MHC-V77DW problems

[Dovilea]

Hello. 

1. Why l can't register my MHC-V77DW system. (only can find MHC-V7D than searching for product)

2. Why samsung galaxy tab2 can't find MHC-V77DW via bluettooth. ( with galaxy s4, s6 and s7 everything works good)

3. Can l connect laptop to MHC-V77DW sistem via bluettooth or wifi. (my laptop cant fint sistem via bluettooth)

Sorry for mistakes.(Not very good in english)

Please help me.