[Acer Iconia A700 and A510] ZeroNull:
WARNING. THIS is ONLY for tablets running

ICS

. If you are running Jelly Bean, You May Brick your device!!

Again, this is for

ICS ONLY!

Running this root on a Jelly Bean OS can cause your tablet to stop functioning as it is designed for ICS only. If you have a Jelly Bean Operating system, then please use Vorbeth's or Moscow Desire's Easy Root Package located in the Development Forum. If you do not know which OS you currently have, then you should ask questions before rooting.

Method 1. Universal for A700 and A701 Tablet

1. Enable adb mode: Settings -> Developer options -> USB debugging - check it point.

2. Unlock your bootloader for fastboot, follow here. Then reboot a tablet.

3. Download arhive. Unpack it to any place.

4. Open the directory with the unpacked archive. Execute file:

for windows with the rights of administrator:

runit.bat

Your firmware is now rooted.

5. At first it is necessary to start the Superuser program, at least 1 time after receiving root. And only then programs that require root access.

ATTENTION!

Don't install Busybox! It is already installed and established! If you reinstall it, some programs will become unable to access root permissions!

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Method 2. With the patched kernel from the A700 tablet

For ICS A700 firmware only!

1. Enable adb mode: Settings -> Developer options -> USB debugging - check it point.

2. Unlock your bootloader for fastboot, follow here. Then reboot a tablet.

3. Download this arhive. Unpack it to any place.

4. Open the directory with the unpacked archive. Execute file:

for windows with the rights of administrator:

flash-ICS-patchedBoot.bat

Your boot.img is now patched and firmware is now rooted.

5. At first it is necessary to start the Superuser program, at least 1 time after receiving root. And only then programs that require root access.

6. Now you will have to install the following programs:

BusyBox

Titanium Backup

7. Run BusyBox and go through the install steps. During this SU should ask permission to give BB root access, if it does, it worked!

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Method 3. From CWM recovery for A700 and A701 Tablet - Not available due to problems in the work of CWM recovery!

1. At the tablet must be installed CWM recovery.

2. Download arhive ICS_Rooting_recovery.zip. Put it on SD-card. Insert the SD-card in the tablet.

3. Run CWM recovery on the tablet and flash ICS_Rooting_recovery.zip.

Your firmware is now rooted.

4. Now you will have to install the following programs:

SuperUser

Titanium Backup

At first it is necessary to start the Superuser program, at least 1 time after receiving root. And only then programs that require root access.

ATTENTION!

Don't install Busybox! It is already installed and established! If you reinstall it, some programs will become unable to access root permissions!

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Method 1, in contrast to method 2, does not affect the core of the system. This makes it possible to receive future firmware update. But only if you do not forget to make backups before making changes to the system and restore it before upgrading. ;)

PS: I tried to make a method 1 as safe as possible. But I have not had a chance to test it completely. So if it does not work, be sure to let me know in this thread and I modified it.