yashsingh1/xdaforums huggingface dataset:
[Sony Cross-Device General] jtr165:
is the phone on or off when this happens? If its off, its probably a corrupted kernel to some degree...if it does it while booted up, it might a bug in the rom, or a hardware problem...

you can try a repair through pcc...or if its problematic when off, simply reflash only the kernel from whatever firmware you are currently using...you won't lose any data doing that...

does the phone function normally otherwise?

to the TS: great tutorial, thanks! I've been having a gps bug that causes the phone to freeze and reboot lately, trying all kinds of different things (supercharger after root/cwm installation, autokiller, etc...some sort of work, but nothing has fully fixed it yet)...after probably the 100th freeze and reboot while searching for gps lately, i got impatient, wasn't thinking and did a hard reset while the screen was hanging...oops...No LED, buttons did nothing, no response whatsoever...was pretty sure that was that, as i hadn't read deeply into this enough...

I read this...put the phone on the charger overnight...and woke up this morning to a solid red LED...followed steps, DID NOT try boot the phone...didn't bother with trying to get into a boot loop, or soft reset or anything...just flashed only the kernel from the firmware i was running...went off in seconds...phone booted like it never happened...

I'm now wiping and clearing the entire phone and NOT going to restore anything...just starting over...hope that helps the gps issue...but at least i have a working phone again...and I only lost it for about 12 hours...
[Sony Cross-Device General] iSpx:
OH MY GOD MY Phone is back to life

thank you all for share your experiences

:victory::victory::victory::victory:
[Sony Cross-Device General] BaltazarIX:
oh GOD! i want to say BIG THANK YOU!!!

just small quote which revived my device:
[Sony Cross-Device General] jtr165:
EDIT: sorry, read your video in the description, so it won't even turn on? Do you get any LED blinking or solid color of any kind? You may have to let the battery drain before you can get into flash mode...

Flashing kernels is very simple with flashtool...but you have to be positive you are using the same kernel version as the rom...so what ever firmware you're running (JB .211 is the latest Ion firmware entirely), just be sure and flash the kernel embedded in that specific .ftf file...

I'm fairly sure you just have a bugged kernel to some degree...but would need more info to go from there...follow the steps on the first page of this thread for flashing...with boot loops, which you seem to sort of have, do the rubber band trick (more info on first page also), which will help kick off the flash at the right time...
[Sony Cross-Device General] kilouhm:
i have unlocked bootloader

miui rom based on cm

the phone was working good but yesterday i forgot to charge the phone

and it is shutdown

today when i connect my phone to charger the led is lighting red but i cant turn on the phone ..... even i cant do reset or connect in flashmode or fastboot

the phone do random boot after that it is show me zero battery and shutdown

what to do ?????
[Sony Cross-Device General] mirhl:
you need to be ready to flash stock kernel, as soon as the red light turn off
[Sony Cross-Device General] kilouhm:
problem solved ....with restore
[Sony Cross-Device General] cgbeats:
My phone just ran crazy and acting weird, so I've decided to restart the phone. It shuted down and never woke up. The led doesn't work and the screen neither. I've had CM 10 installed. When I conect it to my pc, it doesn't recognize it anymore. I've tried any combo button. The phone is dead, no led light, no screen light. The flashtool doesn't shows any responses. When I flash the .ftf, I wait the window with the flf loading complete to pop up, and then i connect my phone in flashmod. The only response I get is from windows telling me he don't recognise this device. I had it charging for 12h and still nothing. Any chance of revival?

EDIT : My bootloader is open, and my phone is Xperia J
[Sony Cross-Device General] casouzaj:
I had the same problem, at the end of June. It got stuck in a screen for minutes. I removed and reinserted the battery. Nothing came alive, at all! My XJ got competely dead! After trying all sorts of tricks I know, to no avail, I sent it to a Sony service center here in Brazil by July, 2. It never came back from service. Sony said it will return my money, because they argued they didn't have a similar or better spec'ed phone for replacement at store. It seems that the XJ is pretty buggy, then. Shame on them!
[Sony Cross-Device General] cgbeats:
Dafuq? I bought the device from my phone company, and I realy don't know what are they going to do with it, or if they can find that the phone was rooted, custom rom and bootlocker unlocked. I'll cross my fingers, but I'm still tring to revive it by keeping it charging.
[Sony Cross-Device General] cgbeats:
Any help please? The only response I get from my phone is a very little heat, from charging, but no signals of life, not even the red led.
[Sony Cross-Device General] allendelucas:
Hello.

