Develop Bugs

Xperia Arc S won't start after updating to ICS

I used PC Companion to update my Sony Xperia Arc S to ICS (Official Sony update). The update did not complete and showed an error. When I tried turning on my phone, it displays the Sony logo, followed by the image of a phone with an exclamation symbol next to it. Then the phone goes blank. I even tried removing the battery and putting it back. Also tried charging my phone. The same thing happens. I don't know what to do. Please help guys. I'm scared that I won't be able to revive my phone!

Flash an .431 firmware through flashtool on you arc and it will be fixed

Urbandevil said:
I used PC Companion to update my Sony Xperia Arc S to ICS (Official Sony update). The update did not complete and showed an error. When I tried turning on my phone, it displays the Sony logo, followed by the image of a phone with an exclamation symbol next to it. Then the phone goes blank. I even tried removing the battery and putting it back. Also tried charging my phone. The same thing happens. I don't know what to do. Please help guys. I'm scared that I won't be able to revive my phone!
Click to expand...
Click to collapse
If your bootloader is locked then you can try using seus (dont use pc companion it always fails for me too) and dont panic its only soft brick and easily recoverable. By the way there is fix for hard brick too.
And if you are on unlocked bl then you cannot update using seus, flash ftf file via flashtool or use patch for it
Sent from my R800i using xda premium

trouble with xperia arc s
can anyone help me?
Tomorrow i updated my SonyEricsson Xperia Arc S with firmware LT18i_4.1.B.0.587_(1254-2716).ftf, after update via flashtool, i started process for getting root, and install CWM, that all will be ended fine. After that, i load my OS and start recover app and data with using Titanium Backup, i install all apps and recover data, then got message about low space on mobile storage and then my mobile started cycled reload. Just for stop that, i removed battery of my phone, and after it, my phone not loading, i hold power button and nothing to do.
How can i resolve that problem? plz help.
i alredy tryed remove battery for a 30 min, and then put mobile on charge without battary. nothing to happen
P.s.: sry for my English.

ruzerone said:
can anyone help me?
Tomorrow i updated my SonyEricsson Xperia Arc S with firmware LT18i_4.1.B.0.587_(1254-2716).ftf, after update via flashtool, i started process for getting root, and install CWM, that all will be ended fine. After that, i load my OS and start recover app and data with using Titanium Backup, i install all apps and recover data, then got message about low space on mobile storage and then my mobile started cycled reload. Just for stop that, i removed battery of my phone, and after it, my phone not loading, i hold power button and nothing to do.
How can i resolve that problem? plz help.
i alredy tryed remove battery for a 30 min, and then put mobile on charge without battary. nothing to happen
P.s.: sry for my English.
Click to expand...
Click to collapse
First of all flash the ftf file via flashtool again
And if that doesnt work then tell
Sent from my LT18i using xda app-developers app

Sahaab said:
First of all flash the ftf file via flashtool again
And if that doesnt work then tell
Sent from my LT18i using xda app-developers app
Click to expand...
Click to collapse
it's can't be done, caz my phone not goin in fastboot mode(no blue led active), and also if i trying to charge it, led not turnin on(no green light).
also have interested fact, if i connect m phone to PC, windows play sound like i connect device, no new dialog window for install drivers caz they already installed.
that window i see when tyed reinstall ftf firmware via flashtool imgur. com/TRFaePJ

ruzerone said:
it's can't be done, caz my phone not goin in fastboot mode(no blue led active), and also if i trying to charge it, led not turnin on(no green light).
also have interested fact, if i connect m phone to PC, windows play sound like i connect device, no new dialog window for install drivers caz they already installed.
that window i see when tyed reinstall ftf firmware via flashtool imgur. com/TRFaePJ
Click to expand...
Click to collapse
Did u shut down phone by taking out battery and then try to enter fastboot mode?
Sent from my LT18i

Sahaab said:
Did u shut down phone by taking out battery and then try to enter fastboot mode?
Sent from my LT18i
Click to expand...
Click to collapse
my phone not load if i push power button.
answer on ur question: yes, i tryed taking out battery and then try to enter to fastboot mode.

ruzerone said:
my phone not load if i push power button.
answer on ur question: yes, i tryed taking out battery and then try to enter to fastboot mode.
Click to expand...
Click to collapse
Was your bootloader unlocked?
Sent from my LT18i

Sahaab said:
Was your bootloader unlocked?
Sent from my LT18i
Click to expand...
Click to collapse
yes, it unlocked and i also installed on my phone CWM 5.0.2.7-nAa-r2.

ruzerone said:
yes, it unlocked and i also installed on my phone CWM 5.0.2.7-nAa-r2.
Click to expand...
Click to collapse
Then this may be a problem
I suggest someone with locked bootloader help you
But I read somewhere that u must uncheck FOTA in the options of what u wnt to flash
Im sorry I cannot be of more help as I do not know
Sent from my LT18i

Sahaab said:
Then this may be a problem
I suggest someone with locked bootloader help you
But I read somewhere that u must uncheck FOTA in the options of what u wnt to flash
Im sorry I cannot be of more help as I do not know
Sent from my LT18i
Click to expand...
Click to collapse
i wrong in one moment when answer.
if i connect my phone to PC, windows play sound "Error when connecting device"
xperia arc s

Can you get into flashmode (back button + USB, green LED)?
Sent from my X10i using xda premium

If you still have problems just use Sony Update Service to restore your phone.
僕のLT18iから送られてきた

tangosierra_ said:
Can you get into flashmode (back button + USB, green LED)?
Sent from my X10i using xda premium
Click to expand...
Click to collapse
nope, i can't nothing to happen if i try.
popthosegaskets said:
If you still have problems just use Sony Update Service to restore your phone.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
if i trying use SUS, it want a flashboot mode, but i can't bring my phone in that mode.

Unhappy Xperia Arc S won't start after updating to ICS
Did You selected to install fastboot, flashmode and Xperia Arc drivers in "Flashtool Drivers Setup"? (C:\Flashtool\drivers\Flashtool-drivers.exe)..I would suggest trying to reinstall your drivers by going to (C:\Flashtool\drivers\Flashtool-drivers.exe) running the exe file and make sure you scroll to the bottom of menu that appears and ticking fastboot,flashmode drivers, some people forget to do this and of course ticking Xperia Arc drivers..

tallman43 said:
Did You selected to install fastboot, flashmode and Xperia Arc drivers in "Flashtool Drivers Setup"? (C:\Flashtool\drivers\Flashtool-drivers.exe)..I would suggest trying to reinstall your drivers by going to (C:\Flashtool\drivers\Flashtool-drivers.exe) running the exe file and make sure you scroll to the bottom of menu that appears and ticking fastboot,flashmode drivers, some people forget to do this and of course ticking Xperia Arc drivers..
Click to expand...
Click to collapse
so, early i was installed drivers for xperia, but i have time ago error with driver "QHSUSB_DLOAD" when connecting phone after my last succefull update firmware, i look for additional driver and solved the proplem, down below log from "system Event Viewer" about last updating and installing new drivers.
Driver Management concluded the process to install driver FileRepository\zeus.inf_amd64_neutral_f430e362a51888ef\zeus.inf for Device Instance ID USB\VID_05C6&PID_9008\5&27095923&0&1 with the following status: 0x0.
------------
Driver Management has concluded the process to add Service ggflt for Device Instance ID USB\VID_05C6&PID_9008\5&27095923&0&1 with the following status: 0.
------------
A service was installed in the system.
Service Name: SEMC USB Flash Driver Filter
Service File Name: system32\DRIVERS\ggflt.sys
Service Type: kernel mode driver
Service Start Type: demand start
------------
Driver Management has concluded the process to add Service ggsemc for Device Instance ID USB\VID_05C6&PID_9008\5&27095923&0&1 with the following status: 0.
------------
A service was installed in the system.
Service Name: SEMC USB Flash Driver
Service File Name: system32\DRIVERS\ggsemc.sys
Service Type: kernel mode driver
Service Start Type: demand start
Service Account:
------------
Driver Management concluded the process to install driver FileRepository\volsnap.inf_amd64_neutral_7499a4fac85b39fc\volsnap.inf for Device Instance ID STORAGE\VOLUMESNAPSHOT\HARDDISKVOLUMESNAPSHOT28 with the following status: 0x0.
------------
Driver Management concluded the process to install driver FileRepository\volsnap.inf_amd64_neutral_7499a4fac85b39fc\volsnap.inf for Device Instance ID STORAGE\VOLUMESNAPSHOT\HARDDISKVOLUMESNAPSHOT27 with the following status: 0x0.
------------
Driver Management concluded the process to install driver FileRepository\volsnap.inf_amd64_neutral_7499a4fac85b39fc\volsnap.inf for Device Instance ID STORAGE\VOLUMESNAPSHOT\HARDDISKVOLUMESNAPSHOT26 with the following status: 0x0.
Click to expand...
Click to collapse
So now if i connect my Xperia Arc S to computer, i don't hear sound what's mean "Error when connecting device" for a now, it's play correct sound, like device spoted normaly without errors, but my phone anyway can't enter to flash mode for reinstalling FIRMWARE, today i also charged battery without phone, by using portable doc station for battary.
additional info: my phone not turning LED like green when charging or BLUE when i try bring phone to flash mode.
What i can do for resolving problem, i mean, all problems started after my restoring backuped programs and earn 0 space on local phone storage. And after cycling rebooting my phone, before i removed battery.
ty for advice.

Bricked ION.... need help

So, i have update my ion to ICS LT28h, my wife's ion we waited for the official AT&T update. I downloaded PC Companion, connected the phone, started the update process. I did all i was told on every screen. the phone never updated and now does not power on. no lights when plugged in to charge or connect.
help?

Wrong Section
wrong section
1) hold the power + volume down for like 15 secs...(untill you feel a vibrate)
2) download flashtool at http://androxyde.github.com/
-----Install
3) download whatever FTF you want at http://forum.xda-developers.com/showthread.php?t=1752345
----move it to C:\Flashtool\firmwares
make sure drivers are installed(find them in C:\Flashtool\drivers
4) Launch Flashtool
5)select the thunderbold
----select the ftf
6)insert the micro usb end into phone (leaving the regular usb out of computer)
----it will tell you some instructions on how to flash but they are for different xperia phone
7) while holding the volume down button while the phone is off (From step 1)
insert REGULAR usb into computer
it should say flashing, or your comp might say installing driver, or it might just say drivers not installed..
ONLY IF YOU CHOOSE TO INSTALL LT28H FTF--------------repeat this step but now install the file from (FOR LTE)
-----------------http://forum.xda-developers.com/showthread.php?t=1815636&highlight=lte
--------------------(just scroll down) (was too lazy to give dl link) XD
8) if it works, thank me XD

trf000 said:
So, i have update my ion to ICS LT28h, my wife's ion we waited for the official AT&T update. I downloaded PC Companion, connected the phone, started the update process. I did all i was told on every screen. the phone never updated and now does not power on. no lights when plugged in to charge or connect.
help?
Click to expand...
Click to collapse
If it is an AT&T phone do you really want to update to LT28h?

why not install lt28h
all you have to do is just flash the extra ftf
and then just change the APN
which i as well as spectre have posted
http://forum.xda-developers.com/showthread.php?t=1770813

The att version works fine has root and cwm
Sent from my LT28at using xda premium

424aca said:
why not install lt28h
all you have to do is just flash the extra ftf
and then just change the APN
which i as well as spectre have posted
http://forum.xda-developers.com/showthread.php?t=1770813
Click to expand...
Click to collapse
No reason to use the LT28h anymore since the LT28i and LT28at both have ICS and root.

In hope that someone's still looking at this thread, here is my situation: I tried flashing a prerooted image via fastboot and landed in a Sony bootloop. Then somehow I was stuck in fastboot-mode (led: static blue) and let the phone drain its battery. Now I'm able to get into flashmode but when flashing the chinese FTF with the Flashtool it stops at 1% with status "Processing .......sin" (sorry don't know the file exactly).
When I'm trying to power it up now the Sony logo comes up followed by an exclamation mark in a triangle... could you tell me what options there are left? I saw these prerooted images (http://forum.xda-developers.com/showthread.php?t=1669906), but there is none for the Ion, so I don't know what could be the next step. If I just had back my normal system... I used to flash my Galaxy S many times so I'm not that unexperienced, but it seems I really have a problem here:crying:
Any help is appreciated!

Ruler85 said:
In hope that someone's still looking at this thread, here is my situation: I tried flashing a prerooted image via fastboot and landed in a Sony bootloop. Then somehow I was stuck in fastboot-mode (led: static blue) and let the phone drain its battery. Now I'm able to get into flashmode but when flashing the chinese FTF with the Flashtool it stops at 1% with status "Processing .......sin" (sorry don't know the file exactly).
When I'm trying to power it up now the Sony logo comes up followed by an exclamation mark in a triangle... could you tell me what options there are left? I saw these prerooted images (http://forum.xda-developers.com/showthread.php?t=1669906), but there is none for the Ion, so I don't know what could be the next step. If I just had back my normal system... I used to flash my Galaxy S many times so I'm not that unexperienced, but it seems I really have a problem here:crying:
Any help is appreciated!
Click to expand...
Click to collapse
What model are you working with? And where did you get this prerooted image (the one you tried to flash)? From the link you posted I don't see one for the ion. Anyway, based on my own soft brick experience, you'll prolly need to let the phone battery drain, then charge (process can take a day or so), then try and flash your stock FTF via Flashtool.

Ruler85 said:
In hope that someone's still looking at this thread, here is my situation: I tried flashing a prerooted image via fastboot and landed in a Sony bootloop. Then somehow I was stuck in fastboot-mode (led: static blue) and let the phone drain its battery. Now I'm able to get into flashmode but when flashing the chinese FTF with the Flashtool it stops at 1% with status "Processing .......sin" (sorry don't know the file exactly).
When I'm trying to power it up now the Sony logo comes up followed by an exclamation mark in a triangle... could you tell me what options there are left? I saw these prerooted images (http://forum.xda-developers.com/showthread.php?t=1669906), but there is none for the Ion, so I don't know what could be the next step. If I just had back my normal system... I used to flash my Galaxy S many times so I'm not that unexperienced, but it seems I really have a problem here:crying:
Any help is appreciated!
Click to expand...
Click to collapse
Try using SUS to do a repair of the phone.

