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unblocking bootloader of xperia U

Hi,
After 2 days of searching this forum and reading (unlockbootloader.sonymobile.com) this tutorial, Still I can not unblock bootloader of my xperia u
the problem is that I can not power on my xperia u in flashmode! I searched a lot but couldn't find anything.
holding volume up and power doesn't work,holding back button and power doesn't work
how can I bring my xperia u up in flashmode?
note that I checked the "Bootloader unlock allowed" was set 'yes' in my cellphone

sinoohe said:
Hi,
After 2 days of searching this forum and reading (unlockbootloader.sonymobile.com) this tutorial, Still I can not unblock bootloader of my xperia u
the problem is that I can not power on my xperia u in flashmode! I searched a lot but couldn't find anything.
holding volume up and power doesn't work,holding back button and power doesn't work
how can I bring my xperia u up in flashmode?
note that I checked the "Bootloader unlock allowed" was set 'yes' in my cellphone
Click to expand...
Click to collapse
here is official unlock guide just follow the steps on this site you have to "guess" about unlock-button
step 12
On your phone, push and hold the unlock button* at the same time as you connect the phone to the computer with a USB-cable. The unlock button may differ between different phone models. See the note in the bottom of this page for more information on what button use on your phone.
Click to expand...
Click to collapse
most important thing :
keep that button pressed while connecting your phone to computer with a USB-cable then you see how windows is searching for drivers..
step 15 is most relevant to check you pressed the right button
Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your phone is connected properly.
Click to expand...
Click to collapse
well, this is it ...and should work easily !

ruscan.calin said:
here is official unlock guide[/URL] just follow the steps on this site you have to "guess" about unlock-button
step 12
most important thing :
keep that button pressed while connecting your phone to computer with a USB-cable then you see how windows is searching for drivers..
step 15 is most relevant to check you pressed the right button
well, this is it ...and should work easily !
Click to expand...
Click to collapse
thanks for replying
but my problem is with that which button is unlock button in xperia U?!!! the power button?
I tried all buttons, it doesn't work

sinoohe said:
thanks for replying
but my problem is with that which button is unlock button in xperia U?!!! the power button?
I tried all buttons, it doesn't work
Click to expand...
Click to collapse
you can be sure about that button when you get response in step 15
Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your phone is connected properly.
if not something is wrong with your Android SDK /Sony drivers installation
when you connect your phone to pc check if you have ADB Interface in Dev Manager
another solution is to request help from Sony not all models are unlockable ..
did you check it by step 2 on that online guide ?
...can be power button did you check it ? also do not forget : keep it pressed ! don't release that button until you see some change on PC: Windows should search drivers if not try another computer what if something is wrong with drivers ? can you sync phone with PC Companion ?

ruscan.calin said:
you can be sure about that button when you get response in step 15
Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your phone is connected properly.
if not something is wrong with your Android SDK /Sony drivers installation
when you connect your phone to pc check if you have ADB Interface in Dev Manager
another solution is to request help from Sony not all models are unlockable ..
did you check it by step 2 on that online guide ?
...can be power button did you check it ? also do not forget : keep it pressed ! don't release that button until you see some change on PC: Windows should search drivers if not try another computer what if something is wrong with drivers ? can you sync phone with PC Companion ?
Click to expand...
Click to collapse
I'm using archlinux 64 bit with latest kernel installed
I thing the problem is not with the driver, because I develop android programs with eclipse and run it in my xperia u correctly, without any probem
and also the results from adb is currect for example the adb devices shows:
Code:
/adb devices
List of devices attached
BX902X17GJ device
but the fastboot shows:
Code:
./fastboot -i 0x0fce getvar version
< waiting for device >
and it waits until I press C-c
I press and hold the power button from the beginning of powering on to loading the android
nothing happens at ALL!!

sinoohe said:
Code:
./fastboot -i 0x0fce getvar version
< waiting for device >
Click to expand...
Click to collapse
did you check in step2 if your device is unlockable ?
to develop/run apps is one thing to unlock bootloader is something different I think you don't have installed drivers for bootloader interface or your access to bootloader is locked -you can't unlock this model
also I'm worried about that x64 Linux machine...
my advice is : don't lose time and request help from Sony

