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Thread: IRD Number

  1. #16
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    Big dog

    You are going to end Up with a schizophrenic DTiVo.

    The last six digits of the service number are the IRD number.

    The numbers you see in system info are not what you will see on the cards IRD number.

    The numbers are run threw some calculation that is the resulting number on the card. Haven't figured out the math.

    rustyfinger

    You might be able to do this but you will need to figure out the missing equation that the TiVo uses to generate the IRD number.

  2. #17
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    Oh ya

    Oh ya, the ird number assignment with the dtivo's is still a mystery! I have three dtivo's here(one phillips and two sony's), so maybe I should do some experimenting.

    rustyfinger

  3. #18
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    You are going to end Up with a schizophrenic DTiVo.
    I'm not sure what you mean by that. Does the operating system load differently based on the Service Number?

    My intent is to break the process for TiVo updating the software on the receiver. I'm going by the assumption that TiVo will use prudence in their upgrade process and not try to upgrade all receivers at once. The best way (that I can think of) for them to control the numbers of systems being upgraded would to use the Service Number. If the service number is not within the normal TiVo boundries, my logic follows that the receiver wouldn't be upgraded.

    Are you saying that if I put in an invalid service number that the system won't be able to reset the hard drives for that number? Are you aware of any specific problems this would cause?

  4. #19
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    I am saying you can put what ever you want as a serial/service number.

    I've used "1" ,"-1"," 001" etc.. I was able clear and reset and all worked fine.

    My concern is that if they send the update from the sat and that update behaves differently based on the service number when it unpacks. What is your tivo going to look like when it is finished?

    The sat has no way of knowing what ssn number your tivo has.
    The comunication between the sat and the tivo is one way.
    Sat sends, reciever recieves.

    So a schizophrenic DTiVo will not know which personality it has at the point the update occurs.

    WIll it take it?

    Who knows.

    Will it say upack all puke the TiVo?

    The only sure way to prevent the TiVo from reciving any updates is to remove it from the stream.

    That makes watching TV no fun at all.

  5. #20
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    Originally posted by T_RJ

    The numbers you see in system info are not what you will see on the cards IRD number.
    huh?, when I do a read on my card, the IRD # is the same as the system info IRD #...

    BBQ

  6. #21
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    BBQ

    These are some of my test results

    "IRD Number TiVo" was taken from SYS info screen.
    "IRD Number Card" was taken from hu extreme card info screen.
    As you can see they are not the same.


    IRD Number TiVo = 53284694
    IRD Number Card = 1395148436
    TiVo serial number xxxxxxxxx284694

    This is a valid SN there for the XX
    ___________________________________
    IRD Number TiVo = 53000000
    IRD Number Card = 2061880340
    TiVo serial number 0
    ___________________________________
    IRD Number TiVo = 53000000
    IRD Number Card = 2061880340
    TiVo serial number 000000000000000
    ___________________________________
    IRD Number TiVo = 53000001
    IRD Number Card = 1392508929
    TiVo serial number 000000000000001
    ___________________________________
    IRD Number TiVo = 53000002
    IRD Number Card = 1392508930
    TiVo serial number 000000000000002
    ___________________________________

  7. #22
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    Originally posted by T_RJ
    BBQ

    These are some of my test results

    "IRD Number TiVo" was taken from SYS info screen.
    "IRD Number Card" was taken from hu extreme card info screen.
    As you can see they are not the same.


    IRD Number TiVo = 53284694
    IRD Number Card = 1395148436
    TiVo serial number xxxxxxxxx284694

    This is a valid SN there for the XX
    ___________________________________
    IRD Number TiVo = 53000000
    IRD Number Card = 2061880340
    TiVo serial number 0
    ___________________________________
    IRD Number TiVo = 53000000
    IRD Number Card = 2061880340
    TiVo serial number 000000000000000
    ___________________________________
    IRD Number TiVo = 53000001
    IRD Number Card = 1392508929
    TiVo serial number 000000000000001
    ___________________________________
    IRD Number TiVo = 53000002
    IRD Number Card = 1392508930
    TiVo serial number 000000000000002
    ___________________________________

    Well, the only difference I see is one is in HEX and the other is DEC...in examples above:

    IRD Number TiVo = 53284694
    IRD Number Card = 1395148436 HEX = 53284694
    TiVo serial number xxxxxxxxx284694
    __________________________________
    IRD Number TiVo = 53000001
    IRD Number Card = 1392508929 HEX = 53000001
    TiVo serial number 000000000000001
    ___________________________________
    IRD Number TiVo = 53000002
    IRD Number Card = 1392508930 HEX = 53000002
    TiVo serial number 000000000000002
    __________________________________

    When I look at my card in BasicH I get:
    IRD Number TiVo = 532C127A
    IRD Number Card = 1395397242 HEX = 532C127A
    TiVo serial number xxxxxxxxx2C127A

    These are exzactly the same...what i am trying to figure out is the how the TiVo serial number on box (& back of unit) = IRD # in SYS menu...If I take my serial # on box (47087945) and X by 29 = 1395397242. Change that to HEX and I get my IRD # 532C127A.

