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Update Galaxy Tab 2 10.1 P5100 to Android 5.0.2 Lollipop via CM12 Custom ROM

Android 5.0.2 Lollipop is now available to install on Galaxy Tab 2 10.1 P5100 via CM12 custom ROM. This CyanogenMod 12 custom firmware is an unofficial release that is based on Android 5.0.2 Lollipop and comes with various CM12 features and customization tools that are very close to AOSP ROM. But as this firmware has been developed by third-party developers, not officially released by Samsung and is in its beta stages so some bugs or not working features are expected.

Flash Android 5.0.2 Lollipop on Galaxy Tab 2 10.1 P5100 with CM12 Custom ROM

If you want to get this CyanogenMod 12 custom ROM based on Android 5.0.2 Lollipop on your Galaxy Tab 2 10.1 P5100, then we have a step-by-step guide on how to update Galaxy Tab 2 10.1 P5100 to this latest mobile OS with CM12 ROM. You’ll need a custom recovery like CWM to install the ROM and Gapps zip files on the Galaxy Tablet.

Installing Android 5.0.2 Lollipop on Galaxy Tab 2 10.1 P5100 via CM12 Custom ROM


This tutorial contains the download link for Android 5.0.2 Lollipop based CyanogenMod 12 custom firmware can be used with Galaxy Tab 2 10.1 P5100 only. Do not try to install this firmware on any other or incorrect variant, as a result, your device might be damaged. Make sure to check the model number of your device before proceeding.


AndroidBlog will not responsible for any damage or mishap that occurred to your Galaxy Tab 2 10.1 P5100 during or after the installation of the Android 5.0.2 Lollipop CM12 Unofficial Custom ROM. Proceed at your risk.


  • Make a proper backup of all your important data and settings on your Galaxy Tab 2 10.1 using a recommended custom recovery.
  • Download and install correct USB drivers for Galaxy Tab 2 10.1 P5100 on the PC.
  • Enable USB Debugging Mode on your Galaxy Tab 2 by navigating to Settings > Developer Options. Here you can check the USB Debugging option.
  • Verify the battery level of your Galaxy Tab 2 10.1, and it should be charged at least about 80% before going ahead to the installation guide.

Required Files:

Steps to Install CyanogenMod 12 Unofficial Android 5.0.2 Lollipop Custom ROM on Galaxy Tab 2 10.1 P5100:

Step No 1: – First of all, download the CM12 Android 5.0.2 Lollipop custom ROM and Google Apps .zip files from the above-given links on the desktop of your PC for Galaxy Tab 2 10.1

Step No 2: – Connect your tablet to the PC using its USB data cable and mount its USB memory storage.

Step No 3: – Copy Android 5.0.2 CM12 Lollipop custom ROM .zip file which you’ve already downloaded from the above link to the root folder of your SD card on the phone.

Step No 4: – Now, disconnect the Galaxy Tab 2 from the PC and power it OFF to boot into Recovery Mode.

Step No 5: – Power ON the device while pressing and holding Volume Down + Power buttons at the same time to enter into Recovery Mode.

Step No 6: – While your device is now in CWM Recovery, perform a wipe data/factory reset, wipe cache partition and wipe Dalvik cache also by navigating to Advanced > Wipe Dalvik cache.

Note: – Wipe Dalvik cache will help you to prevent boot loops and other errors during ROM installation.

Step No 7: – Go back to the main Recovery Menu and choose to install zip from SD card → choose zip from sd card.

Step No 8: – Navigate to the Android 5.0.2 CM12 Lollipop ROM .zip file which you’ve already transferred to the SD card of your device previously. Select the ROM .zip file using the Power button and confirm the installation to begin.

Step No 9:- Navigate to +++++Go Back+++++ once the installation is completed. From Recovery Menu, reboot your device by selecting reboot system now.

Your Galaxy Tab 2 10.1 P5100 will be reset and may take about five minutes to boot.

That’s All! You’ve successfully updated Galaxy Tab 2 10.1 P5100 to Android 5.0.2 Lollipop via CM12 custom ROM.

Let us know in the comments section below if you have any query or problem regarding the above tutorial to update Galaxy Tab 2 10.1 to CM12 based on 5.0.2 Lollipop.

Aamir Jamal

An Android Geek and audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff. He has written 1007 guides and other posts.

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  1. Hi, when the device tries to load from the SD card it gives an error in the verification of the .ZIP file (the message is “failed to verify whole-file signature”). I checked the MD5 code when I downloaded it and it matches. Any idea of what could be wrong?

    1. Try update your clockwork to latest version ,after run in recovery mod from external SD card the custom ROM !!!

  2. The flashing was okay, but the rom is quite buggy. I mean, upon the first 5 mins of launching it it alrd hanged. How should I go about this? A popup kept appearing, saying “Email has stopped working”, and even if I dismiss it it keeps coming back. And then the whole thing just freezes.

  3. I managed to install tab 2 10.1, I use Odin3_v1.85 to install ClockworkMod-Recovery_6.0.1.0. Then install cm-12-20150206-Unofficial-P5100 and GAPPS-lp-20,141,113-signed

  4. Thanks a lot! After replacing the battery and installing this rom and gapps, my GT-P5100 resurrect from the dead! God Bless!

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