Firmwareupdate for Zyxel U1496B

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Hi!

G.Richter wrote:
> I want to update the Firmware of my Zyxel U1496B internal Modem. I have
> downloaded the File rm616b.u24 and rm616.u25 have bured two new eproms an
                                                    ^^^^^ burned or bured?

> insert them. Now the LED blinks (verly) slowly and the modem doesn't
> respond anymore, even not echos the characters I send.

This problem is not related to mgetty. My guess is, that something on the
new Eproms is wrong. Did you erase them before? Did you check that the
Eproms contain the same data as the files you downloaded? Maybe even the
download of the new Eproms had problems. Did you download the files again
and check they are the same?

> Has anybody done this before and can tell what I have to pay attention on?

Yes, I have done several updates of the Eproms and I never had problems.
Make sure, your Eproms really contain the new firmware. This is the most
probable problem.

> Or has anybody done an update to a U1496B with another Firmwareversion
> which works with mgetty and can mail me the binaries?

mgetty works and worked with _every_ firmware release, so this is _no_
problem with mgetty, it is a problem with your Eproms. A new mgetty binary
will not help you. Please check the ZyXEL modem manual to see what the
slowly blinking LEDs mean. Usually they blink for n times and then they are
off for a while. This number n is an error code detected by the modem during
the selftest. You can check the manual for the meaning of this error. Again:
I guess it's an Eprom CRC error.

Bye,
Marc

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