[Q] Xperia E3 stuck on boot screen with sony logo

I know there are probably lots of threads about this, but I couldn't find one about E3 since it's a relatively new phone, but to point now
So I tried to update my Xperia E3 to it's latest firmware via the Sony pc companion(it was the only option) and during the update ,once it was downloaded it prompted to connect the phone through the USB cable, once done it began installing the update but when it was like at 80-85% it showed an error saying that internet connection isn't available and gave two options to either retry or cancel, now the internet was just working fine, I checked google, Youtube everything and it was working, but every time I hit retry it gave the same option ,so eventually I canceled the update,
Now the phone was switched off so I tried switching it on and it just froze at the sony boot logo screen, restarting with power button+volume up only restarts it to the same situation(stuck at logo screen), I did look up for a solution but couldn't find one that fit,
Of course I did switch it off using the off button at the back of phone(under the back cover), and I know about Sony Update service but that's no longer supported(it required the phone in off state), pc companion can't detect an off phone and when it does it starts phone to boot frozen screen and fails at detect step, another thing I found was a custom tool(possibly just SUS) that could flash a firmware in an off phone but however there is no firmware available for my version, since I live in India, so there's that , any help is appreciated,
A few things:
-The battery was at 91% when update started
-There was no root attempt etc made on phone, it was complete stock
-I did update the firmware once earlier but just from the phone it was a 2 mp update, no pc
-When I started this update there was already a 29 mb something update available without pc, and that's pretty much all, like I said any help is appreciated

Don't worry buddy, your phone doesn't die yet. Actually, PC Companion (PCC) has repair phone/tablet function.
Open PCC, click Start button in Support Zone, then continue to click Start button under Phone/Tablet Software Update and you will see "Repair your phone/tablet". Just follow its instruction. remember using the hard reset button under the back cover to turn off the device first and don't turn it on.
Anyway, what is your model? d22xx? i can't provide the firmware unless I know exactly the model.

It worked
Benjoy Ericsson said:
Don't worry buddy, your phone doesn't die yet. Actually, PC Companion (PCC) has repair phone/tablet function.
Open PCC, click Start button in Support Zone, then continue to click Start button under Phone/Tablet Software Update and you will see "Repair your phone/tablet". Just follow its instruction. remember using the hard reset button under the back cover to turn off the device first and don't turn it on.
Anyway, what is your model? d22xx? i can't provide the firmware unless I know exactly the model.
Click to expand...
Click to collapse
Thanks man, it worked, the phone is good and running again.

Benjoy Ericsson said:
Don't worry buddy, your phone doesn't die yet. Actually, PC Companion (PCC) has repair phone/tablet function.
Open PCC, click Start button in Support Zone, then continue to click Start button under Phone/Tablet Software Update and you will see "Repair your phone/tablet". Just follow its instruction. remember using the hard reset button under the back cover to turn off the device first and don't turn it on.
Anyway, what is your model? d22xx? i can't provide the firmware unless I know exactly the model.
Click to expand...
Click to collapse
Hello, my device is D2212 and I have similar problem.
I've rooted and unlocked bootloader using this method from XDA forum to root Xperia E3. However after unlocking bootloader and root my device my PC and my notebook doesn't recognize my device to transfer data or access data of cellphone. It keeps in charging mode.
Today it was really weird and lagging way too much so I tried to reset to factory setting. After that my device does not start android it keep stuck on blue screen right after display of Xperia and android.
I tried this method you suggested of PC Companion but it does not work since PC does not recognize my device anymore since rooting.
I need help here, please.
O just bought this device last week.
Thanks in advance.

Cristy0505 said:
Hello, my device is D2212 and I have similar problem.
I've rooted and unlocked bootloader using this method from XDA forum to root Xperia E3. However after unlocking bottloader and root my device my PC and my notebook doesn't recognize my device to transfer data or access data of cellphone. It keeps in charging mode.
Today it was really weird and lagging way too much so I tried to reset to factory setting. After that my device does not start android it keep stuck on blue screen right after display of Xperia and android.
I tried this method you suggested of PC Companion but it does not work since PC does not recognize my device anymore since rooting.
I need help here, please.
O just bought this device last week.
Thanks in advance.
Click to expand...
Click to collapse
Flash the firmware again using flashtool.

adrianocolvero said:
Flash the firmware again using flashtool.
Click to expand...
Click to collapse
Hi, thank you for your kind support.
Do you mean which part of this tutorial? http : // forum.xda-developers.com/xperia-e3/general/root-e3-t2964845
First "HOW TO UNLOCK YOUR BOOTLOADER!" or second "NOW HOW TO FLASH THE KERNEL AND APPLY THE ROOT!"?
Best regards!

Cristy0505 said:
Hi, thank you for your kind support.
Do you mean which part of this tutorial? http : // forum.xda-developers.com/xperia-e3/general/root-e3-t2964845
First "HOW TO UNLOCK YOUR BOOTLOADER!" or second "NOW HOW TO FLASH THE KERNEL AND APPLY THE ROOT!"?
Best regards!
Click to expand...
Click to collapse
Use this tutorial:
http://forum.xda-developers.com/xperia-z/general/tutorial-how-to-flash-stock-roms-t2240614
With this firmware:
http://forum.xda-developers.com/xperia-e3/general/firmware-18-4-b-2-14-rool-xperia-e3-t2939699

adrianocolvero said:
Use this tutorial:
http://forum.xda-developers.com/xperia-z/general/tutorial-how-to-flash-stock-roms-t2240614
With this firmware:
http://forum.xda-developers.com/xperia-e3/general/firmware-18-4-b-2-14-rool-xperia-e3-t2939699
Click to expand...
Click to collapse
Thank you very much, sir!

hai guys i have a xperia e3 dual d2212 i'm not sure whether it's rooted or unlocked bootloader it stucks on logo screen i try to flash it using flash tool but it says
ERROR drivers needed to be installed for connected device
ERROR you can find them in the drivers folder of flashtool
but i searched there there no devices mentioning e3 only e is available
in this condition should i flash or there is any other way please give me a solution

Hello I have a Sony experia e3 and it is giving me a problem. When I'm trying to start my phone it is booting and gets off by itself and again restarts...and this is going on and on. So please can you help me or give me a suggestion about how to fix it.
Please please please help for which I may remain ever greatful to you

Sony Xperia E3 Bricked

I tried to put AOSP 5.1 from FXP in my phone, and my cellphone bricked. It wont turn on, it keeps the Sony Logo 2 seconds. It haven't connection with flashtool. Please Help me.

Hi. Can you give me more information what you did exactly step by step. So maybe i can help you. My E3 was bricked too. I found a solution. But i need more information.

Flash stock rom it'll unbrick it

#4
Thank you answer back! I did exactly the following:
The model is my Xperia E3 D2212 dual sim.
- Unlocked the bootloader, :laugh:
- CWM installed a custom recovery, :laugh:
- I reinstalled the original rom, :laugh:
- I made a backup of the entire system using CWM.
And everything went super normal way, without complications.
The mistake was when he wanted to installing a custom ROM called "AOSP_L_MR1_150718_flamingo" because I found out later that he had not read that it was for ANOTHER XPERIA as follow the you tube tutorial . The ROM's for another Xperia, if I remember correctly.
After doing the installation process of the new AOSP ROM, the phone is less than a minute on the logo of SONY XPERIA down with, looped, can not enter the bootloader, and no longer recognizes the PC. I can not recognize it at FlashTool. I think that's all. :crying:
I greatly appreciate your attention.
I ended up editing this text in the google translator, then I'm sorry, if you are not very good.
Thank you

Matteus Maximo Felisberto said:
I tried to put AOSP 5.1 from FXP in my phone, and my cellphone bricked. It wont turn on, it keeps the Sony Logo 2 seconds. It haven't connection with flashtool. Please Help me.
Click to expand...
Click to collapse
Someone can help me please?

nibeal said:
Hi. Can you give me more information what you did exactly step by step. So maybe i can help you. My E3 was bricked too. I found a solution. But i need more information.
Click to expand...
Click to collapse
Could you help me? I can not make the pc recognize him ... He barely turns on and off since. The PC Companion software tells recognize it, but when you are installing the software says "it is not possible for this phone is changed." I can not scessar the bootloader does not give time and it shuts down.

Thanks, my error was with the fastboot driver and adb in flashtool. The Windows drivers wasn't been recognized, I've to install the drivers, all of they. After this, I Flashed the Stcok ROM, installed SuperSU and Restored the backup, everything works fine and fluid now. Thanks, anyway, for encouraging me.

I flashed my D2203 back to factory rom yesterday using Flashtool (flashtool.net/downloads.php) on Windows 7 PC.
How did I do it:
1) Install flashtool
2) Install Flashtool-drivers.exe from flashtool subfolder /drivers and select flashmode and fastboot drivers.
3) Run Flashtool and open XperiFirm (letters XF on logo)
4) Select Xperia E3 Flamingo -> proper D22** you have -> Market -> and select latest release below PayPal logo
5) Press "Download" and wait for download and unpacking
6) Switch off phone (if power on/off button does not respond then open back cover and push "OFF" by using pen)
7) Press and hold volume down button and connect phone to PC using original USB cable
8) Using Flashmode flash device

#1 newb has troubble with first time custom rom

Hi Friends, is the title says I have a problem getting into the custom rom think on my old z3 6603 .291? 6.0.1 i think android...
now whats my problem?
I am despered already! spent almost 2 full days trying around without luck.
little off topic:
I did custom roms a few years ago and it worked pretty well with a step by step tutorial.
now i started to read around and try to update the Z3 to android 7Nougat or at least GoogleStylev1 because the standard/stock rom is sooo full with s**t i never really used and pure clean 5.1 from my mothers 60€ Chinamobile is fast and has all i need...
the z3 is much slower than it could i belive and the batterylife should be longer(new replaced battery >3000mAh, its almost like my new s7edge, wich i have to recharge every 3 days, the sony almost every night...)
back to topic:
i read so many different ways to do the update and everything is super complicated and at some point it doesn´t work out like in the tutorials. stupiiiid..
for example: hold power+vol down to enter recoverymode utility, i tried it so many times but my z3 is booting as usual. somone mentioned to let power button go as soon the led blinks or the vibration appers. sad: my screen is replaced and as i replaced it by myself i disconnected the vibration and glued the backplate on ... sh**
maybe someone can tell me how many secods to wait until let the power button go or other ways of erasing the system before i continue with linage install.
what i have:
win7 pc ( lack of updates and stuff but i already got the insane big android studio and somehow installed the usb driveds as it seems but thats all i still have missing drivers as i connect the phone trough flash-tool for example. xperia companion detects the phone most of the time..
so i went to my mac mini os x..
similar but little better: i can detect the device when i connect flashtool it says device connected in flash mode, good!?
i downloaded:
flashtool-driver
android tools
flashtool 0.92.1mac
lineage14.1 xkeita
twrp 3.1.1 xkierta
sr1 super su v2.82
D6603 23.5.A.0.291_kernel.zip
D6603 23.5.A.0.575_kernel.zip
root.rar
I guess i first have to get a little XDA developer university degree to update a sony mobile device hummmm???
sorry i am stressed out, please could somebody take a newb like me by hand and guide trough this piece of complicated labyrinth?
I want to give this phone to my gf for the next few years and i whink a clean slim and stable system would be much more pleasure in future than what i have now.
its a nice phone...
thanks

forgot to mention, usb debugging and developer mode are activated on the phone.. when i type in the *#7384whatever code it says: bootload activation: yes does it mean its ready to be activated or is it already active?
please its so many steps and tutorials i tried i am comletely confused

HI, glad to hear you're trying to install my rom
Since you're already on 6.0.1 all you need to do is unlock your bootloader before flashing the custom rom. To do so please refer to this page which will provide all the help you need for this step https://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/ (before doing this, make a backup of your internal storage because it will be wiped after unlocking the bootloader)
After unlocking your bootloader, let's proceed to installing the recovery. To do this unpack the contents from the TWRP zip and copy recovery.img to the folder where you have fastboot.exe and run this command from Windows command line
Code:
fastboot flash FOTAKernel recovery.img
Now for our final step, boot into recovery by using the power on+volume down combo, connect your phone to the computer and copy the LineageOS zip to your internal storage. Before flashing the rom remember to wipe system/data/cache/dalvik. And you're all good to go.

thanks for replying xkeita,
i did this step until the point where i got a code for bootloader.
after this they tell me to go to connect my phone to the pc and to do what?
A. Install the Android SDK and the device drivers (what drivers? i have mac) i have android studio on my mac, but i have no clue how it works.
b. If you’re running OSX or Linux, you are not required to install any additional drivers. (check!)
2. On your device, turn on USB debugging by going to Settings > Developer options and click to enable USB debugging. (check!)
B. Connect to Fastboot
1. Turn off your Xperia™ Z3.
2. Connect a USB-cable to your computer.
3. On your Xperia™ Z3, press the Volume up button at the same time as you connect the other end of the USB-cable.
(check!) i did it...
4. When your device is connected, open a command window on your computer and go to the platform-tools folder within the Android SDK folder.
5. Enter the following command: fastboot devices
here i am struggeling... how to do this on mac? i have no directories and no idea how to proceed, please help me!

