Update Galaxy S2 (i9100) To CrDroid Android 7.1.2 Nougat Custom ROM

Good news that now you can upgrade your pretty old device Galaxy S2 (i9100) to the latest Android 7.1.2 Nougat. This is only possible that you will be making the use of a custom ROM in order to install Android 7.1.2 Nougat on your Galaxy S2 (i9100). Because we don’t expect that Samsung will release any Nougat official update for your device. In this detailed guide, we provide you the latest build of CrDroid custom ROM which is based on Android 7.1.2 Nougat. All credit goes to CrDroid team to build this amazing custom firmware and giving you the experience of Android 7.1.2 Nougat on your old device. This latest custom ROM is stable, fast and smoothly runs on your device. Also, you can use it as a daily driver. Samsung has not officially announced but this is just a custom ROM, so you may face some minor bugs. Your device must be rooted and installed with the latest version of a custom recovery like TWRP or ClockworkMod (CWM) in order to flash this crDroid ROM on your Galaxy S2 (i9100).

By following this step by step guide, you can update your Galaxy S2 (i9100) to CrDroid Android 7.1.2 Nougat custom ROM. Many users have installed this ROM and reported that the ROM is running very smooth without any major bugs. This latest CrDroid ROM comes with many new features, improvements, changes and enhanced user expedience. Before proceeding, don’t forget to take a full backup of all your valuable data. If you are interested in installing this CrDroid Android 7.1.2 Nougat custom ROM on your Galaxy S2 (i9100)  then go ahead and follow the given steps.

Galaxy S2 I9100 updated on Android 7.1.2 Nougat ROM 11


The crDroid Android 7.1.2 custom ROM and instructions given in this guide can be used only for the Galaxy S2 I9100. Check the model number of your Galaxy S2 from Settings > About Phone.


AndroidBlog will not be held responsible for any kind of damage occurred to your Galaxy S2 during or after the installation of crDroid Android 7.1.2 ROM. Proceed at your own risk.


  • Create a proper backup of all your existing data and settings on the phone before proceeding to the installation guide using a recommended custom recovery.
  • Enable USB Debugging Mode on the Galaxy S2 by navigating to Settings > Developer Options.
  • Verify that you’ve correctly installed the Galaxy S2 USB Drivers on the PC.
  • The Galaxy S2 should be rooted with the latest version of a custom recovery like CWM or TWRP installed.
  • The bootloader of your S2 must be unlocked.
  • Make sure that the battery level of the Galaxy S2 is at least above 80% before going ahead.

Required Files:

Steps to Install crDroid Android 7.1.2 Nougat on Galaxy S2 I9100:

Step No 1: – First, download crDroid Android 7.1.2 custom ROM  for Galaxy S2 I9100 on the desktop of the PC.

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

Step No 3: – Transfer crDroid Android 7.1.2 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: – Unplug the Galaxy S2 I9100 from the PC and power it OFF to boot into Recovery Mode.

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

Step No 6: – While your device is now in CWM Recovery, perform wipe data/factory resetwipe 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 while 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 crDroid Android 7.1.2 custom 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.

9: – Navigate to +++++Go Back+++++ once the installation is completed. From Recovery Menu, reboot your device by selecting reboot system now.

Your Galaxy S2 I9100 will be rebooted and may take about 4 to 5 minutes to boot for the first time after installation.

Done! You’ve successfully updated Galaxy S2 I9100 to the latest crDroid Android 7.1.2 ROM

Bhatti Junaid

He continuously writes tech articles and development code. Also, appreciates excellent food, exceptional coffee and great company. He has written 266 guides and other posts.

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