Google's Android 4.3 Jelly Bean test firmware update for Samsung Galaxy Note 2 has been leaked.

Previously, it was reported that the update for Note 2 was withdrawn as some Galaxy S3 users encountered some issue on their handsets after receiving the update. The update will roll out once the bugs have been fixed. [More details of the issue areavailable here]

A user can now try his/her hand on the test firmware for Note 2 which is said to bring several changes to Note 2 user interface. Following is the complete changelog for Note 2, according to Android Authority:

- OpenGL 3.0 Support

- ANT+ Support

- Samsung KNOX Implementation (KNOX bootloader and dedicated application)

- Samsung Wallet comes pre-loaded

- Improved RAM management

- Improved Display colour reproduction (Display looks much sharper than before)

- Improved TouchWiz Launcher (Much less launcher redraws and less lag)

- New Samsung Keyboard

- New Samsung Browser (Full screen by default, new tab interface and more)

- New Reading Mode (Optimises display for reading, used by only a few specific applications)

- New Camera firmware

- Minor UI tweaks (Contacts app, Flashlight Widget, dialog boxes etc)

It has been further revealed that the leaked ROM is only compatible with the N7100 version of Galaxy Note 2.

Following are the step-by-step instructions to install the firmware:

- Extract (Unzip) the 1.2GB firmware file from here. (Regular Download)

- Download Odin3 v3.09 from here or here.

- Extract Odin .ZIP file

- Open Odin3 v3.09

- Restart the handset in download mode (Press and hold Home + Power + Volume Down button)

- Connect the handset and wait until the blue sign in Odin

- Add AP_N7100XXUEMK4_2099172_REV04_user_low_ship.tar.md5 to AP

- Add BL_N7100XXUEMK4_2099172_REV04_user_low_ship.tar.md5 to BL

- Add CP_N7100DDEMJ9_REV08_CL1423182.tar.md5 to CP

- Add CSC_ODD_N7100ODDEMK1_2099172_REV04_user_low_ship.tar.md5 to CSC

- Uncheck the re-partition option (if ticked by default)

- Click the start button and wait for a few minutes

- If the user faces any issues with the firmware, he/she can boot into recovery mode (Home + power + vol. up)

- Choose to wipe/factory reset. (This will erase all the data from the handset and the SD card, if included)

- Choose to reboot

[Disclaimer: The above mentioned steps are not guaranteed to work exactly as stated. International Business Times would not be responsible for any loss of data from the device while implementing the steps. For details, users can question Sam Mobile website or can see for more details here.] 

Meanwhile, Samsung has released an improved battery for Galaxy Note 3 which has twice the original battery capacity.

Galaxy Note 3 is already backed by a powerful high-capacity 3200mAh battery that allow for longer periods of multi-tasking on the phone. Now, Mugen Power, a leading extended batteries brand, has come up with a massive 6,500mAh Li-Ion extended battery for Galaxy Note 3 which has twice the battery capacity of the original.

The new battery comes with an add-on battery door which comes in black and white options.

The battery is available all for all models of Note 3 and is available for pre-order from the Mugen website for $98.50 (₹6,100 approx.). The shipping of the extended batteries is free worldwide and will commence from 6 December. [The battery can be pre-ordered from here]