My Samsung Galaxy Tab 2 7.0 is turning on and off continuously. I connected it with the charger and I pressed the power button. This is stopping the endless reboot, but when I try again I'm faced with the same problem.
I had the same problem with continuous rebooting. The problem seems to be a sticky power switch, as others have suggested. I didn't want to take my tab apart to disconnect & reconnect the power switch, so I just thumped the back by the power switch to unstick it. That fixed it and it booted normally afterwards! No data wipe, no factory reset, no repair center, just a few quick thumps to the back under the power switch!! Good luck!
hopefully your tab is fixed by now, but if it isn't, there is an easy way to fix it. You just charge the tab to 100% while it is off, then reboot it. You will lose all of your wifi passwords for some reason however it is a small price to pay.
"Hi, open your device and after samsung boot screen:
disconnect the power switch flat cable (the one that had also the volume switch in it), probably it wont reboot automaticly anymore, worked at 2x p3110 for me.
"Step 1: Power down the device. Pulling the battery will work as well, especially if you are caught in a boot loop.
Step 2: Allow the device to completely shut down. Waiting until your screen is off, or just giving it a full minute or two should suffice.
Step 3a: For the Galaxy S2 and Tab 2, you will need to hold Volume Up and Power at the same time until you see the Samsung logo appear. Then release.
3b: For the Galaxy S3, you will need to hold the volume up, home, and power button at the same time until you see the Samsung logo, and then release.
Step 4: For all variants mentioned, you should now be looking at a menu list with a blue highlighted bar. Using the volume rockers will navigate through the menus, and generally power is your accept button. The S2 might have a little twist. Upon getting into recovery, you can push up, down, up to enable the back button. This also allows to use the power button as the accept button. See figure 1.
Important note: When navigating around in recovery and you select something, you may be redirected to a page with about a dozen answers. Almost all will be no with yes buried in the middle. This is to prevent accidental accepting of an option.
4b: To actually have you use this guide, you can clear your phone's cache. See figure 2. There are many cache clearing programs on Play, and while they may clear the cache as well as rebooting into recovery, this is merely an alternate method. Click power to accept.
Step 5: When completed, you can navigate back, or usually after completing any action in Recovery, Reboot Now will be highlighted at the root menu. See figure 3. This is your gate back to running Android through the User Interface. Click power to accept.
Congratulations! You have successfully entered, navigated, executed a command and rebooted all in Recovery. This is also a method to flash a ROM through a .zip file on an SD card, and a complete Factory Reset can be accomplished in this manner as well."