xdan00b#1 said:
thanks for replying xkeita,
i did this step until the point where i got a code for bootloader.
after this they tell me to go to connect my phone to the pc and to do what?
A. Install the Android SDK and the device drivers (what drivers? i have mac) i have android studio on my mac, but i have no clue how it works.
b. If you’re running OSX or Linux, you are not required to install any additional drivers. (check!)
2. On your device, turn on USB debugging by going to Settings > Developer options and click to enable USB debugging. (check!)
B. Connect to Fastboot
1. Turn off your Xperia™ Z3.
2. Connect a USB-cable to your computer.
3. On your Xperia™ Z3, press the Volume up button at the same time as you connect the other end of the USB-cable.
(check!) i did it...
4. When your device is connected, open a command window on your computer and go to the platform-tools folder within the Android SDK folder.
5. Enter the following command: fastboot devices
here i am struggeling... how to do this on mac? i have no directories and no idea how to proceed, please help me!
Click to expand...
Click to collapse
Extract this zip https://forum.xda-developers.com/attachment.php?attachmentid=1396782&d=1350078941 and open terminal in the directory where you have unpacked the zip, then you can run the command directly

Mac-mini:android "XXXXX"$ fastboot devices
-bash: fastboot: command not found
should any software run in the background like xperiacompanion or flash-tool? i managed to open the terminal in the android directory but no luck...
this z3 is a tough piece...

thanks again for your effort to help me out, maybe you or somebody else can help me trough this. I have the feeling that we can crack this device together, it cant be that compliceted, can it?

nobody has Ideas as what could be going wrong in my case?

i was thinking XdaDevelopers is a big international site, and z3 is a mainstream phone, why the heck is there nobody to guide me trough this
remember how it was when you did your first Rom experiances, difficult, many different new steps, after foing it couple of times its getting easier, like everything in life.
please somebody sacrifice a litte time on me and my priject, it wont be my last for sure but i need a little help in the beginning, xperia z3 seems to be much more complicated than my old (p880LG 4xhd or xpezia z from 2012)

xkeita said:
Extract this zip https://forum.xda-developers.com/attachment.php?attachmentid=1396782&d=1350078941 and open terminal in the directory where you have unpacked the zip, then you can run the command directly
Click to expand...
Click to collapse
do i have to extract on my mac, or onto the phone? i extracted into my desktop and it didnt work ether in desktop/android/
i am going to try out to extract onto the cellphones memory and to run fastboot line from there

should i record a video how i do all my steps and somebody can tell me what im doing wrong?
eeehh.. official sony webpage is so flapsy and unprecise when it comes to bootloader...

bump

did i say something wrong or..?

...

You should use windows instead of mac it's better for unlocking your bootloader then follow the sony unlock bootloader website exactly don't skip any steps

hello omar, and thanks for reply!
my problem is to unlock the bootlocker on this phone.. i cant get my phone bpptloader unlocked and i dont know why.. its the staps on this website that dont work. i will take time on weekend maybe and try again..

piece of crap phone , replaced screed and back and my girlfriend drops it once and everything is broken again many years ago sony was better. they should make walkmans again.. casette walkmans

Bricked my Xperia Xzs upon trying to downgrade OS

Hi everyone, im trying to downgrade my android to nougat and otw bricked the device. Im using flashtool to do this and the bad part is I forgot to turn on usb debug before. I tried using Xperia companion to fix this but and error came out saying "failure to get device info" kinda like. So is there any other way i can do this.
My phone is SOV35 au model with unlock bootloader not allowed but i flashed it to G8231 to unlock the sim. Any insight would really help on this. Thank you

First charge the phone.
Keep it switched off.
Here are the links
https://forum.xda-developers.com/xzs/how-to/oreo-xperia-xzs-g8232customized-ru1308-t3732394
There is a single sim.variant in he link too. Use Flashtool to flash these.
Start flashtool. Select appropriate firmware.
Click start flashing and then when it prompts.
Plug the cable in phone first and then pressing volume down plug it into PC. Wait until you see the green light in phone.
This should work.