Guest Mrcl1450 Posted August 21, 2013 Report Share Posted August 21, 2013 (edited) Note : Disadvantages of unlocking bootloader? ( Doesn't matter if you have backed up your TA) >> You may void your warranty. >> You may loose some proprietary vendor software such as Bravia Engine, Download Music info etc. due to removal of DRM security keys. >> OTA updater may refuse to update your device and pop up a 'Device's software modified' message. >> I and XDA members will not be held responsible for the damage you may do to your phone. >> This guide it's not mine!!! >> So lets get started : >> First of all download flashtool from : Search it / Google it >> Then, Install it. >> After that run your flashtool. >> Then, If you want to unlock your bootloader then proceed with following steps : >> Check unlocked bootloader : >> Go to dialer >> Type *#*#7378423#*#* >> Service info > Configuration >> Rooting status : >> "Bootloader unlock allowed" - You can unlock your bootloader >> "Bootloader unlock not allowed" - You cannot unlock your bootloader. >> Search for Unlock bootloader Sony [Official site] >> Then follow the instructions and receive unlock code. >> Then go to flashtool and click BLU button http://forum.xda-dev...pictureid=37214 Then, Power off your phone. >> After that connect you phone via usb simultaneously press volume down button >> No indicator will glow >> You have successfully connected your phone via Flashmode. >> Flashtool put your unlock code. http://forum.xda-dev...pictureid=37215 >>> You Bootloader is Unlocked >>> How to Re-Lock your bootloader : >> Follow the above steps >> Connect your phone in Flashmode >> Then press BLU button in Flashtool >> Then Press Relock [Hope you are in stock room and on stock kernel or else u will get bootloop.] Q. How to flash Stock Rom via Flash tool its easy just follow these steps : - Power off your phone [Keep it in power off mode [Till you setup the flash tool.] After setting up Press Vol Down Button simultaneously connect it via USB to PC it will get into flash mode [Drivers must be installed forehand or else computer may not recognize it ] - Then go to your flash tool folder[Where you installed the flash tool.] http://forum.xda-dev...=1&d=1372383545 - Copy the .ftf file to [Flash tool folder] firmware folder for example : [C:\Flashtool\firmwares ] - Then, start your flash tool http://forum.xda-dev...=1&d=1372383545 - Press the flash button, Select flash mode http://forum.xda-dev...=1&d=1372383545 - Select the firmware & Leave all the settings as it is i.e. wipe data and cache selected, Select No final verification [After searching google i got this answer : It will check whether any error occurred during flashing, i had disabled it when flashing stock rom on my phone. so idont know what happens when we keep it unchecked.] - The flash tool will setup files and start flashing, Don't touch your phone or press any button. - You have successfully recovered your phone back to stock state. • Thanks & Credits for XDA members Androxyde & Navneet Suresh for this guide. Edited August 21, 2013 by Mrcl1450 Link to comment Share on other sites More sharing options...
Guest Mohit2398 Posted March 16, 2017 Report Share Posted March 16, 2017 Hello I have Sony Xperia Z lollipop with unlocked bootloader after unlock it I lost the DRM keys and I also have not backup of them. my phone's screen mirroring any mirrorlink functions are not working after that. I want to get them please give me the solution. Link to comment Share on other sites More sharing options...
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