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Update Galaxy S2 I9100 to Android 4.1.2 NeatROM Custom Firmware

NeatROM is a new custom firmware for Galaxy S2 I9100. It’s based on the latest Android 4.1.2 Jelly Bean mobile OS offered by Google. This ROM includes a lot of mods to modify the device as per your wish and tweaks to run the OS as smooth as possible. It is More Optimized ROM than any other Custom ROM for this device. It works smooth and stable. You can update Galaxy S2 I9100 to Android 4.1.2 NeatROM Jelly Bean custom firmware using the tutorial below. This is not an official release by Samsung, but just a custom ROM which would require a custom recovery like CWM in order to flash the ROM zip file on your phone. Your Galaxy S2 I9100 should be rooted and have a custom recovery (ClockworkMod recovery / TWRP recovery) installed.

Galaxy S2 I9100

In this tutorial, we will tell you how to install NeatROM Android 4.1.2 Custom Firmware on Galaxy S2 I9100 with complete steps using CWM recovery. We also have several tips on how to backup your phone data and also some more tips that you have to keep in mind before proceeding to the tutorial below. You will have to wipe your previous personal data and apps as usual when installing custom ROMs. The following tips are important as they will help the installation procedure to go smooth without any issues. Let’s begin with the tutorial below.

Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We (MyTrickSource) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial:)

Android 4.1.2 NeatROM Features:

  • Fully Deodexed
  • BusyBox, SuperSU, Rooted
  • EFS auto backup
  • More Optimized
  • Increase Contacts adding for the message (1000 contacts instead of 10 contacts)
  • No Auto Converting messages to MMS
  • Enabled Camera Sound Menu
  • 4 Way Reboot
  • Enabled All Languages
  • Enabled All Languages For Samsung Keyboard
  • Faster GPS Lock
  • Enabled Sensor Aiding For Fast GPS Lock
  • Enabled More Contacts (999)
  • Disabled Scrolling Cache
  • MultiWindow (Enabled all Apps)
  • Skip signatures check
  • New Arabic Font
  • Enabled Input Method Notification
  • Cleaned Build.prop
  • Removed More Apps/Libs
  • More Bloatware Removed
  • NeatROM Boot Animation v4
  • Torch on Lockscreen
  • Choose any color for Status Bar
  • Choose any color for Clock
  • Choose Left, Center, Right or no Clock
  • Show/Hide AM/PM
  • NeatROM Wallpaper
  • Fixed AOSP Lockscreen (Disabled Ripple Effect when AOSP is selected)
  • CRT-OFF Toggle
  • Stock Lockscreen Toggle
  • Ripple Lockscreen Toggle
  • AOSP Lockscreen with SMS/Phone shortcuts Toggle
  • Brightness Slider Toggle (Show/Hide)
  • Edge Zoom Toggle
  • Back/Menu to Kill Toggle
  • Modded Mms (Sent Time instead of Received Time)
  • Enabled Hidden Call/Message Settings
  • Enabled Hidden USB Settings
  • USB Unmount Wakelock
  • New Battery Animations
  • Added Recent Button
  • Added Screenshot in Power menu
  • Added Recovery in Power menu
  • Power menu - Power Off Toggle
  • Power menu - Data Mode Toggle
  • Power menu - Airplane Mode Toggle
  • Power menu - Screenshot Toggle
  • Power menu - Recovery Mode Toggle
  • Power menu - Restart Mode Toggle
  • Smart Rotation Toggle
  • AOSP Lockscreen vibration Toggle
  • IME Switcher icon on Status Bar Toggle
  • Alarm Clock icon Toggle
  • Traffic meter on Status Bar Toggle
  • Traffic meter on Status Bar Color Picker
  • New Black Themed LidroidSettings app Integrated in Settings
  • New version of the S4 Toggles Integrated in Settings - Customizable
  • Power button on SB ON/OFF Toggle
  • Notification Panel Color Picker
  • New Aroma installer
  • Deodexed using latest smali/baksmali
  • Zipaligned using latest SDK
  • Modded Camera (Removed Camera Battery Warnings)
  • Wallpaper Scrolling
  • White Status Bar Icons
  • Themed SystemUI
  • S4 MultiWindow & S4 Calculator
  • New Brightness Slider
  • New Progress Bar
  • Automatically Send/Receive MMS
  • New Large Apn List
  • LockScreen Torch Toggle
  • Status Bar Buttons Toggle (Home, Recent, Home+Recent, None)
  • Battery Mod Toggle (33 different icons to use for your battery)
  • Restart SystemUI action after choosing one of the toggles
  • Added Portuguese to the Settings
  • Added Quick Unlock Toggle on PIN/Password
  • Added Lockscreen Rotation Toggle
  • NeatROM Control (Integrated in Settings)[/COLOR]
  • NeatROM Update (Integrated in Settings)
  • Wallpaper Scrolling Toggle
  • Exit Browser Toggle
  • Call Button in Logs Toggle
  • Contacts Photos Toggle
  • Battery Low Notification Toggle
  • Traffic Meter Location Toggle
  • AccuWeather Color Picker
  • Fixed StatusBar Background
  • Fixed S4 toggles Notification Background
  • Added TW Rotation Toggle
  • Enabled Camera During Call
  • Added Battery Bar Toggle
  • Added Battery Bar Color Picker
  • Added Battery Bar Style
  • Added Battery Bar Thickness
  • Added Battery Bar Animation  
  • and many more...

