Earlier today Google flipped a switch enabling the screen casting feature it unveiled at Google I/O. If you have one of the supported devices, you don't have to do a thing to try it out. Just fire up Quick Settings and hit the screen cast icon. But if this isn't discoverable enough, Google has also updated the Chromecast app to bring more attention to the feature.

What's New

A Cast Screen option is now available in the navigation sidebar. Clicking it will provide a brief explanation of the feature and walk you through setting it up.

Cast1 Cast2

The app also displays which Chromecasts are available in your home to cast to and which device is currently casting to what.

Cast3 Cast4 Cast5

Everything needed to run Backdrop is included in this APK. There are several thousand lines of code, layouts, strings, images - the whole shebang. All we need is for Google to turn on another one of its switches for us to check it out. Right now none of the functionality is actually available.


The APK is signed by Google and upgrades your existing app. The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way. Rather than wait for Google to push this download to your devices, which can take days, download and install it just like any other APK.

File name: 


Version: 1.7

MD5: 50b469fe8570303b3c49d97e08d47bd8

Thanks, +MarcoPedrazzoli

Bertel King, Jr.
Born and raised in the rural South, Bertel knows what it's like to live without 4G LTE - or 3G, for that matter. The only things he likes sweeter than his tea are his gadgets, and while few objects burn more than a metal phone on a summer day, he prefers them that way anyway.

  • http://about.me/tysonayoung Tyson Young
  • challenge_accepted

    Working great on nexus 5. Am able to cast chrome without lag and games work too but obviously delayed. Video works too through TV speakers

  • remister

    Spotify just got ChromeCast'd without their approval. MWHAHAHAHA

    • Dfigs23

      SoundCloud too

      • C64

        Was already possible with bubbleupnp

        • mad

          Or "My Cloud Player"

      • Lars Jeppesen

        Sonos already has SoundCloud support in it's beta app

    • Francois Roy

      TuneIn as well.. Major DRM leak

      • Just_Some_Nobody

        Let's just keep that among friends...

        • http://www.gameosaur.com/ neoKushan

          How is this a "DRM leak"?

          • Gregory

            It's a DRM leak in the same way as a headphone jack. You can bypass absolutely any DRM using just a jack-jack cable and other device with line-in. MWAHAHA

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            Except digital, bit for bit ?

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    • whendowelive

      I can't get audio to stream on mine

      • Ruben van Kruistum

        Me neither. Can't really figure out what the problem is.

        • whendowelive

          Rebooting the Chromecast fixed it for me.

          • Ruben van Kruistum

            Can't believe I didn't think of that! And I work in friggin' IT as well... Brainfart.

          • Ruben van Kruistum

            Bit disappointed that the audio quality is too low for music purposes. Fine for everything else though.

          • Lars Jeppesen

            I've plugged my ChromeCast into my amplifier, works much better because you can output the sound to your stereo, and the video to your tv.

          • Nicky

            I tried it with my Chromecast that's connected to my amplifier and I got no sound, but when I screen cast to my bedroom (Chromecast connected to TV) it works fine! Don't know what the problem is...

    • mannenmytenlegenden

      TouchWiz on my TV. Hurray! :) :(

      • Walt

        That was super!

    • numpty

      Sadly 4OD didn't ... it still blocks streaming regardless, same as their iOS apps do.

    • Henrik Jernstedt

      So, did you get the sound to Cast as well? My Spotify was really, really silent :(

      • remister

        It wasn't bad for me. My TV volume was set to level 25. But I was able to control the volume with my N7 2014 and HTC One M7

  • Nathan Walters

    "No compatible Google Cast devices were found on your network." Does the Chromecast requite a software update before this can work?

    • Mental_Moose

      Many people have had problems finding their Chromecast at all when trying to cast the screen, me included.
      At least some of us solved it by simply restarting the Chromecast.

      • Nathan Walters

        Yeah, I just power-cycled the device and it works perfectly now! This is very impressive.

    • ilyas

      I have the same?!?! Anyoke knows how to resolve that?

  • mgamerz

    Wonder what kind of battery penalty this includes.

    • EowynCarter

      Lots ! Wifi + screen on.

  • Eduardo Mateos


    If I have the CCast connected to my Onkyo receiver, there is no sound. But if I plug it directly to the TV, sound comes through.

    Strangely, if I connect the CCast to the Onkyo and cast from Youtube or whatever, the sound comes perfectly.

    Am I the only one?

    • ChrisNacca

      Works fine on my receiver

    • TonyHoyleUK

      Works fine on mine.

  • Alex James Simon

    Not working on the Galaxy S5, extremely laggy, and disconnects shortly after it connects.

  • http://www.westagemusic.com/ Marc

    Is there any chromecast reciever for Chrome? Would love to try it out...

  • Jason

    and I'm just sitting at work like..

  • Marvin R.

    Does anybody know if the new cast android app also enables mirror casting for normally not supported devices (mostly non nexus) ? Anyone tried out e.g. with Samsung or LG tablet?

    • Kevin

      It works well on my Nexus 10.

  • Shawn Maynard

    Auto sounds is horrible on nexus 5 :-(

  • Rovex

    Predictably SkyGo has already been patched to detect this and kill the feed. I really HATE you sometime Sky, you must be the most paranoid company on earth.

    • TonyHoyleUK

      Funny how if there's a new android version they remain incompatible for weeks (often with no cause due to a .1 version bump).. something like this and they can have an update out in minutes.

    • numpty

      4OD also. Channel 4 have always claimed their current agreements with production companies and other networks don't support streaming their content to other devices. But a blanket ban seems OTT, and I can't believe some of the newer deals they've negotiated don't allow it, or that their own in-house productions don't allow it.