Ruler85 said:
In hope that someone's still looking at this thread.
Any help is appreciated!
Click to expand...
Click to collapse
I have had the 1% happen to me. I just unplug phone close and reopen flashtool and try again. Took me 3 times to get to flash once.
If still no luck, like spectre51 said use repair option in pc companion.
If all else fails use this thread
http://forum.xda-developers.com/showthread.php?t=1849170
Sent from my LT28i using xda app-developers app

ToledoJab said:
I have had the 1% happen to me. I just unplug phone close and reopen flashtool and try again. Took me 3 times to get to flash once.
If still no luck, like spectre51 said use repair option in pc companion.
If all else fails use this thread
http://forum.xda-developers.com/showthread.php?t=1849170
Sent from my LT28i using xda app-developers app
Click to expand...
Click to collapse
Thx for your hints! It is kinda frustrating to wait until it is fully loaded, then try flashing, then load and wait again... but the 1%-bug seemed to be a major bug as it is fixed now in the new version 0.9.8 of the flashtool.IGonna tray again tomorrow and report my status. I already checked popfan's thread to get a point if mydevice really is bricked or not. So again thanks to all of you!
Just out of curiosity: is there a possibility to flash a prerooted ftf-file? I live in Switzerland where I bought the lt28h version. And I haven't found a prerooted. img file for flashing via fastboot. Just want to root it, custom roms etc. later

Alright, I was able to flash the chinese FTF and got my phone back working:laugh:
But I had to install the newest version 0.9.8 of the flashtool to not get the 1%-bug again. After this roooting via bin4ry's script worked well and now I'm happy happy happy. Thank you all!

I also had problems with flashtool 9.7. I used 9.0 with no problems. Didn't know about 9.8.
Sent from my LT28at using XDA

as the OP of this thread, thought i'd update. After reading a few threads i discovered the power/volume button trick. tried volume down with no luck, but power and volume up worked. PC Companion did not work in upgrading the phone. just kept telling me to disconnect my battery, and that if the batter cannot be disconnected to skip that step. But it wouldn't go to the next step. So I tried SUS. Worked perfectly.
So, My phone is running lt28h and my wife is on lt28at. There are some differences in the way data is downloaded. looking at my AT&T bill, the data downloads, i assume for apps that get updated, seem to be different sources. also my phone has significantly larger downloads even though we have similar apps. I do have a couple of weather apps she doesn't have that might be responsible for that.
I'd like to do some additional comparisons, but think i'll be flashing the AT&T rom on my phone soon.

[Q] Xperia Arc won't boot after CWM crash

I am new at all this stuff but i think I'm starting to somehow get a hang of it. I rooted my phone this week running .587 by downgrading the kernel etc, you know. Today I wanted to try another rom so I followed this guide: http://forum.xda-developers.com/showthread.php?t=1955248 To install Xperia Ultimate HD on my phone with a locked bootloader.
However during step 8 CWM shut down and started to boot. But it doesn't start and I'm unable to get back into CWM My computer won't recognise the phone so I can't flash the kernel or do a complete reset using SUS. What do I do? is it save:able?

Been doing flashtool ftf recoveries whenever this occured. Do not power on arc s with it stuck. let flashtool self boot to flash mode and you will be back in buisness again.
Sent from my GT-P6800 using xda app-developers app

if you could tell me what to do a bit more precise I'd really love you! like a small guide

I assumed you have flashtool since you mention about kernel downgrade. if no get it installed
the step actually same as flashing the kernel with phone power off.
reference link to a online guide
http://www.thespicygadgematics.com/2012/06/how-to-fix-bricked-sony-xperia-android.html
Sent from my GT-P6800 using xda app-developers app

Sparfen said:
if you could tell me what to do a bit more precise I'd really love you! like a small guide
Click to expand...
Click to collapse
1. Flash ready to rood ics 562 with flashtool. Here's a youtube tutorial.
2. Root your phone
3. get cwm and follow these steps to install custom rom with locked bootloader
make sure in cwm before installation
1. Wipe data/factory reset
2. wipe cache partition
3. go to mounts and storage menu and\
4. format /system
5. format/data
6. format cache
7. exit mounts and storage menu
6. go to advance
7. wipe dalvik cache
8. wipe battery stats
9. exit advance
10. install custom rom from sd card without rebooting
works every time for me

