[Q] Questions for installing custom ROM on Asian Aria - HTC Aria Q&A, Help & Troubleshooting

Hi, I have an Asian HTC Aria (bought it on a recent trip to Hong Kong). I tried to upgrade to Froyo (2.2), but it keeps failing and displaying the Red Exclamation mark icon (I spoke to HTC but they said it was a phone destined for Zambia and therefore I would have to speak to them, but they where no help as they don't even have the Aria as a product.
I want to upgrade the Aria to Froyo so have decided to try using a custom ROM.
I'm new to this android custom ROM thingy and I've been reading avidly the forums for the last week or so, I think I'm ready to reflash my Aria but still have some small questions that I would be very grateful for answers for.
1. I want to create a nandroid backup without installing clockwork recovery so that I can revert to the stock (Asia) ROM should installing a custom ROM still not work, will this also back up hBoot, and if I use the unrevoked method of gaining root will I be able to take the phone exactly back to stock?
2. What exactly is a RUU, and will this one (probably) work for my Asian Aria?
Asia HK-RUU_Liberty_hTC_Asia_HK_CHT_1.35.708.4 or will my nandroid backup perform the same function?
3. I will probably want to use Liberated Aria Froyo Series FR008 12/13/2010 **Fully working OC Kernel**. Will this work with an Asian Aria even though its based on a European Rom? Is there anything else I need to be aware of for an Asian Aria?
4. When I install Liberated Aria Froyo Series FR008 12/13/2010 do I also need to install a new kernel? eg (FR008 Default or Hong Kong Shipping 2.2 Kernel) and what is the difference between these kernels?
Thanks heaps for your help guys,
Michael

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snoopstaa said:
Hi, I have an Asian HTC Aria (bought it on a recent trip to Hong Kong). I tried to upgrade to Froyo (2.2), but it keeps failing and displaying the Red Exclamation mark icon (I spoke to HTC but they said it was a phone destined for Zambia and therefore I would have to speak to them, but they where no help as they don't even have the Aria as a product.
I want to upgrade the Aria to Froyo so have decided to try using a custom ROM.
I'm new to this android custom ROM thingy and I've been reading avidly the forums for the last week or so, I think I'm ready to reflash my Aria but still have some small questions that I would be very grateful for answers for.
1. I want to create a nandroid backup without installing clockwork recovery so that I can revert to the stock (Asia) ROM should installing a custom ROM still not work, will this also back up hBoot, and if I use the unrevoked method of gaining root will I be able to take the phone exactly back to stock?
2. What exactly is a RUU, and will this one (probably) work for my Asian Aria?
Asia HK-RUU_Liberty_hTC_Asia_HK_CHT_1.35.708.4 or will my nandroid backup perform the same function?
3. I will probably want to use Liberated Aria Froyo Series FR008 12/13/2010 **Fully working OC Kernel**. Will this work with an Asian Aria even though its based on a European Rom? Is there anything else I need to be aware of for an Asian Aria?
4. When I install Liberated Aria Froyo Series FR008 12/13/2010 do I also need to install a new kernel? eg (FR008 Default or Hong Kong Shipping 2.2 Kernel) and what is the difference between these kernels?
Thanks heaps for your help guys,
Michael
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1. A 'nandroid' backup is a function under ClockworkMod, which requires that you root and install CWM as a custom recovery. It makes a complete backup of the phone except for the HBOOT loader. It is very handy when you are in the process of trying out different ROMs. If you don't like one, just reboot into ClockworkMod and restore one of your backups.
2. RUU is an official HTC ROM Update Utility that will load a new ROM version to your phone. A RUU will usually include the ROM, HBOOT and Radio images. The only exception to this is that if you flash the Froyo 2.2 RUU with the newest HBOOT loader code, you will no longer be able to root your phone. Even if you install an older RUU with Android 2.1, it will not overwrite the
3/4. Liberated FR008 should work just fine. The default install has a custom kernel that allows you to overclock your phone's processor to run faster. The Hong Kong kernel is a stock HTC kernel that does not have overclocking ability.