A. if you already have the Android SDK installed with both the
adb and
fastboot utilities, go ahead and skip to step
B.
If you don't have both
adb and
fastboot installed anywhere, it might be easiest to download and extract the
sdk-tools.zip file referenced in the "
Mini-SDK" section of this thread
ADB Guide to a folder on your PC of your choosing (take note of this folder/directory's name).
B. turn off (power down) your device
C. connect the USB cable between the phone and your PC if you haven't already
D. on your PC, start-up a terminal session (Windows Command Prompt for Windows; Terminal for Mac or Linux) and navigate to the directory/folder where the
adb and
fastboot utilities are located:
+ for Windows, you need to start-up a Windows Command Prompt (DOS window) and type the following (for example, assuming that your
adb /
fastboot files are in the
c:\sdk-tools folder):
Code:
[B][COLOR="purple"]cd c:\sdk-tools[/COLOR][/B]
+ for Mac/Linux, start-up a Terminal session and type the following (for example, assuming that your
adb /
fastboot files are in the
sdk-tools folder):
Code:
[B][COLOR="Purple"]cd sdk-tools[/COLOR][/B]
E. next, boot your phone into
fastboot mode (press
and hold both the
volume-UP and
volume-DOWN buttons and then press the
power button)
F. if you are using Windows, install the appropriate Samsung USB drivers
http://androidforums.com/galaxy-nexus-all-things-root/470831-big-how-thread-under-construction-check-back-soon.html#post3711706
G. let's verify that
fastboot can "see" your device
note: for simplicity's sake, I'm using the generic "
fastboot" command name here; your
fastboot utility might actually be named:
+ for
Windows:
fastboot.exe or
fastboot-windows.exe
+ for
Linux:
fastboot or
fastboot-linux
+ for
Mac:
fastboot for
fastboot-mac
- from your PC, enter the following to verify that the
fastboot utility can see your phone:
For MS/Windows:
Code:
[B][COLOR="Purple"]fastboot devices[/COLOR][/B] [COLOR="blue"] (list connected devices)[/COLOR]
For Mac/Linux:
Code:
[B][COLOR="Purple"]./fastboot devices[/COLOR][/B] [COLOR="blue"] (list connected devices)[/COLOR]
- you should see something similar to this:
Code:
sdk-tools> [B][COLOR="purple"]fastboot devices[/COLOR][/B]
[COLOR="Blue"]<device serial #> fastboot[/COLOR]
J. next, you'll re-lock the bootloader
For MS/Windows:
Code:
[B][COLOR="Purple"]fastboot oem lock[/COLOR][/B] [COLOR="blue"](re-lock the bootloader)[/COLOR]
For Mac/Linux:
Code:
[B][COLOR="Purple"]./fastboot oem lock[/COLOR][/B] [COLOR="blue"](lock the bootloader)[/COLOR]
J. That's it, your bootloader should now be re-locked and you are ready for your next step. You phone should still be in fastboot mode at this point.
If you simply wanted to re-lock the bootloader and now want to reboot your phone, you can issue a "fastboot reboot" (for Windows) or "./fastboot reboot" (for Mac/Linux) to reboot the device normally.
If you are not ready to reboot, but need to do other fastboot-related operations, then your phone is still in fastboot mode and ready for you.
).
