Hey there! I see you’re having trouble installing Marvel Contest of Champions after downloading it on your Android 10 device using WebKit. Let’s work through this together.

First, can you tell me a bit more about what happens when you try to install? For example, do you see any error messages, or does the installation just not proceed? Are you installing from the Google Play Store or an APK file?

Meanwhile, here are some straightforward steps to try that often resolve such installation issues:

1. Clear Google Play Store Cache and Data
Go to Settings > Apps > Google Play Store > Storage, then tap Clear Cache and Clear Data. This will refresh the Play Store’s information.

2. Clear Google Play Services Cache and Data
Similarly, head to Settings > Apps > Google Play Services > Storage and clear cache and data.

3. Uninstall Play Store Updates
Sometimes, a corrupted Play Store update causes installation issues. In the Google Play Store app info screen, tap on the three dots (or menu) at the top and choose “Uninstall updates,” then try again.

4. Remove and Re-add Your Google Account
Go to Settings > Accounts > Google, remove your Google account, then add it back. This can reset account sync issues.

5. Check Storage Space
Make sure your device has enough free storage. A lack of space can stop installation from completing.

6. Restart Your Device
A simple restart can clear up temporary glitches.

If after these steps you still see issues, it could be related to device compatibility or region restrictions, but that’s less common. Also, if you installed the app manually (not from Google Play), the package might be corrupted or incompatible.

Could you try these out and let me know where you get stuck or if any specific error shows up? That’ll help me guide you better.

Also, if you prefer, I can share links to some official threads addressing similar install problems for more detailed troubleshooting1 2.

Looking forward to your reply!