Using your volume keys, navigate to the Android 5.1.1 ROM zip file that you copied to your SD card and select it using the Power button. Step 10 – Now select “choose zip from sdcard”. Step 9 – Then go back to the main recovery screen and select “install zip from SD card”. From CWM recovery, go to ‘advanced’ and then select “wipe dalvik cache”. You will not get into boot loops or any other errors. Step 8 – Now this is optional, but it is recommended to perform a wipe of your dalvik cache as well. Step 7 – Then, perform a cache wipe by selecting “wipe cache partition” as you can see in the image below. Use the Power button to select everything while in the Recovery Mode.
Step 6 – Once you are in ClockworkMod Recovery, select perform a full data wipe by selecting “wipe data/factory reset” as shown below. NOTE: Screenshots of the ClockworkMod Recovery may change as new versions are released.
Alternatively, read this: How to Enter Recovery Mode on Any Android Tablet. Switch ON the tablet while pressing and holding Volume Down + Power buttons together. Step 5 – Now to get in the Recovery Mode. Step 4 – Then turn OFF your tablet and disconnect from the USB cable. Make sure the file is in the SD card root (not in any folder). Step 3 – Now copy/paste the downloaded Android 5.1.1 ROM zip file to your SD card. Step 2 – Connect and mount your Galaxy Tab 2 7.0 USB memory on your computer using the USB cable. Step 1 – Download AOSP Android 5.1.1 ROM for Galaxy Tab 2 7.0 to your computer.
So, before proceeding Install KIES from Samsung to install all the drivers needed for Galaxy Tab 2. This is must as without the drivers your PC/Laptop will not recognise your device and you can Brick your device. THis is another step before proceeding for the Installation. Prerequisites before flashing Android Lollipop on Galaxy Tab 2: Samsung Galaxy Tab 2 7.0 USB Drivers
The only way to receive the update is Root, Flash and use.
So, there’s no chance of getting official Android 5.0 Lollipop update from Samsung side. Officially, we all know we’ve got Android kitkat rarely in some regions. They also look for Android 5.0 or 5.1 Lollipop for it. We know that this tablet is quite old but still lot many users use it upto some extent. Here we are going to let you know on how to install Android 5.x Lollipop on your Galaxy Tab 2 P3100/3110 tablet.