Database Users

Is your Arc boot loader unlockable?

As the SE Dev blog said, not all new SE will have the Boot Loader unlockable, you have to test it with Fastboot: The only way to determine if you can unlock the boot loader for your phone is to connect your phone to the Fastboot tool in the Android™ SDK. If your phone can connect to Fastboot, the boot loader can be unlocked
SO! did you try it? and if yes what is your version of Arc and result?

Hey,
I figure my Rogers Arc is not able to unlock the bootloader (BL).
Everytime i try holding the Menu button then plugging in the USB the LED on the side should turn blue. Also the SE should not show up on the screen, in my case it did.
But when i went to the SE site to obtain the unique code, i was able to obtain one.
Now, what do you suggest in this case.
I've already rooted my device via gingerbreak.
Can i still use flashtool to load FW to my device with no probs? or do i still need to unlock the BL?
Thanks..

If the led doesn't turn blue when we press menu ,while the phone is powered off ,then the bootloader can't be unlocked???

If your arc is branded then it is not unlockable, yet.

need stock system image for Nexus S

My phone doesnot go past google logo.
Need the stock recovery and system image
I am thinking once i get them i should be able to run using FAstboot commands
without even unlocking(as fast boot oem unlock also not working for me) boot loader..somebody please confirm...

I tried fastboot update update.zip with Official 2.3.3 ROM but i get following error
archive does not contain 'android-info.txt'
archive does not contain 'android-product.txt'
error: update package has no android-info.txt or android-product.txt
My phone is not rooted neither the boot loader is unlocked( I have failed to unlock it with Fastboot OEM unlock)

First thing first... connect your phone and type "adb devices". Does your serial nr show up? Turn off your phone and boot into bootloader (hold vol up + power). Type "fastboot devices", does your serial nr show up? If not, adb and/or fastboot isn't recognizing your connection and device. If it does, you SHOULD be able to type "fastboot oem unlock" to unlock your bootloader.
Tip: you can view your bootlooader state on the device display when inside the loader. It says "State: LOCKED" or "State: UNLOCKED" respectively.

[ROM] Samsung stock D720 for Nexus S 4G
All else fails, this should get your phone back to factory.
http://forum.xda-developers.com/showthread.php?t=1072698
http://www.holylivingfuck.com/Crap/SamsungSimpleDL_D720(1.0.002).zip
MIRROR
http://www.fileserve.com/file/JnCgZkm

I have nexus s GSM(tmobile version) , anybody knows similar link like above for it.

jottosson said:
First thing first... connect your phone and type "adb devices". Does your serial nr show up? Turn off your phone and boot into bootloader (hold vol up + power). Type "fastboot devices", does your serial nr show up? If not, adb and/or fastboot isn't recognizing your connection and device. If it does, you SHOULD be able to type "fastboot oem unlock" to unlock your bootloader.
Tip: you can view your bootlooader state on the device display when inside the loader. It says "State: LOCKED" or "State: UNLOCKED" respectively.
Click to expand...
Click to collapse
when i run adb devices it doesnt display any device seems it needs usb debugging enabled which I cant do as mentioned above.
when i run fastboot devices , it does display my phone's serial number but when i run the command fastboot oem unlock my phone displays a confirmation to select "Yes or no" , i chose "yes" and hit the power button but then it doesnt do any thing it just stays there , i tried multiple times waited several mins to hours but no luck yet.
I am running all this on windows 7 64 bit computer .

http://forum.xda-developers.com/showthread.php?t=884416&highlight=STOCK
justsahid said:
when i run adb devices it doesnt display any device seems it needs usb debugging enabled which I cant do as mentioned above.
when i run fastboot devices , it does display my phone's serial number but when i run the command fastboot oem unlock my phone displays a confirmation to select "Yes or no" , i chose "yes" and hit the power button but then it doesnt do any thing it just stays there , i tried multiple times waited several mins to hours but no luck yet.
I am running all this on windows 7 64 bit computer .
Click to expand...
Click to collapse

cadams14 said:
http://forum.xda-developers.com/showthread.php?t=884416&highlight=STOCK
Click to expand...
Click to collapse
this doesnt work as it also asks to unlock botloader sing Fastboot oem unlock

i am also stuck in the same situation but i dont have a sprint 4g. is there any other links available?

