Warning: Updating an ECU firmware has risks. A power failure during the 20-minute flash can brick your ECU. Perform this only with a stable power supply (battery charger connected).
⚠️ typically requires battery voltage >12.5V and stable internet. honda ecu 3.5.5.2
However, the most frequent match for “3.5.5.2” in Honda circles is the used with the official Honda Denso control units (e.g., for Accord, Civic, CR-V, Odyssey 2013–2017). Warning: Updating an ECU firmware has risks
Open the software → Vehicle Info → ECU Part Number / Software Version. If it shows 3.5.5.2 under “Software Version” in HDS, proceed below. 12.5V and stable internet. However