Hi there!
1. For details about how to change the passwords on different accounts, see
http://support.huawei.com/hedex/ ... stions&lang=en.
2. To clear the password, you can use the RST button on the NE05E.
However, this operation deletes the configuration file too. Therefore, exercise caution when performing this operation and back up the configuration file in advance.
Once you press the RST button, the device starts to reset. Then you press and hold down the RST button for 10s to 12s until all the LINK/ACT indicators blink. Then release the RST button so that the device starts to automatically delete the passwords and configuration files. If you keep holding down the RST button (approximately 10s) until the LINK/ACT indicators won't be blinking simultaneously, the device only resets and does not delete the passwords and configuration files.