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hi all i am having many doubts regarding installing custom rom please help me...
my doubts are
1.Do i need to unlock my boot loader to update my baseband
2.Will the unlocked boot loader stay always so that i can flash many kernel and custom rom or do i need to unlock each time
3.After unlocking which case should i relock my baseband
i am sorry if these questions are very basic i am very much confused
1.No, it is nor required to unlock the bootloader to update the baseband.
2.Yes, it will always stay unlocked even if you restore with PC Companion or SEUS.
3.You should relock it if you are sending the phone for repair at Sony Ericsson.
First check manufacture date before proceding to unlock bootloader.
Sent from my E15i using XDA
As said above, check manufacturingdate. IF above 11w29 then dont try to unlock. Chances are youll be ending upp with a brick.
Sent from my X8 using XDA
Thank you everyone now my doubts have been cleared thank you all
sorry i am having another last doubt
Do i need to unlock my boot loader to update my kernel
Yep, it's a must.
Sent from my X8 to your screen
praveenkumarkm8 said:
sorry i am having another last doubt
Do i need to unlock my boot loader to update my kernel
Click to expand...
Click to collapse
If it is an offical update from SE, that doesn't need to unlock.
If it is kernel, rom bla bla bla from this FORUM, Mostly rom will need you to use the kernel, thus it is a must to unlock the bootloader.
So, if you're using original eclair, planning update it, there's is no risk except for electrical trip suddenly happen
praveenkumarkm8 said:
sorry i am having another last doubt
Do i need to unlock my boot loader to update my kernel
Click to expand...
Click to collapse
yes!
if you're not unlock your BL, you can not flash your kernel.. so u can brick your phone..
use C1 tool or flashhtool to check it man..
Hi there.
After i unlocked* the bootloader of my phone i got stuck in a bootloop, then i had to flash the TFT all over again...
The problem is that i don't know if the phone is already with bootloader unlocked or not...
how can i check it?
I was thinking on trying to do the unlock steps again, but i'm scared of being trapped on another bootloop...
Is there a way to check if the bootloader is already unlocked?
PS: The bootloader unlock allowed is yes.
thanks you guys.
Flash doom kernel via fastboot with this command:
Fastboot flash boot boot.img
If you get an error than your bootloader is not unlocked.
You can flash back to stock kernel with flashtool,flash the kernel separately.
Sent from my C6603 using xda premium
but if i got that error and confirm that the bootloader is locked, is there any chance to harm the phone? or need to flash the TFT again, etc etc
use flashtool to tell you
Another more easy approach .
When bootloader unlock allowed says yes and be2 is working in Album, then it is still locked and you can start the unlock steps again.
How can i use flashtool to tell me?
@DevShaft
Before i could see in a flash the bravia engine working on pictures. There was a little delay... Now i can't see it.
Probably the bootloader is unlock.
If i try to install Doom's kernel via recovery and the bootloader is LOCKED, can it do any harm? thanks guys
Faelz said:
How can i use flashtool to tell me?
@DevShaft
Before i could see in a flash the bravia engine working on pictures. There was a little delay... Now i can't see it.
Probably the bootloader is unlock.
If i try to install Doom's kernel via recovery and the bootloader is LOCKED, can it do any harm? thanks guys
Click to expand...
Click to collapse
bootloop and u will have to use FTF to fix it.
Thanks man.
I'll wait the new firmware or android 4.2 to see it.
thanks everyone.
Faelz said:
Thanks man.
I'll wait the new firmware or android 4.2 to see it.
thanks everyone.
Click to expand...
Click to collapse
4.2? gluck waiting lol
G1_enthusiast said:
4.2? gluck waiting lol
Click to expand...
Click to collapse
people said that the new firmwere is comming with 4.2...
i dont bother to wait xD
DevShaft said:
Another more easy approach .
When bootloader unlock allowed says yes and be2 is working in Album, then it is still locked and you can start the unlock steps again.
Click to expand...
Click to collapse
I unlocked my Xperia Z and in Service Mode I can see 'Bootloader unlocked: Yes'.
Now my phone is running on latest C6603 firmware and DooM Kernel.
To my surprise, BE2 still works! Music info download still works! TrackID still works!:victory:
But not picture enhancement in album right? Hope you backed up TA partition before unlocking
Sent from my C6603 using xda app-developers app
im surprised at how this 'check bootloader is unlocked already or not' thread is confusing.
by the previous post, there is two 2 ways
1. try to flash doomlords kernel via fastboot, and if it doesnt flash means its NOT unlocked.