TRY THIS!
Sparfen said:
I am new at all this stuff but i think I'm starting to somehow get a hang of it. I rooted my phone this week running .587 by downgrading the kernel etc, you know. Today I wanted to try another rom so I followed this guide: http://forum.xda-developers.com/showthread.php?t=1955248 To install Xperia Ultimate HD on my phone with a locked bootloader.
However during step 8 CWM shut down and started to boot. But it doesn't start and I'm unable to get back into CWM My computer won't recognise the phone so I can't flash the kernel or do a complete reset using SUS. What do I do? is it save:able?
Click to expand...
Click to collapse
ok first since ur stuck flash back to stock using flash tools n then follow the procedure.. i had a similar problem n i fixed it.. it was a very simple prob.. for installing these custom roms u ve to format system/ , so if ur using the cwm app by pvyparts ul loose the cwm after wiping it.. all u ve to do is after flashing the custom rom ul ve to install CWM back (use cwm version 5 available in the thread by pvyparts.. not the latest one..)
here's the thread for CWM
n post back if it works..

Thanks guys, really appreciate it, will try these methods out.

Still won't work
I tried doing all the different things you said but the phone won't boot holding in the back button and inserting the datacable. The light on the side turns green but nothing else happens.

Sparfen said:
I tried doing all the different things you said but the phone won't boot holding in the back button and inserting the datacable. The light on the side turns green but nothing else happens.
Click to expand...
Click to collapse
Mate, press the back button while you connect to PC and flashtool will show "device connected in flashmode" than select a firmware to FLASH and FLASH it. After the process is done disconnect and power it on... =)

jader13254 said:
Mate, press the back button while you connect to PC and flashtool will show "device connected in flashmode" than select a firmware to FLASH and FLASH it. After the process is done disconnect and power it on... =)
Click to expand...
Click to collapse
Yeah, that I know and that's what I'm doing. When I hold down the back key and connect to the pc all that happens is that the green led lights up. Flashtool won't recognise it and it still says that I should hold down the back key and then connect to the PC...

http://forum.xda-developers.com/showthread.php?t=1126358

XperienceD said:
http://forum.xda-developers.com/showthread.php?t=1126358
Click to expand...
Click to collapse
Thanks but flashtool won't recognise it and i have a locked bootloader.

Sparfen said:
I am new at all this stuff but i think I'm starting to somehow get a hang of it. I rooted my phone this week running .587 by downgrading the kernel etc, you know. Today I wanted to try another rom so I followed this guide: http://forum.xda-developers.com/showthread.php?t=1955248 To install Xperia Ultimate HD on my phone with a locked bootloader.
However during step 8 CWM shut down and started to boot. But it doesn't start and I'm unable to get back into CWM My computer won't recognise the phone so I can't flash the kernel or do a complete reset using SUS. What do I do? is it save:able?
Click to expand...
Click to collapse
This happened to me once, if i remember right, i've used the repair phone option in sus ( since my phone cannot be recognized i did the click your phone option) it did not repair my phone since sus said i have the latest version installed BUT then i pulled out my battery, reinsert it; open flashtoool, clicked flashmode and entered it successfully

Sparfen said:
Thanks but flashtool won't recognise it and i have a locked bootloader.
Click to expand...
Click to collapse
Odd, because flashtool skills recognise it. Try pulling out the battery and reinserting it and connecting
Sent from Xperia Arc S

THANK YOU!
jman2131 said:
Odd, because flashtool skills recognise it. Try pulling out the battery and reinserting it and connecting
Sent from Xperia Arc S
Click to expand...
Click to collapse
OMG! I pulled out the battery and left it out for a while and then flashtool noticed it and i was able to flash in a generic rom! Thank you!

Which rom u flashed??
Sparfen said:
OMG! I pulled out the battery and left it out for a while and then flashtool noticed it and i was able to flash in a generic rom! Thank you!
Click to expand...
Click to collapse
I was also stuck at Sony logo and it reboots every time just after sony logo. Then i used flashtool, flashed using "LT15i_4.1.B.0.587_Kernel.ftf".....
Now it boot further, but only to XPERIA logo, and then reboots....but certain times i have seen it getting past the logo, like it shows a display asking for pc companion, even the taskbar too with time and blutooth icon on it....but all of a sudden it reboots. i have tried rebooting more than a 100 times, while taking out battery everytime.
Also, I'm not able to get into recovery mode. I tried this using the combination of power on, and when sony logo appears, pressing and releasing volume down repeatedly. I hope i'm doing right.
So what should I do?? am not able to use this phone for a week...
Please help me out.
Ok got it working. I just unlocked the boot loader from sony bootloader site(sorry couldn't post the link, because of low post count)
So, it booted up but show error as soon as put a sim, that "Unfortunately keypad has stopped working".
I figured out the culprit, it is the build version with i flash it. I reflashed it with LT15i_4.1.B.0.431_kernel.ftf, now it working fine like a charm.
So much relief...!!
Hope this may help someone too...so i shared!!!

