Having the same problem here. Hadn't used the drone in about 3 weeks. Prior to that it was working great. Took it out yesterday and no picture. Figured since my phone had recently been upgraded to 4.4, I should probably update all the firmware (this could have been a mistake with everything I've been reading). After updates, still nothing. Have now tried it using app 1.0.37, .38, .39, .40, and .50 with no luck on Samsung S3 4.4 as well as an Asus Tablet running Android 4.2.
Called DJI Support and talked to a super knowledgeable guy who affirmed it was a known issue that they're supposedly working on. He said he's had some luck (with his Vision2) doing the following (he said these aren't officially recognized, but they may help with a workaround):
* switching to airplane mode
* killing all background apps
* Lowering FPV resolution
'* in some cases, removing the SD card so less processing power going towards that.
Tried all of these and NOTHING working. Super frustrating.
If anyone else has had any luck getting theirs up and going, would love to hear how