Install HL340 cable in Windows Vista(64 Bit)

Here is how I installed HL-340 cable drivers in my laptop(hpdv4 12cell batteries) which have Windows Vista (64 bit) Operating System.

At first I downloaded the latest driver for HL340 cable from its manufacturer. I found this link forum (link to foru ), while I was too searching for vista compatible drivers for HL340 cable.

Vista download link for HL-340 cable

I wondered if it would work in Vista (64 bit). Unfortunately, it didn’t work for me. Then what I did was installed it in XP. Luckily I have a computer running XP with me. It successfully installed in XP. After loitering for some moments I found that the setup file extracted the drivers to the root directory of my system i.e. C:\WCH.CN. I said to myself wow, I can try with this. I copied the folder to my flashdrive, then pasted it to my laptop’s desktop. Then fullpath to the driver location is: C:\Users\Alex\Desktop\CH341SER

Then I plugged the HL340 cable. Vista tried installing the drivers for cable; I selected to locate and install driver automatically, since it couldn’t find one, asked me to insert CD, I choosed to manually locate the driver location. Then pasted the fullpath to the drivers location i.e. C:\Users\Alex\Desktop\CH341SER.

After some moments, a dialog came up saying the driver is not digitally signed. I selected to continue anyway. Within a minute, it showed me a successful installed message.

To confirm, I checked it through HyperTerminal(Get HyperTerminal for Vista). Voila it worked.

Summary :

1.       Start the computer/laptop and Press F8 continuously and disable the digital driver signing.

2.       Disable the User Access Control (UAC)

a.       Control Panel -> User Accounts

b.      Select Turn User Account Control on or off

c.       Uncheck the tick mark, then hit OK.

d.      When asked, don’t restart.

e.      Close control panel, you have disabled the UAC.

By disabling UAC, you computer will not ask for you permission each time you write to system drive.

3.       Download drivers for HL340 cable (Download Link Here). I zipped the drivers which I downloaded from its manufacturer. Password for zip is HL340.

4.       Extract the zip file to the desktop or any another location you remember.

5.       Copy the full path of the driver’s location.

6.       Plug the HL340 usb to serial cable. When asked choose to install driver manually then paste the location, which you copied in step 4. Then click next.

7.       When asked select Continue Anyway.

8.       Within a minute you will get a message saying that device is installed and ready to use.

9.       Now you can check it with HyperTerminal (Get HyperTerminal for Vista). Password for zip is HT340.

10.   Make the proper settings and check with commands. I assume you know how to do it. I tested it with GPRS Modem which I am using for a project.