Samsung Galaxy S2 I9100 USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung Galaxy S2 I9100 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:
Download Samsung Galaxy S2 I9100 USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. Now please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:
Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data: 
Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy S3 backup data to HTC One X.
    If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

        1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode.

        2. Make sure your Android device is charged up to 80-85% battery level. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

        3. Most of the tutorials and how-to guides on MyTrickSource are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE on Facebook to thank us!

All set and ready? Good. Now, let’s proceed with the tutorial below and update Galaxy S2 I9100 to Android 4.1.2 NeatROM custom firmware.

How to Install Android 4.1.2 NeatROM on Galaxy S2 I9100

We have put together a detailed step-by-step instructions guide on how to install Android 4.1.2 NeatROM custom firmware on Galaxy S2 I9100. If you are used to installing custom ROMs on your Galaxy S2 I9100, then this should not be any different for you.

However, for beginners, you need to root your Galaxy S2 I9100 and install a custom recovery. Please Google that up if you are unsure and make sure you read the tutorial once before actually performing it on your device.

To Remember:
  • This tutorial is only for installing NeatROM Android 4.1.2 ROM on Galaxy S2 I9100. Please do not try on any other Galaxy Mega variants.
  • Your phone should be rooted and have ClockworkMod recovery installed from before.
  • This tutorial will wipe out all your data. Proceed at your own risk.
  • Perform a Dalvik Cache wipe before proceeding from the recovery mode.
  • Samsung KIES will NOT detect your phone after installing this ROM because it is a custom firmware.
  • Make sure you backup all your data in your phone before proceeding.

Entire Step-By-Step Instructions:

Step 1 - Download Android 4.1.2 NeatROM  for Galaxy S2 I9100 to your computer.

Step 2 - Connect and mount your Galaxy S2 USB memory on your computer using the USB cable.

Step 3 - Now copy/paste the downloaded Android 4.1.2 ROM zip file to your SD card. Make sure the file is in the SD card root (not in any folder).

Step 4 - Then turn OFF your phone and disconnect from the USB cable.

Step 5 - Now to get in the Recovery Mode. Switch ON the phone while pressing and holding Volume Up + Home + Power buttons together. You will get an exclamation mark now. Again, hold your Volume Up + Power buttons. You should now be in your Recovery Mode. 

Step 6 - Once you are in ClockworkMod Recovery, select perform a full data wipe by selecting “wipe data/factory reset”  Use the Power button to select everything while in the Recovery Mode.

Step 7 - Then, perform a cache wipe by selecting “wipe cache partition”.

Step 8 - Now this is optional, but it is recommended to perform a wipe of your dalvik cache as well. You will not get into boot loops or any other errors. From CWM recovery, go to ‘advanced’ and then select “wipe dalvik cache”.

Step 9 -Go to Mounts and storage, select "Format system", "Format preload" .

Step 10 - Then go back to the main recovery screen and select “install zip from SD card”.

Step 11 - Now select “choose zip from sdcard”. Using your volume keys, navigate to the Android 4.1 NeatROM zip file that you copied to your SD card and select it using the Power button. Confirm the installation on the next screen and the installation procedure should start now.

Step 12 - After the installation completes, go to “+++++Go Back+++++” and reboot the phone by selecting “reboot system now” 

Your Galaxy S2 I9100 will boot now and it might take about 5 minutes to boot on your first time. So, please wait.

That’s it! Your Galaxy S2 I9100 should now have Android 4.1.2 NeatROM custom firmware installed on your phone! Go to Settings > About phone to verify.

Hit +1 or LIKE on Facebook to thank us!

Need Help?

If you run into any problems in Installing Android 4.1 Neat Custom ROM on Galaxy S2 I9100, feel free to drop us a comment below and we will reply you back ASAP with the fix or the solution to your problem.


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