Check Android carrier lock status in seconds.
Download the IMEIFAST Android Diagnostic app and get a simple SAFE, CAUTION, LOCKED, or UNKNOWN result. No root. No modifications. Read-only analysis.
Download APK
Open this page on desktop and scan the QR with your Android phone, or tap the download button directly from the phone.
How it works
Install the APK
Download the IMEIFAST Android Diagnostic beta app and install it on the Android device you want to check.
Run diagnostic
Open the app and tap Start Diagnostic. The check is read-only and does not modify the phone.
Get a simple result
The app shows a clear SAFE, CAUTION, LOCKED, or UNKNOWN result so users can understand the phone faster.
Example results
Android Diagnostic is designed for normal users. Instead of showing technical signals, it translates the phone check into simple visual results.
No lock detected
The phone does not show carrier lock signals in the current diagnostic.
Review recommended
The phone may need an additional check before purchase or activation.
Carrier lock detected
The diagnostic found signs that the phone may be restricted to a carrier.
Not enough data
The phone did not expose enough supported information for a final result.
Current Android support
IMEIFAST Android Diagnostic is currently in beta. Samsung support is the most advanced. Motorola, Verizon, and other Android devices are being improved through real device testing.
Need a deeper phone check?
Android Diagnostic helps detect lock signals from the phone. For a stronger buying decision, combine it with an IMEI Check to review blacklist status, carrier information, device details, and other available records.
Important: Read-only diagnostic
No. The app is designed to run without root access.
No. It only checks status. It does not unlock, bypass, or change the phone.
No. The diagnostic is read-only and designed for status analysis.
Yes. Samsung is currently the most validated Android brand in this beta.