Even I faced the same problem, this is how I fixed it..
These steps worked for me, hope they do for you too...:good:
Check If you have QUALCOMM boot loader in your phone. If you do have, then go into osbl mode and reinstall your rom or install any new rom using lumia 710 downloader...hi bro
thanks for the post
very good
everything went well until i came to reboot my phone
it does not start up now
what shall i do?
i done all the steps and they matched yours perectly. all the messages were the same.
the nss said to reboot the phone
i unplugged the usb and took battery out and rebooted it.
nothing, it doesnt start up
help
These steps worked for me, hope they do for you too...:good: