Ddeveloped by GLB in C-reader developing team(a ebook reader app made in china）
EDIT: If you updated to 7712 with 7661 unlocked, you can enter diagnosis->gprs settings then c...
Developped by Ornithopter, using WindowsPhone.Tools(by Oren Nachman) and Toggle Switch Control Library(by Eric Jensen)
You can get the latest version in these sites or from attachments.
In bootloader->recovery, conncect your phone to pc, use this command line "fastboot erase cache" under a folder which contains fastboot.exe and related stuff. This will fix the problem.
Sent from my HTC One using xda app-developers app
There are lots of deploying apps
Tom installer/XAPDeployX/WP7-Deploy etc.