i reformatted the instructions from
here:
* make sure you have at least 50% battery power left
1) download update file from
here
2) copy the update.zip file you just downloaded to the root of your sd card
3) turn off your phone, then power onto fastboot mode by holding down the volume down button and then pressing power
4) once fastboot loads, (takes a few moments after menu initially appears) highlight "recovery mode" by pressing volume down and select it by pressing the power button
5) once in recovery basic mode, where you see the triangle with red exclamation, hold volume up and press power button to get menu to appear
6) press volume down to highlight "apply sdcard:update.zip" and press power to select
7) wait for the update to finish installing (about 3 minutes) and the menu to reappear. With "reboot system now" highlighted, press power button to select
8) your phone will reboot a few times and take longer than usual to boot (don't panic when it appears to be stuck at the "my" logo screen) before finishing at the lock screen about 4 minutes later.