via fastboot
Code:
Copy recovery-RA-nexus-v2.0.0.img to a location where fastboot can find it.Boot your phone into fastboot mode (power on while holding the trackball)Connect your phone via usb to your pc/mac/...fastboot devices (to make sure that fastboot "sees" your phone)
fastboot flash recovery recovery-RA-nexus-v2.0.0.img
via terminal app
Code:
Copy recovery-RA-nexus-v2.0.0.img to the root of your sdcardstart the terminal appsu(press enter)
flash_image recovery /sdcard/recovery-RA-nexus-v2.0.0.img (press enter)
reboot recovery (press enter)
