Develop Bugs

[Q] Bootloader

How do I check if my xperia arc's bootlader if its locked or unlocked? Do i need to run fastboot using pc or I can just check the phone's info and I will know if its already unlocked. Thanks

As far as I know, all new arc comes with locked bootloader. You have to go to their site to follow procedure unlocking it and you need to give your imei number.
- Sent from my Sony Arc

IF U HAVE NOT UNLOCKED THE BOOTLOADER BY YOURSELF,THEN IT IS LOCKED
SE does not supply phone with unlocked bootloaders,,,,,u have to unlock them by yourself
EDIT:- YO,YO I AM A SENIOR MEMBER NOW.........YOYOYOYOYO......JUST KIDDING.

When I bought it they flashed it for me with lt15i firmware already and also sim unlocked it. I am assuming that they did unlock bootloader too I am not sure though so I wanna check it I still need to bootloader unlock it.
Thanks

jon3sh said:
When I bought it they flashed it for me with lt15i firmware already and also sim unlocked it. I am assuming that they did unlock bootloader too I am not sure though so I wanna check it I still need to bootloader unlock it.
Thanks
Click to expand...
Click to collapse
flashing se firmware and sim unlocking do not require boot loader unlocking

You need to have an UNBRANDED phone.. if you do then look here to see if you can unlcok the BL.. http://unlockbootloader.sonyericsson.com/instructions

tsangwc said:
flashing se firmware and sim unlocking do not require boot loader unlocking
Click to expand...
Click to collapse
Yeah I know that but how do I know or where can I check it if its already bootloader unlocked or not?

try using your trackid.. if its not working, means ur phone's bootloader is unlocked..

kiz1983 said:
try using your trackid.. if its not working, means ur phone's bootloader is unlocked..
Click to expand...
Click to collapse
Cool!!! So I opened track ID and it show charts and history I tried Track ID and it identifies the track. So that means its already unlocked then.
Thanks for all the infos.

jon3sh said:
Cool!!! So I opened track ID and it show charts and history I tried Track ID and it identifies the track. So that means its already unlocked then.
Thanks for all the infos.
Click to expand...
Click to collapse
it means the bootloader of your phone is locked...........

jon3sh said:
Cool!!! So I opened track ID and it show charts and history I tried Track ID and it identifies the track. So that means its already unlocked then.
Thanks for all the infos.
Click to expand...
Click to collapse
it means ur bootloader is locked..
unlocked bootloader cant use trackid as it erases the DRM in the phone..

abhisheak.bansal said:
it means the bootloader of your phone is locked...........
Click to expand...
Click to collapse
Damn I didnt even finish reading the post above lol I guess I will be doin it then.

Do not unlock bl right now

abhisheak.bansal said:
Do not unlock bl right now
Click to expand...
Click to collapse
Why not? Just curiousity.

Why do u want to unlock?

To be able to install third party or maybe flash with custom rom in the future.

only unlock when custom roms is released...there is no advantage in unlocking in advance...........

abhisheak.bansal said:
only unlock when custom roms is released...there is no advantage in unlocking in advance...........
Click to expand...
Click to collapse
Cool Thanks I will not do it then it just took 2.3.3 update yesterday and everything working fine. Couple more thing, do I need to format card and how do you do it using menu? What is APK and what does it do after installing it to SD card?
Thanks for your help very much appreciated.

it depends upon you,if u want to format u can format,otherwise there is no specific need to format
i am not having a arc,so i dont know how to format it using menu,but i guess format option must be present somewhere in file manager or settings........
APK is the file extension of android software's......
installing it to sd card will save your phone memory space and reduces phone laggs or slow down...........

abhisheak.bansal said:
it depends upon you,if u want to format u can format,otherwise there is no specific need to format
i am not having a arc,so i dont know how to format it using menu,but i guess format option must be present somewhere in file manager or settings........
APK is the file extension of android software's......
installing it to sd card will save your phone memory space and reduces phone laggs or slow down...........
Click to expand...
Click to collapse
Thank you for all your replies.

Xperia Acro......root? unlock? fastboot? anything?

