In case you installed Clockworkmod Recovery onto your Android device, you might encounter a serious bug that results in booting into Recovery each time. The only way to get into your system is a “cold-boot” (keep pressing power+VolDown, then select Android).
A complicated and long way to fix this is explained @ http://goo.gl/RI0sH
But if your device is already rooted, this is much much easier.
Open a terminal window, e.g. with Android Terminal Emulator from
Now, enter “su” to get root access. Superuser might ask you for authorization.
echo boot | dd of=/dev/block/mmcblk0p3 bs=1 seek=0
(please triple-check for mistyping!!!)
Reboot. Your device should now work normal again.
Hope it worked so easily for you as it did for me on my Transformer TF101G.
- As you can read in the comments to this blog post, using this method works great for some devices, while it seems to have resulted in a soft-brick for other devices (e.g. SGS+) I strongly recommend to first research the web for alternative ways to fix the bootloop issue which are ESPECIALLY MADE FOR YOUR DEVICE. I also recommend to collect links to unbrick tutorials (see xda forums, Google and Youtube), so you immediately have some tools ready to unbrick your device.
- The “cold-boot” way to get into your system (as described in this blog post) is only available for certain devices, like the ASUS Transformer 101(g). Some custom recovery systems also have a terminal-feature that you could try to run the command on. If your device does not offer a cold-boot or any way to get into terminal-mode, your options are
a) try all wipe/format/reset options within Clockworkmod Recovery until you’re get into your system again (note that of course all your data will be lost)
b) download either the original firmware for your device or a custom rom and flash it to your device. You can do this with Clockworkmod Recovery or from your computer via USB, using adb and 3rd party tools. This will also overwrite your bootloader and fix the bootloop issue. For links and downloads, please check all subforums for your device in the xda forums.