It still seems that Android 4.4 KitKat is the latest version of the system, but let's remember that the four were introduced back in the fall of 2013! Over all this time, several firmware editions of this android have been released, these are 4.4.1, 4.4.2, 4.4.3 and 4.4.4. The biggest changes affected the basic version. There is no point in listing them all; this is a site with firmware, not an information resource for geeks.
One has only to mention the quantitative changes in subversions. This is necessary so that you understand exactly what firmware you need to download, and whether it is worth downloading at all.
Android version 4.4.1 received minimum changes, which is very strange, since usually after the first release many bugs appear that are fixed in the next build.
Update 4.4.2 is useful in that it introduces a useful wireless monitor feature. Thanks to it, it became possible to view photos taken on a mobile gadget on the large screen of a smart TV with Wi-Fi. The most useful firmware version with Android 4.4.3. It received the largest number of changes and additions, comparable to the differences between the basic version and the previous generation. Numerous errors with the operation of the Internet, camera and system programs have been fixed. Well, Android 4.4.4 released only due to fixing glitches with security protocols.
It’s up to you to choose which firmware to download, but we recommend downloading only official assemblies in Russian language and preferably not beta. Alternative and other custom firmware can do more harm than good. Although, if you know how to flash a phone or tablet on Android (for example, with the Odin program), then this will only be an advantage for you.
It would be a good idea to remind you that before installing the firmware you need to make a full backup of the system!

Latest 20 added Android 4.4 KitKat firmware

date	Smartphone	Android	Link
02-10-2017	Impress_Alfa_SDcard on VERTEX Impress Alfa	4.4.4
02-10-2017	impress_brainstorm_0.6.2 on VERTEX Impress Brainstorm	4.4.4
02-10-2017	m942g_v1 on SUPRA M942G	4.4.4
25-09-2017	20150126 for Acer Liquid Jade Z	4.4.2
13-09-2017	m725g.rar on SUPRA M725G	4.4.2
13-09-2017	m847g.rar on SUPRA M847G	4.4.2
13-09-2017	1.0 on Acer Iconia Tab B1-A71	4.4.1
13-09-2017	App. Guide_Acer_20150126_A44K_A on Acer Liquid Z410 Duo	4.4.4
05-07-2017	20121224_v1013 on Digma Plane 1601 3G	4.4.4
17-06-2016	Open Source Code on Lenovo TAB 2 A7-20F	4.4.4
01-05-2016	Miui7 on DEXP Ixion XL240 Triforce	4.4.2
01-05-2016	XL240_R01_07/25/2015_V1.0 on DEXP Ixion XL240 Triforce	4.4.4
24-03-2016	Rev.3-4 for CWM recovery on Digma HIT 3G	4.4.4
24-03-2016	06.11.2015 on Digma HIT 3G	4.4.2
24-02-2016	qumo507_(zp780_port) on Qumo QUEST 507	4.4.2
15-02-2016	tt1040mg on Digma Optima 10.7	4.4.4

Now even users of the first generation Galaxy Note phablet (N7000) can enjoy the capabilities and performance of KitKat firmware, as they have already released a stable build of C-ROM 7.1 based on Android 4.4.4 (AOSP).

Features of Android 4.4.4 C-RoM Build 7.1 firmware

Here is a short list of features that have been added to the new Android 4.4.4 C-ROM build:

• App Bar
• Dark C-RoM
• Active Display
• Floating Windows
• Gesture Anywhere
• On-The-Go Mode
• Animated controls
• Lock screen notifications
• Implement App Sidebar

If you are interested in reviving your Galaxy Note N7000 phablet, below are step-by-step preparations for flashing and detailed instructions for installing the C-ROM build on your device.

However, we warn you in advance that you are responsible for the consequences of your actions. If your smartphone gets damaged during installation, you are entirely responsible. You perform all actions at your own risk.

