I have been trying to establish an interconnection, via either USB or Bluetooth, between my Samsung cellphone (Android 4.2) and my MacBook Pro (mid-2012 - OS 10.9.5). I have researched the possible methods, and have tried both USB and Bluetooth methods, each without success. For the USB approach, my USB cable interconnection is not detected by my MacBook Pro (the blue indicator on my SIIG USB 3.0 Port Hub does not light up). For the Bluetooth approach, even with both devices successfully paired one with the other, the MacBook Pro response to "connect to network" is to initially show "connected", but then almost immediately display "Network not available". I am currently working via Wi-Fi in the Portofino Bay Hotel, with the interconnection showing "connected". Please advise what may have to be done to correct theses apparent failures, such that at least one method will permit me to transfer photos from my Samsung cellphone to my MacBook Pro (for easier sending attachments to my emails - I acknowledge that i could send the attachments directly from my cellphone, but the keying process is "kludgy").