Hard Brick Ace, need help, my phone is doing strange things topic

Hello ,
I was flashing my 5830 with CWM then he shuted down while he was fully charged.
I was'nt able to reboot in any way (regular , download, recovery) : my screen is black, not even a little light.

But i plug it into the computer, and this time odin recognised it as 0:[COM17].
I was happy, and i put the firmware from samfirmware, and started flashing.
But he gets stucked at setup connection because he says that he can't open the serial COM port.

What can I do ?

Thanks, Kal.
PS : I need my phone tomorrow :crying: so please answer quickly ;)

Doing a factory reset and keeping root topic

I have a rooted Note 3 and was wondering is it possible to do a factory reset and keep root? I am considering selling my note so I want the phone to be completely wiped of my personal information but have it retain root as I think that will help the resale. I have not flashed roms I am still using stock but am using things like xsposed installer. Thanks.

Sent from my SAMSUNG-SM-N900A using xda app-developers app

Am I doing something wrong, or is this normal for a Note 3? topic

It feels like something is wrong here, I'm running official 4.2.2, and while the battery life in itself is not bad I feel like it's draining way too fast when I'm not even using the phone. My other phones (S4,S3,Desire HD) always had screen using by far the most battery, usually around 50-60%.

Also, the screen was on for 2 hours when I took this picture.

Some more useful information:

-GPS off
-Location off
-Google now off
-Whatsapp installed
-Facebook installed (not messenger)

Any input would be really appreciated.

Attached Thumbnails