Multi-Languages	English, Arab,France,Spanish,Portuquese
Unit Dimension	115.2*50*13.3mm
Main function	FM, Bluetooth, MP3,MP4, AVI, Video recorder, Camera 
Included Functions	Alarm,Note,Stopwatch,Calender, Tasker,Calulator,
E-book,World Clock
Color for Selection	White,Black,Red,pink,blue,Purple,Green
Accessories:	Battery x 1, Charger x 1, Headset x 1 , User Manual x 1, USB Data Cable x 1
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