QUOTE(inspuration @ Aug 2 2010, 01:48 AM)

You fucked yourself out of a JTAG is what you did. Way to go.
maybe, I don't believe he specified what kernel he was on before updating, but maybe being a little more helpful then useless is the way for you to go.
mid292-
What error code comes up on the TV if any? Sounds like you just have a console that is suffering from the RROD, though the update could have messed up but that is unlikely unless you powered off your console while it was updating.
No, I don't believe Microsoft released an update that bricks your console, they tried to cripple your hard drive a few months back but they ended up giving the ability to make saves, etc back but only on that console, if you moved your HDD to any other console your data would show up as corrupted.
The R6T3 resistor is used to supply a voltage to the CPU that blows 'Efuses' that tell the xbox kernel what update versions are allowed and since the summer of 09' update any kernel past 7xxx and made past 6-18-2009 would be locked out of the JTAG hack which is essentially the hardware version of the KK exploit. The Jtag allows you to execute unsigned code like games with mods, homebrew, or linux.