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Currently I am using HTC Hero with Android 1.5 and as we know right now Android 2.2 (Froyo) has been released, so i am planning to upgrade from 1.5 to 2.2.

Regarding updating, I have the following questions:

  1. How do I update it?
  2. Is there any selection options provided to update? For example I want to update my 1.5 to 2.1 instead of 2.2, 2.0 or anything else.
  3. Are there any issues that have already occurred with Android 2.2?
  4. What if I want to down-grade to lower version, is it possible? (i.e. rollback to older version)
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  • Please clarify, are you referring to the SDK, Android development environment, or are you referring to the OS running on your phone? Two entirely different things.
    – Webs
    Commented Aug 27, 2010 at 15:25
  • @Webs i am talking about updation of my Android phone's OS (i.e. SDK) from 1.5 to 2.2
    – Paresh Mayani
    Commented Aug 28, 2010 at 5:01
  • Ah yes, well the Hero cannot be updated past 2.1. That is as far as Sprint and HTC have gone. Just go to HTC's website and download the update, plug your phone in and have at it. Keep in mind you might lose settings and apps you downloaded. But updating is a good idea. The only way to get 2.2 on a Hero would be to root it. But most 2.2 roms are not fully functioning with everything in the Hero.
    – Webs
    Commented Aug 29, 2010 at 15:13
  • @webs i dont know anything about "root" the phone , what is the meaning of "root" and what are the probable advantages of "Root" phone ?
    – Paresh Mayani
    Commented Aug 30, 2010 at 5:04
  • @Paresh, If you do not know anything about rooting your phone you may want to take some time to read about it before attempting. A lot of new people have trouble understanding some of the concepts so make sure you read a lot before diving in. Check out XDA Forums (forum.xda-developers.com/forumdisplay.php?f=643) for more info.
    – Webs
    Commented Aug 31, 2010 at 19:12

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Unfortunately, if you were running SDK 1.6 or later you could just update without installing a new SDK. But for 1.5 you need to install a new SDK. Per this link from Google http://developer.android.com/sdk/installing.html (see quoted text below)...

How ever, you can backup your projects and move them into the new SDK environment. So it looks like all may not be lost. Just read that link above pretty thoroughly.

Updating?

If you are currently using the Android 1.6 SDK or later and want to update to the latest tools or platforms, you do not need to install a new SDK. Instead, you can simply update the individual components in your SDK using the Android SDK and AVD Manager tool. For information about how to do that, see Updating SDK Components

If you are using Android 1.5 SDK or earlier, you should install a new SDK as described in this document and move your application projects to the new SDK environment.

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  • @Webs i am talking about update sdk on my HTC Hero phone ...is this information helpful ??
    – Paresh Mayani
    Commented Aug 27, 2010 at 13:44
  • @Paresh: the SDK is "Software Development Kit". I think you've confused that with the version of Android running on your phone.
    – richq
    Commented Aug 27, 2010 at 14:01
  • Ah yes, we need some more clarification.
    – Webs
    Commented Aug 27, 2010 at 15:25

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