[Q] Xperia Mini St15i continuosly rebooting. - Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A

When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.

avisingh said:
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
Have you tried to install a custom rom or have you got any idea why this is happening?
Do you know how to flash with flashtool? If not look in my signature there is a rooting guide. In the rooting guide on how to root gingerbread 4.0.2.A.0.62/69 you can see how to flash with flashtool and after that, if you want, root it.
If your phone wasn't rooted and your bootloader is locked and you haven't installed any app which could cause this problem, bring phone to service, but only if this could be hardware related and you haven't modified anything

Oh my science! You've been here since 2009 and this is your first post!?!?
Don't worry Your kernel is clean the problem is with the Rom.
Just flash the stock firmware ftf for your phone using flashtool and it'll be brand new again!
This will be useful
http://forum.xda-developers.com/showthread.php?t=1568792
There are numerous tutorials about flashing ftf through flashtool just google it (the above link will be also useful).
Flashtool can be used with locked bootloader . You can use it on a out of box phone right away.
hit thanks if I've helped!
sent from my smultron

Re: [Q] Xperia Mini St15i continuosly rebooting
avisingh said:
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
I have experienced the same problem with my Xperia mini pro (SK17i). Just try to switch off Bluetooth before it restart. May be it will work on your device too.
Is it possible that bluetooth problem is an issue on android 4.0 ICS?

rmu87 said:
I have experienced the same problem with my Xperia mini pro (SK17i). Just try to switch off Bluetooth before it restart. May be it will work on your device too.
Is it possible that bluetooth problem is an issue on android 4.0 ICS?
Click to expand...
Click to collapse
no. There's no bluetooth bug in ICS.

please help me
avisingh said:
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
I am facing same problem with my sony xperia mini. Have you found any solution??

avisingh said:
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
i have the same problem here with my Xperia Ray.. The phone turned off automatically as i turned the bluetooth on and is not turning on again. it shows the sony and xperia screen over and over again.. now i can't turn it on. my phone is running on official ICS and its not rooted.. i dunno wat to do. please help..

AhoyPopol said:
i have the same problem here with my Xperia Ray.. The phone turned off automatically as i turned the bluetooth on and is not turning on again. it shows the sony and xperia screen over and over again.. now i can't turn it on. my phone is running on official ICS and its not rooted.. i dunno wat to do. please help..
Click to expand...
Click to collapse
Flash stock ftf with flashtool and ur mobile will turn on
Press THANKS if I helped,
Best Regards,
AJ

i am also having this bug on my xperia mini ICS unrooted stock firmware. i got changed by chipset too so now my phone has locked bootloader but still had the f**king bluetooth bug. it never happened in GB.

this also happend to my phone today, and i wipe dalvik cache everytime it reboots. i got this fixed by installing bluetooth fix repair on google play.

Problem in ICS
jeromemo said:
this also happend to my phone today, and i wipe dalvik cache everytime it reboots. i got this fixed by installing bluetooth fix repair on google play.
Click to expand...
Click to collapse
I too faced the same problem in my ST15i....Bluetooth works fine for a few times and after that suddenly it creates bootloop. When for the first time i went to the service center he told me that the ICS release is having a bug and it is not completely compatible.
I have also tried many custom roms with my bootloader locked. But the problem is same.
I feel that the problem is with the stock kernel and stock ICS rom compatibility.
Devs, please look into this and please develop a perfect solution. :good::fingers-crossed:

phone not starting up
i also have this rebooting problem b4 that time i just unlocked my bootloader by test point method the mobile functioned properly
but again the same problem exists this time i tried relocking bootloader by test point method and tried to flash it.Also i tried using s1 tools also after that my mobile is not even switching on 1 vibration is coming and no other further action
I heard that this is the best forum for flashing and rooting android
help me please

xperia mini reboot continusly
i have problem here
with my Xperia st15i
phone turned off automatically
as i turned the bluetooth on
and is not turning on again . it
shows the sony and xperia
screen over and over again and again
now i can't turn it on. my
phone is running on official
ICS and its rooted.i have flash via flashtool with stock fw but same prob facing next day . please help me

