2. INSTALL_FAILED_UPDATE_INCOMPATIBLE or INSTALL_FAILED_VERSION_DOWNGRADE.
These Android package-manager errors come from a signature mismatch, or from installing an older version over a newer one. Uninstall the existing 10CRIC app completely, then install the current official APK. Classic symptom of a mirror build.
3. INSTALL_PARSE_FAILED or INSTALL_FAILED_INVALID_APK.
The file is corrupt or truncated. Delete it and download again over a stable connection, and do not resume an interrupted download.
4. APK file "not working".
Download strictly from the operator's own domain. Third-party APK repositories re-sign packages, which breaks future updates and may be blocked by Play Protect. Confirm your Android version is 5.0 or higher too.
5. Login errors.
Update to version 2.0.6 or newer. If the account is locked or suspended, contact 24/7 support and resolve it on the existing account. Creating a second one is a terms breach, and confiscated balances follow.
6. iOS "untrusted developer".
Go to Settings → General → VPN & Device Management, select the profile, tap Trust. If the profile is missing, delete the app, restart, disable VPN and reinstall, or fall back to the Safari Add to Home Screen web app.
7. App slow or freezing during live betting.
Close background apps to free RAM, since 1 GB free is the baseline, switch from mobile data to Wi-Fi, and clear the app cache. Reviewers have noted the client "tends to be a bit slow" on entry-level hardware during peak IPL traffic. That matches what most budget-phone users report.