Rooting Nexus 4 gives "No Command" screen

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Run script
2. Select 1 (Nexus 4)
3. Select A (Automatic)
4. Select 3 (Root device)
4. Developer mode was already enabled so enter Y
5. Device restarted to "No Command" screen

What is the expected output? What do you see instead?
Rooted device

What version of the product are you using? On what operating system?
2.0.2

Please provide any additional information below.

Original issue reported on code.google.com by j.romero.1214 on 30 Nov 2012 at 2:23

[GoogleCodeExporter]

Sorry, I jumped the gun. I was unaware that I had to unlock the bootloader 
first.
BUT still I am unable to root the device even after the unlock. Now I just get 
the android with a red triangle but no text and it stays there. Instruction 
state:  Go to 'install zip from sdcard' >> 'choose zip from sdcard' >> 'UNLT'
   and choose 'su.zip'.

... but I don't see anything like that. What am I missing?

Original comment by j.romero.1214 on 30 Nov 2012 at 2:42

[GoogleCodeExporter]

Hello! I also just got a nexus 7, I used it without problems for around 3 days, 
last evening i shutted down and today when i wanted to open it the little 
android guy was lying on the floor, looking like we had a problem and i coudn't 
start my tablet otherwise than in start mode...under the android guy it shows 
some little infos, under Fast boot mode, like product name, variant, version, 
serial and signing (not defined yet) and at the end writes Lock state - 
locked... cand someone help me with this problem, pls? Thanks a lot!

Original comment by anca.dr...@gmail.com on 27 Dec 2012 at 1:53

[GoogleCodeExporter]

sorry, I made a typing mistake...I cound't start my tablet otherwise than in 
SAFE MODE

Original comment by anca.dr...@gmail.com on 27 Dec 2012 at 1:54

[GoogleCodeExporter]

Had same problem.

Easy way to fix it:
- Select your device
- Use manual (fastboot) mode
- Flash ClockworkRecovery
- Reboot device using Clockwork recovery (confirm to disable recovery restore 
by ROM)
- Try to root again. 

Original comment by aaltrui...@googlemail.com on 14 Feb 2013 at 12:36

[GoogleCodeExporter]

Worked like a charm on Nexus 4 for the same problem, so thanks.

Original comment by gautier....@gmail.com on 13 Aug 2013 at 12:11