[Q] upgrade from 2.2 to 2.3.x without rooting

[swimwd]

It is a shame to say that I still use Android 2.2 with Kernel 2.6.32.21, Taiwan version since I bought the phone a year ago.
(Not until recently, I have decided to move on to Gingerbread because
I wanna use the the latest features in the NDK to write some C++ programs for Android.)

Without getting into trouble during/after rooting,
I tried an official OTA upgrade but it doesn't work.
I tried to ask HTC but they said they still don't have any official upgrade for my phone.

I am a newbie here in this forum,
Could anybody please kindly offer your help please?
It will be GREATLY APPRECIATED! I wanna make my App!!!

swimd

 

[steviewevie]

If there is no official Gingerbread for your phone (which seems odd ?) then you can flash a different official GB ROM onto your phone. But normally your phone isn't going to let you do this, because it will fail the signature checks.

What you need to do is to de-brand your phone so that it doesn't do these checks any more. I will see if I can dig out a link to a guide and edit it into my post, unless someone else beats me to it.

Sent from my Desire Z running CM7.

 

[swimwd]

Steviewevie,

Thank you for your help in advance!

 

[steviewevie]

I can't copy and paste the link right now, but use the Search function in the Android Dev forum to find the thread called "Debranding Bell Desire Z" (it doesn't only apply to Bell phones).

Sent from my Desire Z running CM7.

 

[swimwd]

Thank you for the help!
I have found that thread!

BTW, after a quick look of the thread, it seems that S-off is recommended...
Do I need to get "root" in order to do so?
Should I do that to prevent future trouble?

 

[demkantor]

Always recomend rooting phones right away, if you have a custom recovery and an enginering bootloader you can save tons of headaches in the future when problems arise (as they often do) this of course is outside the fact that a rooted phone is a happy phone and certainly not an apple

Sent from my HTC Vision using xda premium

 

[steviewevie]

As demkantor said, getting S-OFF is a lot better because it gives you a lot more options for the future, even if you don't use those options straight away.

IMHO the only reason to use the goldcard method and not full S-OFF is if you are really worried about voiding your warranty or the S-OFF process yourself. But there's no need to worry really, since (a) you can easily reverse the process if you need to, and (b) lots of people here can help you through getting S-OFF (the XDA Wiki explains it very well, though it can look daunting at first).


Sent from my Desire Z running CM7.

 

[redpoint73]

+1 to the notion of just rooting the phone. Especially since if are software developer, I would think that you would want full control over your device. And if you have these type of skill, rooting will be easy.

As mentioned, root, S-Off etc. can be removed for warranty purposes, if that is the concern.

The Wiki method is generally accepted as the safest:
http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_Vision_.28G2.2FDZ.29_and_DHD

 

[swimwd]

demkantor and all,
Thanks!!! ok, I am least I will go for S-OFF!
But, I need to be able to fully recover my OS and Apps,
I need to do some research on stock recovery and/or custom recovery...

 

[hxm3619555]

Well, I think there is an official update to Gingerbread thou.. But I think dont think that version is in English as it is a Hongkong version.