I have a Motorola Moto G 2014 XT1068 (Titan) with an unlocked bootloader. I am running the stock ROM, recovery, kernel, etc. for my device and my device is not rooted. After I download the latest TWRP image for my device from here, I run the command
fastboot boot twrp-22.214.171.124-titan.img.html whilst in fastboot mode. The output on the PC looks fine:
downloading boot.img... OKAY [0.358s] booting... OKAY [0.229s] finished. total time: 0.587s. The device then displays the Motorola boot logo briefly before a blank screen appeared. The device then repeatedly flashes up the logo (for even less time than it did immediately after the command) before displaying a blank screen for around 5 seconds. This goes on until I hold down the power button to boot back into Android, which works fine. I have tried these steps twice now and both times they have failed. How can I successfully boot into TWRP recovery? Please note that I do not want to flash the recovery, but boot it. I am able to run the same command for the appropriate TWRP image on my Nexus 7 and it works fine.