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2 newbie questions about unlocking/rooting

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MarcoD1
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Default 2 newbie questions about unlocking/rooting

Hello, I want to unlock the bootloader of my sony xperia arc and install a rom on it (xperia ultimate hd rom). I read the sony site to unlock the bootloader and it said that the phone will be wiped. Can I just pull out my SD card before unlocking so I will know for sure that my data won't be deleted? Or is it imported (for system files) to keep my SD card in the phone before unlocking?

And when my bootloader is unlocked, can I install/flash the ICS based rom package on my Gingerbread android? Or do I have to do other things first?

Thanks in advance!

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giannism13
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(Last edited by giannism13; 30th December 2013 at 08:57 PM.)
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Well, I,don't thing that sd card is important on,unlocking bootloader. The only sideffect of unlocking bootloader is the factory reset .Only your apps and settings are deleted. Your photos, videos and generally any file that is stored on your sd ( except apps) will remain untouched. If you are root you can titanium backup to restore your apps. Also make sure you have backuped your contacts.

Now your second question.
It doesn't matter what version you have. For example you can flash from cupcake to kitkat just like you would do if you was on ics or any other android version.

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MarcoD1
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Thanks. For the versions of android installed there is something with kernels, right? Or is that included with the rom?

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giannism13
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Sometimes when you download a Rom, inside the zip is a boot.img ( the kernel). But some devs don't provide a kernel with their Rom but instead they recommend you some third party kernels.

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