    Working great on my note 3. Didnt at first but i just restarted the app and its fine now. This is big. They were already winning with thus app but now its a blow out!!

  • http://google.com/+DavidJohnson David J

    I was able to do this Koush Mirror app. So how can I tell which is the Google version and which is koush? I can't tell

    • Cory S

      One works. The other...doesn't.

  • Tony

    Can anyone elaborate on what the "tips to optimize your Wi-Fi connection" are?

    • Chris

      - Turn off porn / torrents while casting

      I believe that's the extend of helpful hints.

      • Gandalf_Teh_Gray

        If we had Google Fiber it wouldn't be an issue :P

  • mqmoon

    Updated to the latest app version, but no casting option in the Chromecast app for my Moto X :(

    • Greg Kobey

      Same here with a vzw lg g2

      • Clyde Jones

        Same with my S4 (on Cm11)

        • Itchy_Robot

          Same with Sprint Galaxy S3

          • yogi

            Same with Note 3.

          • Fred

            Same with Nexus7 (2012)!

    • Gene

      same with a galaxy s5 active. kinda strange since the s5 is supposed to be supported

  • Ali

    the cast feature did show on this app for samsung s4, but not samsung s3.

    • gwhizkids

      On my S3, I got a dialog saying I could cast my screen, but the menu doesn't have the option. I expected as much. Hoping they get this rolled out to more devices soon.

  • Ghisy

    Doesn't work for me, I keep getting an FC on Google Play Services... :/ (Nexus 5, 4.4.2, latest Chromecast update)

    • Kevin Aaronson

      Same here on a galaxy s5

    • Josh

      Try updating your Nexus 5 to 4.4.4 and you might see it working for you.

      • Ghisy

        Yeah, yeah, I know I gotta update it at some point. I just hate the new dialer (all this white, grrrr!). This is why I've been waiting to update...

        • Thomas’

          Hey, screw these important security updates - I want my white dialer!

  • Alexander Rodriguez

    S5 Working fine, Minimally lag...

  • Addic7ed

    Doesn't work on nexus 4

    • Matt Jones

      It does go to settings/display/cast screen

      • Addic7ed

        Working fine finaly, just restart my phone and my tv ;)
        Nexus 4 updated 4.4.4

      • Rama Raju Vegesna

        I tried but its giving mesg saying "no nearby device were found"

  • bsinc1962

    I wonder if this will work with my Slingbox.

    • danskeman

      works very well with my slingbox solo, and samsung notepad 10.1 2014 edition. Minor issue - you cannot do anything else in meantime with tablet/phone in meantime Not sure what would happen if you were using a phone and got a call (can't test as I don't have a suitable phone). I suspect it would stop mirror casting - probably better to use a tablet if possible?

  • http://maleko.co.uk Maleko

    Working well on the wifes S4, but no sound. Really hope it comes to other phones or someone works out a way to bypass restriction :P

  • http://www.gameosaur.com/ neoKushan

    It's not giving me the option on my Galaxy Note 3 (running CM)

  • Rob H.

    Works on my N5 without the Chromecast app. Works pretty well too.

  • mgamerz

    Works for me. Using it as I type this. There is some lag. About 20ms when doing normal stuff. Games are about 1s behind. It routes audio to the TV instead of the phone speaker.

  • rhydin

    For those who have this working successfully (I installed the APK posted in this article, but still no dice on my GS4), what is your Chromecast firmware version reflecting? Mine shows 17250, but doesn't give me the option to mirror.

    • Tarun Pemmaraju

      Working for me on 17250 from a Nexus 5

      • rhydin

        Running cyanogenmod on 4.4.2, could that be why?

        • Tarun Pemmaraju

          I don't think so. I just checked my old S4 and it isn't working for me either and I'm running TouchWiz.

    • HarpAttack

      Reboot your dongle from within chromecast app.

  • JKrunnings

    Screen casting is working fine on my N5, but not able to get sound working with it...

    • AGoodM8

      The solution is to disconnect and reconnect. It's happened with me sometimes

  • Allen D

    Random question did any manage to get this working on a M8? I know its not the 'approved' device but I have the downloaded apk and the updated Google Play Services. And I don't see anything on the Chromecast app at all.

    • Lee

      No, the cast screen is not in the menu on the M8.

  • TDN

    Thank you very much, going to try it out tonight.

  • Lee

    Hahaha the Chromecast app can't find my device, but I'm playing videos through youtube on my Nexus 7 2013, and casting my Chrome tab from Windows 7. What's up with that?

    • Lee

      Reboot of Nexus 7 solved the problem.

  • psqueeb

    I like goole,worald largases goole ,

  • Kyli Rouge

    Not working on my rooted CM11 S III

  • rgeiken

    I am casting from my Note 2 smart phone to my 71" HDTV, and the video and audio are perfect. Can also cast from my Samsung Note 10.1 Tablet and even was using my Nexus 10 and they all cast HDTV perfectly. As far as mirroring, I think that my Airline 101 router is too slow since I find that the TV does not keep up. I have a Nexus 7 with Android L installed, and it does mirroring, but it seems to work OK for a while, but then starts lagging. Thinking about getting a better router with more speed. All of my Tablets work perfectly with the router when using the cast feature but only the Nexus 7 has the mirroring, and that is erratic.

  • Carlos Jimenez

    I have an s5 active and I can't cast by screen how will I be able to do this what would I need

  • smAsh

    Those Chromecast certs in the apk are not goggle certs. They are self signed certs by Eureka Root CA. You have been warned.