My xperia j told me there is an update to version 11.2.a.0.31 and gave update.

Now the problem is that since that time I have no 3g signal (wcdma). only works with GSM and the speed is very slow.

I restored bootloader and use pc companion to repair it, but wcdma keep wrong.

Don´t know if it change something from the original baseband, does anyone have any recommendations?

Thank you.

http://xdaforums.com/showthread.php?t=2396895

You are my last hope.
[Sony Cross-Device General] picnik99:
Hi everyone, I just recently tried to flash my Xperia Ion LT28AT to the LT28i firmware and ended up bricking my phone. I followed the tutorial at the beginning of this thread by the OP and got to the part where I held down the power and volume up button at the same time, problem was.. I forgot how long I held it down for and now my phone doesn't have a light, the screen won't turn on, and there seem to be no sign of life coming from it. I did read somewhere along the posts here that it might take days for the whole battery to discharge and that I will get a red light when it's completely discharged. Please help with inputs on this matter, thanks!

**Edit: I got my phone to come back to life!! What I did was plug the phone into the wall charger and immediately there was a solid red light, I left it charging for about 5 hours and then the light turned into a solid green. After the light turned green I prepared the LT28h Jelly Bean firmware and flashed it without checking or unchecking any options. Then after the firmware finished flashing, I then flashed it again but this time with he LT28i stock firmware and I unchecked wipe data/wipe cache/wipe apps log, I also excluded everything except for the baseband and voila! my LT28AT is now an LT28h with the Jelly Bean upgrade :D

Thank you so much for this thread and all the inputs that you guys have posted, I hope my experience will help someone solve headache as much as these kind folks have helped mine. Cheers! :)
[Sony Cross-Device General] light19940120:
Hy.

My xperia Ion again dead.

I just turn off with shutdown from rom, and dont turn on or don't charge. Nothing do it.

Can i restore it?
[Sony Cross-Device General] mirhl:
use flashtool

flash stock rom

and you are done
[Sony Cross-Device General] jbrewer531:
Phone fixed

Hey just wanted to say thanks to the OP for this thread. I got the issue this weekend and was able to fix it with the help of this thread.
[Sony Cross-Device General] light19940120:
Yes, but i don't have flash mode.

When i connect the phone it don't do anything.
[Sony Cross-Device General] $amuel:
Thanks man, I love you :D

it worked perfectly after trying 3 hours to unbrick my phone with other instructions...

but finally I found this and I'm soooo happy!

thanks a lot man! ;):D
[Sony Cross-Device General] mirhl:
press volume down while connecting
[Sony Cross-Device General] light19940120:
Yes i know :)

But it solved.
[Sony Cross-Device General] Hubriss:
Hi,

I have a semi-bricked Xperia Z( I know it's not a 2012 Xperia but I have tried the Xperia Z forum but no luck with my problem)

I say semi-bricked bcoz it boots itself after every 3 minutes or so.

I have flashed all variants of stock firmwares but the problem persists.

It started after a new firmware update.Not immediately but after 2 days of usage.It started exactly when I tried turning on the wi-fi.

It rebooted & has been rebooting ever since(10 days complete now...yippeee! :D )

One noticeable thing when I'm able to access the settings is that IMEI & Baseband are shown as "UNKNOWN"

Any help will be appreciated.

Thank you in advance.
[Sony Cross-Device General] mirhl:
did you wiped your data?

Have you excluded something?

Did you use the last versino of flashtool?
[Sony Cross-Device General] barrel23:
Phone wont boot.

hello. I owned an unlocked bootloader XS phone. Just now, I flashed the latest FW which was released yesterday.

then I followed doomlord's step to root it ---> http://xdaforums.com/showthread.php?t=2417672

firstly, I flashed the .96 fw. then booted it.

later, I followed the post's step no 2 which is flashing .211 kernel to enable rooting.

i received an error from flashtool which it couldnt flash the kernel

then i tried to power on my phone, but it didnt come out. it happened to vibrate at first but wont boot.

later i tried once again to power on. sadly, no respond received.

is my phone permanently died?

now it is being charged from socket, but it shows no sign of living. the led doesnt light up. tried to power on again, but no responds.

which step should i choose? help me :(
[Sony Cross-Device General] Hubriss:
Yes.Yes. And Yes. :)
[Sony Cross-Device General] mirhl:
and what did you exclude?

you have to flash everything and remember to wipe anything too
[Sony Cross-Device General] Hubriss:
did not exclude anything.Wiped everything.
[Sony Cross-Device General] veex93:
dudes, i have one xperia play that is in bootloop state, he's rooted and the bootloader is locked, but the lastest flashtool recognize him, so, now i have some questions:

1- how i reset factory my xperia play? (i tried to pres turn on button + back and search button but it does nothing here, only turn on the phone..)

