4. Effectiveness by Device Class
| Device Type | Qualcomm Samsung | FRP Success Rate | Notes |
|-------------|----------------|------------------|-------|
| Samsung A series (A10–A53) | Yes | High (90%+) | Requires correct loader file |
| Samsung S series (S9–S20 FE) | Yes | Medium-High | Newer models may need patched firehose |
| Samsung M/F series | Partial | Medium | Some require paid credits |
| Non-Samsung Qualcomm devices (Xiaomi, LG, Motorola) | Limited | Low | Tool primarily tuned for Samsung FRP |
Confirmed working models (examples):
- Backup EFS and take full partition dump via QSF.
- Boot device to EDL; confirm QDLoader COM connection.
- Load official Samsung firmware package compatible with that Qualcomm model.
- Flash system, boot, and persist partitions.
- Reboot and verify OS boots and IMEI intact; restore EFS if needed.
- Confirm proof of ownership and document consent.
- Backup device partitions (EFS, userdata).
- Use QSF to perform an authorized FRP reset procedure (some vendors supply signed files or procedures that comply with OEM policy).
- Reboot and verify setup proceeds without the previous Google account lock.
- Return device and have owner configure their account.
or similar utilities are used to bypass this lock when credentials are lost. How it Works qsf tool qualcomm samsung frp work