Pkumar28 said:
i have problem here
with my Xperia st15i
phone turned off automatically
as i turned the bluetooth on
and is not turning on again . it
shows the sony and xperia
screen over and over again and again
now i can't turn it on. my
phone is running on official
ICS and its rooted.i have flash via flashtool with stock fw but same prob facing next day . please help me
Click to expand...
Click to collapse
i had this problem once on my xperia ray... boots upto xperia logo and reboots... but soon i changed my ROM and kernel and now there is no bug. custom roms are better anf faster than the buggy stock rom from sony...

pitchblack5691 said:
Oh my science! You've been here since 2009 and this is your first post!?!?
Don't worry Your kernel is clean the problem is with the Rom.
Just flash the stock firmware ftf for your phone using flashtool and it'll be brand new again!
This will be useful
http://forum.xda-developers.com/showthread.php?t=1568792
There are numerous tutorials about flashing ftf through flashtool just google it (the above link will be also useful).
Flashtool can be used with locked bootloader . You can use it on a out of box phone right away.
hit thanks if I've helped!
sent from my smultron
Click to expand...
Click to collapse
Thanks alot man... my sisters old phone has been sitting there for close to four months cos I traveeled outta the country... and I have never tried doing anything with android software before... so I looked it up yesterday, flashed the phone with gingerbread and then upgradded to ICS for her old st15i... now the phone works like charm and is way lot faster than the old cusom sony xperia rom which was laggy... Thanks again... I feel like a star now... officially welcoming myself to the world of tweaking softwares...

To solve ur issue
avisingh said:
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
--------------------------------------------------------------------------------------Problem Solved---------------------------------------------------------------------------------------------------
I also had Xperia Mini which gave me blue tooth problem.
1) Take out ur phone battery & connect ur phone with charger & switch the phone on.
2) Leave ur phone for about 10 mins and then while restarting put ur battery in the phone.
3)Take out the charger while restarting & ur startup will be more longer.
4) Then quickly go to setting &switch off the blue tooth.
5) Ur phone will restart again but this time ur phone will be working.
NOTE
In this process take out ur Sim Card & SD Card fron ur phone.
Give Reply

Originally Posted by avisingh
When I turn on my Xperia Mini, I first see the sony logo and then I see the xperia logo and then the screen turns off. The phone automatically starts again with the sony logo, xperia logo and so on.
I have tried starting the phone in safe mode by holding down the volume key or by repeatedly pressing the menu button but both of them do not work. I have also tried to "repair" the phone via the PC Companion but it detects the phone only momentarily(as it switches on).
This problem started soon after I had switched on the bluetooth radio on my phone.
My phone is running on Android 4.0.4
This problem did occur in the past but I was able to open the safe mode then and a factory reset solved the problem at that time.No such luck now.
How can I hard reset the phone without reaching the menu??
Or is there any other way to solve this problem??
Please help.
Click to expand...
Click to collapse
--------------------------------------------------------------------------------------Problem Solved---------------------------------------------------------------------------------------------------
I also had Xperia Mini which gave me blue tooth problem.
1) Take out ur phone battery & connect ur phone with charger & switch the phone on.
2) Leave ur phone for about 10 mins and then while restarting put ur battery in the phone.
3)Take out the charger while restarting & ur startup will be more longer.
4) Then quickly go to setting &switch off the blue tooth.
5) Ur phone will restart again but this time ur phone will be working.
NOTE
In this process take out ur Sim Card & SD Card fron ur phone.
Give Reply
Click to expand...
Click to collapse
Sent from my One using xda app-developers app
---------- Post added at 03:38 PM ---------- Previous post was at 03:38 PM ----------
pranavashish said:
--------------------------------------------------------------------------------------Problem Solved---------------------------------------------------------------------------------------------------
I also had Xperia Mini which gave me blue tooth problem.
1) Take out ur phone battery & connect ur phone with charger & switch the phone on.
2) Leave ur phone for about 10 mins and then while restarting put ur battery in the phone.
3)Take out the charger while restarting & ur startup will be more longer.
4) Then quickly go to setting &switch off the blue tooth.
5) Ur phone will restart again but this time ur phone will be working.
NOTE
In this process take out ur Sim Card & SD Card fron ur phone.
Give Reply
Click to expand...
Click to collapse
Dude m facing same problem tried above method but didnt worked for me ..i heard flashin stock firmware will do it for me ..where will i find stock firmware and when i connect device ..the device is available for some seconds and it goea off again ..if in this case how can i flash firmware confused plz help me
Sent from my One using xda app-developers app

