Download Fix Hydra Qualcomm Tool 103
If you are on Android 11+ with ARB (Anti-Rollback) enabled, error 103 appears even with a patched tool. You need to short the test points to force an older bootloader version.
Believe it or not, USB 3.0 often corrupts the authentication packets. Connect your phone via a USB 2.0 hub. download fix hydra qualcomm tool 103
Before you proceed with the download, ensure your PC meets the following minimum requirements: If you are on Android 11+ with ARB