Qfl Qualcomm Flash Loader V10 May 2026

| Feature | QFL v1.0 | QFL v2.x / Sahara | |---------|----------|--------------------| | Max packet size | 4 KB | 1 MB | | Transport | USB CDC | USB Bulk + Streams | | Security | None | SHA256 + RSA signatures | | Error recovery | Basic CRC | Retransmission + ACK sliding window | | Flash types | eMMC, NAND | UFS, eMMC, NAND, NOR |

While v10 is dominant today, newer Snapdragon 8 Gen 3 and beyond use Firehose v11 (sometimes called "Sahara v4/5") with: qfl qualcomm flash loader v10

Nevertheless, QFL v10 will remain relevant for hundreds of millions of devices (Snapdragon 660, 845, 855, 865, 888, 8 Gen 1) for years to come. | Feature | QFL v1

Samsung Exynos uses different protocols, but some Snapdragon Samsung devices (US variants) rely on QFL v10 for EDL flashing. Nevertheless, QFL v10 will remain relevant for hundreds