    Does this work for others....?

    BBQ
    Last edited by BBQ-AllStar; 03-14-2002 at 07:20 PM.

  8. #23
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    Mar 2002
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    good catch

    Good catch BBQ!

    Know I see why you asked me for my serial number earlier. PM me either on this forum or the other one, and let me know what number you want(where you want me to get it from - the box or the menu), and I will pm it to you. Hopefully you will come up with the correct number and then you have it figured out. I guess I could just multiply by 29 myself, but PM anyway.

    rustyfinger

  9. #24
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    I already PM'd you over at AT hours ago...

  10. #25
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    My bad!!

    I am a dumb ass.

    I never gave the hex/dec a thaught.

    Boy do I feel STUPID !!

    Thanks for making me feel stupid on my Birthday Just kidding

    This makes the IRD/serial number a lot more intresting now that I have been enlightend.

    I will check my box's SN x 29 and see if equalls the IRD # as yours did.

    I'll post the results.


    BBQ Thanks Again

  11. #26
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    No worries T_RJ!!!

    I've done the same thing many times...

    Anyways,

    HAPPY BIRTHDAY!!!!

    BBQ

  12. #27
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    The sat has no way of knowing what ssn number your tivo has.
    The comunication between the sat and the tivo is one way.
    Sat sends, reciever recieves.
    T_RJ

    I agree with you, the sat has no way of knowing what SSN I have, but TiVo does.

    Imagine you are an engineer working for TiVo and you are tasked with upgrading all of the customer units with the latest software. Will you dump the update into the stream and allow all active systems to update at once? What if there is a problem with that particular build? What about differences between models of boxes?
    You will have to dump the update onto the stream, because you don't have a choice. But you will control when the recievers actually install the update and how the update is installed (probably) by the service number. During the nightly service updates you will probably command a certain number of systems to take the upgrade. Again the obvious way to control who gets the upgrade and who doesn't would be through the service number. There is a good chance that if your number isn't on TiVo's list, you don't get upgraded.

    Of course if I were that engineer, I would also have the update trigger on one other variable. If the unit were to have a file called SubTest in a certain directory, I would probably also force the upgrade. <grin>

  13. #28
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    I 've tried x29 on three different dtivo's 1 sony, 1 philips, and a hughes. No joy

    But now that we no how to convert to hex ( Duh ) we should be able to match the DTiVo IRD # to the same as other non DTiVo recievers.

  14. #29
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    BigDog

    Good point.

    An other way would be that DTV decides that it will make some changes to the streem. This change is compatible with the new TiVo software but not with the old. The new software is able to use the old stream as well as the new. TiVo upgrades subscribers to the new SW. The software is downloaded through the stream but is missing the install key, it is only recieved by a call home.


    DTV makes the stream change two months later.

    All unsubscribed watchers loose TV.

  15. #30
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    Try this...

    If you have a HEX --> DEC converter or calculator...

    IRD # in HEX (found in Tivo menu) divided by Serial # on BOX in HEX WILL EQUAL 1D (in HEX) or 29.

    You can't multiply by 29 in Decimal...doesn't work. I found this method to work on 3 Philips models...

    So...

    IRD # HEX / 1D = BOX # HEX

    change Box # HEX to decimal and waala...this should be the # found on your box or the back of the unit...try it.

    T_RJ

    Is your Philips serial # 48108566 on the back of your unit or box??

    What do serial numbers on hughes & sony look like??

    This doesn't really mean anything though....just that Philips serial numbers on the back of the units are "variations" of HEX format found in TiVO menu.

    Sony's already come in hex right? example:

    011-0000-53XX-XXXX on unit & box equals

    53XXXXXX in TiVo menu....correct?


    Anyways...

    BBQ
    Last edited by BBQ-AllStar; 03-14-2002 at 08:40 PM.

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