Samsung ATIV S problems

i was waiting official 8.1 but....

i had some problem.
I have official GDR3, installed without tricks.

The worst thing is system meory. It grows and grows, until i made an hard rest. Now it's almost 7GB. It's the same to others? any solutions, apart sometime do an hard reset?

NFC: i tried with 2 lumia only, but i can't nor receive nor send any files. Obvously i turned on nfc and bluetooth. Same with windows phone system app and with samsung beam. Maybe it works only with samsung devices' Or mine have problem?

Thanks you, best regards (i'm italian, i hope i explained myself)
 
There is a trick to send files over NFC!
Just get the phones together (back to back) on opposite sides (the top of one at the bottom of another). The Ativ S should vibrate when makes the connection.
This is the only way I could get NFC working. It was tested with a Lumia 920 and a Android Phone!
 
Ah, I don't know if this was posted before, but I am suffering a lot failures with bluetooth connections. I constantly use a bluetooth headset, which is paired only with my phone. After turning it off and desconnecting from the phone, sometimes the bluettoth crashes, causing reboots and freezings. Sometimes I can't even connect my headset again, so I must do all steps of pairing the headset again (daily base).
This happens since I bought the phone, but get worse after WP 8.1 Preview.
 
Well, i have a lot of reboots lately, 128GB sd card was ejected once, then i reinserted and nothing else happend.
location takes a lot after installed 8.1 preview, now takes between 3 to 10 minutes, even if i disabled and then reenabled, or open and close seveal times the app that uses location, the most of times i give up and close the app and disabled location services.
camera is not working properly, you need to disable flash every time you take a picture, and if you have enabled flash, only works the first time, then you need to re enabled it to work on next shoots .

well maybe the new firmware finished this problems
 
There is a trick to send files over NFC!
Just get the phones together (back to back) on opposite sides (the top of one at the bottom of another). The Ativ S should vibrate when makes the connection.
This is the only way I could get NFC working. It was tested with a Lumia 920 and a Android Phone!
i tried with the 2 phones back to back and didn't worked.
I'll try again. Did you used the microsoft system app or the samsung one?
thanks you.