[Root][4.4.3 Update 2][LB/UB][Dual SIM]

ok in the new update every thing wod be the same just use new kernal in place of 4.4.3 kernal from zip
Download new kernal here (From Second Update)http://d-h.st/mxn
if any one doesnt succeed plz do back up and after that do a clean install of new update
then after try this method
it will work
have fun !!!!​
thanks to @aliaz
Something that might help others.
Updated phone to new update.
Started rooting as per guide on page1.
After flashing 4.4.2, easy root failed to root the device.
Multiple attempts but no success.
Flashed 4.4.3 update and booted system. Realised I has Super User already installed. Uninstalled SU.
Flashed 4.4.2 again and this time easy root rooted the phone.
Flashed 4.4.3 and bingo! SU was installed, updated binaries and phone is now rooted.
Hi all
i have seen many posts where people are searching for root but not finding proper end.
i am a noob so i will try and make this as simple as possible.
first just relax and follow this simple steps its very very very easy
what you need
complete data back up
Flash tool download here : https://unrestrict.li/flashtool
if you face any issue over there then you can download it via torrent
link is http://kickass.to/usearch/flashtool-0.9.18.2-windows.exe/
Require files here http://d-h.st/iXN
easy root tool kit here http://forum.xda-developers.com/showthread.php?t=2784900
a cup of coffee
at least 50% battery charged phone
USB debugging mode enabled on 4.4.3 firmware as we will need it so do it first then go ahead
now follow this easy steps
1. install flash tool in C drive
2. extract downloaded rar in to C:\Flashtool\firmwares
3. turn off phone and press vol - (down) key and connect phone to pc wait till pc complete to install req, drivers as soon as its done disconnect your phone
4. now open flash tool and hit flash button and select 4.4.2.ftf press ok and wait for notification which says connect phone
5. now as soon as you get notification press vol -(down) key and connect phone and wait till flash completes
6. now disconnect your phone, close flash tool
7. turn on phone there wod be nothing will stuck at blank screen dont warry reonnect your phone to pc
8. now open easy root tool kit,and hit install.bat root your phone if stuck at any place close window again hit install.bat, disconnect phone when you see phone is rooted
9.now read this carefully
your phone is rooted but to flash 4.4.3 kernal back we beed to turn off the phone as we have to connect phone in flash mode to flash ftf 4.4.3
so to turn off phone in this condition(bank screen) follow this trick
press vol +(UP) and power together and wait
1st you will fell single vibret keep holding after some few sec you will fell three times vibration now release the keys as your phone is turned off.
10. now open flash tool now again hit flash button and this time select 4.4.3.ftf press ok and connect your phone when it says to connect by pressing vol - (down) key on phone.
11. as soon as its done disconnect your phone and turn it on
12. now install supersu and hit update binary
13. TADAAAA you have rooted phone
hope this helped you
if you face any challenge plz plz plz report back
thank you..

Dual Recovery
Almost forgot
after you root to have recovery go to this thread
http://forum.xda-developers.com/t2-ultra/development/t2-ultra-xzdualrecovery-qa-t2823793
a good news that touch bug has been gone in recovery
thanks sony for updating touch drivers
thank you

is my guide so much noob frankly that every one succeed
or its too bad that no one is understanding
64 views till now
no feedback
is every think ok out there ???

thanks for sharing this, it works as I did the most same way except making everything packed greatly as what you have done
the best of this was you made all files in one, extremely good for ones do not have 4.4.2 and 4.4.3 ftf files in hands
I guess most of guys do not want to try flash-power off-flash...

Maybe what you mean is only kernel,not the entire ftf file,right?

Chena_22 said:
Maybe what you mean is only kernel,not the entire ftf file,right?
Click to expand...
Click to collapse
what???

chauhanjayc said:
what???
Click to expand...
Click to collapse
At step 4 you only flash the 4.4.2 kernel, (deselect everything else) not the entire .ftf or you'll end up with 4.4.2 on your phone. Similarly, at step 10 you only need to flash the 4.4.3 kernel, not the entire image.
You forgot to mention that an unlocked bootloader is required to use flashtool.
developer.sonymobile.com/unlockbootloader
Also, if you unlock bootloader you lose warranty so backup TA partition before you proceed to keep warranty.

Well written guide. Success here. Rooted now.

