# Upgrade
## What should we do if it prompts you "failed to upgrade" or "upload failure"?
1. Please double check whether the network connection is normal;
2. Please select the device(s), click "Cancel" and then click "Upgrade" again;
## What should we do if it's failed to detect the encoder via Device Manager after upgrading?
1. Please double confirm whether the encoder can be powered on and running;
2. Please manually add one more IP for your PC under the same network segment 1 like 192.168.**1**.XXX, or else it might cause upgrade failure.
3. Please follow below steps to upgrade the firmware again if 1st is confirmed:
* Run Device Manager if you already installed the latest version;
* Go to Configuration->Change HTTP Port from 80 to **6868**;
* Click Manual Add->Select the device you just manually added;
* Browse the Latest & correct firmware->Enter User Name and Password->Click "Upgrade"
* The device will be reboot and you can try to search the device later;
* If failed to upgrade, please try to connect it to your PC with ethernet cable and try again;
{% hint style="danger" %}
WARNING: Please DO NOT CHANGE the default IP 192.168.1.64 on the device manager.
{% endhint %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.exvist.com/encoder-pro/resources/faq/upgrade.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.