I recently had an issue where I was unable to download application updates on my Android phone.

Error Message:

• Error: Update for “<application>” could not be downloaded due to an error. (495)

Phone details:

• HTC Desire S
• Android 2.3.5
• HTC Sense 3.0

After much searching I eventually used these two different options to resolve my issues:

Option 1 – Clear phone download manager cache:

1. Settings > applications > all applications > Download manager > Clear cache
2. Settings > applications > all applications > Google Play > Clear cache
3. Restart phone
4. Attempt application download again.

This resolved some of my update issues (3 of 6 outstanding updates downloaded successfully over wireless)

Option 2 – Wireless network is blocking a required port for the download:

1. Disable phones wireless connection
2. Switch on your 2G/3G connection
3. Attempt application download again.

This resolved the balance of my download issues and once all the current updates were successfully downloaded and installed the error with wireless downloads has corrected itself (future updates downloaded successfully over wireless).

Hope this helps if you have similar issues on your android device.