Hey guys,
Just picked up the Japanese Xperia Acro with au/KDDI in Japan. From what I gathered, the phone is almost exactly the same as the Xperia Arc, only difference in name, so I felt it'd be best to post here.
Anyway, great phone, but I'm desperate to root it and then overclock the processor. Thing is, it's branded with the carrier, so I'm unable to access fastboot loader. (Holding menu and plugging in usb doesn't trigger blue light)
Considering this is my first Android phone, I'm literally stuck on where to go from here. Is it impossible for me to root this phone and load custom firmware due to it being locked with the carrier? Am I really stuck with an untinkerable phone?
Appreciate your help guys...

I can unlock your bootloader remotely and enable fastboot for you
The process uses testpoint which is in a different position from the Arc

Jinx13 said:
I can unlock your bootloader remotely and enable fastboot for you
The process uses testpoint which is in a different position from the Arc
Click to expand...
Click to collapse
Sounds good!
How can I arrange this?

Hi Jinx13. Would you be able to remotely unlock the bootloader on my Xperia Arc? I've tried searching through forums for the past couple of days to unlock the bootloader but can't manage it. I'm with Rogers Canada, I unlocked the sim and debranded the phone (I think).
Thanks.

pete_xperia_arc said:
Hi Jinx13. Would you be able to remotely unlock the bootloader on my Xperia Arc? I've tried searching through forums for the past couple of days to unlock the bootloader but can't manage it. I'm with Rogers Canada, I unlocked the sim and debranded the phone (I think).
Thanks.
Click to expand...
Click to collapse
Yeah sure contact me via PM
Sent from my LT15i using xda premium

Jinx13 said:
Yeah sure contact me via PM
Sent from my LT15i using xda premium
Click to expand...
Click to collapse
Excuse me. could you advise if the tool "SE Extreme Tweaker for ALL 2011 Models" can be used for au IS11S acro?
There was same question in the thread but there is no answer.
http://forum.xda-developers.com/showthread.php?t=1356253

gpx606 said:
Excuse me. could you advise if the tool "SE Extreme Tweaker for ALL 2011 Models" can be used for au IS11S acro?
There was same question in the thread but there is no answer.
http://forum.xda-developers.com/showthread.php?t=1356253
Click to expand...
Click to collapse
Sorry I cannot comment on that as I do not know.
Jinx13

Sony Ericsson Xperia acro IS11S Au KDDI
cphil19 said:
Hey guys,
Just picked up the Japanese Xperia Acro with au/KDDI in Japan. From what I gathered, the phone is almost exactly the same as the Xperia Arc, only difference in name, so I felt it'd be best to post here.
Anyway, great phone, but I'm desperate to root it and then overclock the processor. Thing is, it's branded with the carrier, so I'm unable to access fastboot loader. (Holding menu and plugging in usb doesn't trigger blue light)
Considering this is my first Android phone, I'm literally stuck on where to go from here. Is it impossible for me to root this phone and load custom firmware due to it being locked with the carrier? Am I really stuck with an untinkerable phone?
Appreciate your help guys...
Click to expand...
Click to collapse
---------------------------------------------------------------------------------------------------------------------
I have same phone and now i have a galaxy note 3 too so i don't use acro anymore. so i wanted to root my acro phone. i know what you are going throw because acro phone is unable to root. So i flashed the firmware and then i could root my phone and everything is working fine. Originally my acro had "IS11S_4.0.1.B.0.118_au" firmware so i flashed it in to "IS11S_4.0.1.B.0.112_KDDI" then i could root acro. if you want to know all the steps let me know i'll post all the steps.
Good Luck.!

