topic Re: First attempt to root.......Please help....! in XPERIA archive

First attempt to root.......Please help....!

Xperia80 — Tue, 03 Dec 2013 04:54:31 GMT

I have a xperia u (ICS 4.0.4) after update to the ICS my phone lags a lot and very slow.So i thought i should flash a JB(4.1 or 4.2) rom.I didn`t do it ,because JB roms have major bugs(camera not working).Soi am happy to stick with ICS.If you know any stable jelly ben rom please tell me.I found that xperia u, firmware version 6.1.1.b.1.100 is more smooth and less bugs ,but it`s not availbale to update via pc companion ,I am sorry that i ask previously ask questions ,i saw a uliwooly`s page about upgrading but i don`t undstand that becaue this is my first attempt.please answer my questions.My English not good, sorry for that.this is like a exam paper ,Thank you

current staus------------------>
Sony Xperia U (ST25i)
ICS 4.0.4
Firmware 6.1.1.b.1.54
(Qustion look simillar but read whole question,put the question number and answer,because it easy to undstand)

1) how to find my phone root or unlocked bootloader(because i buy it from a friend) ?
2) Do i need to unlock my bootloader to flash a new firmware version ?
3) Do i need to unlock my bootloader to install a JB(4.1 or 4....) rom ?
4) what is the most smooth and lees bug sony firmware for xperia u (i found that it is 6.1.1.b.1.100 ,http://www.xperiablog.net/2013/06/22/new-firmware-released-for-xperia-u-6-1-1-b-1-100/) ?

5) Do you know any jelly bean rom for xperia u which is stable and no major bugs ?
6) Can i use sony flash tool to flash my phone (http://developer.sonymobile.com/services/flash-tool/) ?
7) After i flash my phone ,if sony release a new update can i install it via pc companion ?
😎 After unlock the bootloader,,if sony release a new update can i install it via pc companion ?
9) After i flash a new Firmware ,If i want to go back to old firmware ,can i do that ?

10) After i flash a new Firmware ,If i want to go back to old firmware ,can i do that ?
11) After i flash a Jelly bean rom ,If i want to go back ICS (firmware 6.1.1.b.1.54 ) ,can i do that ?
12) Can i unroot ? can i locked my bootloader if i unlocked ?

Re: First attempt to root.......Please help....!

Uliwooly — Tue, 03 Dec 2013 05:35:11 GMT

1. 2. you don't have to unlock the bootloader to neither flash your phone nor root your phone

3. yes

4. GB its a lot more stable than ICS

5. check the XDA forum

How to manually update, downgrade, root 2012 Xperias

http://talk.sonymobile.com/thread/41609

7. if you unlock the bootloader you won't, otherwise you will

8. you will have to relock the bootloader BUT your DRM keys will be gone forever

9. 10. check 6.

11. you have to relock the bootloader then flash back but your DRM keys will be gone

12. yes, you can root with PCC or SUS, you can't use PCC nor SUS with an unlocked bootloader

Re: First attempt to root.......Please help....!

Xperia80 — Tue, 03 Dec 2013 06:10:59 GMT

wow thanks,but how do i know i my phone was root ? & unlocked the bootloader ? and can you pleas explain 8 to 12 answers explain bit more,i mean more detaily.....!

Re: First attempt to root.......Please help....!

Uliwooly — Tue, 03 Dec 2013 06:39:48 GMT

if your bootloader its unlocked you can NOT use PCC nor SUS, it will say that you have modified software, to test if you have root access simple, install any app that require root access such as root explorer or barnacle tethering, etc.

Re: First attempt to root.......Please help....!

Uliwooly — Tue, 03 Dec 2013 06:42:51 GMT

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

Re: First attempt to root.......Please help....!

devsatan — Tue, 03 Dec 2013 08:21:11 GMT

1) You can find whether you phone's bootloader was unlocked or not by simply dialing *#*#7378423#*#* Then go to service info >> Configuration ANd see what's the staus of Bootloader.

