Nexus 4 fail

[CaptainMcCrank]

I have not been able to power the hackrf off of a nexus 4. I have a G2G cable, fwiw.

I'm not sure that there's anything for you guys to do, but I wanted to make sure you were aware. If someone is successful in powering the hackrf on a nexus 4. I'd love to see it.

[demantz]

hmm I think so far nobody reported the app to work specifically with the Nexus 4. I thought I heard that the Nexus 4 doesn't have OTG support, but that might be wrong / outdated.

Can you give us more details? Are the LEDs of the Hackrf off or on? (which ones?)

A better (shorter) OTG and USB cable might help with power problems!

[CaptainMcCrank]

LEDS are off. My OTG cable is pretty short- about 6.5 inches. I've tried OTG cables from two different vendors.

[demantz]

OK I did some research and there are two problems:

• The Nexus 4 doesn't output enough power. You need a Y-OTG cable or a powered USB hub!
• The Nexus 4 doesn't support OTG with the stock kernel. You need to flash a custom ROM with a modified kernel. Here is a howto: http://forum.xda-developers.com/nexus-4/general/manual-usb-otg-t2151159/post38076758#post38076758

Seems like it is possible, but needs a lot of work :(

[CaptainMcCrank]

Oof. I really want something portable. Anyone had any success w/ the nexus 9?

[demantz]

Unfortunately, the Nexus 9 has problems, too. It's something different though and it might be solved in the future... demantz/hackrf_android#2 (comment)