I'm trying to Install CyanogenMod on my Samsung Galaxy S III, while using this guide http://wiki.cyanogenmod.org/w/Install_CM_for_i9300 For that end I need to install a new recovery mode. Everything seem to work fine, until I'm trying Manually reboot the phone into recovery mode, the newly teamwin recovery( (Flashed with heimdall ), when I try that (holding vol up+powr+home in the download mode after flashing the new recovery mode) it gets me to "downloading do not turn off target" screen. if I reboot and try again the "vol up+powr+home", this time it gets me to the stock rom recovery. Maybe I am unable to install new recoverys? how can I know that?