vaibhav satam said:
Sent from my One using xda app-developers app
---------- Post added at 03:38 PM ---------- Previous post was at 03:38 PM ----------
Dude m facing same problem tried above method but didnt worked for me ..i heard flashin stock firmware will do it for me ..where will i find stock firmware and when i connect device ..the device is available for some seconds and it goea off again ..if in this case how can i flash firmware confused plz help me
Sent from my One using xda app-developers app
Click to expand...
Click to collapse
I'll provide you steps for flashing below
1. download flashtool for your pc and install it
2. you'll find the folder flashtool in c drive them navigate to drivers folder and install the drivers found there during installation select drivers to installed for all device
3.download the latest firmware for ur device and put in firmwares folder of flashtool
4.remove battery from ur mobile and re-insert battery and connect ur phone to ur pc by holding volume down button (ur LED will glow in bright green colour now)
6. now open flashtool.exe It will show device connected in flash mode and click on flash symbol in the flashtool app
7.now select the firmware which u downloaded and click flash
8. that's it after that ur mobile is startup normally but it takes extra time than normal bootup please wait until it starts
Note: Make sure ur battery is charged more than 70% before flashing
please click thanks if it has worked 4 u

anandrd said:
I'll provide you steps for flashing below
1. download flashtool for your pc and install it
2. you'll find the folder flashtool in c drive them navigate to drivers folder and install the drivers found there during installation select drivers to installed for all device
3.download the latest firmware for ur device and put in firmwares folder of flashtool
4.remove battery from ur mobile and re-insert battery and connect ur phone to ur pc by holding volume down button (ur LED will glow in bright green colour now)
6. now open flashtool.exe It will show device connected in flash mode and click on flash symbol in the flashtool app
7.now select the firmware which u downloaded and click flash
8. that's it after that ur mobile is startup normally but it takes extra time than normal bootup please wait until it starts
Note: Make sure ur battery is charged more than 70% before flashing
please click thanks if it has worked 4 u
Click to expand...
Click to collapse
Can u plz share me link for stock firmware ..i flashed some firmwares but i am still in bootloop ..bdw thanks for d quick reply
Sent from my One using xda app-developers app

vaibhav satam said:
Can u plz share me link for stock firmware ..i flashed some firmwares but i am still in bootloop ..bdw thanks for d quick reply
Sent from my One using xda app-developers app
Click to expand...
Click to collapse
xperia mini ICS latest firmware---http://www.4shared.com/rar/29kaVZ1E/Xperia_Mini_ST15i_41B0587.html

Related

[Q] Xperia X10 bricked...!!!

Hey, I know this is not correct place for Xperia X10 issue's, but i need to display it in general section, as this one is getting critical..
I uploaded a custom rom on my xperia x10, for that i unlockd the bootloader and stuff..
Now, my phone is switched off since 15 days, when ever i try to switch it on, it vibrates once and nothing at all afterwards...if i press power button again, it won't vibrate, unless and untill i remove the battery and reinsert it in phone..
i see three red flashes of light, when connected to PC..
1. PC Companion for update, repair and custom repair is not working...most of the time phone is not detected..
2. SE-update service is also not working and phone is shown as Xperia arc..
3. Flashtool, doesn't recognize the handset
4. few, technician told me box flash would work, but again, it didn't work out
Now, i don't know much about this, but i do understand that hardware seems to be good, till now, the only issue is software and that to initial boot process i.e. bootloader.
is there any other way i can upload a new custom rom on my xperia ??
or any other solution, will be appreciated..
I'm assuming download mode didn't work? Pull battery and insert cord/battery/press back button at same time while aytempting to flash through flashtools?
I have tried flash tools with this method, but doesn't helps..
I don't know about download mode, is it the same done through PC companion..
Thanks
icenight89 said:
I'm assuming download mode didn't work? Pull battery and insert cord/battery/press back button at same time while aytempting to flash through flashtools?
Click to expand...
Click to collapse
I had the xact same problem and this worked for me..THANKS A LOT..i owe you one
Same issue
I have a similar issue.
When I try to flash it through flashtool, I get this error
"ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed""
Plus the phone is not also going in the recovery mode.
Please please help me.