Hi DeadCode, can you please post the steps for the above sony xperia is11s to put on IS11S_4.0.1.B.0.112_KDDI.ftf ?
Also, do you know if this phone could be used in UK?
Thanks

Ok sure. Please wait im my phone xda app and i just woke up. I'll post the steps soon as possible.
Sent from my SCL22 using XDA Free mobile app

Install Flastools and Flashing a new firmware
BadSeeds said:
Hi DeadCode, can you please post the steps for the above sony xperia is11s to put on IS11S_4.0.1.B.0.112_KDDI.ftf ?
Also, do you know if this phone could be used in UK?
Thanks
Click to expand...
Click to collapse
Also, do you know if this phone could be used in UK?
Click to expand...
Click to collapse
- I don't know you can use it in UK or not. But i think if you can find CDMA mobile network provider yo may have a chance to use it. Also you may need you sim unlock.
Install Flastools and Flashing a new firmware
OK this is how i flash my firmware.
I have a Windows 8.1 running PC so this is the steps i did.
First you need to download two files so first download below files.
IS11S_4.0.1.B.0.112_KDDI.ftf
https://mega.co.nz/#!kVInSCQQ!bx7sX1izriRgHK14dmXC1r2LEKTZ4By6CBW5UjAcqww
flashtool-0.9.18.3-windows.exe
https://mega.co.nz/#!JVpBjTaI!fV-1JgQm7-bmMbL-xBxYOKhDAMZcS-aUsIreEm_gvFk
Then you need to install flashtool-0.9.18.3-windows.exe. Just double click and install it and Remember the installing folder (Example - "C:\Flashtool" or "C:\Program Files\Flashtool" like that) and then go to that folder. Inside that folder go to drivers folder and install Flashtool-drivers.exe. Click next check the Flashmode Drivers and Fastboot Drivers (Very important you select those) and go down the menu and select the phone model (Read all well). Then install. If your installation finis without warning errors then you ok. If your installation finis with warning errors then do next step.
Go to PC Settings (Charms Bar) > Change PC Settings > Update And Recovery > Recovery > Restart Now (Advanced Startup)
it will restart to Advance Startup automatically
In Advance Startup -
Troubleshoot > Advanced Settings > Start-up Settings > Restart
After rebooted you will get a screen says. Here to choose options for that we have to use function keys. Now press "F7" to select "Disable Driver Signature Enforcement" .
Now your PC will boot with Disabled Driver Signature Enforcement and you will be able to install Flashtool/Fastboot drivers. so again install the Flashtool-drivers.exe and will finish without errors.
after that again go to falshtool installed folder and go to Firmwares folder and if you see any files already on that firmwares folder delete them. Then copy IS11S_4.0.1.B.0.112_KDDI.ftf file that you download before to firmwares folder. and then run FlashTool.exe (If your PC 64bit then run FlashTool64.exe)
Now on your device go to (Very important to do all the steps below)
01. settings > Application settings > Development > check USB debugging
02. settings > Application settings > uncheck Unknown sources
03. settings > Sony Ericsson > Connectivity > USB connection mode > choose Mass storage mode
Then connect your device to PC using Original USB cable.
Go to flashtool software click on flash icon.
Then chose Flashmode > ok
Then new window will open (Firmware Selector) then you can see the IS11S_4.0.1.B.0.112_KDDI.ftf file already on that.
Now just click on FLASH.!
That's all wait it to finish. and your device will restart automatically. and DONE.!
I couldn't remember where i download those files but i already had those so i upload it for you and anyone who want to download those.
And if this post helps you then be kind enough to click on THANKS for me.!
Enjoy.!
By - DeadCode - Knowledge is free

Thanks for the instructions, I will give them a try.
Do you know if it is possible to unlock the bootloader on this model? Service menu days its not possible?
Thanks

BadSeeds said:
Thanks for the instructions, I will give them a try.
Do you know if it is possible to unlock the bootloader on this model? Service menu days its not possible?
Thanks
Click to expand...
Click to collapse
I didn't try to unlock it because im not using that phone anymore sorry
Sent from my SCL22 using XDA Free mobile app

[Q] How can I tell if my bootloader is unlocked?

Hi all,
I know, usual question, but in the configuration menu thing, it shows everything as zero, and says "Bootloader unlock allowed - yes"
I bought it new from a store, and it doesn't have any operator branding on it if that helps.

Your bootloader is locked until you unlock it. The phone does not come with the bootloader already unlocked unless you buy it second hand.
Sent from my R800i using XDA

bootloader
question i go to check if bootloader is unlocked it says nothing not yes or no??? stumped on this i have a xperia play 800at phone is sim unlocked too

If you have phone off, and hold on to either "back" or "search"(i cant remember which) and you plug in USB to computer and get blue light your bootloader is unlocked. I think its the "search" button, but I know the other button gives a greenlight and is fastboot mode where the blue light is flash mode.
Ios suckkss.

cyrusalmighty said:
If you have phone off, and hold on to either "back" or "search"(i cant remember which) and you plug in USB to computer and get blue light your bootloader is unlocked. I think its the "search" button, but I know the other button gives a greenlight and is fastboot mode where the blue light is flash mode.
Ios suckkss.
Click to expand...
Click to collapse
Other way around, flashmode (back) is green light. Fastboot (search) is blue light

jacklebott said:
Other way around, flashmode (back) is green light. Fastboot (search) is blue light
Click to expand...
Click to collapse
y i can see the green and blue light
but are you sure it mean it is unlocked? If u are right it would be shocking since i didn't want to unlock my BL.
But I just rooted with SuperOneClick. And as far as I read it shouldn't touch the BL?
and: Fastboot is not = unlocked
Fastboot jst gives you the ability to unlock

Actually, if your light is blue it means you have access to Fastboot, so you can unlock your bootloader with that tool (which is free of charge). Unlocking it or not is up to you.

kool ill give that a try and see what happens you guys are the best thanks
---------- Post added at 01:53 PM ---------- Previous post was at 01:50 PM ----------
ok i tried that and all i got was a flash of blue by holding the search button while phone was off is that correct or is that wrong?

sportstj11 said:
kool ill give that a try and see what happens you guys are the best thanks
---------- Post added at 01:53 PM ---------- Previous post was at 01:50 PM ----------
ok i tried that and all i got was a flash of blue by holding the search button while phone was off is that correct or is that wrong?
Click to expand...
Click to collapse
if u want to know if you device CAN BE unlcoked - just follow the sony instrucktions
http://unlockbootloader.sonymobile.com/instruction
just type the given numbers in the phone and follow service menu
But still my questions is - how can we see wether its unlocked yet?
All the above is just about the ABILITY to unlock and not the actualy state.

If you unlocked it, then its unlocked if you didn't then its not.
If you have a second hand phone or something then try flashing a custom kernel if its not unlocked it will fail. That's the only way I would know of to check.
Sent from my R800i using XDA

http://forum.xda-developers.com/showthread.php?t=1254087&page=53
download the attached zip extract and run the s1 identify tool
click the link above and read the thread its from the x10 forum but the tool supports xperia play to

If your bootloader is unlocked...the stock TrackID app will not work until u update it....if it gives an error then 90% chance ur bootloader is unlocked...

there is only one by which you can check wether your bootlader is unlock or not
this is only for sony mobiles
SEUS update,if the bootloader is unlocked you cant update through SEUS and vice versa.

bootloader question.
Sorry if this question has been asked i could not find anything in the search. I tried to root my xperia s a few days ago. i got the bootloader unloacked properly but i messed up the rooting part. After about 2 days of blindly faffing about i successfully re-flashed GB. Does doing this re-lock the bootloader? Is there an easy way of finding out? Cheers guys. There was alot of fumbling about trying to flash completely the wrong thing as i'm totally new to this phone!

Reflashing GB doesn't relock the bootloader. If you want to do that you'll have to flash it back with a file, this a thread to do that somewhere
Sent from my R800i using xda app-developers app

locked unlocked
I root my ics in xpria p and in rooting I flash a kernel .544 and reflash .54
is that mean that I have an unlocked bootlaoder ?
If I has it will gone if I upgrade to jelly bean

Arafeh94 said:
I root my ics in xpria p and in rooting I flash a kernel .544 and reflash .54
is that mean that I have an unlocked bootlaoder ?
If I has it will gone if I upgrade to jelly bean
Click to expand...
Click to collapse
No, and there is no official jelly bean.
Please learn to spell check, xperia p or xperia play?
Sent from my R800i using Tapatalk 2

man where you live?
The rom is from 24/4/2013!!!!!!!!!!!!!!!!!!