Another one here. Same situation. Any resolutions yet?

jboxer said:
Another one here. Same situation. Any resolutions yet?
Click to expand...
Click to collapse
Here you go, set your phone to download mode and use ODIN to flash your phone (i9020) back to stock.
http://www.samfirmware.com/WEBPROTECT-i9020.htm

justsahid said:
My phone doesnot go past google logo.
Need the stock recovery and system image
I am thinking once i get them i should be able to run using FAstboot commands
without even unlocking(as fast boot oem unlock also not working for me) boot loader..somebody please confirm...
Click to expand...
Click to collapse
Check out that u hv installed driver properly for fastboot. Bootloader need to b unlocked for getting into Download mode.
Sent from my Nexus S using XDA App

zirra said:
Here you go, set your phone to download mode and use ODIN to flash your phone (i9020) back to stock.
http://www.samfirmware.com/WEBPROTECT-i9020.htm
Click to expand...
Click to collapse
This will work for the t? I was under the impression we didnt have any images for the 9020t version.
Edit: I just signed up for the site and everything, and it says nothing about being for the T version.

Yes that Odin package from Samfirmwares is for the I9020T. However it is not version 2.3.3, but rather 2.3.1 GRH78.

[info] What is Flashtool & Fastboot (updated 30/08-11).

It seems that people are confused with these to terms and some misguidens has occured. I started this thread to clear it up
1. Flashtool is like using pc companion or SEUS to flash a specific FW. It uses a .ftf file extension and works on phones with or without locked bootloaders. It can only flash stock roms. You get into flashtool mode by turning off your phone and pressing the hardware 'back' button and then connecting the USB cable to your phone. Done correctly and you should se a green light on the power button.
Link to flashtool. Make sure you use the beta version (0.2.9.1) wich is the one that supports our play.
http://forum.xda-developers.com/showthread.php?t=920746
2. Fastboot is a tool you use with a command promt (cmd) on your pc. It's only for people with unlocked bootloaders. It's used for flashing custom roms, kernels, splashscreens, custom recovery etc. everything modyfied. It is also used to unlock your bootloader. You get into fastboot mode by turning off your phone, then pressing the hardware 'search' button and connecting the USB to your phone. Done correctly and you should see a blue light on the power button. Afaik carrier and sim locked devices can't unlock the bootloader this way. If you fall under that category check this link out for help. It will cost you a little money, but by the response of people who already done it, itsems woth the dough
http://forum.xda-developers.com/showthread.php?t=1232050
A link to a thread started by RacecarBMW. It's a reference thread for easy access to info and links to roms/kernels/guides etc.
http://forum.xda-developers.com/showthread.php?t=1076660
Regards Dousan...

Unlocking bootloader

The guide for unlocking the Xperia Tablet Z's bootloader is now available
http://unlockbootloader.sonymobile.com/instructions
Same as the other xperias
Sent from my Sony Tablet S using xda app-developers app

Bricked device?
Hi all,
I just got my Xperia Tablet Z, played around with the stock ROM and decided to unlock the bootloader, in order to install CyanogenMod 10.1 RC2.
I followed the official Sony guide to unlock the boot loader, using a freshly downloaded ADT bundle on an Ubuntu 13.04 installation.
No problem at all to get through the unlocking process, I rebooted and I got through the initial configuration (on a clean system, as I expected).
Just after powering off the device, putting it in fastboot mode again, extracting boot.img from an md5-verified cm-10.1.0-RC2-pollux.zip I sent these commands:
sudo ./fastboot -i 0xfce flash boot boot.img
sudo ./fastboot -i 0xfce reboot
and pressing the volume rockers (+/- volume controls, right?) a few times, nothing happened except a red, still, LED.
After a couple of minutes, pressing the + volume again resulted in a halt of the device, and since then nothing happens. No way to get into fastboot mode again... I don't wish to be the first to brick the Xperia Tablet Z!
Is there a "hardware reset" or something like that?
Thanks for all the help,
bibe

You can try to flash your device using SUS.

