I'm working on getting my wife's phone downgraded to fix some other issues.
I'm sorry if the following has been posted before....
Originally Posted by scotty85
exit to get out of your adb shell,and back to the "mini-adb_inc" prompt
adb reboot bootloader this will boot your phone to "fastboot" select "bootloader" with the power button.
hopefully what you will see now,is a blue status bar as your phone finds the PB31IMG,unpacks it,checks it,then asks if youd like to update. select yes to update with the volume up rocker. if youve never installed a full ruu in hboot,it will take a few minutes,so dont panic. place the phone gently down somewhere where it wont fall and spit out the battery. let it do its thing. push power to reboot when prompted.
when I type adb reboot bootloader (the last quoted command above) I get an access denied error. I tried it as su (without exiting the adb shell) but then the phone didn't install the zip file. Any ideas on what I'm not doing correctly. I think I followed all of the steps correctly.
Any help would be greatly appreciated.