Arafeh94 said:
man where you live?
The rom is from 24/4/2013!!!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
There is no official jelly bean for xperia play so stop arguing about it please if you mean xperia p your in the wrong forun
Sent from my Xperia Play (r800x)

try update using OTA
if you're brick that mean you're bootloader is unlocked

unlock bootloader on unlock allowed no

Hi I would like to know if theirs a way to unlock bootloader still with status no when going though service menu on this compact is this by rom choice default locked or firmware need a downgrade and then upgrade to custom. Or is theri more to it as dont want to brick my compact

No way, sorry.
Sent from my D5503 using xda premium

mentalghost said:
Hi I would like to know if theirs a way to unlock bootloader still with status no when going though service menu on this compact is this by rom choice default locked or firmware need a downgrade and then upgrade to custom. Or is theri more to it as dont want to brick my compact
Click to expand...
Click to collapse
You will never be able to unlock the bootloader on that phone, unless your carrier can give you some kind of code to change your unlock status (not sure this is even possible).

Rekoil said:
You will never be able to unlock the bootloader on that phone, unless your carrier can give you some kind of code to change your unlock status (not sure this is even possible).
Click to expand...
Click to collapse
I can get the unlock code not a problem to unlock phone to any network. am already waiting for that from o2 so can use on any network but will this work or is it a septate code that is used for bootloader or somthing

mentalghost said:
I can get the unlock code not a problem to unlock phone to any network. am already waiting for that from o2 so can use on any network but will this work or is it a septate code that is used for bootloader or somthing
Click to expand...
Click to collapse
The BL is different, if it came from O2 then chances are you cant unlock the BL.

So there is no chance? It worked with xperia arc and omnius. Costs about 15$, that would be ok. But will it work with our z1c in the near future? Or is it just "luck" to find an exploit?

reellamer said:
So there is no chance?
Click to expand...
Click to collapse
NO.

XperienceD said:
NO.
Click to expand...
Click to collapse
Well nothing is impossible, but it isn't likely as it requires a bootloader exploit. Realistically it isn't going to happen though, unless some smart people devote a lot of time to it. The most likely scenario (using test point to gain more software access) would require hardware tampering.

Hello Mentalghost,
Unfortunately there is no way to unlock the bootloader when the status is "No".
Have a great day, cheers!
Sent from my D5503 using Tapatalk

mentalghost said:
Hi I would like to know if theirs a way to unlock bootloader still with status no when going though service menu on this compact is this by rom choice default locked or firmware need a downgrade and then upgrade to custom. Or is theri more to it as dont want to brick my compact
Click to expand...
Click to collapse
MentalGhost, where did you purchase your phone? This phone isn't sold by any carriers in the USA, to the best of my knowledge, so the bootloader shouldn't be locked.

thatguy222 said:
MentalGhost, where did you purchase your phone? This phone isn't sold by any carriers in the USA, to the best of my knowledge, so the bootloader shouldn't be locked.
Click to expand...
Click to collapse
Bought in UK where I am not in USA. Might take back to shop where bought from and see if got any others in lol
Or wait for locked bootloader versions or someone makes modded version with unlocked rom that is been modded like one where you install modded that is unlocked install and then can unlock bootloader did in xperia s I use to have was a modded rom that was originally saying bootloader unlock no and added new Base rom and then said bootloadr unlock yes maybe this will happen on this phone in time or locked bootloader kernels and rom come along

mentalghost said:
Bought in UK where I am not in USA. Might take back to shop where bought from and see if got any others in lol
Click to expand...
Click to collapse
I'd recommend to anyone that is still able to return a Phone to do so because I think you'll find you'll be waiting a long time for a solution.