Still stuck
Hondaracer said:
You can try to flash your device using SUS.
Click to expand...
Click to collapse
Thanks Hondaracer, but still no success: the device can't go into fastboot mode (required in step 2 of SUS). By the way, SUS asks to insert the USB cable while pressing Down volume, not Up as I did before. I tried both, of course, but no sign of activity.
Keeping power button and volume up pressed for 5-6 seconds makes the LED blink. Just after that, the tablet is supposed to reboot, but I get no visible sign of activity.
I also md5-checked the boot.img file after extracting it again from the cm file.

Locked Bootloader
My bootloader status says not allowed..
"Bootloader unlock allowed says No"
Is there anything I can do to unlock that?
I'm basically just wanting to install unbranded firmware. not liking the DoCoMo firmware..
Thanks

Unlocking
Might be of some help for some people...
My issue is im worried as I read somewhere that we need to back up the DRM codes or something to retain BRAVIA. anyone know how to back up the codes?
Unlock Bootloader Sony Xperia Tablet Z
May 20, 2013
SonyUnlock BootloaderXperia Tablet Z
To unlock your bootloader, you’ll first need a program to download and install the Android SDK (Software Developer Kit) from Google.
In order to unlock the bootloader on your Xperia Tablet Z you will need to obtain a code from Sony. The following process will help you acquire this code so that you can flash a custom recovery.
1.Open the Phone application on the Xperia Tablet Z and enter *#06# to obtain the device’s IMEI. Save this for later use.
2.Put the device into fastboot mode:
3.Open a terminal on the PC and enter fastboot -i 0x0fce getvar version
4.Navigate to unlockbootloader.sonymobile.com
•Agree to the ‘Are You Sure’ and ‘Legal Terms’ prompts to continue.
•Enter the first 14 digits of your IMEI from Step 1, enter a name and an email address.
•The unlock code should now appear, write this down for the next step.
5.In the PC’s terminal, enter the following command: fastboot -i 0x0fce oem unlock 0xKEY •KEY corresponds to the unlock code you were given.
The Xperia Tablet Z’s bootloader should now be unlocked.
Note:Unlocking the bootloader on a Sony device may automatically wipe internal storage; a backup of the sdcard is suggested.

jumper62 said:
The guide for unlocking the Xperia Tablet Z's bootloader is now available
Same as the other xperias
Sent from my Sony Tablet S using xda app-developers app
Click to expand...
Click to collapse
Hey Jumper
Do you know nything about retaining the bravia2 after unlocking BL?

shaun.s said:
Hey Jumper
Do you know nything about retaining the bravia2 after unlocking BL?
Click to expand...
Click to collapse
I'm pretty sure it stays. Why? Unlocking the bootloader just give us permission to put customs roms
Sent from my Sony Tablet S using xda app-developers app

You need ti back up the DRM keys. See threads in the Z and ZL forums.
Skickat från min Nexus 4

Q.Entity said:
You need ti back up the DRM keys. See threads in the Z and ZL forums.
Skickat från min Nexus 4
Click to expand...
Click to collapse
Yea I thought so.
I just cant find anything that's explaining the process..
I cant find where it says you will remove BRAVIA/DRM Keys if you unlock boot loader...
Once I do figure out how to back up DRM keys and then unlock boot loader how will one replace keys and will the boot loader need to be relocked again to gain BRAVIA again...or can you have BRAVIA on with unlocked bootloader..?
Thank you

