Originally Posted by Virion90
I'm new to android phones. I wanted to connect my copy of the Nexus 4 to JBL On Stage IV, which I used with my old iPhone. Unfortunately, after using the micro-usb adapter my phone is charging but does not transmit music to speakers. I would add that I have system :Nexus 5 Experience ROM [4.4 KK] Rooted.
Can u help me ? Can i use my JBL On Stage whit my nexus 4 ?
The USB port on that device probably does not support MTP, so it can't directly pull music off of the storage. It also was released around 2010ish (Based on a quick Google), before Android got the capability to send audio over USB so it does not support the Android standard. It will not be able to output over USB. You're going to have to use a 3.5mm cable to connect it to the headphone jack on the Nexus to get any audio output.
PHONES: iPhone 3GS (Retired, Jailbroken, iDroid, overclocked to 800MHz) -> Motorola Atrix 4G (Shattered, CM10, Faux kernel @ 1.45 ghz overclocked) -> Google/LG Nexus 4 (Primary Phone, StayStock R3, Hells Doctor/TARDIS Mod R20 Kernel) + Motorola Atrix HD (Secondary Phone (For when the battery dies on the Nexus 4), CM11)
TABLETS: Sony Tablet S (Retired, rooted 4.0.3), Surface Pro 2 128GB (Current, W8.1)