2- i need bootloader UNLOCKED to do something?

3-can anyone let me know of some thread if this ones does not help me, plz?

that's all for now, and, maybe the error in my xperia play was the config from ram manager that change the VM Heap Size, i aciddently changed to 512Mb (maximum ram on Xperia PLay) and do not turned it to normal...
[Sony Cross-Device General] mirhl:
download stock rom and flash it via flashtool

no need of an unlocked bl
[Sony Cross-Device General] veex93:
Whoa thx for this info dude, i alerdy solve my problem but now i will change my firmware version, thx!
[Sony Cross-Device General] heart_of_life:
hey dudes.. i read most of the opening posts but want to check before i screw something..

i was trying to flash the previous firmware's kernel so i can root, flashtool kept saying that i don't have the drivers and couldnt start in fastboot mode.. i tried several times, and i did a hard reset a couple of times.

now the phone won't start up at all in any mode.. no led no nothing.

the battery was about 90% before this happened..

now it's been connected to a wall charger for a couple of hours.. should i just wait? or try the rubber band thing or what??

plz help me..

:(
[Sony Cross-Device General] mirhl:
you must first install adb drivers

check this guide if you are on windows 8

otherwise just press vol- while connecting phones to the computer, and install the drivers as soon as you can
[Sony Cross-Device General] heart_of_life:
i'm on win 7 and i have all the drivers installed, flashed roms several times.

but my problem now is that the device doesnt blink at all when connected to pc, i just hear a bleb from the computer indicating SEMC flash device.
[Sony Cross-Device General] mirhl:
isn't that enough to enter flash mode?

have you tried hard resetting the phone? (power + vol+ for 15 seconds)
[Sony Cross-Device General] heart_of_life:
no it doesnt go into flash mode at all.. and doesnt hard reset :(
[Sony Cross-Device General] hgropelli:
thanks for the guide toledo

i sucefully recovered my phone
[Sony Cross-Device General] tarun_funy:
So this is how my xperia ion lt28at got screwed.

My wide is using this. not sure what she did, the phone turns on > Sony logo appears > at&t logo appears and in midway the screen goes off and again the same loop. all way it has red led.

being an impatient person, I pressed power+volume up button, 3 vibrations and the phone turned off. Now nothing is happening, no bootloop, no red light nothing.

Can anyone please tell me what should I do now and from where to start?

thanks in advance
[Sony Cross-Device General] heart_of_life:
Thanks guys, my phone is alive again!
[Sony Cross-Device General] mirhl:
download stock FTF and flash it via flashtool
[Sony Cross-Device General] tarun_funy:
Thanks for a quick reply.

i downloaded ftf from this link:

http://xdaforums.com/wiki/Sony_Xperia_ion

version 6.1.C.1.111.

Unrar the file, total size of ftf file was around 700mb. i kept it under c:\flashtool\firmware and i can see it listed on click lighting button > flash mode > ok on flashtool. it shows Preparing files for flashing and then ERROR - Error preparing files. I didn't connect my phone yet. Trying with just a lower version of ftf file now. I hope I am downloading from correct location.

Another doubt i have is when i start my phone it shows sony logo > at&t logo and screen blurs > restarts again and same loop. If the ftf loads fine on flashtool and I plug my phone to PC, won't this loopcycle interrupt flashing of rfirmware?

meanwhile flashtool does recognize my phone when i press vol down button and plugs in. when in between ata&t logo cyle below details come :

28/054/2013 14:54:03 - INFO - Device connected with USB debugging on

28/054/2013 14:54:04 - INFO - Connected device : LT28

28/054/2013 14:54:04 - INFO - Installed version of busybox : N/A

28/054/2013 14:54:04 - INFO - Android version : 4.0.4 / kernel version : 3.0.8+1.0.21100-30145-01929-g654cfeb / Build number : 6.1.C.1.111

28/054/2013 14:54:13 - INFO - Device disconnected

and then bang it restarts again.

Apology for long reply, just wanted to make sure i am not screwing it further.
[Sony Cross-Device General] tarun_funy:
Ok so finally my xperia ion is up. Did power+vol up button and on one vibration let it go. It didn't bring my phone to boot loop. then I kept it on charging whole night. in the morning it was having green led.

downloaded firmware version 6.1.C.1.105 as .111 was not working on flashtool, might be because of driver issues.

started flashtool, click on lightning button and select the firmware and ok. It asked to plugin phone this time with the screen. Pressed down vol down key and pluggin usb and voilla, it started flashing and after it's over It showed to restart phone. Restarted and it worked fine.