2. flashtool.
however the 2. flashtool method is very vague.. dont think anyone elaborated it.
So my same query is that if some error occurs after trying to unlock bootloader, and have reverted back to the stock FTF rom in original working state.
How do one check to see if my bootloader is unlocked or not?
whats the best easiest method???
Thank you!
just type in *#*#7378423#*#*
Go to Service Info > Configuration
And check the Rooting Status
If its Bootloader unlock allowed:Yes/No, then its not unlocked.
And if its Bootloader unlocked:Yes, then its unlocked.
Thanks
vinay.uchil said:
just type in *#*#7378423#*#*
Go to Service Info > Configuration
And check the Rooting Status
If its Bootloader unlock allowed:Yes/No, then its not unlocked.
And if its Bootloader unlocked:Yes, then its unlocked.
Thanks
Click to expand...
Click to collapse
My bootloader is locked but by ur process it shows its unlocked which is not true...
vinay.uchil said:
just type in *#*#7378423#*#*
Go to Service Info > Configuration
And check the Rooting Status
If its Bootloader unlock allowed:Yes/No, then its not unlocked.
And if its Bootloader unlocked:Yes, then its unlocked.
Thanks
Click to expand...
Click to collapse
That just tells you weather you can unlock your bootloader via the command / flashtool e.g. If you carrier has locked your phone
On a unlocked bootloader the BE2 engine still works on videos ect just not pictures.
All I would do Is flash doom kernel or advanced stock kernel via flashtool (Click on lightning bolt /fast boot / click on put device in fastboot via adb now phone will enter fastboot then select kernel to flash which is in the middle on the pop up screen and then flash if it will take around 0 . 5 seconds ) if it fails then you bootloader is locked due to it cannot complete the command if is successful then it's unlocked and you can flash custom kernels take about 2 mins to do all in all
Sent from my C6603 using XDA Premium 4 mobile app
unblock SM-G350E bootloader
Can any one tell me how to unlock bootloader for SM-G350E
Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh
josh1quattro said:
Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh
Click to expand...
Click to collapse
This thread has steps for relocking the bootloader - http://forum.xda-developers.com/showthread.php?t=2092227, they were using a Xperia V so you'll need to use a different FTF file for your Xperia T- http://forum.xda-developers.com/showthread.php?t=1924221
josh1quattro said:
Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh
Click to expand...
Click to collapse
the link provided by our friend is quite good, that's where you have to head over
and about the tutorial, tha't so easy, just flash that FTF file via Flashtools
power off your phone, open flashtools, select flash logo, then FLASH MODE, then connect your phone as you are pressing down the VOLUME DOWN button, and let it do the rest
disconnect and enjoy your relocked bootloader
So I won't need to re flash the rom again? sorry. I'm a bit of a noob at phone modding. Pc's I can do. Not phones yet. Hahaha.
no, flash the relock ftf found in the dev section, and it just relocks your bootloader, your rom will stay the same
josh1quattro said:
So I won't need to re flash the rom again? sorry. I'm a bit of a noob at phone modding. Pc's I can do. Not phones yet. Hahaha.
Click to expand...
Click to collapse
RElock won't affect you rom, BUT if you unlcok AGAIN, then at the very first start up of the phone when it is the first time after RE-UNlocking, it will have a factory reset
just wanted to let you know
but for now, NO, it won't touch your firmware
Just done it. Worked. Cheers guys,
josh1quattro said:
Just done it. Worked. Cheers guys,
Click to expand...
Click to collapse
pressing Thank button is a better option, instead of saying "cheers", believe me
happy to see you made it, bro
Relocking Xperia T
BarneyJ said:
This thread has steps for relocking the bootloader - http://forum.xda-developers.com/showthread.php?t=2092227, they were using a Xperia V so you'll need to use a different FTF file for your Xperia T- http://forum.xda-developers.com/showthread.php?t=1924221
Click to expand...
Click to collapse
I want to relock ma Xperia T via EMMA Flashtool...I have downloaded the relock xperia t.ftf file...but i dont know how to drage and drop the file to Emma service list..plz help..ma device is near dead...
engrizhar said:
I want to relock ma Xperia T via EMMA Flashtool...I have downloaded the relock xperia t.ftf file...but i dont know how to drage and drop the file to Emma service list..plz help..ma device is near dead...
Click to expand...
Click to collapse
Use flashtool
Hi guys,
I unlocked the bootloader of my C5302 using fastboot and rooted it successfully.
Now I'm trying to relock the bootloader following these instructions but, after relocking, the phone is unable to boot.
Note that when I unlock again the bootloader (still using Flashtool) the phone can start without any problem.
I saw that a stock kernel is needed to relock bootloader so I installed this kernel but I still have the problem.
Anyone has an idea ?
Thanks by advance
chioubaca said:
Hi guys,
I unlocked the bootloader of my C5302 using fastboot and rooted it successfully.
Now I'm trying to relock the bootloader following these instructions but, after relocking, the phone is unable to boot.
Note that when I unlock again the bootloader (still using Flashtool) the phone can start without any problem.
I saw that a stock kernel is needed to relock bootloader so I installed this kernel but I still have the problem.
Anyone has an idea ?
Thanks by advance
Click to expand...
Click to collapse
That's not stock anymore since its been rooted and modded a little. But I haven't tried locking BL ever, so wouldn't know. However, try flashing kernel.sin from the ftf and then try relocking
Didn't work either.
Do you where I can find stock kernel ?
you'll find stock kernels here: http://forum.xda-developers.com/showthread.php?t=2405933
chioubaca said:
Didn't work either.
Do you where I can find stock kernel ?
Click to expand...
Click to collapse
Below are the stock kernels, giving 2 one is for .257's stock firmware and other of 2.245's hope you can relock your bootloader and can boot into your phone
Stock Kernel of .257
https://docs.google.com/file/d/0ByLEF_1DMsLfUFZyNDAtOE5QcTA/edit?usp=sharing
Stock Kernel of 2.245
https://docs.google.com/file/d/0ByLEF_1DMsLfc213S3BUZjdkSG8/edit?usp=sharing
**************************************************************************************************************************************************************************
Hit Thanks if I've helped you.
Thanks a lot: I managed to relock my phone and boot it using the stock kernel you sent me
chioubaca said:
Thanks a lot: I managed to relock my phone and boot it using the stock kernel you sent me
Click to expand...
Click to collapse
Ma Pleasure D:
**************************************************************************************************************************************************************************
Hit Thanks if I've helped you.
Hey!
My SP has a locked bootloader and I can't unlock it because it isn't allowed.
But I want to install FXP CM11. As I can't acces fastboot mode can I flash the boot.img file through CWM if a make a flashable zip file from it(android.stackexchange.com/questions/36265/flash-boot-img-without-using-fastboot-usb)? If yes, how to make it? I don't really get that description. Thanks in advance.:fingers-crossed:
koostamas said:
Hey!
My SP has a locked bootloader and I can't unlock it because it isn't allowed.
But I want to install FXP CM11. As I can't acces fastboot mode can I flash the boot.img file through CWM if a make a flashable zip file from it(android.stackexchange.com/questions/36265/flash-boot-img-without-using-fastboot-usb)? If yes, how to make it? I don't really get that description. Thanks in advance.:fingers-crossed:
Click to expand...
Click to collapse
AFAIK changing kernel in locked bootloader could result in brick, not bootloop. CMIIW, but you should be careful with carrier locked bootloader
You can't install custom kernel on a locked bootloader you will get error not installed..... Even if installed it won't boot up, you will end up with a very stylish paper weight.
DON'T EVEN TRY TO MAKE IT WORK.
just accept it can't be done and install a custom stock rom instead
Sent from my C5303 using Tapatalk
You can flash the boot.img
But then your phone will be a brick
So I wouldn't recommend it
i didnt had ay problem in flashing boot.img on locked bootloader
panagiotisgr said:
i didnt had ay problem in flashing boot.img on locked bootloader
Click to expand...
Click to collapse
Do you think these people are lying or something?
The whole point of a locked bootloader is that you cant modify kernel - the reason you can only used stock based ROMs.
If you can successfully flash a boot.img then yours is not locked.
Someone please correct me if i'm wrong.
yo-meister said:
Do you think these people are lying or something?
The whole point of a locked bootloader is that you cant modify kernel - the reason you can only used stock based ROMs.
If you can successfully flash a boot.img then yours is not locked.
Someone please correct me if i'm wrong.
Click to expand...
Click to collapse
omg im so sorry i thought i write unlocked. mine is unlocked. not locked. replying while in move not a good idea
panagiotisgr said:
omg im so sorry i thought i write unlocked. mine is unlocked. not locked. replying while in move not a good idea
Click to expand...
Click to collapse
Wow, you almost killed me
As highlighted in posts above and around the forum, it is not possible. This discussion can't go any further so..
Thread closed