Rajiv Patki said:
At step 4 you only flash the 4.4.2 kernel, (deselect everything else) not the entire .ftf or you'll end up with 4.4.2 on your phone. Similarly, at step 10 you only need to flash the 4.4.3 kernel, not the entire image.
You forgot to mention that an unlocked bootloader is required to use flashtool.
developer.sonymobile.com/unlockbootloader
Also, if you unlock bootloader you lose warranty so backup TA partition before you proceed to keep warranty.
Click to expand...
Click to collapse
HI RAJIV
failed to understand what you are trying to explain but i can say
i have made 4.4.2 and 4.4.3 kernal ftf so there is nothing to select or deselect
+
here i haven't explained abt unlocking bootloader so there is no need to worn abt DRM key
correct me if i am wrong in any line above
thank you

aliaz said:
Well written guide. Success here. Rooted now.
Click to expand...
Click to collapse
glad to here that
have fun

Hey
Thanx for f guide.
Will flash this tomorrow and report as i cant do it today coz of maths exam.
Sent from my D5322 using XDA Free mobile app

max.kaushik said:
Hey
Thanx for f guide.
Will flash this tomorrow and report as i cant do it today coz of maths exam.
Sent from my D5322 using XDA Free mobile app
Click to expand...
Click to collapse
best of luck for maths exams

chauhanjayc said:
HI RAJIV
here i haven't explained abt unlocking bootloader so there is no need to worn abt DRM key
Click to expand...
Click to collapse
Without unlocking your bootloader you cannot use flashtool, I suppose.

Rajiv Patki said:
Without unlocking your bootloader you cannot use flashtool, I suppose.
Click to expand...
Click to collapse
i have locked bootloader bro
i do love bravia engine and other sony stuffs :victory:
let me tell you one simple thing in one line
if you wona flash a custom kernal you need unlocked bootloader other then that you can do any thing with locked bootloader
like rooting
flashing custom rom
flashing mod
changing system partition
and a lot more

chauhanjayc said:
i have locked bootloader bro
i do love bravia engine and other sony stuffs :victory:
let me tell you one simple thing in one line
if you wona flash a custom kernal you need unlocked bootloader other then that you can do any thing with locked bootloader
like rooting
flashing custom rom
flashing mod
changing system partition
and a lot more
Click to expand...
Click to collapse
:laugh:

chauhanjayc said:
what???
Click to expand...
Click to collapse
At the 4 step,you say 4.4.2.ftf,so i suggest you to change it to 4.4.2 kernel..so,maybe there is no missunderstanding for noob users...

Hi Chauhanjayc
Thanks for your effort. I am new at flashtool, please help.
in your steps,
3. turn off phone and press vol - (down) key and connect phone to pc wait till pc complete to install req, drivers as soon as its done disconnect your phone
What I did:
1. I turned off the phone.
2. I held down vol- key and connect phone to PC using the USB cable.
3. Nothing happen.
What have I done wrong?
I have Sony PC Companion, Flashtool installed. Please kindly explain. Thanks.

jychow74 said:
Hi Chauhanjayc
Thanks for your effort. I am new at flashtool, please help.
in your steps,
3. turn off phone and press vol - (down) key and connect phone to pc wait till pc complete to install req, drivers as soon as its done disconnect your phone
What I did:
1. I turned off the phone.
2. I held down vol- key and connect phone to PC using the USB cable.
3. Nothing happen.
What have I done wrong?
I have Sony PC Companion, Flashtool installed. Please kindly explain. Thanks.
Click to expand...
Click to collapse
you need to manually install flash drivers
to do so open flash tool folder in C drive and there wod be a folder named drivers open and install our device drivers

chauhanjayc said:
Hi all
i have seen many posts where people are searching for root but not finding proper end.
i am a noob so i will try and make this as simple as possible.
first just relax and follow this simple steps its very very very easy
what you need
complete data back up
Flash tool download here : https://unrestrict.li/flashtool
Require files here http://d-h.st/iXN
easy root tool kit here http://forum.xda-developers.com/showthread.php?t=2784900
a cup of coffee
at least 50% battery charged phone
USB debugging mode enabled on 4.4.3 firmware as we will need it so do it first then go ahead
now follow this easy steps
1. install flash tool in C drive
2. extract downloaded rar in to C:\Flashtool\firmwares
3. turn off phone and press vol - (down) key and connect phone to pc wait till pc complete to install req, drivers as soon as its done disconnect your phone
4. now open flash tool and hit flash button and select 4.4.2.ftf press ok and wait for notification which says connect phone
5. now as soon as you get notification press vol -(down) key and connect phone and wait till flash completes
6. now disconnect your phone, close flash tool
7. turn on phone there wod be nothing will stuck at blank screen dont warry reonnect your phone to pc
8. now open easy root tool kit,and hit install.bat root your phone if stuck at any place close window again hit install.bat, disconnect phone when you see phone is rooted
9.now read this carefully
your phone is rooted but to flash 4.4.3 kernal back we beed to turn off the phone as we have to connect phone in flash mode to flash ftf 4.4.3
so to turn off phone in this condition(bank screen) follow this trick
press vol +(UP) and power together and wait
1st you will fell single vibret keep holding after some few sec you will fell three times vibration now release the keys as your phone is turned off.
10. now open flash tool now again hit flash button and this time select 4.4.3.ftf press ok and connect your phone when it says to connect by pressing vol - (down) key on phone.
11. as soon as its done disconnect your phone and turn it on
12. now install supersu and hit update binary
13. TADAAAA you have rooted phone
hope this helped you
if you face any challenge plz plz plz report back
thank you..
Click to expand...
Click to collapse
instalation of supersu failed to update binaries

