Database Develop

relocking and going back to original state

Is it possible to relock a bootloader and flash a stock rom onto the phone so normal sony updates will work after trying something like Cyanogen? Just wondering for future knowledge.
I think if i'm right you can lock the bootloader with fastboot oem lock, but not sure if the flashed stock rom then takes sony updates?

rsmarsha said:
Is it possible to relock a bootloader and flash a stock rom onto the phone so normal sony updates will work after trying something like Cyanogen? Just wondering for future knowledge.
I think if i'm right you can lock the bootloader with fastboot oem lock, but not sure if the flashed stock rom then takes sony updates?
Click to expand...
Click to collapse
Yes it is. Flash a relock ftf file and once you do that normal updates can be installed.

Spectre51 said:
Yes it is. Flash a relock ftf file and once you do that normal updates can be installed.
Click to expand...
Click to collapse
Thanks, having a major crisis at the moment. cm10 was buggy for me and didn't work. Now I can't get the phone to boot without errors and can't get flashtool to recognise the phone. I just want to go back to how it was now to have a phone that works.

I downloaded flashtool but the phone doesn't seem to boot half the time and when it does it's buggy. It's not seen by flashtool correctly, seems some drivers are no longer working for it.
I did download a stock rom (pre rooted) but despite flashing that the phone still seems to have cm10 on when I boot up. I'm thinking I'll just go back to stock if I can somehow manage to do it, the latest stock as the problem with my phone initially was it wouldn't complete the stock updates.

Spectre51 said:
Yes it is. Flash a relock ftf file and once you do that normal updates can be installed.
Click to expand...
Click to collapse
The phone now shows up as an MTP USB Device which fails to start, it no longer boots and I can't get it into recovery.

Do you have a Xperia T? Did you use this to relock the bootloader?
http://forum.xda-developers.com/showthread.php?t=1924221
Sent from my Sony Xperia™ ion

rsmarsha said:
The phone now shows up as an MTP USB Device which fails to start, it no longer boots and I can't get it into recovery.
Click to expand...
Click to collapse
Once you relocked the bootloader then the cm10 custom kernel would not be able to load as it needs an unlocked bootloader.
Follow these steps.
Download and install flashtool
Download a stock ftf from the all in one thread for your phone (Dont worry about the fw version, but if you want to root it should be an early one, eg .303 or .305)
Open flashtool
Drag and drop the ftf into the open window of flashtool
Turn phone off, wait 30 seconds
Attach USB cabe to PC, then to phone. WHilst connecting to phone press and hold volume down button.
It should now work, if it doesnt copy and paste the flashtool log here
I know you have said your pc does not recognise your phone, but please try this exactly as i have said and post the log if it does not work.

Thanks that does work and I am now on. 195.should I relock bootloader to get updates or flash manually each time?
Sent from my LT30p using xda app-developers app

will Bravia Engine and TrackID work after relocking ?

dubist said:
will Bravia Engine and TrackID work after relocking ?
Click to expand...
Click to collapse
Trackid works fine with unlocked bootloader. To get bravo engine back you have to do some extra work. Heck out the thread in the Xperia S dev section to see how they got it working again.
Sent from my Sony Xperia™ ion

ok finally getting around to doing relock. I can't get flashtool to see the ftf i drag in, nothing happens.

There a thread on mobile bravia engine trying to fix this problem. See thread below :-
http://forum.xda-developers.com/showthread.php?t=2127775

[Q] FAILED <remote: command not allowed>

im having trouble trying to root my phone again after it crashed and had to start from beginning. When i try fastboot flash boot Z_DooMLoRD_CF-Auto-Root-ported_FW-350.img it gives me fails and says FAILED <Remote: command not allowed> does any body know what im doing wrong? I managed to root it teh first time no problem.
Cheers

sturtz1987 said:
im having trouble trying to root my phone again after it crashed and had to start from beginning. When i try fastboot flash boot Z_DooMLoRD_CF-Auto-Root-ported_FW-350.img it gives me fails and says FAILED <Remote: command not allowed> does any body know what im doing wrong? I managed to root it teh first time no problem.
Cheers
Click to expand...
Click to collapse
Is you bootloader unlocked?

krabappel2548 said:
Is you bootloader unlocked?
Click to expand...
Click to collapse
yes the bootloader is unloack but i had my phone rooted before then had to use pc companion to repair it, ive unlocked it again to be sure.