Preliminary preparation:

• This manual is intended exclusively for the Galaxy Note N7000 phablet model. Be sure to check your device's model number in Settings (About phone).
• Make a backup of your system using a custom recovery - ClockworkMod (CWM) or TWRP, as in case of any errors you need to be able to restore your phone. In recovery, use the backup option, and if necessary, restore.
• Make sure that all the necessary drivers for your smartphone are installed on your computer, but if you have not done this, then the drivers for the Galaxy Note N7000 can be downloaded here: download.
• Enable the USB debugging option in Settings: Settings / Developer Options (Note: Click 7 times on the firmware build number to unlock and reveal hidden features, including USB debugging mode).
• Make sure your device is charged to at least 80% to prevent your Galaxy Note from unexpectedly shutting down while installing firmware.
• Make sure that the device is unlocked, that is, if it is not locked to an operator, and you also received root rights along with the latest version of the recovery. If you have never installed CWM recovery, I advise you to watch the video below.

• If your device gets stuck while booting or has problem with constant rebooting, then perform Wipe Cache Partition and Wipe Dalvik Cache before next reboot.
• After installing the firmware, give it some time to stabilize before working with it.

So now you need to download the following:

• Special application package Google Apps Android 4.4.4: Google Stock and Full Package
• You also need recovery Philz Touch Recovery v6.07.9 (CWM Recovery 6.0.4.5 -> install the .tar file using Odin v3.09)

How to install Android 4.4.4 KitKat firmware on Galaxy Note N7000 using a custom C-ROM build:

• Step 1. Download custom firmware Android 4.4.4 C-ROM to your computer.
• Step 2. Connect your Galaxy Note to your computer using a USB cable.
• Step 3. Copy the downloaded C-ROM file to the root folder of your smartphone's SD card.
• Step 4. Turn off your Galaxy Note and disconnect the USB cable from your computer.
• Step 5. Now turn on your smartphone in recovery mode by pressing and holding the Volume Up and Home buttons.
• Step 6. Once your Galaxy Note boots into CWM Recovery, do a Wipe Data/Factory Reset, but before that you should have backed up your data.
• Step 7 Then you need to do Wipe Cache Partition and wait for the process to complete.
• Step 8 Then also make Wipe Dalvik Cache. To do this, you need to open the “advanced” item and select Wipe Dalvik Cache. This can save you in the future from any errors and constant system reboots that can happen when installing new firmware.
• Step 9 Now go back to the main recovery menu and select the Install Zip from SD card option.
• Step 10 Then select Choose Zip from SD card. Use the volume buttons to find the desired firmware file that you copied to the SD card earlier. Confirm your selection by pressing the Power button. Confirm on the next screen and the installation process will begin.
• Step 11 After finishing installing the firmware, you need to select “+++++Go Back++++++” and click on Reboot System Now from the recovery menu.

After everything, the Galaxy Note will reboot. Don't worry if the first boot takes longer than usual.

Your Galaxy Note N7000 will now run the latest version of Android thanks to the C-ROM build. To check this, go to Settings/About phone, where you will see the installed firmware version.

Android 4.4 KitKat is the latest version of Google's OS, creating which the developer had the goal of making it accessible to all gadgets. Taking care of its users, Google has developed a special application that allows you to check how the new version will work on a specific device. This year's new models will have the latest version of the OS, while everyone else can upgrade to Android 4.4 KitKat.
Traditionally, the new version will provide an increase in performance, but the most visible updates affected the interface. The developer also changed the color of the design, inviting users to make their own choice. Another change concerns the use of the display. In addition, the updated version has several additional profiles for Bluetooth. In addition, KitKat allows wireless printing of various documents, and also received a new graphic editor. Along with the release of the next update, qualitatively new ones appeared, presented in all existing genres.

How to update Android to 4.4 on a tablet or phone?

The easiest way is to download Android 4.4 from the developer’s website, and then follow the instructions to download and install the OS update.
You can also install the files manually, using a home PC with fastboot and adb installed and a USB cable to connect these devices to each other. Then you need to do the following:

1. Connect your tablet to your PC and boot it into bootloader mode.
2. On the command line, write fastboot flash recovery specifying the file name.
3. Reboot your device into a new recovery by entering the adb reboot recovery command.
4. Download the archive file with the latest version of SuperSU.
5. Flash the unpacked file via TWRP or Clockworkmod.
6. Reboot your device and use it.

If your tablet has an alternative recovery, you can download and directly install the Android 4.4 KitKat update on your tablet.

1. Download it from the Google website.
2. Download the zip file to the tablet using the adb sideload command without unpacking it.
3. Reboot your device and use it.
When installing an update, do not forget that it does not always end well. In some cases, a new OS version may perform worse than the previous one.