XperienceD said:
I'd recommend to anyone that is still able to return a Phone to do so because I think you'll find you'll be waiting a long time for a solution.
Click to expand...
Click to collapse
Plus, there will be no solution. The reason why Xperia Arc S and other 2011 Xperias worked with testpoint method was because of that there was a big security flaw in the security of the testpoints nand access, but those flaws have been fixed in newer Xperias and newer 2011 Xperias also.

devstaff said:
Plus, there will be no solution.
Click to expand...
Click to collapse
+1 It was coming to that realization that I sold my O2 locked Z after 6 months to buy an unbranded Z1 Compact. It worked out cheaper too spending hundreds of pounds up front for my Phone with the added bonus of having access to all of it.

What happens if you still follow the instructions on how to do it? I didn't check if it was allowed and I'm stuck in bootloop and I can't flash via flashtool,

tunnna said:
What happens if you still follow the instructions on how to do it? I didn't check if it was allowed and I'm stuck in bootloop and I can't flash via flashtool,
Click to expand...
Click to collapse
See here - http://forum.xda-developers.com/showthread.php?p=49928704, power off the Phone and reflash.

XperienceD said:
See here - http://forum.xda-developers.com/showthread.php?p=49928704, power off the Phone and reflash.
Click to expand...
Click to collapse
Yes I've tried it but flashtool gets stuck on processing loader. I waited over 10min with 0% progress on flashtool.

tunnna said:
I waited over 10min with 0% progress on flashtool.
Click to expand...
Click to collapse
Once or twice?

XperienceD said:
Once or twice?
Click to expand...
Click to collapse
thrice with different roms
---------- Post added at 11:17 PM ---------- Previous post was at 11:05 PM ----------
I can give you more info if you tell me what you need to know

XperienceD said:
Once or twice?
Click to expand...
Click to collapse
Ok solved... I had an old version of flashtool running... -.- :laugh:

Xperia M doesn't boot after unlocking bootloader

HELP NEEDED!
Hi guys,
So I tried to unlock bootloader on my Xperia M (C1904). And after unlocking, it doesn't boot anymore. Just shows "Sony", and "Xperia", then the wave animation forever.
First of all, I access to Sony Developer World for unlock bootloader key, then used flashtool's BLU feature. It successfully completed and said "Device will reboot into system now" However it showed the wave animation forever, (waited for around 20 or more minutes) but there was no change, so I flashed stock .ftf file via Flashmode. HOWEVER, everything was the same as before.
Then I used BLU feature again to try Re-locking the bootloader, but it said that "Processing of loader.sin finished with errors." and "Your phone bootloader cannot be officially unlocked". I am sure that my XM is bootloader unlocking supported, and flashtool successfully finished unlocking.
I searched around the Internet and found many people is having same problem with me.
I DID try using Sony PC Companion to repair the software, but as you can imagine. It simply showed ERROR.
I need your help as fast as possible.
Thank you, and sorry for my bad English btw.
PS I did read XDA threads about this problem, but nothing helped much.

Reflesh the ROM stock in Flashtools
Flesha ROM original no flashtols

xperiaum said:
HELP NEEDED!
Hi guys,
So I tried to unlock bootloader on my Xperia M (C1904). And after unlocking, it doesn't boot anymore. Just shows "Sony", and "Xperia", then the wave animation forever.
First of all, I access to Sony Developer World for unlock bootloader key, then used flashtool's BLU feature. It successfully completed and said "Device will reboot into system now" However it showed the wave animation forever, (waited for around 20 or more minutes) but there was no change, so I flashed stock .ftf file via Flashmode. HOWEVER, everything was the same as before.
Then I used BLU feature again to try Re-locking the bootloader, but it said that "Processing of loader.sin finished with errors." and "Your phone bootloader cannot be officially unlocked". I am sure that my XM is bootloader unlocking supported, and flashtool successfully finished unlocking.
I searched around the Internet and found many people is having same problem with me.
I DID try using Sony PC Companion to repair the software, but as you can imagine. It simply showed ERROR.
I need your help as fast as possible.
Thank you, and sorry for my bad English btw.
PS I did read XDA threads about this problem, but nothing helped much.
Click to expand...
Click to collapse
Buddy download stock firmware that works with your device(c1904) and I have heard that newley flashtool have some bugs most of the peoples found it difficult to use due to error so download a old version of flashtool.
Here is the link for flashtool that I use
https://drive.google.com/file/d/0B3WS5xjTt_0tQTZzQmNiZFc0R2M/view?pref=2&pli=1
It works smooth and don't forget to install drivers for xperia M found in C:/Flashtool/drivers after unpacking flashtool