It seems driver problem.
I met the same problem as well as others yesterday, when I unlock, relock, re-unlock, root locked, root unlocked, flash recovery... for some crazy reason.
Try these:
Connect to flashtool (beta2 or beta4) with device power-on debug off, to see if flashtool can recognize it, and how much it can recognize.
Connect to flashtool with device power-on debug on , to see if flashtool can recognize it.
Connect to flashtool with device in fastboot mode, to see if flashtool can recognize it.
Connect to flashtool with device in flashmode, to see if flashtool can recognize it.
Flashtool may fix some driver error. I just succeeded after hours of bungling like that.
Good luck.

orc.x.lei said:
It seems driver problem.
I met the same problem as well as others yesterday, when I unlock, relock, re-unlock, root locked, root unlocked, flash recovery... for some crazy reason.
Try these:
Connect to flashtool (beta2 or beta4) with device power-on debug off, to see if flashtool can recognize it, and how much it can recognize.
Connect to flashtool with device power-on debug on , to see if flashtool can recognize it.
Connect to flashtool with device in fastboot mode, to see if flashtool can recognize it.
Connect to flashtool with device in flashmode, to see if flashtool can recognize it.
Flashtool may fix some driver error. I just succeeded after hours of bungling like that.
Good luck.
Click to expand...
Click to collapse
Thank you i got it by turning of debugging mode, strange it worked but cheers

I have this problem as well, tried doing above things, uninstalling drivers, reinstalling - help appreciated.

and Phone is working normal but after 5 second reboot and FC 's
Plz Help

same issue...
Has anyone found a sure fix for the issue presented by the original post? I am having this issue and I have tried different drivers, ftf's, computers, adb/fastboot/versions and flashtool versions. I have unlocked and relocked. Is rooting status "unknown" normal after bootloader unlock? -Z Ultra 6833 EU

Still no solution?
With my C6603 it does not allow to write boot aswell. Any final solutions?
edit: solution found: bootloader was not unlocked

Error flashing kernel
I use an xperia M..
I was trying to install custom rom in it.. and every time i try to flash a kernel using any flashtool, it says FAILED (remote: Command not allowed)
what should i do?? please, someone help me..

aravindjr said:
I use an xperia M..
I was trying to install custom rom in it.. and every time i try to flash a kernel using any flashtool, it says FAILED (remote: Command not allowed)
what should i do?? please, someone help me..
Click to expand...
Click to collapse
This is the wrong forum to ask this. This is the Xperia Z section.
Despite that, you need to unlock your bootloader to flash kernels via fastboot.
Sent from my C6603 using Tapatalk

After months using stock everything I decided to flash CM11 yesterday, I'm doing exactly same step as I was doing when on 4.1/4.2 but it seems like it doesn't works, I'm not even sure that my BL is unlocked despite success message, when trying to reboot after unlock BL I had a bootloop and when trying to recover with Sony's Flashtool it says 'device not unlocked'. So I repaired with PCC and restarted from scratch but same results today.
I'm totally lost as like I said I was doing exactly same thing on the same PC.
Edit : Now my XZ doesn't even start! I have the red led blinking while connected with usb, power+ Vol+ doesn't do anything, no vibrations at all!
I was on latest sony official ROM
Edit2 : Tryied again to recover with Sony's Flashtool but it says "Mobile Locked" that's crazy!