Which phone u r using
T2 ultra
Or
T2 Ultra dual

Xperia M stuck on Sony logo

Hey guys , my xperia m ( single sim ) is stuck on the sony logo whenever i try to boot it up.
I rooted my phone many months and it was perfect till this morning and then suddenly it got stuck at the sony logo.
Ive tried to fix it via the pc companion but it doesnt detect it . Now the battery has also run out so when i try to charge it , it shows the led for charging but then the sony logo comes up on its on and stays stuck there. Please help =(

That is a simple soft-brick/bootloop (depending on who you ask, I'd say bootloop).
Charge the phone for a couple of hours and then flash stock firmware with flashtool. To do this you will need to download the stock firmware ftf (these can ALL be found in the general section, don't ask for links) and also flashtool (http://www.flashtool.net/downloads.php). Move the ftf to the firmware folder to where you extracted flashtool to (the C: is the best bet).
Once you have both of those things and your phone has charge in it open flashtool. Then click on the lightning bolt icon and then flashmode. Select the firmware you have downloaded.
UNTICK Wipe cache and data.
Click flash.
Wait for flashtool to tell you to connect your phone in flashmode (do this by holding volume down (I think) while the phone is off and you are connecting the USB cable).
Wait for the firmware to finish flashing.
If you get an error saying that loader.sin has finished processing with errors open the ftf with WinRar (or something similar) and delete the loader.sin file and make sure that you save the changes to the ftf.
If you are still stuck on the Sony logo after flashing, remove your battery and then put it back in and try to turn on the device again. If you are still stuck on the Sony logo after that you will have to wipe the cache and data with flashtool.

Try sony pc companian support
Sent from my C2305 using XDA Free mobile app

I read about the flashing thing on other sites aswell but what i was worried about was the fact that since pc companion isnt dectecting my phone will the flash be able to go through considering the fact that since pc companion isnt dectecting it even the flash tool might not?

optimusbanana said:
I read about the flashing thing on other sites aswell but what i was worried about was the fact that since pc companion isnt dectecting my phone will the flash be able to go through considering the fact that since pc companion isnt dectecting it even the flash tool might not?
Click to expand...
Click to collapse
Flashtool will definitely detect it, don't worry. PC Companion needs the phone to actually be booted to be able to detect it, whereas flashtool only needs the phone to be in either fastboot mode or flash mode to detect it. Both of these modes are initiated by the user when they are plugging in the USB cable and holding the respective volume button and the phone is off.

gamer649 said:
Flashtool will definitely detect it, don't worry. PC Companion needs the phone to actually be booted to be able to detect it, whereas flashtool only needs the phone to be in either fastboot mode or flash mode to detect it. Both of these modes are initiated by the user when they are plugging in the USB cable and holding the respective volume button and the phone is off.
Click to expand...
Click to collapse
Thank you for helping me just btw
I know this'll annoy you a bit but the version that i have to flash it with is the stock one? Because i searched on the internet and some are with the 4.3 one and some are 4.2.2 so im a bit confused. Sorry im kind of a noob at this T_T

And flashtool first says that my phone is connected with usb debugging on then says phone is disconnected when its not :/

optimusbanana said:
Thank you for helping me just btw
I know this'll annoy you a bit but the version that i have to flash it with is the stock one? Because i searched on the internet and some are with the 4.3 one and some are 4.2.2 so im a bit confused. Sorry im kind of a noob at this T_T
Click to expand...
Click to collapse
Any stock firmware to the device will work, so it can be any of the 4.1.2 variants or and of the 4.3 variants (4.2 is for dual SIM). And don't worry about being a noob, all of us were at one point or another.
optimusbanana said:
And flashtool first says that my phone is connected with usb debugging on then says phone is disconnected when its not :/
Click to expand...
Click to collapse
When you are flashing a firmware be sure to keep the cable firmly connected throughout the entire process (use a different cable if the one you already have is a bit loose) and don't mess with the phone at all. Can you post the whole log you got from flashtool? Either in text form or through a screenshot?