[SOLVED] Xperia NEO Bricked and without flash mode

Hi,
I tried to upgrade mi xperia neo to Tweake 1.0 with the recovery, and now dont start.
When i power the phone or plug the charger appears the Sony Ericcson logo and continues there all time.
I can´t enter in flash mode (son i can´t use seus or flash tool), always appears other time the sony ericsson logo.
The bootloader is closed.
Can anyone help me?
Thanks
Are you sure that you are doing the correct procedure to use flash mode on the phone? Here it is:
1. Turn off the phone.
2. Remove the battery for at least 10 seconds.
3. Insert the battery again.
4. Press and hold the "back" button on the phone.
5. While still holding the "back"button pressed connect the phone with teh usb cable to the pc. Flashtool should now recognize the phone.
alekmzn said:
The bootloader is closed.
Click to expand...
Click to collapse
So, there are two ways:
1. flashmode (green LED) have still work, so do as neptun2 advices.
1. Turn off the phone.
2. Remove the battery for at least 10 seconds.
3. Insert the battery again.
4. Press and hold the "back" button on the phone without pressing "power on" button
5. While still holding the "back"button pressed connect the phone with teh usb cable to the pc. Flashtool should now recognize the phone.
Click to expand...
Click to collapse
or
2. if recovery still works, try to do all wipes again (data, cache, dalvik-cache)
Thaks to all.
I can´t access to the recovery, and i don´t see the green led when i plug the cable.
check this out. may be it will help you...
http://forum.xda-developers.com/showthread.php?t=1254409
Cheking, Thanks!
Did u try wotan client ? Its pretty simple and easy to use !, Google it if u didnt already.
Sent from my Xperia Neo using XDA
Moursy93 said:
Did u try wotan client ? Its pretty simple and easy to use !, Google it if u didnt already.
Sent from my Xperia Neo using XDA
Click to expand...
Click to collapse
the problem of Wotan client is that is needed flash mode, so i can´t use it.
Thanks!
At this moment the problem is solved.
It has damaged the trim area, Alejandrissimo support me to repair de problem.
Thnaks to all!
Great notice for you!!!!!
Congratulations!!!!!!!!
alekmzn said:
At this moment the problem is solved.
It has damaged the trim area, Alejandrissimo support me to repair de problem.
Thnaks to all!
Click to expand...
Click to collapse
I'm with the same problem here in my Xperia Neo, it just shows Sony Ericsson, i can't open recovery, can't do hard reset, and can't reset via PC Companion.. :/
@edit
problem solved, i made the bootloader (first time *-*), then i flashed a stock rom by SE, and it worked!

