Cannot unlock bootloader - Samsung Galaxy Note 9 Questions & Answers

Hi. I cannot unlock the bootloader of my xperia xz premium(G8141) I tried the official Sony method and also with the flashtool. When I put the phone in fastboot mode it only gives blue light and the phone doesn't communicate with the computer.

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[Q] Xperia zl (c6502) bad bootloader

Hello community,
I write because I had a problem when installing CWM Recovery for my xperia zl (C6502), after doing the procedure, my devide did not boot again, I suspect that damage the bootloader that when connected to the PC does not recognize it, I can not even enter fastboot mode, just a light red flashes and does nothing more.
That option I have to get my device again?
Thank you for your contributions
Did you root your device first?

[Q] Xperia Z showing only Sony Icon and Red LED in a loop

Hello,
I have a Sony Xperia Z and I tried to flash cyanogenmod 11 on it. I checked before if the bootloader is unlocked but the option in service menu said "No" which means that the bootloader can not be unlocked.
I still moved forward with flashing the CM11 on it and at the last step of flashing CM11 it gave me an error and failed to flash CM11 on it. In the recovery mode, I clicked on "reboot now" option and since then the phone is not booting and is going in to a loop of showing Sony icon and a red led light.
I tried brining the phone in fastboot mode by holding power button and volume down and attaching the USB and it does show me a green led for a moment but the screen is complete black and nothing shows up.
adb devices command does not show anything (I am using Mac OSX 10.9.5)
I installed flashtool. It does detect the device but says that the "Device is locked" and does not show any option to flash the stock ROM.
Sony's PC Companion does not even detect the device.
Please help me in finding a way to being it back to its original form.
Regards,
Ashish
You absolutely need an unlocked bootloader to flash Cyanogenmod to your device. You have soft bricked your phone by flashing a custom kernel to it when the bootloader is locked.
You should be able to fix this by flashing a stock rom with Flashtool (the unofficial Flashtool, not Sony's Emma). Either download an FTF from the general section or package and flash one by following this guide - How to package and flash stock roms in FTF format. Obviously, do not install the Windows driver as in part 1 of the guide if you're using a Mac.
Sent from my C6603

[Q] Sony xperia bootlooped

I unfortinately formated system in clockworkmod touch recovery. Afterwards phone gets stuck at sony logo when i power on the phone. Am able to boot into fastboot and flashmode using key combinations but cant enter into the clockworkmod with key combinations as i used to do before the system format. However, i unlocked my bootloader and rooted the device before i had this problem. As a result, am not able to get sony pc companion to repair my phone. I tried flashtool but then upon flashing, it asks me to enable usb debug mode and am not able to enable debud mode since the phone doesnt boot past the sony logo.
I will appreaciate it greatly if anyobe can help me get my cute phone out of this situation
On android 4.0.4
Sorry if i posted in a wrong forum.I'm new here
Deshycrane said:
I unfortinately formated system in clockworkmod touch recovery. Afterwards phone gets stuck at sony logo when i power on the phone. Am able to boot into fastboot and flashmode using key combinations but cant enter into the clockworkmod with key combinations as i used to do before the system format. However, i unlocked my bootloader and rooted the device before i had this problem. As a result, am not able to get sony pc companion to repair my phone. I tried flashtool but then upon flashing, it asks me to enable usb debug mode and am not able to enable debud mode since the phone doesnt boot past the sony logo.
I will appreaciate it greatly if anyobe can help me get my cute phone out of this situation
On android 4.0.4
Sorry if i posted in a wrong forum.I'm new here
Click to expand...
Click to collapse
You can try with Emma, it works only with unlocked bl. You can find it somewhere on Sony web page (google it).
Help
neoxx3m said:
You can try with Emma, it works only with unlocked bl. You can find it somewhere on Sony web page (google it).
Click to expand...
Click to collapse
Emma does not support xperia sola at the moment. Any suggestion please
Deshycrane said:
Emma does not support xperia sola at the moment. Any suggestion please
Click to expand...
Click to collapse
If you can get in fastboot mode you can allways relock your BL and repair it via PC Companion.

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 ...

[HELP] Xperia Z Can't boot, stuck in locked bootloader without IMEI

Hey, I have a Xperia Z C6602 running 5.1.1 and firmware version: 10.7.A.0.222
I was trying to root the device but got in trouble.
I used this guide to root the device but soon after Super-SUme got installed & updated, the device was supposed to reboot but it just shows "Power off ; restart ; take screenshot " options and nothing else.
I went into fastboot mode:
Code:
fastboot devices
worked but couldn't flash recovery.
I can't unlock the bootloader since I don't know the IMEI code. I don't have the phone box or receipt to check the IMEI.
Please help.
THANKS IN ADVANCE.
I install the emma. It show imei. Then i unlocked bootloader.
You should install flashtool from:
http://www.flashtool.net/index.php
It's a multipurpose tool for Sony Xperia Devices!
Be sure to install the right drivers "Devices -> Check Drivers" for the Xperia Z.
If you are running Windows 8 64-Bit or a higher version you need to disable Driver Signature Verification before installing the drivers!
Example guide: http://www.howtogeek.com/167723/how...8.1-so-that-you-can-install-unsigned-drivers/
If everything went well you can now connect your phone to the PC and the Flashtool program will be able to recognize it.
As far as I remember it, the boot loader unlock from flashtool will automatically save your "DRM-Keys" so you will be able to restore them later on to your phone, which also relocks the boot loader (but you might want to check on that before doing the boot loader unlock process as you won't be able to restore the DRM-Keys if you loose them once!).
Now you press the "BLU" button inside flashtool and it will guide you through the progress!
I hope that will help you! If not, feel free to ask!

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