Support Center & FAQ
Get quick answers, understand Android permissions, and find solutions for ROC applications.
Smart PDF – Frequently Asked Questions
Where are my converted PDF files saved? +
Converted PDF files are saved directly inside your device standard "Documents" or "Download" folder under a dedicated "SmartPDF" directory. You can access them at any time using your preferred file manager.
Does Smart PDF require an internet connection? +
No. All viewing, converting, and merging operations are executed 100% locally on your smartphone processor without requiring an active internet connection or account login.
Set 5G Only – Troubleshooting Guide
Why can I not make phone calls when locked to "NR Only"? +
When locked strictly to "NR Only" (5G Standalone), voice calls require your mobile carrier to support and provision VoNR (Voice over New Radio). If your carrier only supports VoLTE (Voice over LTE), select "NR/LTE" preferred mode instead to keep incoming and outgoing voice calls functional while still enjoying fast 5G data.
Why does the app show an error on certain phone brands? +
Some device manufacturers or carrier-locked firmware builds deliberately block standard Android radio configuration intents. In these cases, the phone operating system restricts access for security reasons.
Still Need Help?
If you encountered a bug, crash, or unexpected behavior, please send us a report including your phone model, Android version, and a brief description of the issue.
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