- 01-14-2013, 04:45 AM #1
After few weeks of using the phone, yesterday I tried to use NFC to send photos to Galaxy SIII, and the phone asked to enable Bluetooth? If need to enable Bluetooth first, what's the point of using NFC to transfer photos? And yesterday it failed, the Galaxy SIII can only detect but nothing happened. Haven't tried it on other Lumia 920 yet.
So, I sent the photos using Bluetooth to the SIII and it worked. Very quickly and convenient.
- 01-14-2013, 05:07 AM #3
As I understand it S3 uses wifi direct after its made a NFC connection and L920 uses Bluetooth after NFC e.g the NFC just helps pair the two phones to send the data over another technology as NFC transfers are quite slow. It is abit annoying you cant send from wp8 to droid via nfc as they use different tech but maybe one day they will support each others systems
- 01-14-2013, 10:30 AM #6
Gonna try it on other Lumia 920 to see whether it works just like the advertisement.
When the rooms are empty or not crowded, it's actually easier to send using Bluetooth. Beside, it can find the SIII and connected to it using Bluetooth pretty fast.
- 01-14-2013, 11:21 AM #7
01-14-2013, 01:49 PM #8
- 9 Posts
Hope Nokia will improve the NFC tap and send function on WP8, so it'll be just really tap and send to share file(s).
- 01-15-2013, 07:11 AM #11
I wonder if the payment method using NFC, is it using Wifi Direct or Bluetooth. Or perhaps, the counter will ask. "How would like to pay your bill, Sir/Ma'am? By Bluetooth or Wifi Direct."
In current method, it's not Tap+Send, but Tap+Tap+Tap+Tap+Send.
01-15-2013, 07:50 AM #12
- 60 Posts
NFC on that horrid excuse of an operating system Android reminds me of this article - gaining control of Android phones or activating any terrifying malware while they are still in the user's pocket.
eScan: discovered a new vulnerability Android – attack via NFC
Researchers at the company MWR Labs demonstrated at the conference EUSecWest, held September 19-20 in Amsterdam, a new exploit the mobile platform Android.
Hacker attack was made with the use of “near-field communication” (NFC).
Through NFC-connection specialists MWR Labs managed to pass between the two smartphone Samsung Galaxy S III malicious file, which is a zero-day exploit. Self-triggering the exploit allowed complete control of the receiver. Attacker could execute arbitrary code and gained access to the SMS-messages, pictures, contact lists and other information stored on your phone.
NFC – technology of contactless data exchange with a small (2-10 cm) radius of action – is becoming an increasingly popular method of payments, easily turning the phone into a credit card or electronic purse. To make a payment via NFC only need to bring the phone to the reader in the turnstile, or just stand in the poster on the wall.
Unfortunately, the rapid spread of NFC has meant that mobile phones have acquired a number of vulnerabilities inherent in the new technology.
“Developers NFC made some mistakes, which are now willing to use the attackers – comment eScan experts in Russia and the CIS. – For example, cybercriminals can create incorrect NFC-message reads disable their phone via NFC transmit malicious links and files, as well as substitute NFC-tags to false, which leads to illegal debited from the accounts of users. “
To prevent attacks similar to those demonstrated MWR Labs, it is necessary that the resulting file is transmitted via NFC applications on the phone only after additional Confirmation user. Perhaps in the future of mobile phones manufacturers implement the option of the acknowledgment and will include it in your phone’s settings by default. The same option is required the user to clearly see the link received via NFC, and confirms traversed. In addition, experts recommend that users eScan NFC-devices to make payments only through trusted labels.
- 01-15-2013, 08:26 AM #13
Windows Phone 8 support both Bluetooth and WiFi tor tap+send feature although the wifi part is not wi-fi direct (Android only feature) and requires two phones connected to the same wifi network. But wifi does work and transfers files much faster than Bluetooth.
- 01-15-2013, 09:37 AM #15
Let's say on average, the picture taken using the camera will have around 2.5 MB of size.
The supported NFC speeds, 424 kbit/s (theoretical), so in real life, let's say we take 1/3 of it, so = 141.33 kbit/s
Time taken = (2.5 MB*1024 kB*8 bits) / 141.33 kbit/s
= 144.9 seconds
= 2.4 minutes.
- 01-15-2013, 10:19 AM #17
NFC is a set of defined message types. So to send a large files, you will need to encode and embed the files into a message body. So, it does not come out as simple as you suggested. It's more like try to send a picture through SMS without using the MMS (and use cellular data) feature. Doable but not what anyone wanted and it is not standardized either.
- 01-15-2013, 10:44 AM #18
01-15-2013, 11:10 AM #19
- 369 Posts
From reading this, I think you're missing the point. The files do transfer via Bluetooth, but use NFC to pair the phones to enable Bluetooth transfer. Take NFC out of the equation and you have to the pairing process manually, which is more time consuming even in the most convenient circumstances.
NFC tap, phones paired, transfer via Bluetooth
Set phones to discover other devices by Bluetooth on both phones, wait for discovery, ask for the Bluetooth password for both phones, enter password, wait for connection, transfer via Bluetooth.
- 01-15-2013, 11:33 AM #20
I did between an L920 and 8x and it works alas not as smooth as the commercial suggests. It takes quite a few seconds through BlueTooth. A little bit faster on WiFi. But definitely not as fast as you would thought. Try those Samsung GS3 commercials. Tap the phone to transfer a video while a taxi is driving away. That's pure fanctasy land.
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