Thank you guys for helping me.
I tried re-locking and flashed the stock firmware, and now my XM is working normally again.
Now, the question is, "Is there a way to safely unlock bootloader without soft bricking?"

xperiaum said:
Thank you guys for helping me.
I tried re-locking and flashed the stock firmware, and now my XM is working normally again.
Now, the question is, "Is there a way to safely unlock bootloader without soft bricking?"
Click to expand...
Click to collapse
Here
http://forum.xda-developers.com/showthread.php?t=2484622

KayM6.0.1 said:
Reflesh the ROM stock in Flashtools
Flesha ROM original no flashtols
Click to expand...
Click to collapse
matrixex said:
[/HIDE]
Buddy download stock firmware that works with your device(c1904) and I have heard that newley flashtool have some bugs most of the peoples found it difficult to use due to error so download a old version of flashtool.
Here is the link for flashtool that I use
https://drive.google.com/file/d/0B3WS5xjTt_0tQTZzQmNiZFc0R2M/view?pref=2&pli=1
It works smooth and don't forget to install drivers for xperia M found in C:/Flashtool/drivers after unpacking flashtool.
If you are still facing problem than PM me I will help you to download SONY Original Stock Firmware(country wise) and how to create a ftf for your device.
It really worked for me.
Click to expand...
Click to collapse
KayM6.0.1 said:
Here
http://forum.xda-developers.com/showthread.php?t=2484622
Click to expand...
Click to collapse
I did follow those steps yesterday, and flashtool said it DID unlock the bootloader, but my phone didn't boot at all and all those things happened. Should I try the same steps again and see if it works this time?

xperiaum said:
I did follow those steps yesterday, and flashtool said it DID unlock the bootloader, but my phone didn't boot at all and all those things happened. Should I try the same steps again and see if it works this time?
Click to expand...
Click to collapse
Try the above code and see if this unlocked

KayM6.0.1 said:
Try the above code and see if this unlocked
Click to expand...
Click to collapse
So you mean that I should try to unlock it again? Currently it's not.

xperiaum said:
So you mean that I should try to unlock it again? Currently it's not.
Click to expand...
Click to collapse
Yes! But first try the code *#*#7378423#*#* to see if it worked
I can answer in Portuguese ?
I am Brazilian my English is not very good

KayM6.0.1 said:
Yes! But first try the code *#*#7378423#*#* to see if it worked
I can answer in Portuguese ?
I am Brazilian my English is not very good
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Haha, sorry but I don't speak Portuguese. I did try *#*#7378423#*#* and it says that the bootloader is unlockable. I will try to unlock it again using flashtool and report how it goes. Thx.

xperiaum said:
Haha, sorry but I don't speak Portuguese. I did try *#*#7378423#*#* and it says that the bootloader is unlockable. I will try to unlock it again using flashtool and report how it goes. Thx.
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entedes espanhol?
---------- Post added at 01:27 PM ---------- Previous post was at 01:25 PM ----------
xperiaum said:
Haha, sorry but I don't speak Portuguese. I did try *#*#7378423#*#* and it says that the bootloader is unlockable. I will try to unlock it again using flashtool and report how it goes. Thx.
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https://www.youtube.com/watch?v=b0tBdDmtYB4
Here and in SPANISH but teaches step by step
good lucky!

