-runtime Trace Mode- ^hot^: Smartphone Flash Tool

After an OTA failure, a Qualcomm device is stuck in EDL. QFIL reports Sahara protocol failure . Runtime trace mode captures:

import re with open('runtime_trace.log', 'r') as f: for line in f: if 'ERROR' in line and 'partition' in line: partition = re.search(r'partition \'(\w+)\'', line).group(1) print(f"Auto-fix: Skipping partition due to write protection") smartphone flash tool -runtime trace mode-

High-volume trace data can overwhelm USB 2.0 buffers, causing the flash tool to freeze. Solution: After an OTA failure, a Qualcomm device is stuck in EDL

Without tracing, you only see the tool’s filtered error. With tracing, you see the reason the tool decided that error existed. After an OTA failure

Identified that the OEM’s flash tool was not updating the corresponding hash fuse, causing authentication failure.