Error 1721

A

AutoX

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Hi everyone,

Here is the story, I get a error 1721 on my windows 7 laptop when I try to install my vodafone mobile connect lite software.

It states the following:

Error 1721: There is a problem with this windows intaller package, a program required for this install to complete could not be run.

Any help with the above would be appreciated.

I have also noticed that windows 7 sees my modem as a cd drive or mass storage device and not as a modem.

I have phoned vodafone support but they could not help very much.
 
First link on Google:
http://support.microsoft.com/kb/891985

Reregister Windows Installer (remove the modem).

After you're done, reboot and reattach the modem.

Edit: I see it's for XP the article. Just skip the SFC part, reregistering should work the same.
 
Thanks that seems to be sorted out now

I now get a Device Driver Not Installed successfully.

I have also noticed the following, when looking in on the device:

Windows encountered a problem installing the driver software for your device

Huawei Mobile Connect 3G Modem (E220)

Windows found driver software for your device but encountered an error while attempting to install it.

This device is not working properly because windows cannot load drivers for this device.

Does this make any sense?

What do I need to do to sort out this issue, as mentioned windows 7 sees my modem as a cd drive or mass storage device and not a modem:confused::confused::confused:
 
Your E220 modem's firmware needs to be updated. Login and look through the vodacom.co.za website for Software Downloads (lower right hand side of the screen. Download the corresponding firmware and update your device accordingly.
 
psivius said:
Your E220 modem's firmware needs to be updated. Login and look through the vodacom.co.za website for Software Downloads (lower right hand side of the screen. Download the corresponding firmware and update your device accordingly.
Click to expand...

AFAIK you can't update the E220 on Windows 7, you need XP?
 
My suggestion, is the only way of getting an E220 modem to work on WIN7, the firmware you metion will I think allow the E220 to run at 7.2 mb/s ... , posting from my BB so cannot check ...
 
Gents,

I have updated the firmware on the E220 modem and downloaded the suggested driver package.

The problem still remains - Windows 7 does not see the E220 as a modem.

It sees it as a CD drive and the modem part of the installation keeps failing. Everything else installs apart from the modem.

The dashboard opens, the blue light flashes it shows signal of 3G - but when I click connect nothing happens.

Dont know which way to go here
 
AutoX said:
Gents,

I have updated the firmware on the E220 modem and downloaded the suggested driver package.

The problem still remains - Windows 7 does not see the E220 as a modem.

It sees it as a CD drive and the modem part of the installation keeps failing. Everything else installs apart from the modem.

The dashboard opens, the blue light flashes it shows signal of 3G - but when I click connect nothing happens.

Dont know which way to go here
Click to expand...

Try to reattach the modem (disconnect and reconnect) go to Computer, right click the drive it picks up and click Eject. Open Device Manager and scan for hardware changes.
 
i have really tried everything suggested. it seems that i will have to take this into a vodashop to get it sorted - maybe the one in menlyn
 
Did you install the drivers from a clean install, that is, uninstalled VMC and any other 3G related software? Before installing the drivers that is ...

Did you do the firmware update on WIN XP ... ?
 
elf_lord_ZC5 said:
Did you install the drivers from a clean install, that is, uninstalled VMC and any other 3G related software? Before installing the drivers that is ...

Did you do the firmware update on WIN XP ... ?
Click to expand...

Here is what I have done thus far this morning ( as I have read somewhere online that vodacom shop guys cant fix this problem )

I have downloaded the new firmware for the e220 and put it on a flash drive

I have removed and uninstalled all vodafone software from the windows 7 pc. Thus it was clean.

I then copied the firm ware update via the flash drive to my main drive on my windows 7 pc - I removed the e220 sim card and updated the firmware to the modem.

When this was finished....I disconnected the e220 modem and inserted the sim again.

I then connected the modem to the windows 7 pc again - it picked it up once again as a mass storage and cd drive. when the pop up come on screen asking to run the vmc software I left it open.

I then opened device manager on the windows 7 pc and performed the following steps:

  • Connected the E220 – Windows 7 will only recognized a new USB Mass Storage Device and a CD drive.
  • Open the Device Manager
  • looked for “Universal Serial Bus controllers” Section and under that USB Mass Storage Device
  • I kept the device manager open, disconnected the E220 and saw the MAss Storage disappear. I connected it again and saw it reappear – so I knew which one to play with
  • Right clicked on the Mass Storage Device and selected “Update Driver Software”
  • Selected “Browse my Computer”
  • Selected the “Let me pick” section at the bottom
  • Unticked the “Show compatible devices” option
  • Selected “(Standard USB Host Controller)” in the Manufacturer Tab (near the top of the list)
  • Selected “USB Composite Device” in the Model Tab (on the right side)
  • Clicked on NEXT to finish installation


It then picked up the E220 as a modem and said the driver is intallled.

On the device manager window it showed that the modem still has a yellow exclamation mark. When I double clicked it it said that the device driver is not installed correctly.....however below that it said that windows required a restart for the changes to take effect.

Thus i restarted the pc and then installed the vmc software....

It then loaded the dashboard and showed 3G to which I then clicked connect ( which then remained greay and no connection happened)

I then reopened device manager in windows and the yellow exclamation mark was there again saying the drivers is not installed for the modem.

This is what I have done up to this point.

Any suggestions would be greatly appreciated guys.
 
AutoX said:
Gents,

I have updated the firmware on the E220 modem and downloaded the suggested driver package.

The problem still remains - Windows 7 does not see the E220 as a modem.

It sees it as a CD drive and the modem part of the installation keeps failing. Everything else installs apart from the modem.

The dashboard opens, the blue light flashes it shows signal of 3G - but when I click connect nothing happens.

Dont know which way to go here
Click to expand...

Had the same issues, downloaded VMC Connect from vodacom (full package) installed from there instead of the virtual cd. Works fine.
 
If it is the VMCLite 3 2 1 156 Standard, then I have already downloaded that and it does not work
 
AutoX said:
If it is the VMCLite 3 2 1 156 Standard, then I have already downloaded that and it does not work
Click to expand...

No.

The version I have is:

Vodacom Mobile Connect
Version 9.4.3.15494

(not VMC LITE)
 
Busy trying to go through the horrible new website and see if by some miracle of science I can actually find the driver link for you, if not pm me and I'll ftp it to a website for you.

Seems the drivers are no longer on there site.

I'll upload for you and pm you a link.
 
Last edited:
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