Philips DIT 7421/05 no JTAG Header - Need Software only solution

[cancunia]

Hi, I read elsewhere that some of the 7421 boards don't have a JTAG header, and the box I've bought is one of them! Surely there must be a way to enable just the DVB & PVR functions without a hardware mod, perhaps via some command line switches?

I looked throught the threads on software , plus the wiki and have tried patching the nk.bin using both the nkpatcher & nkbinpatcher, both produce an updated nk.bin but also, both give a different error message.

I also tried the following:

replaced nk.bin with both patchers

used the updated content files

used the BT diag files

altered command line switches

tried to put booterce into nk.bin using binmod, but got 'image not found'


I always seem to get a NR01 error message followed by a progress bar and what must be a reload of the base files from the BT server.

I think there must be a new version of nk.bin in use for both of the patchers to fail and binmod to fail.


Any thoughts?

Thanks

[is0-mick]

Yep.. thoughts are: It aint gonna happen!

All of the files are signed... the jtag bypasses the signature.

The only way is to use BT signed NK.BIN without the jtag mod.
Maybe BT will release a version in the future? but I wouldnt hold my breath....

The reason you get the errors is because the NK.BIN fails the signature check from the bootloader, and gives a NR01.

If the bootloader was patched (via jtag) then we always jump to the BOOT even if the signature fails, then you dont get the NR01

Hope this explains it.

Mick

[cancunia]

Thanks for the reply Mick.

So, all of the files are signed, even the .xml files in the content directory? Reason for asking is that I thought maybe there's some command line switches that can be tweaked.  No way to spoof the signature?
Sorry if this is obvious but I'm new to this.

I also tried a port scan, seems the only open port is 1027 (UDP)

[is0-mick]

All files are signed.. the rest are checked by booterCE.exe from the NK.BIN

Mick