Send a specific configuration file (called a programmer or firehose file) to the chip.
| 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 |
Using the Qualcomm Sahara or Firehose protocols, the tool sends a "programmer" file (an MBN or ELF file) to the device’s RAM. This programmer acts as a temporary bridge, granting the tool permission to read and write to the device’s internal flash storage.
While it is frequently shared in developer forums and tech blogs, here is a breakdown of what you should know before using it: Review Summary Target Devices : It specifically targets Samsung models powered by Qualcomm chipsets qsf tool qualcomm samsung frp work
Power off the device. Hold both Volume keys while plugging in the USB cable, or use hardware test points on the phone's motherboard.
Because EDL works at the chipset level, it can bypass virtually any Android‑level restriction. As long as you can force the device into EDL mode (or the tool can do it automatically), you can remove the FRP lock regardless of the Android version or security patch level.
The effectiveness of the QSF Tool depends heavily on the chipset inside your smartphone. 1. Qualcomm Snapdragon Devices Send a specific configuration file (called a programmer
: Knox blocks unauthorized partition modification.
If you decide to use the QSF tool:
Qualcomm processors have a specific low-level diagnostic state known as or Qualcomm HS-USB QDLoader 9008. Tools targeting Qualcomm Samsung devices attempt to: Force the device into EDL mode. While it is frequently shared in developer forums
Does QSF Tool Work on Qualcomm Samsung Devices? (2026 Status)
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