Checked my Antutu score after fresh installation. It gave 8150
[Sony Cross-Device General] SuperNova7:
Need help!

My acro s shows red led when plugged in and then shows sony logo for 1 minute or so and i cant get into recovery or into fastboot/flashmode and i tried almost everything in OP
[Sony Cross-Device General] mirhl:
press vol+ for about 10-15 seconds

then plug it in with vol- , enter flashmode and flash stock FW via flashtool
[Sony Cross-Device General] jimmyjim1233:
hey i really need help with my xperia u , but first of all im sorry if other ppl have asked this question before... i've been using that phone for over a year now... but now the phone have this weird problem that suddenly a part of the screen is not responding to my touch.. the not responding part is random and sometimes i cant even unlock the screen... i've trid re-flashing the phone but it didnt do any help. i ask at a repair shop how much will it cost to fix it and it almost cost 40 dollar. im testing my luck if anybody out here that knows how to fix this . thank you and sorry for my bad english
[Sony Cross-Device General] fg_vf:
Hi guys,

I'm having some trouble here with my lt28h, the phone keeps on bootloop even after tried everything:

- Flash the last JB stock rom

- Flash the old ICS one

- The bootloader was re-locked

I tried to repair it with the Sony Update app but it says that i'm already up to date and when i reinstall by the program it ends up bootlooping again.

Some help would be great.

I am an advanced user, i already know all the tricks in the Ion but this problem got me really stuck...

Thanks.
[Sony Cross-Device General] jensma:
Hey there,

My device: Xperia U

What I did wrong:

- Flashed the wrong kernel

What my phone does right now:

- Bootloader/Flashmode inaccesible

- Plugging in the charger causes the red LED to light up for a second or so

- On/Off switch gives a vibration, screen is black.

Any ideas :(? I kinda need my phone..

FIXED IT -> http://xdaforums.com/showpost.php?p=33240924&postcount=12
[Sony Cross-Device General] mirhl:
hard reset the phone by pressing power +vol up until phone vibrates for three times

then you can enter fastboot and flashmode
[Sony Cross-Device General] Froz3:
Tanks ! Very useful! :)
[Sony Cross-Device General] pesare6969:
Need HELP

Hello Guys !

I need some help with my xperia s .

I will tell you how it was soft bricked , it may be useful to know in my situation.

I had [6.2.B.0.200] eXistenZ BLACK Edition | V2 | HDR [10/06] installed and worked properly , it was installed trough CWM.

I tried to install KA25_Xperia_SSpeed for better performance , and installation trough cwm was quick and good but after reboot my phone got into SONY logo and rebooting until battery died out. After that I was able to charge it until red light turned of and green led turned on, there was a 5 sec time to starting phone with volume+usb cable and flashing LT26i_6.1.A.0.452_CE1 . How ever it tool few hours but it was done.

It's working now again but there are OTHER problems.

I can't install cwm or any custom rom longer and SEUS or integrated Xperia update function is not responding any more, Today I received a message regarding to update to 6.2.b.0.200 , i accepted on phone but after download it couldn't install it !

I have tried with rom manager to installing new rom but my phone will not boot into recovery , I have tested any possible way to reach recovery mode but it look likes that cwm is not installed.

I tried RECOVEREX and CWM6-cdm DOOMLORD installer but none of them can verify a CWM installation , or how ever it just doesn't seems to work. BEFORE Soft brick I was able to install CWM on both way.

I have checked Boot loader and it's still UNLOCKED and I have rooted my phone with DOOMLORD Easy Root toolkit and Superuser seems to work.

I don't really know what to do in this situation .

Can you guys help me please?

Thanks
[Sony Cross-Device General] mirhl:
[MENTION=4225320]pesare6969[/MENTION]

you flashed an ics kernel on a jb rom, it's obvious you soft bricked

anyway, flash the official stock rom via flashtool (and make sure all "wipe" boxes are ticked, and all the "exclude" are unticked)

and then fastboot doomkernel and enjoy its working recovery
[Sony Cross-Device General] pesare6969:
Thank you sir ! Will try it :good:
[Sony Cross-Device General] ad6:
very nice guide thanks!
[Sony Cross-Device General] keyron200:
xperia s boot looping and can't find my stock.ftf file to flash

