Hi I am a newbie to the android community. I am using a xperia arc s running on official 4.0.3 which has been rooted using the zergrush method. I intend to flash the boost hd rc5 rom and do I need to unlock bootloader to be able to flash the kernel first? Appreciate any help.
Thank You!!!
yes you have to open your bootloader
no you do not need to necessarily unlock your bootloader to flash a custom kernel...youcan always hotboot into one if you need it so urgently....
however, i wod anytime recommend you to unlock your bootloder....
an unlockd bootloder, garuntees you that come what may, you device is always recoverable and every mistake can be fixed...although you lose your warranty, you can always, relock it using the methods our devs have shown....with that, you can always claim back your warranty....
http://forum.xda-developers.com/showthread.php?t=1324703
Related
Hi Guys, sorry for this noobish question
I have unlocked my bootloader R800i and rooted it using fastboot method
My question is, if i relock my bootloader, will i lose my root and will i be able to do OTA update for ICS coming end of April?
RezaFaliq said:
Hi Guys, sorry for this noobish question
I have unlocked my bootloader R800i and rooted it using fastboot method
My question is, if i relock my bootloader, will i lose my root and will i be able to do OTA update for ICS coming end of April?
Click to expand...
Click to collapse
You can have root without unlocked bootloader
but It makes me wonder why you would revert back to locked?
just wait for someone to make a ROM / nandroid and flash the new file lol.
OTA is for people who aren't used to fooling with there device
apparently i tried rooting but i cant root without unlocking bootloader, only after i unlocked the bootloader i manage to get root
so it is advisable to just keep my unlock bootloader and flash new roms using Flashtool?
RezaFaliq said:
apparently i tried rooting but i cant root without unlocking bootloader, only after i unlocked the bootloader i manage to get root
so it is advisable to just keep my unlock bootloader and flash new roms using Flashtool?
Click to expand...
Click to collapse
If you want a practically guaranteed method of rooting, yes that would be easiest. FTFs only come out like 1-2 weeks at most after the update is sent out anyway
hi to every one i would like to ask before i unlock my bootloader and rooting stuff. im presently on stock rom right now with firmware 2.3.4 baseband ver. -64 and build number .62. i alredy browse threads and guides about this but unfortunately i was not able to find answer.
ok my question is this.
1. will it be possible for me to install custom rom if im just going to unlock my bootloader but not rooted?
2. there are topics about easy rooting on gen. discussion .i just like to ask,is it possible to disregard downgrading process from .62 to .42 if the bootloader is unlocked for the rooting process. since i dont want to downgrade.there has been issues of bricking the phone if your going to downgrade and update afterwards via ota.
3. can anyone give me updated guide for unlocking bootloader and rooting based on my current firmware.
Thanks in advance.
shallumabijah said:
1. will it be possible for me to install custom rom if im just going to unlock my bootloader but not rooted?
Click to expand...
Click to collapse
Yes, custom roms are usually (always?) prerooted, so it gives u root permissions. Bootloader is needed to flash custom kernel.
shallumabijah said:
2. there are topics about easy rooting on gen. discussion .i just like to ask,is it possible to disregard downgrading process from .62 to .42 if the bootloader is unlocked for the rooting process. since i dont want to downgrade.there has been issues of bricking the phone if your going to downgrade and update afterwards via ota.
Click to expand...
Click to collapse
If the bootloader is unlocked ur phone gets bricked after update. However u can downgrade with locked bootloader, next root and than update. If u want lock bootloader use file attached (unpack rar archive and flash ftf using flashtool).
On the other hand u can install CWM and use RootXperia.zip (attached) to root.
shallumabijah said:
3. can anyone give me updated guide for unlocking bootloader and rooting based on my current firmware.
Click to expand...
Click to collapse
Bootloader:
Unlocking
Root:
1. 2.3.3 - use SuperOneClick Method (maybe work with 2.3.4 i dont use it) or RootXperia.zip or custom Kernel/Rom
2. 2.3.4 - use RootXperia.zip or Custom Kernel/Rom
chemney thanks for the reply..strange i cant find the thanks button using my arc. im going to use my compiuter later.
my arc is 2 days old. so im thinking if im going to unlock and root my phone or not..haha.
Unlock it
You won't regret it
Sent from my LT15i using XDA Premium App
@flo95
im really planning to do that.but before proceeding i would like to ask if it is compulsary to downgrade to .42 to gain root access cuz my im on .62 right now.
what do you think should i do first unlock bootloader or the rooting process.?
actually i already tried to unlock my boot loader but in typing imei process the instruction wanted me type 14 digits but upon seing my phones imei it has 15 digits. haha
@shallumabijah
next time read instructions it better
Instructions | Sony Xperia said:
the first 14 digits (remove the last digit) of your phone’s IMEI number
Click to expand...
Click to collapse
first what i did when i began to want root my phone was unlocking bootloader and than flashing DooMKernel which is prerooted and i didnt need to do it myself (also i got OverClocking, UnderVolting and some other things which i hadnt with stock kernel)
shallumabijah said:
chemney thanks for the reply..strange i cant find the thanks button using my arc. im going to use my compiuter later.
my arc is 2 days old. so im thinking if im going to unlock and root my phone or not..haha.
Click to expand...
Click to collapse
no problem. in xda app if u touch post for the moment u got menu. slide it and there is bouquet of flower with "thanks" (i think cause i have polish version)
ch3mn3y said:
@shallumabijah
learn reading
first what i did when i began to want root my phone was unlocking bootloader and than flashing DooMKernel which is prerooted and i didnt need to do it myself (also i got OverClocking, UnderVolting and some other things which i hadnt with stock kernel)
Click to expand...
Click to collapse
ive been reading topics about this but up to now my confidence is not that hi to proceed. im on htc desire s before which is rooted. i think im going read more before proceeding..im new to arc society.hehe.thanks again.
Okay sorry about all the threads its just I keep getting other problems. I want to get Root, Unlocked Boatloader, Custom Kernel and a Rom for my arc S. I flashed back to .42 so start all over but I can seem to root it now, if I use SuperOneClick can I still unlock the boatloader? If someone can just post some easy steps that I can follow it would be appreciated. DooMs easy rooting kit did not work either and nierther did the RootXperia.zip file :/ So please help?
Thanks a lot for those who do!
rooting has no effect on bootloader 'unlockability', but if you unlock your bootloader you'll find any kernel/rom you flash will be pre-rooted. There are a few ways to unlock, I used the SE/Sony site which gives you a step by step guide. You can use other methods by certain xda members, though they're not free obviously. I found this helpful too.
sinkster said:
rooting has no effect on bootloader 'unlockability', but if you unlock your bootloader you'll find any kernel/rom you flash will be pre-rooted. There are a few ways to unlock, I used the SE/Sony site which gives you a step by step guide. You can use other methods by certain xda members, though they're not free obviously. I found this helpful too.
Click to expand...
Click to collapse
Do I unlock the boatloader first?
Yep, no need to root if it's unlocked. Read everything before you attempt it, there are a few downloads before you can use adb(for fastboot, etc) so google anything you're no too clear on. It's fairly straightforward but can be time consuming...
sinkster said:
Yep, no need to root if it's unlocked. Read everything before you attempt it, there are a few downloads before you can use adb(for fastboot, etc) so google anything you're no too clear on. It's fairly straightforward but can be time consuming...
Click to expand...
Click to collapse
So can I also unlock it .42 then do OTA and it will still be unlocked?
Basically, once you've unlocked your bootloader you can't use OTA or pc companion to update. You need to use firmwares/roms from xda, so you would use flashtool to flash a rom, fastboot to boot a kernel. Most devs will give instructions in their threads. Unlocking your bootloader doesn't automatically root your phone; flashing a custom rom or booting a custom kernel will.
sinkster said:
Basically, once you've unlocked your bootloader you can't use OTA or pc companion to update. You need to use firmwares/roms from xda, so you would use flashtool to flash a rom, fastboot to boot a kernel. Most devs will give instructions in their threads. Unlocking your bootloader doesn't automatically root your phone; flashing a custom rom or booting a custom kernel will.
Click to expand...
Click to collapse
Could you PM me please?
Hi Guys ,
can I unroot to get warranty back? Never ever flashed a custom rom nor I unlcoked bootloader.. Furthermroe I want to know If rooting is verfifable?
Thanks in advance!
