Develop Bugs

[Q] i can't root

hello
iam trying to root my device xperia arc s with stock rom xxxxxxxxx42
i managed to root it once before but when i flashed a new rom (same stock xxxxxxxxx62) i cant seem to root it (tried with both versions ) iam doing evrything right and its not a drivers issue it keep saying "failed" for evrything ( am rooting using doomlord's root tool v4 )
what could be the problem??????????????!!!!!!!!!!!!!!!!!!
thanks in advance

What's the output of dooms .bat? I'm guessing you have a locked bootloader?
Sent from my LT18i using XDA

0.62 fw wasn't rootable when i had it. Just flash back with flashtool or wotan to 0.42 fw root with doomlords pack. Update again and it is rooted.

You can only get root on .42 with doomlords easy root.
Re flash .42 with flashtools get root, if bootloader is locked then update over the air to .62 root will remain.
DO NOT UPDATE OVER THE AIR IF BOOTLOADER IS UNLOCKED YOU WILL BRICK THE PHONE.
Sent from my LT18i using XDA App

try this http://forum.xda-developers.com/showthread.php?t=1558114

[Q] how to root xperia arc with stock ICS

hey everyone,
I updated my Xperia Arc to ICS via the sony pc companion update. But how do I root this version? Should I go back to gingerbread and root it or is there a way to root it directly, without going back?
Thanks.

If you have firmware 4.1.b.0.431 for ICS 4.0.4 then https://www.google.com.au/#hl=en&sc...=667&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&cad=b or just search what ever firmware you have on google or xda

if you have ics 4.0.3 then u can root it using doomlords oneclick root method. if it is 4.0.4 then u need to flash kernel of 4.0.3 and then root and then u can come back to kernel of 4.0.4 by flashing just the orignal kernel again. or you can download a ready to root 4.o.4 ftf and then flash it on your phone using flashtool.
for 4.0.3 http://forum.xda-developers.com/showthread.php?t=1601038
for 4.0.4(ready to root) http://forum.xda-developers.com/showthread.php?t=1683957

you can root your phone using these simple 3 methods in Here.

Does it void our warranty ?
Sent from my LT15i using xda premium

well i am not 100% sure but i think that rooting wont void your warranty. unlocking bootloader voids your warranty because, root does not remain if you flash another firmware however, an unlocked bootloader is permanaent irrespective of what ever you install on it.
this was my logic however, remember dev's have shown how a bootloader can be relocked. get more info from here http://unlockbootloader.sonymobile.com/

Upgade downgrade? .62. to .562

Is there a website that i can find steps to downgrade upgrade so that I can unlock bootloader and root my arc LT15i.
Thanks

You can unlock the bootloader on any firmware... and just search your question up on xda or google

Thanks I thought someone wrote that you could not do that on .62 firmware but they maybe said that I cant root on .62.

Yeh you cant root on .62 so you have to downgrade to .42 and root on that and if you still want to retain the root and go to .62 you have to do an OTA update

Listen,u cant root firmware .62 directly. However,there is a loophole. First,u need to flash firmaware .42. Then, root firmware .42 using zergrush rooting method( there is a thread somewhere in development). After that, check ur update app in the phone and u will get firmware .62 OTA notification. Just download and install it. This is the way to get firmware .62 rooted.
*u must be on locked bootloader
*make sure u dont delete anything after rooting firmware .42
*if u dont get the firmware .62 notification, its not my fault
Sent from my Arc S using xda premium

I presume I once was on .42 and I updated to .62 firmware...
Can anyone tell me what, if any, difference is there between the two.
I have read that some of you have found that the phone is laggy on .62 and went back to .42
Is it maybe too much for the original Arc being on .62
And also I have read once you unlock the bootloader and downgrade, if you want to upgrade again, you have to relock the bootloader?
Thanks for any info

check this out its an excellent thread..
http://forum.xda-developers.com/showthread.php?t=1653188
hit thanks if i helped

Over air update fails, back to official rom?

My update to 4.1.b.0.431 over air fail on my Sony Xperia Arc S. Pc Companignon tells me I tampered with software. I did some rooting some time ago but actually thought I was on the official ROM again.
Is it possible to flash back to an official ROM and receive future updates over the air again? Or did ruined that path the first time i was flashing ?
Right now im on
android version 4.0.3
build number 4.1.A.0.562
Thanks

Use the flashtool to update. http://forum.xda-developers.com/showthread.php?t=1653188

Do you have unlocked bootloader? If yes, relock it.
Sent from my Xperia Arc S using xda premium

[Q] Update PC Companion? Unlocked BL?

Can you update via PC Companion to update your firmware if you have an Unlocked Bootloader, but have stock kernel and rom (not modified).

Not you can't it will mess your phone.
Sent from my C2004 using Tapatalk

flash the new firmware via flashtool