The latest Android 6.0.1 Marshmallow OS can now be installed straight on the trusty old Samsung Galaxy S2 I9100 thanks to official CM13 Nightly custom ROM. Originally, we thought developers have finally left support for the Galaxy S2 after releasing custom ROMs up to Android 5.1.1 Lollipop but that clearly isn’t the case. CyanogenMod team has once again resurrected another treasure from the past. CM13 Nightly Android 6.0.1 Marshmallow custom ROM will bring all of the latest and greatest features to the S2. From Doze functionality to a customizable notification drawer, the experience would not lack on the Galaxy S2. The Nightly version indicates that CM13 is still a work in progress and new builds will get pushed straight to your phone everyday through the built-in OTA system. Even if you use Galaxy S2 as your experimental or backup phone, we think CM13 Nightly is a strong contender to substitute the firmware you are currently running. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update Galaxy S2 I9100 to Android 6.0.1 CM13 Nightly Marshmallow 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 ClockworkMod in order to flash the ROM zip and Google Apps zip files on your phone.
As you continue reading below, we will guide you through the entire process of how to install Android 6.0.1 CM13 Nightly Marshmallow on Galaxy S2 I9100 with complete steps. Don’t forget to read all the tips below that you have to keep in mind before proceeding. Please make sure you backup all your data as given below because this tutorial will wipe your data. The following tips are important as they will help the installation procedure to go smooth without any issues. Let’s get to the tutorial now.
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 (TeamAndroid.com) 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 6.0.1 CM13 Nightly Marshmallow ROM Details:
For those who are new to CyanogenMod, please read the following:
CyanogenMod (pronounced sigh-AN-oh-jen-mod), is a customized, aftermarket firmware distribution for several Android devices (See above for supported devices & how to install CyanogenMod on said devices). Based on the Android Open Source Project, CyanogenMod is designed to increase performance and reliability over Android-based ROMs released by vendors and carriers such as Google, T-Mobile, HTC, etc. CyanogenMod also offers a variety of features & enhancements that are not currently found in these versions of Android.
Here is a quick note for those who are going to install this release of CM13 for the very first time:
NOTE: Since this is not a final build, make sure you know that after installing this firmware update, your Android device can get FC errors, boot loops, several other bugs, apps might not work or worse, your phone might not boot. To fix, you will have to reinstall stock firmware or any other stable custom ROM.
Remember, this is not an official firmware update. This is a custom ROM, based on AOSP release of the Android 6.0.1 Marshmallow.
We haven’t really found any major issues or apps that do not work with this Android 6.0.1 CM13 custom firmware.
There are tons of useful articles and how-to guides on Team Android for the Samsung Galaxy S2 I9100 , but we think you might be interested in the following posts:
- Try Marshmallow on Computer: How to Try and Install Android 5.0 Lollipop on Computer – Complete Guide.
- Android 6.0.1 Custom ROMs: For a complete collection of Samsung Galaxy S2 custom ROMs, click here!
Like this CM13 Nightly ROM based on the latest Android 6.0.1? We love it too and we know you are looking forward to install it on your phone now. Now please read below for important tips on how to make sure your installation goes smooth and you do not end up with any problems.
Samsung Galaxy S2 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 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:
Backup and Other Important Tips
Done with the USB drivers? Perfect. The tutorial is on the next page, but first, 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:
- Backup your Apps. How? –> How to Backup Android Apps.
- Backup your SMS messages. How? –> How to Backup/Restore SMS Messages.
- Backup Contacts, Gmail and Google Data. How? –> Sync with Google Sync.
- Backup Call History. How? –> How to Backup Call History.
- Backup WhatsApp Messages. How? –> How to Backup/Restore WhatsApp Messages.
- Backup APN Settings: GPRS, 3G, MMS Settings. How? Note down everything from: Settings > Wireless & Networks (More…) > Mobile networks > Access Point Names.
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 Note 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. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.
2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. 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?
4. Most of the tutorials and how-to guides on Team Android 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 to thank us!
All set and ready? Good. Now, let’s proceed with the tutorial on the next page and update Galaxy S2 I9100 to Android 6.0.1 CM13 Nightly Marshmallow custom firmware.