While waiting for the Verizon 2.1 (AP: ESE81/BP: C_01.3E.03P ) Droid update that was released today, I stumbled upon this little nugget of information on a forum.

Normally your phone has a process which checks for pending updates every xx hours, but what if you want to force the device to check for updates immediately?   A trick I had used was to set the time 24 hours in advance manually to trigger the OTA check, but this is a much easier way.

  1. Open the standard Android Phone (Dialer) application
  2. Enter *#*#checkin#*#* on the dialer keypad ( *#*#2432546#*#*)
  3. On the last entry of the *, your phone will pause while it is checking for updates.
  4. Once it has completed, you will see a yellow exclamation icon in the notification (or different icon depending on your installed theme) bar letting you know that checkin has been completed and if an update exists you should be notified.
  5. It also appears that Market updates are also rechecked as part of this process, so any new updated applications will also notify you to upgrade your applications


This has been shown to work on 2.1 (Eclair), 2.2 (FroYo), and 2.3 (Gingerbread).  However,  not all custom phone dialers support the codes, so try to use the stock Android dialer if you have multiple installed.  The stock dialer is the one that ships on Google experience devices like the Nexus One, Nexus S, or Droid1.

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  • surprise!!! Didn't work

  • Jef

    The checkin did not work and give you the success notification?Or you were not successful in getting the 2.1 update for Droid? If your device has not been select for the update it will not appear yet

  • Nev

    Worked for me. Android 2.2 HTC Desire

  • Works perfectly, no software updates found, only market updates 🙁

  • Ckevinb

    Samsung not-so-fascinating, enter the text as descibed on phone dialer, nothing happens.

  • Alex B

    Seems to work on the HTC Hero/T-Mobile G2 Touch running 2.1-update1

  • galaxy android2.2.1

    its only says update succesful and i checked phone info in the "settings" no changes to the version

    • The Checkin actually only triggers the device to CHECK for new updates. So the “Success” you see, is it saying it successfully checked for an Update.

      If there were no updates available, but it was successful in checking, it would report it was a successful checkin.

      So, it did what you was supposed to, unfortunately there were no new updates for your device when it checked.



  • yuzhe liew

    don't work

    • Mike

      Worked Perfectly for me.

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  • jasonj

    Works with HTC Inspire and Gingerbread 2.3.3. Great tip Jef, thanks!

  • asjdflas

    does not work, gs3 4.1.2

  • tomtom

    works on nexus 4 android 4.4.4.
    that is the same function as Settings > About > System Update