Ok, first off...this is my work issued HTC Droid Eris. 100% bone stock facory everything, no root, no flashing, nothing (not even really sure what all that stuff is anyway lol) Yesterday got the phone off the charger, hit the power button to start up. Phone vibrated and the three skateboarding droids came up as usual and there the phone stayed. Pulled the battery, tried again and same thing...locking up on the three skating droids. Next I did power+vol dwn. It goes right to the fastboot, recovery, clear storage, simlock menu. I selected RECOVERY and hit power. Phone vibrates and the three skating droids pop back up for about 5-10 seconds and the I get a picture of a Droid Eris with a red triangle and exclamation mark over it. From this screen I hit power+vol up. This gets me the Android System Recovery menu with Reboot System Now, Apply sdcard:update.zip, Wipe Data / Factory Reset, Wipe cache partition. Down at the bottom, in yellow letters it says "E:Can't open /cache/recovery/command" So I select Wipe Data / Factory Reset and hit power. "confirm wipe of all user data?" Yes...does it's thing for a couple minutes. "Data wipe complete" and Android System Recovery menu comes back up. Select Reboot System Now and hit power. Now the phone reboots, white screen with three skating droids.....still locked up on that screen. After noticing the "Apply sdcard:update.zip" menu option I downloaded the July 2010 OTA from here. I put it in the root folder of my sd card and the selected "Apply sdcard:update.zip". It started the install from sd card and after just a couple seconds pops up and says "E:signature verification failed Installation aborted." So my phone is still locked up on the skating droids...Can anyone please offer any help? Thanks in advance!