[Xperia U] boot loop/soft brick

While updating a new Xperia U to ICS the PCC had an error while flashing the new firmware. Now the screen lights up, the sony logo is shown for ~3-5 seconds and then it reboots.
After that I have been unable to get it recognized again by either PCC/SUS or flash tool.
I also checked my log files in Linux and no device appears.
I've tried 3 different machines (2x Windows 8, 1x Win 7), multiple USB ports. Also leaving the battery out for ~30 mins didn't change the behavior.
The green light for download mode comes on, but after about 5 seconds the light goes out and it goes into the boot loop again.
So by now I believe the device needs to be sent in, but maybe some one has a few more things I can try.
Try pressing the volume down plus volume up plus power button all 3 simultaneously till u feel 3 vibrations
Sent from my ST25i using Tapatalk 2
Can you make sure the Flashtool drivers are installed ? Go to Flashtool Directory, open drivers directory and start the setup.. Make sure to select the Flashmode and Fastboot drivers are also selected. Then, reboot System and folow this order.
Startt flashtool,select f/w, wait for Flashtool to tell you to connect to device. Then, holding the Volume down button (while phone is switched off), plug the cable into phone (The usb cable must already be connected to PC before starting the Flash Procedure )
The Order is very important.. I had same issue with U (althoguh mine crashed with Flashtool and same as what you observed. When I followed this order, I was able to get it detected and flashed )
Hopefully, you wont need to return to Service Center
let me know how it goes
Cheers ! & Merry Christmas
And yes I forgot to mention
Wrong section
Plz use question n answer section next tym
Sent from my ST25i using Tapatalk 2
drsanket_xperia_u said:
Try pressing the volume down plus volume up plus power button all 3 simultaneously till u feel 3 vibrations
Sent from my ST25i using Tapatalk 2
Click to expand...
Click to collapse
No response, I've tried holding all three buttons for a minute, but it doesn't vibrate after turning on. The only way I can turn it off is by removing the battery.
Min3r said:
Can you make sure the Flashtool drivers are installed ? Go to Flashtool Directory, open drivers directory and start the setup.. Make sure to select the Flashmode and Fastboot drivers are also selected. Then, reboot System and folow this order.
Startt flashtool,select f/w, wait for Flashtool to tell you to connect to device. Then, holding the Volume down button (while phone is switched off), plug the cable into phone (The usb cable must already be connected to PC before starting the Flash Procedure )
The Order is very important.. I had same issue with U (althoguh mine crashed with Flashtool and same as what you observed. When I followed this order, I was able to get it detected and flashed )
Hopefully, you wont need to return to Service Center
let me know how it goes
Cheers ! & Merry Christmas
Click to expand...
Click to collapse
I tried that right now, Flashmode and Fastboot drivers are installed. Flash tool is ready, device is plugged in with volume down pressed, green light comes on. Nothing is found on the PC, after about 5 seconds the green light turns off and the phone shows the sony logo. Green light also comes on if i simply plug in the usb without volume down pressed. So I'm thinking, the download mode has some how been corrupted?
drsanket_xperia_u said:
And yes I forgot to mention
Wrong section
Plz use question n answer section next tym
Sent from my ST25i using Tapatalk 2
Click to expand...
Click to collapse
Sorry about that, maybe a moderator can move my topic to the right section.
Are u connecting it properly???
Make sure when u connect ur cell to ur pc u have nt presed the power key
keep the phone off
Press the volume down button ( keep it pressed, dun
leave it) and connect it to the usb
U will see green light
Darn.. That looks bad.. That did it for me on every occasion. I think you might have a hardbrick due to the interrupted write cycle so I dont think any other way except to take it to Service Center
Sorry I couldnt help
drsanket_xperia_u said:
Are u connecting it properly???
Make sure when u connect ur cell to ur pc u have nt presed the power key
keep the phone off
Press the volume down button ( keep it pressed, dun
leave it) and connect it to the usb
U will see green light
Click to expand...
Click to collapse
Exactly what I'm doing and the green light does come on. Except it decides to go into a boot loop after it apperantly boots into download mode but doesn't stay there.
Min3r said:
Darn.. That looks bad.. That did it for me on every occasion. I think you might have a hardbrick due to the interrupted write cycle so I dont think any other way except to take it to Service Center
Sorry I couldnt help
Click to expand...
Click to collapse
That's what I've been fearing. In which case it goes back to the seller in the hope that he will send me a new device.
Moved
Is there any chance of properly reactivating flashmode by using a JTAG?
Cebalrai said:
Is there any chance of properly reactivating flashmode by using a JTAG?
Click to expand...
Click to collapse
Risky business
Jtag. ...used for hard bricked devices n. Seen max to work wid samsung phones only....
Wont recommend u too open up ur xu
Let the service center try first
Sent from my GT-N7000 using Tapatalk 2
Have you manage to recover your phone without taking it to service?
I'm in the exactly same situation... Any help is welcome...
While trying to enter flashmode, green light turns on but after some secs it turns off and sony logo appears on screen. any chance to recover this beautiful brick ?
thanks
After several tries (a lot of...) I manage to enter flashmode and SUS is now reinstalling sony ROM.
Honestly I don´t know how it works this time and not the others but i'm happy with it independently of what happens.
... seems flashtool is detecting ur phone try to flash first the stock kernel and do not wipe everything it shud be in timing though.. onces it is flash charge ur phone in kernel mode (phone is off) then you can flash the stock fw of ur XU.
I bricked my phone
I bricked my xperia U as well... When i tried to power ON, it just vibrates and nothing happens, i dont even get the sony logo. When i get into flash boot mode it gets connected but after 20secs, the phone turns off again. Only fastboot mode stays on. How can i unbrick my phone??? Plz help. I made a mistake by flashing the custom jelly bean rom without flashing the kernel first.
adithyasailesh said:
I bricked my xperia U as well... When i tried to power ON, it just vibrates and nothing happens, i dont even get the sony logo. When i get into flash boot mode it gets connected but after 20secs, the phone turns off again. Only fastboot mode stays on. How can i unbrick my phone??? Plz help. I made a mistake by flashing the custom jelly bean rom without flashing the kernel first.
Click to expand...
Click to collapse
No worries. The phone turns off because it doesn't receive any signal from the PC - many people make the mistake of connecting the device in flashmode first, and then they start the flashtool etc.
Instead, load the flashtool first, go to flashmode, select a complete/full stock ftf for your phone (whichever version you want, but do double check if the ftf has kernel.sin file in it) and press the flash button. Only once you get the pop up with the animation telling you to connect the phone in flash mode, connect the phone in flashmode (volume - button pressed when connecting cable). As soon as you connect the phone, the flashtool will start its magic and your phone won't turn off.
if you can go in cwm wipe system then you will only be stuck on sony logo then use this guide http://www.youtube.com/watch?v=hPPWRXcsz7g.....it will work because this same happened to me and i fixed it with this method!
-------------------------------------------------------------------
press thanks if i helped
-------------------------------------------------------------------
using xperia u
locked bootloader
jb experience v2.1 rom

