I'm one happy 6700'er now that I've got my RADIO back on my phone. It's easy. REAL EASY. Don't spend time flashing/reflashing or tossing your phone around like monkeys throwing poo... All ya gotta do is this:
Go here: (requires registration)
http://wiki.xda-developers.com/index...0Boot%20Screen
Or do this (I slightly modified for 6700)-
1. Take out the SD card
2. Opened ActiveSync and go to file, connection setting and Un-check "Allow USB Connections". Then press Ok and close ActiveSync
3. Put in bootloader mode (Power + Record + reset) which brings up the "un-backlit" screen with "Serial" at the top and v0.XX at the bottom
4. Plug in USB cable DIRECTLY from PC to Phone (MAKE SURE NOT TO USE A USB HUB). You MIGHT then see a warning window complaining that an "Unsigned" device driver is being attempted to be installed. You will be prompted to either "STOP INSTALLATION" or "CONTINUE ANYWAY" - this warning can be safely ignored and so just click on "CONTINUE ANYWAY".
5. Open mtty utility / software (
http://rapidshare.com/files/27028426...2_538.rar.html)
6. Select USB from the "Port" drop-down on the upper left corner of the dialog box and hit OK
7. Then another screen will come up. Hit enter and that will show "USB>"
8. Type exactly "set 14 0" and hit enter. You will see some jibberish on the mtty utility which will again be suffixed by "USB>". Your 6700 will not seem to have done anything and should still indicate "USB" at the top, and "v2.01" (or equivalent) at the bottom. You can now close the mtty utility.
9. On the Desktop PC unplug the USB cable and re-plug it into the exact same USB port again. From this point onwards, you must use this exact same USB port to flash the ROMs of your phone because failure to do so will most proably result in "Connection Errors" at the beginning of the flashing process when the RUU attempts to establish communication with your Universal. After re-pluging into the USB port, you can then run the ROM update APA_SPCS_20600_303_12700_WWE_Ship.exe (or latest version - CARRIER SPECIFIC)
10. It will go through the upgrade process with the 3 steps and "completed successfully" on the PC
11. wait until 100% complete
12. Then do a Hard Reset with the two "-" buttons and the soft reset button.
13. Press "Y" and then it starts to boot