2) No, you dont need to unlock your bootloader to flash either ICS or Gingerbread.

3) Yes, If you are installing a custom rom auch as Cyanogen Mod or Custom jelly bean rom ,then you should unlock your bootloader.

4 , 5) Yes according to me this is the most stable version of ICS. but I did like to prefer to use Jelly bean rom by Devswift as it is fully stable with no bugs.

6) Yes, Flashtool is the only tool that works with sony phones to flash a .FTF file which is a firmware file for all sony phones.

7) It depends on whether you have installed a regional firmware or some other operators firmwares.

11) Yes you can simply go back to previous version of ICS or Gingerbread but you should do it in a right way otherwise you will brick your phone.

Re: First attempt to root.......Please help....!

anfer66 — Tue, 03 Dec 2013 15:31:10 GMT

i ask the question(xperia 80 is me) but,after sign out i unable to sing in so use a different account.
you informationa are very helpful,but please can you tell me how to find the Devswift JB rom,how to download it ? and can you keep in touch with this discussion ?

Re: First attempt to root.......Please help....!

devsatan — Tue, 03 Dec 2013 16:48:15 GMT

Yes sure. I will tell you the whole procedure how to do safely do it .

And don't forget to give kudos and to select the correct answer.

Re: First attempt to root.......Please help....!

Uliwooly — Tue, 03 Dec 2013 17:49:40 GMT

It's not wise to share private info, its better to post everything here as other users might want to know

Re: First attempt to root.......Please help....!

anfer66 — Wed, 04 Dec 2013 04:25:41 GMT

i am soory,uliwooly is right,their is no need of private discussion,you can post all the information here,.....!

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 07:00:58 GMT

By following up the tutorial you must agree that I am not responsible for any damage caused to your phone . Proceed at your own risk.

1) First of all you have to unlock your bootloader by going to http://unlockbootloader.sonymobile.com/instructions

Note that this step is irreversible .You will lost all your DRM keys and after uncloking the bootloader your warranty is also void now. So please make sure that you do the things at your own risk . I am not responsible for any damage caused to your device.

2) Second step is to root your phone.This can be done by using Flashtool.If you are on 6.1.1.B.1.10 the simply root it using flashtool.

2.1) If you have a different verison like 6.1.1.B.1.100 then First flash the kernel of 6.1.1.B.1.10 then root your phone using flashtool.

2) After you have successfully unlocked your bootloader and root your phone ,you have to flash CMW to flash a JB rom which is a Zip file.There are lots of tutorials on internet about the same thing .So Google it and flash it on your phone.

3) Donwload Dewswift JB port from xperia P form XDA developers . You will surely find it using google.

3) Next thing is flashing.Make sure that ICS rom is accessible. Boot the phone to ICS then place .ZIP file in sdcard then disconnect your phone.

4) Next go to recovery by simply pressing volume down key when you see the SONY logo and you are in CMW recovery .

5) WIpe cache partition, Dalvik cache and also data and system n which is in advanced menu.

6) Next choose zip form sd card option and you will see the .zip file on your sd card . Simply press the middle dot on your phone and the flashing will start.

7) After successful completion boot your phone.Note that first boot will take a while and after then you will see the homescreen .

😎 Congratlation you have just installed JB rom on your Xperia U . Happy flashing.

9) You can also check the version you are using . Simply got to Setting >About Phone>Android Version>4.1.2

Double tap on this and you would see the jelly bean logo. Thankyou.

NOTE:-

#include <Your warranty is void now>

I am not responsible for any damage caused to your phone .This is for education purposes only. Do the things at your own risk.

Re: First attempt to root.......Please help....!

anfer66 — Wed, 04 Dec 2013 07:09:56 GMT

thanks i am on 6.1.1.b.1.54 ?
their is no sd card funtion for xperia u,do you mean intenal memory ?
how to backup my current firmware ?
did you try above mention steps ?
some tips to remmber when i do this ?,thinks i may careful ?