[Q] Neo V restarted and not switching on

I have unlocked bootloader and custom rom of Super Jelly Bean until now. I am using custom rom since past 2 years , but today when my battery discharged I am unable to switch it back on . I tried connecting it at wall charger , and then after red LED blink for a minute it goes to Green LED , but phone is unable to switch on .
I can see device connected in flashmode on my flashtool . Did anyone face similar issue?
linux_devil said:
I have unlocked bootloader and custom rom of Super Jelly Bean until now. I am using custom rom since past 2 years , but today when my battery discharged I am unable to switch it back on . I tried connecting it at wall charger , and then after red LED blink for a minute it goes to Green LED , but phone is unable to switch on .
I can see device connected in flashmode on my flashtool . Did anyone face similar issue?
Click to expand...
Click to collapse
Your keys are seemed to be short. They are always pressed and hence phone is going into Flashmode, try carefully rebooting without touching the keys or try opening and cleaning it up.
Open Flashtool , if the phone gets connected (even in flashmode), try rebooting from Flashtool.
ankurvij said:
Your keys are seemed to be short. They are always pressed and hence phone is going into Flashmode, try carefully rebooting without touching the keys or try opening and cleaning it up.
Open Flashtool , if the phone gets connected (even in flashmode), try rebooting from Flashtool.
Click to expand...
Click to collapse
If that doesn't help then do flashing the stock rom . 587
After that reboot. Hope it helps
Sent from my Xperia Neo V using xda app-developers app. Hit thanks if it helped

Stuck at Sony logo on white background

Hello,
my M4 Aqua was charging and now just shows the Sony logo on a white background . I can turn it off and on again, but it always shows only this screen nothing else. It is running everything stock no custom rom or something. Is there anything I can do?
Thanks for your help
Try to use the Recover Tool in Xperia Companion, that should do the trick
I already tried that, but the phone is not recognized via usb.
Let the phone connected to the power and then try to flash via Flashtool. Actually right now I have the same problem
deowd said:
I already tried that, but the phone is not recognized via usb.
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Click to collapse
Wait, new development. I was reading some posts here in the forum and I came across one where someone said to press the screen with the thumb and the back panel with index finger, near the NFC logo. Don't know why but my E2303 is right now working thanks to this
use EMMA (sony flash tool)
deowd said:
Hello,
my M4 Aqua was charging and now just shows the Sony logo on a white background . I can turn it off and on again, but it always shows only this screen nothing else. It is running everything stock no custom rom or something. Is there anything I can do?
Thanks for your help
Click to expand...
Click to collapse
Try emma(sony flash tool)
First hard reset your phone b4 it starts again hold vol down key while plugging it into your pc (with emma installed and running), the software will detect your phone and IMEI number then select your firmware form the list then press apply then wait till the process completes......
P.S- you need a strong internet connection and a laptop (or a desktop with continous power supply) and it will wipe all your data....................
Maybe your boot integrated chip haw been damaged due to overheating of your device. First, get it repaired usually take 900inr. Then install latest stock rom using any tutorial

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