Tips & Tutorials

Update Transformer Pad TF300T to Android 4.2.1 CM10.1 Nightly Jelly Bean Custom ROM

Android 4.2.1 CM10.1 Jelly Bean can now be installed on the ASUS Transformer Pad T300T. ASUS seems to have no plans to release the latest android 4.2.1 Jelly Bean for this tablet as an official software update, but the CyanogenMod team has brought it already on the TF300T. You can easily install Android 4.2.1 CM10.1 Nightly Jelly Bean on Transformer Pad T300T using the tutorial below. ClockworkMod Recovery should be installed to install this Android 4.2.1 ROM.

In this tutorial, we will tell you how to update Transformer Pad TF300T with Android 4.2.1 CM10.1 Nightly Jelly Bean custom firmware. This is a custom ROM, not an official update by ASUS. Make sure you create a backup of all your apps and personal data as you will have to wipe everything off from your tablet during the installation procedure. Also don’t forget to read all the tips given below. Let’s move to 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 ( 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 4.2.1 CM10.1 Nightly Jelly Bean Custom ROM Details:

NOTE: Since this is a nightly 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.

UPDATE: AOKP ROM based on Android 4.2.2 Jelly Bean is now available for this phone. Read the tutorial here!

ASUS Transformer Pad USB Drivers

You will need to connect your Android tablet with the computer. For that, please make sure you have installed the Android 4.0.4 USB drivers for ASUS Transformer Pad properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download ASUS Transformer Pad USB drivers!

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:

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 tablet, we strongly recommend you to also backup using that as it creates a complete image of your existing tablet set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android tablet 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 tablet goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your tablet 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 tablet 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 your tablet to the latest Android 4.2.1 CM10.1 Nightly Jelly Bean custom ROM update.

About the author

Haris Nadeem

He lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.

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