Updating your switch via the Command Line Interface (CLI) is the most reliable method.
This image typically requires 32MB of Flash . Some older 16MB models may not have enough space to store the .bin file without deleting the previous image first. c3560ipservicesk9mz1502se11bin upd
Supports standard 3560, 3560G, and 3560V2 series switches. Upgrade Procedure (Step-by-Step) Updating your switch via the Command Line Interface
The Cisco IOS image is the final maintenance release for the classic Catalyst 3560 series switches, representing the pinnacle of stability and feature density for these legendary Layer 3 devices. This specific "IP Services" image provides full enterprise-class routing capabilities, such as OSPF, BGP, and advanced EIGRP, which are not available in the "IP Base" version. Key Features and Capabilities Supports standard 3560, 3560G, and 3560V2 series switches
Support for full dynamic routing protocols including OSPF, BGPv4, and Enhanced Interior Gateway Routing Protocol (EIGRP).
Comprehensive support for IP unicast and multicast routing, Policy-Based Routing (PBR), and fallback bridging.