Upgrading Your Modem - ZyXEL Communications U-336S User Manual

11

Upgrading Your Modem

Upgrading by Flash EPROM
1. Obtain the new firmware by downloading from the ZyXEL
BBS, WWW or FTP site. See Contacting ZyXEL on page vi
for the FTP address.
2. Turn on your computer.
3. Turn on your modem.
4. Start any communications program that supports the XModem
protocol.
5. Type ATUPX.
6. Press Enter and wait for the following prompt characters:
You have chosen XMODEM (128 bytes data
with checksum) protocol to update your
modem. Data in Flash ROM will be erased!!!
Are you sure (Y/N)?
7. Press Y. The following message then appears:
Start programming, please upload....
8. After the
file U336Evv.vvv to your modem. This step updates the
modem's flash EPROM with the latest firmware.
9. When the installation is complete, the modem restarts
automatically.
140 Upgrading Your Modem
prompt, use the XModem protocol to upload the
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