As long as you don't tell them I guess. However if you need to unlock your bootloader too for any reason they will need to know and thus it will invalidate your warranty. If you just want root etc then it should not be an issue. It's more of a moral issue really. If you do a repair in PC Companion it will return the phone to factory defaults and they should not be able to tell.
btw root doesn't void the warranty..you can still claim the warranty even if your phone is rooted.
arpith.fbi said:
btw root doesn't void the warranty..you can still claim the warranty even if your phone is rooted.
Click to expand...
Click to collapse
Not strictly true, Sony don't recommend rooting hence no official way to root..... So yes you would lose your warranty but flash using pc companion and root is gone.
Unlocking bootloader will lose your warranty either officially our by unofficial ways.
Sent from my LT18i using xda premium
I think that is good place to ask:
how far I can go without touching bootloader? root - ok, I know.
But CWM, flashing zips/ROMs? Yep, there is so many tutorials, for so many versions and cases. I'm unable to read everything and need answer from someone who 'just know it'
even if ur phone is not rooted unlocking bootloader voids ur warranty .. U can always get ur warranty back by flashing generic firmware using flashtool....... And ofcourse u can relock it using flashtool...
Sent from my LT18a using xda app-developers app
yo
TigerStyleZ said:
Hi Guys ,
can I unroot to get warranty back? Never ever flashed a custom rom nor I unlcoked bootloader.. Furthermroe I want to know If rooting is verfifable?
Thanks in advance!
Click to expand...
Click to collapse
hey tigerstylezz..
dude, you can root your phone without unlocking bootloader..and unlocking boot loader voids your warranty,
go to google and search how to root arc s without unlocking bootloader..there will be a forum from androidauthority.com..just go to that one
root your arc s using the method..this will not void warranty or unlock your bootloader..it will still be locked..
so now download a app from the market called xparts..specially made for xperia phones...open it and it will ask for superuser permissions..
select allow..and then install custom recovery using the app..now that you have custom recovery installed, you can now install a few custom roms to your xperia arc s like jelly sanwhich...just skip the flashing kernel part in instructions of installation of rom..now flash rom using custom recovery..unlocking your bootloader only allows you to flash new kernels...so some roms work on stock ics kernel of xperia arc s
some of those roms are..jj's hybrid rom, jelly sandwhich, xperia ice bean and search more roms that work on locked bootloader on arc s on xda forums..and if you wish to unlock your bootloader.. you just do that and then you can unlock it by flashing a .ftf file on your device..just search it on google as xperia arc s relock bootloader.ftf file and download it and flash it through xperia flashtool...
if any problem or a quetion just ask me ...
plzz hit thanks if i helped:cyclops::cyclops:
deadman3000 said:
As long as you don't tell them I guess. However if you need to unlock your bootloader too for any reason they will need to know and thus it will invalidate your warranty. If you just want root etc then it should not be an issue. It's more of a moral issue really. If you do a repair in PC Companion it will return the phone to factory defaults and they should not be able to tell.
Click to expand...
Click to collapse
this only happens in india lol:victory:
---------- Post added at 06:59 PM ---------- Previous post was at 06:52 PM ----------
wzearsdcx said:
I think that is good place to ask:
how far I can go without touching bootloader? root - ok, I know.
But CWM, flashing zips/ROMs? Yep, there is so many tutorials, for so many versions and cases. I'm unable to read everything and need answer from someone who 'just know it'
Click to expand...
Click to collapse
i have explained it all man in this thread just read that and you will know everything mate
wzearsdcx said:
I think that is good place to ask:
how far I can go without touching bootloader? root - ok, I know.
But CWM, flashing zips/ROMs? Yep, there is so many tutorials, for so many versions and cases. I'm unable to read everything and need answer from someone who 'just know it'
Click to expand...
Click to collapse
Flashing zips (which contain themes/mods) with cwm you only need root.
There are very limited roms available that will install with unlocked bootloader,I think only pureness Rom is available, you need unlocked bootloader to install custom kernels which the custom roms support.
Sent from my LT18i using xda premium
Thanks for all the Answers - Yes I know that unlocking Bootloader and Rooting are two different things... I just asked if it is verfifable by Sony if you had rooted your device? Isn´t there any Hidden file saved in the Ramdisk or whether where it saves the Permission Lock? And if not - during the UPDATE Process ON SEUS OR PCCompanion - don´t they SAVE any .Log or something and send it to the Servers, with the IMEI? I knot that I can just usually flash back and things.. Just wanted to know if Sony can find out that I ve rooted ?
