My modem failed in firmware upgrade program. How should I do now?

Before you use our firmware upgrade program, we still need to remind you that the AP only support 95 or 98. If you do the upgrade job under NT, it will fail. Our web site will put the latest version upgrade program. When you type 'AT' in the 'Hyper Terminal' of 95, it will show 'OK'. It means your modem still can accept the AT command and you can use our firmware upgrade program. Once you get an 'error' message after you type 'AT' in the 'Hyper Terminal' of 95, you modem need to repair. Please send your modem to the reseller where you buy, they will repair it and send it back.

type in hyperterminal ( or other modem terminal if you don't use windows, like minicom in linux ), ATI3. If your firmware version is very old you can't upgrade to last version directly, because old versions doesn't have support for write flash with AT flashing  commands. You'll need upgrade to a intermediary version first.