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 07:44:04 GMT

If you are on 6.1.1.B.1.54 then for rooting you would have to flash the kernel of firmware of 6.1.1.B.1.10 using flashtool. Simply open flashtool the select the Thunder icon and then select flashmod. Select you firmware. MAke sure that you untick all the items that are in Wipe Column and also EXCLUDE (Partition,TA , FOTA,Baseband and System ) .

2) Then you have left with loader.sin and kernel.sin in the content column. Then click on Flash. It wiil ask you to connect your phone in flashmod mode.

3) Simply disconnect you phone from computer and switch it off. Keep pressing Volume Down key and plug the phone into computer and flashtool will start the operation. Make sure you have all the drivers for you xperia u which are in flashtool folder.

4) After successful flashing the kernel switch ON the phone and root it and install CMW into your phone .

SD card means the internal memory of your phone . In xperia u this is recognised as Sdcard0 and palce the zip file in root of your sdcard .

5) To take backup of you phone you can use the CMW feature of backup and restore which backup your full phone to Sd card .

6) Yes, I tried the steps and I am successfull in installing JB rom into my phone.

Here are some screen shots.....

And don't forget to give kudos and to select the correct answer.

Re: First attempt to root.......Please help....!

miksa — Wed, 04 Dec 2013 10:58:22 GMT

please tell me because i see you are using devswift's jelly bean how is camera on that rom? is it better then ics or not?does it focus slowly or normal like on Gingerbread?and how is quality in comparasion to ICS and GB?

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 11:44:46 GMT

Camera is working great on this rom . I have been using this rom for last 1 month. I don't think there is any issue or bug with this rom or with camera funtionality.

Focus functionality is same as in ICS or in gingerbread with same Auto focus Function.

I would give 9/10 as I compared this rom with ICS becasue Sony stock ICS(Version 6.1.1.B.1.10) is so laggy and full of bugs.

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 11:46:31 GMT

Camera is working great on this rom . I have been using this rom for last 1 month. I don't think there is any issue or bug with this rom or with camera funtionality.

Focus functionality is same as in ICS or in gingerbread with same Auto focus Function.

I would give 9/10 as I compared this rom with ICS becasue Sony stock ICS(Version 6.1.1.B.1.10) is so laggy and full of bugs.

Ram management is great on this rom. Battery life is good and is same as with ICS.

Re: First attempt to root.......Please help....!

anfer66 — Wed, 04 Dec 2013 12:06:28 GMT

now i am so excited to give a try,i look at xda and i find few rom what is devswift's jelly bean rom ?

http://forum.xda-developers.com/showthread.php?t=2284394
http://forum.xda-developers.com/showthread.php?t=2461791
http://forum.xda-developers.com/showthread.php?t=2420029

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 12:29:26 GMT

The first link contains the Dewswifts rom. Download the lite verison of this rom i.e V6

http://forum.xda-developers.com/showthread.php?t=2284394

Re: First attempt to root.......Please help....!

miksa — Wed, 04 Dec 2013 15:00:01 GMT

i know that devswift rom dont have bugs and camera works i only asked because on ics camera work but is sooo slow to focus and i hope that is corrected in jelly bean

Re: First attempt to root.......Please help....!

devsatan — Wed, 04 Dec 2013 15:22:24 GMT

Don't worry about the camera . It is best in jelly bean . The focus function is fast and you can point to any objet rapidly to take a picture. So, don't worry about that .Just flash it.

Note :- One thing you woult not get in Jelly bean by devswift (Only in lite version V6) is Google Apps . You have to download all these manually from Playstore . Playsotre is included but e.g. Maps ,Gmail,You Tube these are not included in lite version.

But if you download the full version you get all these by default. But the rom is slow as compared to jelly bean lite version . So flash according to your requirements.