Reset the SE or the ME via the midlet

[Ebross]

Hi,

Is there a way, from the midlet to reset:
1- The SE?
2- The ME?

If yes, any example or any idea on how?

Thanks in advance,

Ebro

[prakash.raman]

HEy Ebross wat is ME & SE, i dont get short forms. can u tell me.

[Ebross]

HEy Ebross wat is ME & SE, i dont get short forms. can u tell me.

Hi,
Sry, was on hurry and did not explain the environment i am working on.
I am using as Mobile Equipement the Nokia 6131 NFC that uses a Secure Element (java card).

Thanks for your help,

Ebross

[prakash.raman]

Hey thats why i was confused why i didnt heard those terms, well now i know cause i havent wrk on java card, any ways hope some one might give u answer.

take care

[hartti]

Moved to (likely) better forum for this question

Hartti

[Ebross]

Hi Hartty,

I realised that there was an NFC subject on forum after I send the thread.

Thanks
Ebross

[Ebross]

I suppose that there is no way to do a reset on the Secure Element or in the Handset from the midlet?
Or does the SE do a reset each time is wake up by a magnetic filed?

[phoenix__]

What do you mean by reset the secure element?

[Ebross]

Hi phoenix,

By reseting the SE I mean a reinitialization of the SE. The SE being an Java card, it should have the back up features. For example, if we download/install an application to the SE by OTA using a midlet as a bridge, and something goes wrong (lost communication, etc) the only way in the java card to do a roll back (state as it was before the download) is by doing a reset. I was wondering if there is a way to do something similar via the midlet.

Regards,

Ebross

[phoenix__]

I've not done much with javacards, so don't know about that ... however as the SE is to javacard specs, however you do it with a real card you should be able to do the same with the SE.

[Ebross]

Thanks phoenix. I'll try, i will send an APDU cmd (ATR) to the SE via the midlet and see what happens.
Regards,
Ebross

[Ebross]

Hi,
What I just wrotte has no sense...
I am using a Nokia 6131 NFC, and I am trying to understand when does the SE boots
Is there a way to know the ATR send by the SE? (by default it should send one at every reboot)
Is there a way to force a reset to the SE, another way of turning off handset?

Thanks

Ebross

[phoenix__]

It is possible (and I believe the default state) to be prompted whenever the secure element is to be activated. If you move the phone to a powered cardreader (regardless of what the reader may try and do) you should be prompted to enable to SE for 60 seconds.

I presume that at this point, the SE will be 'booted'. Removing and replacing the phone during this 60 seconds does not reprompt so the SE is still powered.

If the midlet trys to access the SE the same enable SE prompt is presented, so I guess that it is booted up at this point as well rather than being in a predefined state.

[Ebross]

Thank you phoenix for your prompted answer
Just in case, do you know any reference concerning this?

Best regards,

Ebros

[phoenix__]

All of the above is based on experience ... but look at the wiki, and the other downloadable docs from forum nokia site.