[Tutorial] Xperia SP Bootloader Unlocking/Relocking

Quick tutorial for unlocking & relocking the bootloader of the Xperia SP
this is the official way to unlock bootloader
if you want to keep ur DRM keys, first root device and then check this out
Warning!
This procedure will wipe the /data partition of your phone, so you will loose all ur stored data, settings. INTERNAL SDCARD will BE WIPED!!!
For Xperia™ devices released 2013 or later (for example Xperia™ Z and Xperia™ ZL), the SD card of your device will be formatted and you will lose all content (for example photos, music, videos) when you unlock the boot loader.
Click to expand...
Click to collapse
DRM keys WILL be lost forever
schaggo said:
I'd add what losing DRM keys means, e.g. no more Music ID/Gracenote within the Walkman app plus probably most importantly, as asked all the time and all over the place in the T/mint forums: loss of Bravia Engine.
Click to expand...
Click to collapse
older Xperia devices sometimes got issues after unlock of bootloader (BRICK after FOTA update) - you have been warned
why to unlock bootloader?
u can flash custom ROMs/Kernels
u dont need to worry if the new firmware can be rooted or not as with unlocked bootloader u can always ROOT ur device
Sony gives sneak-peaks/preview builds of latest OS which requires unlocked bootloaders, as they did with Xperia 2011/2012 line, so who knows may be Sony may give early builds of next android OS
Most of this is taken from lollylost100's his tutorial from ARC thread (all credits for that concise tutorial go to him, i have elaborated on a few things and added device specific changes)
[ before we begin unlocking bootloader ]
get the IMEI code for ur device: type *#06# in phone dialer to find it out, note only the digits (no dashes)
download the fastboot package
IMPORTANT: if you are using Windows 8 you will need to enable few things to allow driver installation
download the latest FlashTool Xperia Driver Pack and install fastboot drivers (common) & adb drivers for this device from the list!
make sure u have a windows PC with USB cable to connect the phone
power down ur phone and keeping the Volume Up button pressed connect the USB cable to PC this will trigger FASTBOOT mode and windows will start driver installation, which should be automatically done
once drivers are installed just disconnect cable and power on device
[ how to unlock ] (official way)
Go to: http://unlockbootloader.sonymobile.com/ and read everything!
At the bottom click 'Start Unlocking the Bootloader'
First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu.
In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
Click to expand...
Click to collapse
after u have verified that u can unlock bootloader, scroll to the bottom of the page and click "Continue"
you will get numerous prompts, read all info and if u agree click on "Accept"/"OK"/"Proceed"
finally u will get a "Create Unlock request" page, enter your IMEI (sometimes the last digit needs to be removed for this to work), name and email address
You should now receive your unique unlock key via EMAIL, SAVE THIS KEY SAFELY
Extract fastboot_with_Android_USB_file.rar and open fastboot folder
Hold SHIFT and right click on the background of the folder
Select 'Open command window here'
Connect your phone in fastboot mode (turn phone off, hold Volume UP button and plug in USB Cable) [make sure drivers are installed as explained above)
In the cmd windows type in fastboot.exe -i 0x0fce getvar version
If a value is returned (it will return 0.5), it means the phone is correctly connected
Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key which u received earlier.
You're device should now be bootloader unlocked
If this tutorial is too much for you then itskapil wrote a step-by-step guide (and recorded a video also):
-Instructions: http://www.theandroidsoul.com/how-to-unlock-bootloader-xperia-arc-play-neo-pro/
-Video: http://www.youtube.com/watch?v=LRH3pC7MhEA
(the above videos and some steps are for Xperia 2011 devices, but most the steps are same for Xperia SP)
Relock procedure is posted here

Relocking Bootloader
With the latest release of Flashtool it is now possible to relock bootloader.
Download the latest flashtool from:
http://forum.xda-developers.com/showthread.php?t=2162907
Important
DO NOT USE ANY FTF TO RELOCK BOOTLOADER! THOSE OLD FTFs DO NOT WORK FOR THE 2013 DEVICES!!!
before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock
Steps:
now start Flashtool and click on BLU button
u will be asked to connect device in flashmode
once u connect the device u will get a prompt to "Relock"
click on it and when prompted disconnect the device

Mmm my device says that its not allowed for unlock (see the attachment) it means that i cant to unlock my bootloader for ever???theres not another method for to do it??????? what can be the reason for that its not allowed????? Sorry for my bad english and thanks
Sent from my C5303 using xda premium

@SERGI.3210
maybe your question could better fit Q&A section..
Anyway, try to unlock the bootloader despite the unlockinh allowed status
Sometimes you can unlock it even with "unlocking allowed:no"
(Btw if you care about the drm keys, make a backup of the TA partition before proceed)
Sent from my LT26i using xda app-developers app

Txh budy going to try this...
Sent from my C5303 using xda premium
I did the question in the q and a forum but no one answered me ..

please help
firmware: 12.0.A.1.211
C5302

zlebors said:
please help
firmware: 12.0.A.1.211
C5302
Click to expand...
Click to collapse
You must run cmd in directory of fastboot.exe
Sent from my C5302 using xda premium

kuriboo said:
You must run cmd in directory of fastboot.exe
Sent from my C5302 using xda premium
Click to expand...
Click to collapse
I dont have the fastboot.exe file, would you please re-upload coz the link is broken

What do I have to back up before I try this? And how to back those up.
My bootloader is 'no' but I have SIM unlocked it and going to give it a shot as was told by somebody that it could work, cheers.
Sent from my C5303 using xda app-developers app

Ok so I have a strange problem. I got my Xperia SP c5303 today and I'm using Windows 8 x64. I already managed to root the phone on the .257 firmware. When I try to connect the device in fastboot mode (holding volume + and plugging the usb cable to the computer), the LED turns blue and for a brief moment in device manager I can see that there is a device called Sony Fastboot Interface. The problem is, a little notification appears on my computer that the device wasn't recognized even though it appears to be installed correctly in device manager, and after about 5 seconds the phone automatically changes to charge mode.
I tried using Flashtool and when I plugged the phone in fastboot it did recognize it, but just for the 5 seconds that it stays that way. I already disabled driver signature enforcement and installed all Flashboot drivers but the phone just doesn't stay in fastboot mode.
BTW: Bootloader unlock allowed says yes

OsoAlgo said:
Ok so I have a strange problem. I got my Xperia SP c5303 today and I'm using Windows 8 x64. I already managed to root the phone on the .257 firmware. When I try to connect the device in fastboot mode (holding volume + and plugging the usb cable to the computer), the LED turns blue and for a brief moment in device manager I can see that there is a device called Sony Fastboot Interface. The problem is, a little notification appears on my computer that the device wasn't recognized even though it appears to be installed correctly in device manager, and after about 5 seconds the phone automatically changes to charge mode.
I tried using Flashtool and when I plugged the phone in fastboot it did recognize it, but just for the 5 seconds that it stays that way. I already disabled driver signature enforcement and installed all Flashboot drivers but the phone just doesn't stay in fastboot mode.
BTW: Bootloader unlock allowed says yes
Click to expand...
Click to collapse
Try to install drivers with this instruction http://forum.xda-developers.com/showthread.php?t=2170114
Sent from my C5303 using xda app-developers app

alivanov79 said:
Try to install drivers with this instruction http://forum.xda-developers.com/showthread.php?t=2170114
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
I saw that guide and I was going to try it but the phone doesn't stay long enough to be able to do it, once it changes to charging mode then it stops appearing in Device Manager.

I searched online and seems that a lot of people were having this problem with the Xperia line. In most cases it says that it's because drivers are not installed, but I believe I already installed them correctly. Here is how the device appears on my computer but it still automatically changes to charging mode after a couple of seconds.
EDIT: Oh man, someone please erase my posts haha, I actually confused the USB 3.0 and 2.0 in my computer... I connected the phone to a USB 2.0 port and it was detected correctly, I was able to unlock the bootloader.
EDIT2: How do you check if the bootloader is actually unlocked? (Just to be sure)

Do I have to leave my SD inserted when I unlock the bootloader so I won't lose all my data?

pakatsui said:
Do I have to leave my SD inserted when I unlock the bootloader so I won't lose all my data?
Click to expand...
Click to collapse
The external microSD card will not be deleted if you use Flashtool to unlock or relock the bootloader, only the first time you unlock it by the official Sony website. Even with that I think it doesn't wipe the external microSD

But is it safe to remove the external microSD before starting the unlocking process? I remember that I would get a bootloop on my old phone if I didn't have a microSD inserted while flashing stock rom.

DooMLoRD said:
Quick tutorial for unlocking & relocking the bootloader of the Xperia SP
this is the official way to unlock bootloader
if you want to keep ur DRM keys, first root device and then check this out
Warning!
This procedure will wipe the /data partition of your phone, so you will loose all ur stored data, settings. INTERNAL SDCARD will BE WIPED!!!
DRM keys WILL be lost forever
older Xperia devices sometimes got issues after unlock of bootloader (BRICK after FOTA update) - you have been warned
why to unlock bootloader?
u can flash custom ROMs/Kernels
u dont need to worry if the new firmware can be rooted or not as with unlocked bootloader u can always ROOT ur device
Sony gives sneak-peaks/preview builds of latest OS which requires unlocked bootloaders, as they did with Xperia 2011/2012 line, so who knows may be Sony may give early builds of next android OS
Most of this is taken from lollylost100's his tutorial from ARC thread (all credits for that concise tutorial go to him, i have elaborated on a few things and added device specific changes)
[ before we begin unlocking bootloader ]
get the IMEI code for ur device: type *#06# in phone dialer to find it out, note only the digits (no dashes)
download the fastboot package with usb drivers (alternate drivers if the ones in package dont work OR this)
IMPORTANT: if you are using Windows 8 you will need to enable few things to allow driver installation
make sure u have a windows PC with USB cable to connect the phone
power down ur phone and keeping the Volume Up button pressed connect the USB cable to PC this will trigger FASTBOOT mode and windows will start driver installation, extract the above package and point the driver install to that location (usb_driver) folder
once drivers are installed just disconnect cable and power on device
[ how to unlock ] (official way)
Go to: http://unlockbootloader.sonymobile.com/ and read everything!
At the bottom click 'Start Unlocking the Bootloader'
after u have verified that u can unlock bootloader, scroll to the bottom of the page and click "Continue"
you will get numerous prompts, read all info and if u agree click on "Accept"/"OK"/"Proceed"
finally u will get a "Create Unlock request" page, enter your IMEI (sometimes the last digit needs to be removed for this to work), name and email address
You should now receive your unique unlock key via EMAIL, SAVE THIS KEY SAFELY
Extract fastboot_with_Android_USB_file.rar and open fastboot folder
Hold SHIFT and right click on the background of the folder
Select 'Open command window here'
Connect your phone in fastboot mode (turn phone off, hold Volume UP button and plug in USB Cable) [make sure drivers are installed as explained above)
In the cmd windows type in fastboot.exe -i 0x0fce getvar version
If a value is returned (it will return 0.5), it means the phone is correctly connected
Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key which u received earlier.
You're device should now be bootloader unlocked
If this tutorial is too much for you then itskapil wrote a step-by-step guide (and recorded a video also):
-Instructions: http://www.theandroidsoul.com/how-to-unlock-bootloader-xperia-arc-play-neo-pro/
-Video: http://www.youtube.com/watch?v=LRH3pC7MhEA
(the above videos and some steps are for Xperia 2011 devices, but most the steps are same for Xperia SP)
Relock procedure is posted here
Click to expand...
Click to collapse
Sir, any mirror link?? I want to download fastboot package to unlock my xsp. Thanks
Sent from my C5302 using XDA Premium 4 mobile app

agileart said:
Sir, any mirror link?? I want to download fastboot package to unlock my xsp. Thanks
Sent from my C5302 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
No response? I guess that means no then.

agileart said:
Sir, any mirror link?? I want to download fastboot package to unlock my xsp. Thanks
Sent from my C5302 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
fastboot.rar

My device doesn't stay in fastboot mode for more than 5 seconds :/
Can somebody help?