ZyXEL Communications omni series user manual Kernel Mode

Models: omni series

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2.Start any communications program that supports the Xmodem protocol, and type:

ATUPX<Enter>

TA responds:

You have chosen Xmodem (128 octets of data with checksum) protocol to update your TA. Data in Flash ROM will be erased !!!

Are you sure (Y/N) ?

3. Press Y. The following message then appears:

Start programming, please upload.

4.Use the Xmodem protocol to upload the file ONETd.vvv to your TA. This step updates the TA’s flash EPROM with the new firmware. When installation is complete, the TA will restart automatically.

Kernel Mode

In the unlikely event that your TA fails to respond to AT commands after upgrading the flash EPROM follow the procedure below:

1.Power on the TA. The reset will prompt the TA to check the integrity of the codes in the flash EPROM.

2.If proper valid firmware can not be verified, the TA will initiate Kernel Mode. Once it is in Kernel mode, you can issue limited “AT” commands. From this point, you can start from item 3 of our upgrading procedure.

Upgrading Your omni 99

Page 111
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ZyXEL Communications omni series user manual Kernel Mode