MayGion has released two types of ipcam(until 09.27.2011):
To upgrade winbond ipcam,please visit here
This document describe the steps to upgrade mips ipcam firmware.
download mips ipcam firmware
open ipcam>Control Panel>System Information,if software/hardware has version like "oem mips(date)",your ipcam should be mips hardware.Otherwise,your ipcam should be winbond ipcam.
If your ipcam is already corrupt and can't open web pages,you can check the size of /tmp/eye/app/cs in CuteFTP,
if the size of "cs" is bigger than 400KB,it should be mips ipcam,otherewise it should be winbond ipcam.
Even worse,if you have delete all files in /tmp/eye/app or /tmp/eye/www by ftp,it does not matter.
Just try to upload mips firmware to check whether it is work,if not,try to upload winbond firmware.
Upload wrong firmware by ftp will NOT corrupt ipcam,it always can be find by IPCamRepair tool
When IP Camera power on,it first execute an app called loader,this loader give us a chance to repair corrupt firmware.
Make sure your router's IP is 192.168.1.1 and your PC'ip is 192.168.1.3,both netmask is 255.255.255.0 as normal. Run IPCamRepair.exe on your PC and power ipcamera on.
Upload app and www folder to /tmp/eye
After upload app and www folder,close IPCamRepair.exe.
ipcam will reboot automatically and IPCamTool should be able to find it.