My Xperia Arc seems unrootable?! Please help me!

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Hello Everybody,

I may need your help!

I've got a Sony Ericsson Xperia Arc (Lt15i) with Android 2.3.4 on it. (Stock ROM)

When I got my Arc, I rootet it with the Doomloard tool... it worked without errors..

Then I had to send my mobilephone to the repair center because of a crack in the housing ... unfortunately they reset my Arc to stocksettings, like they ever did.

Then I tried to root it again, but it was not possible to root it one more time.
I installed flashtool 0.8.0.0 to flash the stockkernel once again, but rooting still doesn't work.While the rootingprocess there were errors like .. *failed to copy..* whatever..

When I watch the files on the intern phonestorage through Astro filemanager.. I'm able to see two folders which seem not to be removed through flashing or resetting to default settings etc. *root* and *sbin*

is it posssible that this two folders are the reasons why i can't root anymore?
If it's so, how can they be removed?

But may it be possible that I can only root the LT15i_4.0.2.A.0.42 ROM and not the later versions like .62 or .69?

I'm not able to find a working LT15i_4.0.2.A.0.42 Stock ROM in the internet.. all the ones I downloaded didn't work.. flashtool said flashing failed..

Could anyone post a link to me with a working .42 Stockkernel?
Or could anyone help me to root my mobile once again..

Nice greetings from Germany,

Eric

PS: I'm not very good on this area and my English is not the best, so it would be nice if you'll try to explain it very simple..

The .62 and .69 cant be rooted.

Uf you got unlocked bootloader just boot a gb kernel with flash and install root.zip (download it from superuser site)

There are many threads with roms on general thread, sticked.

Typed down from the sky with sexy LT15i

Thank you for your Answer! But I don't know wether by bootloader is locked or not... Could you post me a link with such a kernel?

I flashed .42 on my arc but the rooting didn't work.. :(

What could be the problem?

If you don't know whether your bootloader is unlocked or not, I'm fairly certain that it's still locked. LOL!

The .42 fw is rootable with Gingerbreak v1.20. It's an .apk file. If that doesn't work, try v1.10.

So technically, Gingerbreak is all you need to root .42. You don't require an unlocked bootloader just for that.

Once you're rooted, you can upgrade to .62 OTA to still keep root.

(If you really want to unlock your bootloader, head over to Sony's website. Clear instructions are given there. You can do it for free but this voids your warranty. And keep your IMEI at hand. You'll need to enter it on the website).


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