⚠️ If the orange alarm light stays solid or continues flashing, the printer failed to enter Service Mode. Do not attempt to run the tool, as doing so can permanently lock or corrupt your printer's mainboard logic chip. How to Install and Use Canon Service Tool ST 5510 Step 1: Download and Extraction
: Many sites offering "free downloads" for ST5510 provide fake or malware-infected files. canon+service+tool+st+5510+free+download+install
Before extracting or opening any downloaded file: ⚠️ If the orange alarm light stays solid