Even with an , things go wrong. Here is the legacy-specific debugging guide.
Older versions of the tool are often required for flashing legacy Qualcomm devices or resolving compatibility issues with newer software. QFIL is typically bundled as a standalone tool or as part of the broader Qualcomm Product Support Tools (QPST) suite. Popular Old Versions of QFIL
ERROR: function: is_dload_supported: script requires version 2 but firehose supports version 1