aravindjr said:
I use an xperia M..
I was trying to install custom rom in it.. and every time i try to flash a kernel using any flashtool, it says FAILED (remote: Command not allowed)
what should i do?? please, someone help me..
Click to expand...
Click to collapse
Check PM

Relax!
4.3 introduced a new security feature. Look up "unlock bootloader 4.3 xperia z" for help :good:
babylonbwoy said:
After months using stock everything I decided to flash CM11 yesterday, I'm doing exactly same step as I was doing when on 4.1/4.2 but it seems like it doesn't works, I'm not even sure that my BL is unlocked despite success message, when trying to reboot after unlock BL I had a bootloop and when trying to recover with Sony's Flashtool it says 'device not unlocked'. So I repaired with PCC and restarted from scratch but same results today.
I'm totally lost as like I said I was doing exactly same thing on the same PC.
Edit : Now my XZ doesn't even start! I have the red led blinking while connected with usb, power+ Vol+ doesn't do anything, no vibrations at all!
I was on latest sony official ROM
Edit2 : Tryied again to recover with Sony's Flashtool but it says "Mobile Locked" that's crazy!
Click to expand...
Click to collapse

BatteryAidFree said:
4.3 introduced a new security feature. Look up "unlock bootloader 4.3 xperia z" for help :good:
Click to expand...
Click to collapse
I know I'm late but thanks anyway, just updated to 4.4.4 today, I'll look to your advice, thanks for replying, you're the only one that took time to write few words to help.

Hope it goes well!
babylonbwoy said:
I know I'm late but thanks anyway, just updated to 4.4.4 today, I'll look to your advice, thanks for replying, you're the only one that took time to write few words to help.
Click to expand...
Click to collapse
You're welcome! The only thing I can think is if you want to install/rate 5 stars my app, would be greatly appreciated! ("Battery Aid" - I can't post the link apparently, "To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!")

use flashtool to writ kernel

fastboot remote command not allowed Xperia Z3
I unlocked my boatloader, but have no way to confirm that it is still unlocked. I'm running Windows 7. Fastboot used to work just fine before I unlocked my bootloader. FLASHTOOL works fine. But if I try to flash anything with fastboot I get the remote command error. Can't flash recovery. Can't flash boot image.

stevenmanzano said:
I unlocked my boatloader, but have no way to confirm that it is still unlocked. I'm running Windows 7. Fastboot used to work just fine before I unlocked my bootloader. FLASHTOOL works fine. But if I try to flash anything with fastboot I get the remote command error. Can't flash recovery. Can't flash boot image.
Click to expand...
Click to collapse
Look in the service menu to confirm if your bootloader is unlocked.
Enter *#*#7378423#*#* in the dialler, then look in Service info -> Configuration. It will say "Bootloader unlocked: Yes" if it's unlocked.
Sent from my C6603

solved remote command not allowed
stevenmanzano said:
I unlocked my boatloader, but have no way to confirm that it is still unlocked. I'm running Windows 7. Fastboot used to work just fine before I unlocked my bootloader. FLASHTOOL works fine. But if I try to flash anything with fastboot I get the remote command error. Can't flash recovery. Can't flash boot image.
Click to expand...
Click to collapse
By installing FLASHTOOL by Sony I was instantly notified that my bootloader was not unlocked, even though I had already unlocked it three or four times without any errors. So I unlocked it again. Then fastboot flashed my images just fine.

[Q] Xperia Z .253 Bootloader Unlocking issue? Its Boot looping... :(

I just updated my firmware before trying to unlock bootloader... did every step correctly as in official way & as stated in... http://forum.xda-developers.com/showthread.php?t=2153261
Now phone is boot looping.. it restarts in mid of xperia startup animation..
Tried to repair with sony pc companion.. it says cant repair, phone has modified software..
What can i do to start it back as stock..? & how to unlock bootloader..?
I want to install Z-DooMKernel-v06 to undervolt...
I'm sorry if similar question is there.... i was not able to find..

h.ars_h said:
I just updated my firmware before trying to unlock bootloader... did every step correctly as in official way & as stated in... http://forum.xda-developers.com/showthread.php?t=2153261
Now phone is boot looping.. it restarts in mid of xperia startup animation..
Tried to repair with sony pc companion.. it says cant repair, phone has modified software..
What can i do to start it back as stock..? & how to unlock bootloader..?
I want to install Z-DooMKernel-v06 to undervolt...
I'm sorry if similar question is there.... i was not able to find..
Click to expand...
Click to collapse
i suggest to get to stock and if boot loop solved then try to unlock bootloader and root it
:good:

http://forum.xda-developers.com/showthread.php?t=2240614
Sent from my C6603 using xda premium

I agree with what is being said here. However I would recommend that you flash back to .434 first that these methods have worked for many times, and it is more known version for attempting this.

h.ars_h said:
I just updated my firmware before trying to unlock bootloader... did every step correctly as in official way & as stated in... http://forum.xda-developers.com/showthread.php?t=2153261
Now phone is boot looping.. it restarts in mid of xperia startup animation..
Tried to repair with sony pc companion.. it says cant repair, phone has modified software..
What can i do to start it back as stock..? & how to unlock bootloader..?
I want to install Z-DooMKernel-v06 to undervolt...
I'm sorry if similar question is there.... i was not able to find..
Click to expand...
Click to collapse
Just reflash the .253 with a full wipe using flashtool.. it's bit trickyto enter to flashmode during bootloop. Just make sure to press volume down key & plugin the USB cable when the screen goes off.. type *#*#7378423#*#* in dial pad once it loaded you will have bootloader unlocked:Yes

I had the exact same problem.
I had unlocked my bootloader via the official Sony way.
Installed CM10.1.
Went back to stock Sony ROM (after relocking bootloader and flashing a tft via flashtool).
Tried the official way to unlock my bootloader, and all the time had a boot loop.
Tried to unlock my bootloader via flashtool and didnt have a problem.
Back to CM10.1 for me now!

If your phone reboots mid xperia that mean there is a system error.
With doom v6 kernel that is 4.1.1 based so that might be why you are getting bootloop if you are trying to flash kernel on a up to date 4.1.2 system
Sent from my C6603 using xda premium

Xperia Z1 is dead after relocking

Hello
I have Xperia z1 4.3 unlocked bootloader stock kernel rooted with cwm recovery, I wanted to relock it again to be able to get ota updates,so I used xperia flashtool by pressing the BLU button then relock button in flashmode.. after that the flashtool said that relock finished.. but now my phone is totally dead just vibrate without anything on screen, not even the sony logo and when I connect the charger a red led notification light keep blinking.. pls urgent help

Hani88 said:
Hello
I have Xperia z1 4.3 unlocked bootloader stock kernel rooted with cwm recovery, I wanted to relock it again to be able to get ota updates,so I used xperia flashtool by pressing the BLU button then relock button in flashmode.. after that the flashtool said that relock finished.. but now my phone is totally dead just vibrate without anything on screen, not even the sony logo and when I connect the charger a red led notification light keep blinking.. pls urgent help
Click to expand...
Click to collapse
Did you put your TA backup back onto the phone before relocking?

Linux4ever85 said:
Did you put your TA backup back onto the phone before relocking?
Click to expand...
Click to collapse
No I don't have TA backup .. I unlocked my bootloader without making TA backup

PC companion solution maybe !!
Now I'm trying to repair my phone by Sony PC companion, it's downloading the software update now.. hope that this is a good solution.. I can stop if not because it needs 2 hours and more to complete, because of my slow connection...

It should work fine after you use PC Companion.
It wont boot as your using a non Sony kernel (has recovery). If you flashed a stock, non modified kernel before you locked your boot loader it would be fine.
If for some reason PC Companion cant fix it, just unlock the bootloader again and flash a stock kernel thats not been modified and then relock your bootloader and it should work fine.

Seansmit17 said:
It should work fine after you use PC Companion.
It wont boot as your using a non Sony kernel (has recovery). If you flashed a stock, non modified kernel before you locked your boot loader it would be fine.
If for some reason PC Companion cant fix it, just unlock the bootloader again and flash a stock kernel thats not been modified and then relock your bootloader and it should work fine.
Click to expand...
Click to collapse
thnx man I did that.. after updating the phone totally dead !! not even vibrate or led blinking while charging !! .. but after 5 mins I tried to run it again and it works perfectly
thnx for your time all

xperia z c6603 IMEI corrupt and restarts after flashing a c6602 firmware

I have a sony xperia z c6603 , it was never unlocked from the start but it worked very fine on its original firmware, android 4.1.2. But then someone flashed a c6602 android 4.1 on it and now the IMEI is corrupted and it restarts every 9.3minutes.
It says bootloader unlock allowed: Yes which I guess means the bootloader is locked and can be unlocked, but since IMEI is corrupt, i cant request for unlock code from sony or use fastboot.
My only other option is the famous flashtool. I have three issues with flashtool.
1. I already downloaded the correct firmware and preparing to flash, so I click on the flash icon and start flash (Using Androxyde flash tool). It goes through the normal process and then an empty device selector screen comes up, with no option but to cancel. and when i cancel, it says "loader not found for this device"
2. Okay, after step 1, i am thinking "maybe i have to unlock the bootloader first" so i click on the BLU button and connect the device in flash mode, it starts and the empty device selector screen comes up again, once i cancel, it says "your device can not be officially unlocked"
3. So i did a little bit of digging around on here more and found that i have to update xflasher.jar to beta6, and so i did and flash tool started as "androxyde and bin4ry flash tool" .Only problem is when i click on the flash icon and choose flash mode, nothing comes up, i cant get into flash mode. but I can get into every other thing like fastboot mode and BLU
Please if you think you have an idea on how to solve this problem, please reply. I cant afford a new phone and I would also like to know if my phone can be repaired too, I also dont have a lot of time to waste trying to repair it.

try to reinstall flashtool after deleting it first .. install fastboot and flashmode drivers and drivers for ur device from drivers folder in flashtool folder.. disable any antivirus and any app that could interfere and unplug any usb device ... try to flash with flashmode
---------- Post added at 12:39 AM ---------- Previous post was at 12:35 AM ----------
mordr3d said:
I have a sony xperia z c6603 , it was never unlocked from the start but it worked very fine on its original firmware, android 4.1.2. But then someone flashed a c6602 android 4.1 on it and now the IMEI is corrupted and it restarts every 9.3minutes.
It says bootloader unlock allowed: Yes which I guess means the bootloader is locked and can be unlocked, but since IMEI is corrupt, i cant request for unlock code from sony or use fastboot.
My only other option is the famous flashtool. I have three issues with flashtool.
1. I already downloaded the correct firmware and preparing to flash, so I click on the flash icon and start flash (Using Androxyde flash tool). It goes through the normal process and then an empty device selector screen comes up, with no option but to cancel. and when i cancel, it says "loader not found for this device"
2. Okay, after step 1, i am thinking "maybe i have to unlock the bootloader first" so i click on the BLU button and connect the device in flash mode, it starts and the empty device selector screen comes up again, once i cancel, it says "your device can not be officially unlocked"
3. So i did a little bit of digging around on here more and found that i have to update xflasher.jar to beta6, and so i did and flash tool started as "androxyde and bin4ry flash tool" .Only problem is when i click on the flash icon and choose flash mode, nothing comes up, i cant get into flash mode. but I can get into every other thing like fastboot mode and BLU
Please if you think you have an idea on how to solve this problem, please reply. I cant afford a new phone and I would also like to know if my phone can be repaired too, I also dont have a lot of time to waste trying to repair it.
Click to expand...
Click to collapse
try to install a newer version of flashtool ...