KayM6.0.1 said:
entedes espanhol?
---------- Post added at 01:27 PM ---------- Previous post was at 01:25 PM ----------
https://www.youtube.com/watch?v=b0tBdDmtYB4
Here and in SPANISH but teaches step by step
good lucky!
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Click to collapse
Spanish teacher, well... a bit difficult for me
So I tried it again, and I successfully unlocked this time!!
Then I flashed AOSP 6.0! surprise!
Well, so thanks a lot for your kind help man! Now my phone's running the latest Rom

xperiaum said:
Spanish teacher, well... a bit difficult for me
So I tried it again, and I successfully unlocked this time!!
Then I flashed AOSP 6.0! surprise!
Well, so thanks a lot for your kind help man! Now my phone's running the latest Rom
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You're welcome! I am using the Ressurection remix 5.6.3 in my XMdual

xperiaum said:
HELP NEEDED!
Hi guys,
So I tried to unlock bootloader on my Xperia M (C1904). And after unlocking, it doesn't boot anymore. Just shows "Sony", and "Xperia", then the wave animation forever.
First of all, I access to Sony Developer World for unlock bootloader key, then used flashtool's BLU feature. It successfully completed and said "Device will reboot into system now" However it showed the wave animation forever, (waited for around 20 or more minutes) but there was no change, so I flashed stock .ftf file via Flashmode. HOWEVER, everything was the same as before.
Then I used BLU feature again to try Re-locking the bootloader, but it said that "Processing of loader.sin finished with errors." and "Your phone bootloader cannot be officially unlocked". I am sure that my XM is bootloader unlocking supported, and flashtool successfully finished unlocking.
I searched around the Internet and found many people is having same problem with me.
I DID try using Sony PC Companion to repair the software, but as you can imagine. It simply showed ERROR.
I need your help as fast as possible.
Thank you, and sorry for my bad English btw.
PS I did read XDA threads about this problem, but nothing helped much.
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KayM6.0.1 said:
You're welcome! I am using the Ressurection remix 5.6.3 in my XMdual
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So problem solved everybody try cyanogenmod 13 nightly by PeacnCM
supports all Nicki device fast s fluid just give it a try .

flashtool bug
I had similar problems as described in the first thread.
My flashtool version was 0.9.19.8 and during the blu-process the level meter stucks.
With "new" version 09.18.1 - as mentioned in one of the early replys - everything worked well.

xperiaum said:
Thank you guys for helping me.
I tried re-locking and flashed the stock firmware, and now my XM is working normally again.
Now, the question is, "Is there a way to safely unlock bootloader without soft bricking?"
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Buddy for first time soft bricking happens with all it happened with me too because for first time the DRM keys (a kind of key used to get sony official support and update OTA) get wiped forever since DRM keys are integral part of BOOT so it will led to softbrick only for first time after that you can easily unlock or relock your Device

matrixex said:
Buddy for first time soft bricking happens with all it happened with me too because for first time the DRM keys (a kind of key used to get sony official support and update OTA) get wiped forever since DRM keys are integral part of BOOT so it will led to softbrick only for first time after that you can easily unlock or relock your Device
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I see, didn't know that. It didn't happen when I unlocked bootloader on my Xperia U and... X10.

xperiaum said:
I see, didn't know that. It didn't happen when I unlocked bootloader on my Xperia U and... X10.
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I an 100%sure because i have unlocked my two devices both are xperia M Dual and bricked(bootloop) and I am 100% due to loosing DRM Keys. And don't reply or continue this comment the END

I am facing a similar issue.......
Unlocked by fastboot..... received [okay]....... seemed Unlocked and then bootloop....
After flashing again with the stock rom [generated by Flashtool decryption of Sony PC companion folder C:\ProgramData\Sony Mobile\Update Engine\db\13740270\blob_fs]....... I am not able to install TWRP recovery...
Now I am not sure whether the bootloader is locked or unlocked......
Is there a way to check........ further I intend to install CM13........ how to proceed...

ijsa said:
I am facing a similar issue.......
Unlocked by fastboot..... received [okay]....... seemed Unlocked and then bootloop....
After flashing again with the stock rom [generated by Flashtool decryption of Sony PC companion folder C:\ProgramData\Sony Mobile\Update Engine\db\13740270\blob_fs]....... I am not able to install TWRP recovery...
Now I am not sure whether the bootloader is locked or unlocked......
Is there a way to check........ further I intend to install CM13........ how to proceed...
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Well, you should be able to check if your device is unlocked when you connect to flashtool, can't you?