I have rooted my phone all was going great went to download muiu rom and phone went to samsung screen then to black screen then samsung then black repeatedly. No programs will recognize my phone on computer, but computer recognizes it when i plug it in and i run the adb shell it will recognize it but says /sbin not found, cant reboot or anything. It will not reset and go to recovery. The buttons at bottom of phone wont even light up when on. I have a samsung infuse 4g sgh-1997

Hi Michele. Thank you for choosing my Android service on Fixya. Im sorry for the late response.
If you're stuck when flashing then do the following:
1) Power down/turn off the phone.
2) Unplug it from the computer
3) take out the battery.
4)Put the battery back in, but dont power on yet.
5)Put your fingers firmly on both VOLUME buttons and the POWER button and let the screen flash the SAMSUNG logo once, keep holding and when it shows the samsung logo the second time let go of all the buttons and leave the phone alone.
6) You should be in Red CWM Recovery and.............you've done it.

You can now restore or fix your phone.
If it didnt work then your timing is off. You can try again
I hope that this works for you. It should.