Xperia ion update issue

[Billy1]

Hi

My experia ion LT28at is not updating. I get the following details: Sony Update Engine failure (error 1601)

Also, Internet connection is good, data cable is good, usb port is good, pc companion and update service allowed trough firewall.

Please Help

[Cot88]

Most likely is a connectivity problem or PC Companion / SUS are not correctly allowed by firewall

- Check the unused RAM of your PC/laptop

- Disable at all antivirus, antispyware and firewall

- Update Java virtual machine

- Try if you can another internet connection and/or another PC/Laptop