SOLUTION OF BLUETOOTH DROPPING after 4.4.2 update
Yo !
I found the solution. No one has to downgrade Note 2 (N7100) to Jelly-bean in order to fix the Bluetooth range and WiFi dropping issue.
The fault is with the latest update from Samsung itself, May be it is a tactic to make people shift to the newer phones.(who knows) !
Anyway the solution to this problem is to Flash it with Odin it a previous release of 4.4.2.
In my case which is from the INU (India) region the release of August that is 29.08.2014 is a faulty update.
So i downloaded the older one and flashed it.. then everything worked perfectly as if the phone was new
Here is how to do it:- [BACKUP YOUR PHONE WITH KIES 3]
1. Check your version from *#1234#, Compare the version with Near August version of your Region. If it is same you better change it to get a way better performance.
2. Look up the earlier ROM version released from samsung-updated .com ,
http://samsung-updates.com/device/?id=GT-N7100&details=Galaxy_Note_2__International , I personally flashed it with the first version of Kit-Kat that came for note 2 in INU region. on the 8th April (08.04.2014).
3. Download ODIN
http://www.mediafire.com/download/mbvtjub21ehsxrl/Note+2+Odin.zip
4. Install Samsung USB drivers
http://www.mediafire.com/download/9qaqkld45387lzi/Skyrocket_GSII_ADB_Drivers.zip
[IF THE LINKS DON'T WORK then GOOGLE THEM AND INSTALL]
5. Power off your Samsung Note 2.
6. Hold Volume Down, Power, and Home Buttons at the same time. You will enter the ODIN DOWNLOAD MODE on your phone.
7. Press Volume up to Continue. It will Show "Downloading" "do not power off"
8. Connect your device to the PC where you have put ODIN and the md5 file (Firmware you want to flash with)
9. It will show connected to your device name on the top left of ODIN which means that it recognizes your device.
Click on PDA and select the firmware that u downloaded to flash Note 2 with.
It will lag for a few seconds but let it take its time.
When it is done. [Refer Image attached]
10. Press Start [It will take around 5 minutes, 3 minutes give or take]
11. It will Automatically Reboot your phone. Do not disconnect the USB cable.
After the boot is Complete ODIN will show a PASS on the left Side. Which means that the Flashing Process has been a Success.
If it shows fail then Repeat the process from STEP 6 all the way till STEP 11.
{ RECOVERY STEPS:- this will wipe all your data}
[Also, If device is Stuck at setup connection or on any other process, then disconnect your Note 2 from PC, close Odin, remove phone’s battery and put it back inside AFTER 5 seconds, press Volume up, Home key and Power key at the same time, When the Logo comes then Leave the Power button but keep pressing the other 2. Wait for it to show MANUAL MODE. Select Wide Data and Factory reset with Volume down and press power to continue, Then again wipe Cache.
Select Reboot . Now it should work perfectly.
CAUTION :- DO THIS AT UR OWN RISK.