BTW: For root .587 I have to flash a kernel (FTF) Downgrade - and then Root - and Upgrade it. So you can Flash Kernels.
I just come from the X10 --> Arc S which is way better I think( Still love the X10 , but Arc S my new love)
@wzordnaec
You can flash Themes etc.. which are realiable to your curent ROm - you can flash MODS , apps everything , that doesnt requires Unlocked bootloader
Requst
sir i want to know that
if i root my micromax a87 with software like unlockroot
and again i unroot it with that software only
warranty of my phon will lost
as rooting losts warranty
can i gain back the warranty by rooting
or is there software to unroot and gain warranty
plz repy my request
yours user
TigerStyleZ said:
Hi Guys ,
can I unroot to get warranty back? Never ever flashed a custom rom nor I unlcoked bootloader.. Furthermroe I want to know If rooting is verfifable?
Thanks in advance!
Click to expand...
Click to collapse
if you rooted your phone without unlocking the bootloader just flash a clean firmware to get back your warranty
if you unlocked the bootloader then there is no chance to get back your warranty
ash-ta said:
if you rooted your phone without unlocking the bootloader just flash a clean firmware to get back your warranty
if you unlocked the bootloader then there is no chance to get back your warranty
Click to expand...
Click to collapse
Hi All,
Nice info.
Although I've been on some scenario where my handset wont boot up, so I cant revert my ROM & relock my bootloader.
Turns out it was hardware failure and after fixing it, the tech guy found I was using custom ROM, hence my waranty were void
Hello,
I'm one of those lucky guys who got the 2.55 build number.
Wandered around the forum for some time, seeking for a way to root my phone, but don't want to risk before being 99% sure that this may work.
As I understood, Bin4ry's method won't work with my phone, which results in need of unlocking the bootloader.
I checked its status and it shows that its Unlockable = Yes.
Now, let's say I unlock the bootloader, what should I do next? Flash a prerooted ROM?
All I could've found on forums was "UNLOCK YOUR BOOTLOADER" and "BIN4RY'S METHOD" stuff. Maybe because people were posting about this 2.55 thing alot. Maybe not.
All I need is a n00b friendly tutorial.
Btw, I'm on 4.0.4 ICS, which is pretty obvious.
Thank you, in advance.
Sent from my LT26i using xda app-developers app
Unlock your bootloader and just flash an auto rooting kernel.
But if you're unlocking the bootloader you may as well flash a Jellybean rom anyway
Sent from my Jellybean Xperia S
Hi, I hope the OP doesn't mind, but I'm kinda in the same situation and I need some help from you guys, because I am currently a Samsung owner (please don't throw rocks ) and I don't really know much about flashing ROM's on Sony.
So... I have with me my brother-in-law's Xperia S with 6.1.A.0.453 (ICS 4.0.4), never been tampered with, just bought, updated to ICS and rooted with Bin4ry's method.
All great, but I was hoping to flash 6.1.A.2.55, because I heard it is the latest.
But now the hard part comes, the phone has Locked Bootloader and I can't unlock it because "Service info > Configuration > Rooting Status > Bootloader unlock allowed" says NO.
That being said, if I flash the .55, how do I root it?
I updated and rooted an Xperia U a while back, using a method of changing the kernels, something like this:
Flashing the ROM I want (the one that can't be rooted)
Flashing an older kernel from a stock Rom witch was rootable
Root it
Flash the kernel of the last ROM, and root remains.
Do you guys thing that this method will work on Xperia S?
Flashing .55
Flashing an old kernel (from 6.1.A.2.45 or other that can be rooted)
Root it
Flashing the kernel of .55 again, and hoping that the Root remains.
Also, where could I find those kernels?
Ben36 said:
Unlock your bootloader and just flash an auto rooting kernel.
But if you're unlocking the bootloader you may as well flash a Jellybean rom anyway
Sent from my Jellybean Xperia S
Click to expand...
Click to collapse
bro
please tell me how to root xperia s 6.1.A.2.55, I already unlock the boot loader , but i dont know how to root. so i relock again. Please tell me how to root and can you send the ftf file for jelly bean rom. And i want to know what is kernel . i cant find it.