Hi. I also faced the same problem of soft brick and started to boot loop after installing chainfire 3d mistakenly due to over crazy to play Street Fighter IV HD. :rolleyes: After I read all the steps to recover my phone, I didn't find my stock.ftf file to flash. And yes I followed the link to download the stock.ftf files for my xperia s now I am confused how to copy or put that stock.ftf file in my device in order to flash my device again. :eek: I've attached the screenshot. Though I have unlocked my bootloader and rooted my device to 6.2.B.1.96 firmware JB. Please sir help me to get my device back working as before. :(
[Sony Cross-Device General] mirhl:
use emma from sony
[Sony Cross-Device General] surajdhanuki:
guys pls help me... i rooted my xperia miro and installed cwm... then later i flashed miui for tipo into miro... and now my miro doesnt start.... no sony logo or anything... i can get blue led light when i press power + vol up.... and i get green led light while connected to usb to pc by pressing down vol..... but i dont get anything further.. cant get sony logo... the mobile not even starting.... i can only feel the vibration and nothing else.. pls help
[Sony Cross-Device General] mirhl:
it's not such a tragedy, keep calm

download flashtool, then the stock FW and flash it

and you are done
[Sony Cross-Device General] keyron200:
Thanks a lot :good: I got my phone alive. But I am bit curious that while I flashed my phone with service build no. 6.2.B.0.200 which was already there in emma and after flashing I checked build no. on my mobile and it is 6.2.B.1.96 now. How it is possible though I was downloading firmware 6.2.B.1.96 in background for later flashing via flash tool. How it was changed whether I flashed with old one? Did it changed due to previous rooting of my phone? Now do I need to flash my mobile again with firmware 6.2.B.1.96? And yeah sad news was I lost my root. Again I have to root my device.
[Sony Cross-Device General] surajdhanuki:
when i press vol down and connect to usb... nothing comes in flashtool... the wait for flashmode dialogues stays still ... and my pc says usb not recongnised.....
[Sony Cross-Device General] mirhl:
Try to reinstall drivers (you can do so from flashtool)
[Sony Cross-Device General] surajdhanuki:
installed the drivers .. but still the problem presist.... ????

i m in win 8.1
[Sony Cross-Device General] mirhl:
That's the problem, see below

http://xdaforums.com/showthread.php?t=2095087
[Sony Cross-Device General] thinkingood:
Xperia U bricked

My xperia U , wont boot. The sony logo will be displayed for a sec or so then the screen goes blank. I have also tried SUS but it wont recognise my phone.

I can go to flash-mode(green bar) and fastboot (blue bar) but no progress after that.

Tried flashtool but the flashing wont begin. Here is the log:

08/055/2013 17:55:00 - INFO - Device disconnected

08/034/2013 18:34:28 - INFO - Device connected in flash mode

08/034/2013 18:34:43 - INFO - Selected ST25i / 6.0.B.3.184 / Generic World

08/034/2013 18:34:43 - INFO - Preparing files for flashing

08/035/2013 18:35:00 - INFO - Please connect your device into flashmode.

08/035/2013 18:35:01 - INFO - Opening device for R/W

08/035/2013 18:35:01 - INFO - Reading device information

Is there a way to unbrick my device?
[Sony Cross-Device General] mirhl:
You have to connect with vol- the phone AFTER you have selected which FW you want to flash
[Sony Cross-Device General] thinkingood:
Thanks for the reply mate but I have followed all the steps in correct order(also the one u mentioned) . Tried again but in vain . Can ANYONE help me with the : " Reading device information " log entry ? It freezes there and doesnt move ahead .
[Sony Cross-Device General] mirhl:
Are you on win8?

If so check some posts above for the link i posted
[Sony Cross-Device General] thinkingood:
No I am on Win 7 Ultimate
[Sony Cross-Device General] mirhl:
Try hard resetting your phone with power + volume up for 15 second

Then, connect with vol- to pc
[Sony Cross-Device General] thinkingood:
Tried hard-resetting but phone wont give 3 vibrations no matter how long i press pow+vol_up key. But i have ruled out hard-bricked as phone would go into fast-boot mode as well as flashmode.

Any other suggestions and help would be hugely appreciated.
[Sony Cross-Device General] mirhl:
.-. phone has to do 3 vibrations

otherwise pull of battery for the phone, wait for a minute and then try connecting
[Sony Cross-Device General] borissd:
Help :(

:confused::crying: I have a xperia T, and not start with the + and on, the computer does not recognize it for flashtool, died in a normal restart, not to do: (please help, if not unclog it, but I'm afraid to damage the mother board

:crying: