cant access fastboot

[Jegone]

Please help. I'm trying to flash twrp on xperia z C6603 so i can install custom rom existens. I installed flashtool and all drivers. Fastboot and for the phone. Installed android studio. Downloaded img of recovery and from folder I start elevated cmd and when I write fastboot devices it says 'fastboot' is not recognized as an internal or external command,
operable program or batch file.
What to do? Some tutorial. Where I'm making mistake?
Windows 10 x64
Android 5.1.1 build 10.7.A.0.228

 

[St.Jimmy90]

Please help. I'm trying to flash twrp on xperia z C6603 so i can install custom rom existens. I installed flashtool and all drivers. Fastboot and for the phone. Installed android studio. Downloaded img of recovery and from folder I start elevated cmd and when I write fastboot devices it says 'fastboot' is not recognized as an internal or external command,
operable program or batch file.
What to do? Some tutorial. Where I'm making mistake?
Windows 10 x64
Android 5.1.1 build 10.7.A.0.228

First you should unlock your bootloader, otherwise your phone will be bricked. Next, are you sure you installed the drivers correctly? On Windows 8 and above you have to disable driver signature, otherwise the drivers simply won't be installed.
When all that done you could try to enter fastbood mode via flashtool. Make sure you're using an old version, as the newer don't really support the Z.

 

[Anujkhaitan97]

Please help. I'm trying to flash twrp on xperia z C6603 so i can install custom rom existens. I installed flashtool and all drivers. Fastboot and for the phone. Installed android studio. Downloaded img of recovery and from folder I start elevated cmd and when I write fastboot devices it says 'fastboot' is not recognized as an internal or external command,
operable program or batch file.
What to do? Some tutorial. Where I'm making mistake?
Windows 10 x64
Android 5.1.1 build 10.7.A.0.228

First :- You should unlocked the bootloader by sony's offical site for your by cmd .
Second :- Use window 7 for better and fast response to your phone ...
Third :- to come in fastboot mode you should switch off your phone then connect use and keep pressing volume up button blue light will display.
Then type this cmd in your all driver :-
1. adb devices – Checks whether your device is connected or not. If its connected, some random numbers will appear in command window.
2. Use this command to flash a stock kernel or any custom kernel:
fastboot flash boot _____.img
3. Use this command to flash custom recovery like CWM or TWRP in your phone:
fastboot flash recovery _____.img
Last :- wipe all data when youy intall twrp/cwm (recommended TWRP Latest Version) flash your selected ROM with GAPP...
Happily enjoy your comtomized ROM..