Once you've downloaded the firmware file, follow these steps to update your Archer C5 V4:

Many users in India reported 5GHz disconnection issues on early v4 firmware. If you are experiencing this, you need to update to the latest build, which often includes a "Change Agile config" to address connectivity issues. TP-Link Community If you cannot find the file, search the TP-Link Community forum for "Archer C5 v4 India"

Updating your from the official India download portal is a straightforward process if you follow the guidelines. The key takeaways are: