Ok, thanks for the fast reply.
I think I'll try to use the OMA Download mechanism.

I have a Symbian application that'll be signed by a third party.
A SMS is sent to the user with a link to download the application.

What I'd like to do is to be able to identify the user who...

It may look like it, but when displayed on screen, it displays a vertical line, and it looks like the whole image only takes about 1/8th of the data a EGray256 image would (as expected from a 1bpp...

I'm trying to get the raw data of a EGray2 Bitmap. I've tried using:


TUint8* imageData = (TUint8*) iBitmap->DataAddress();

I was expecting to get bytes containing data for 8 pixels, but all...

Hi all,

I've got a problem with the 6730 camera in J2ME. I use the usual

videoControl = (VideoControl) player.getControl("VideoControl");
canvas = new VideoCanvas(this);
...

I see two possible ways to solve this problem:

1. Activate the card on the phone: in the main menu, go to NFC>NFC Settings and check that NFC is on and cards are always avilable.

2. Change the...

In the MIDP tab of the emulator's preferences, you have to uncheck "Override default handset behavior" or select "OTA Provisioning".
This way, the application will stay installed even after you...

Are you talking about emulating a tag in the emulator or having the phone behave as if it was a tag?

The first one is handled by the NFC Manager of the SDK. You can't control this in your J2ME...

You don't need the internal Secure Element to use secure Mifare tags. You just need to use Nokia's extensions to JSR-257 for accessing the security part of the tag.
The SDK documentation should...

The range is very limited. Something like 1cm for the 6131 and even less for the 6212 (it's easier to just touch the tag).

No, I use the Nokia 6212 Classic, so I don't know exactly how the ACR122U writes NDEF data on a Mifare tag. So I can't really help you with that.

The CRC should be explained in the pdf I've linked to in my last post.
Yes, the NDEF Message should be written from block 1 of sector 1, though there might be some Mifare specific header there too....

03 E1 is the Application ID for NDEF Content.
The C0 01 bytes are the MAD header. The first byte is a CRC and the second byte is an "info" byte. More details here.

I invite you to read Mifare 1K/4K specifications in order to get a better idea of how data is written on a Mifare tag.
You can also experiment writing NFC data in the NFC Manager (with the checkbox...

I haven't tried to put cardlets in the phone, I've just used the emulator so far.
From what I know, you need to unlock the SE and then you probably need a NFC smartcard reader/writer and some...

You don't put MIDlet in the SE but cardlets (Java Card applications). The SE is a storage area where data is stored and accessed through Java Card applications. You can then access the data with a...

Are you sure the target listener is initialized (try adding a sysout after the addTargetListener, to see if it is).
Is the targetDetected method triggered? (A sysout at the beginning of the method...

It's possible and works the same way on the emulator as one the phone.
All you need to do is open your connection (MFStandardConnection or NDEFConnection)with ...

It looks like you're trying to write in sector 14 with the default key. If it works on 2 phones but not on a third, this probably means that the sector 14 is locked on the 3rd phone (According to the...

The internal Mifare card of this 6212 might be protected. Do you write the data with a MFStandardConnection, accessing the MAD and creating/opening your own application or do you use the regular NDEF...

I'm pretty sure the confirmation is there for obvious security reasons: since data connection can be costly to the user, he has to confirm it. It also prevents tags that'd have the user go to a...

Yes it looks like the only use of Nokia's BT RTD is to send pictures... :(

Are you sure you didn't accidentally use "Bluetooth Printing" rather than "Bluetooth Pairing"? I haven't tried it myself, but I'd be surprised if something called "Bluetooth Printing" was intended to...

If you want the phone to start your application when reading a tag, you have to use the MIDP2.0 Push-Registry mechanism.
You could maybe use JSR-211 (Content Handler) as well, but I haven't tried...

There are 4 different kinds of Record Types that are supported by Nokia phones (and more generally by NDEF-compliant devices)


NFC Forum RTD, defined by the NFC Forum. There are four of them:...