To all of those who are having problems manually updating or automatically updating. Here was my problem and solution in hopes it helps someone else out there.
I was getting the dreaded
"E:signature verification failed
Installation aborted."
After checking my current build I found I was on a very old test build, not even ERD79. Since every thing was written assuming ERD79 I figured that was my first step, if you already have this then you can move on to the ERE27 portion below.
Flashing ERD79:
There are instructions for this everywhere, but basically I UNLOCKED (yes, bye bye warranty) and then flashed the ERD79 Image which I
found here, at the top. I used the IMAGE not the ZIP. If you don't know how to do this just read around a bit.
After I flashed this on, I was prompted for the OTA update, but it failed with the signature errors still... Sooooo, I tried a custom recovery console...
I got
Amon_Ra's custom recovery from here.
After that was downloaded, I flashed it on to my phone, overwriting the vanilla recovery.
That was done by using fastboot and the following commands:
Code:
Copy recovery-RA-nexus-v1.5.3.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-v1.5.3.img
I rebooted and tested to make sure everything was solid, it was so I moved on to this.
I went back to the link above with the image files,
here. And I downloaded the file titled: "ERE27 - update zip format" it is the ere27 update.zip meant to be applied via a MODIFIED RECOVERY, which should help kill those signature errors we are getting.(It did for me at least)
Change the file name to update.zip, drop it on the root of your SD card and boot into the modified recovery console. Then select to apply update from sdcard.
This did it for me after the install was complete I was solid and running ERE27.
I know I wrote this missing many things but honestly I am a newb at this so my intentions are that it helps another newb out there figure it out.
Good luck.