This specific maintenance release (M8) was part of the 15.7(3)M train, which reached End-of-Sale status on November 10, 2020 .
Router(config)# boot system flash:c2900-universalk9-mz.SPA.157-3.M8.bin Router(config)# end Router# write memory Router# reload i--- Download C2900-universalk9-mz.spa.157-3.m8.bin --
Follow these steps to obtain the file from Cisco’s official software repository: This specific maintenance release (M8) was part of the 15
Cisco IOS 15.7(3)M8 is a mature, stable maintenance release for the 2900 series. Key improvements over older code (e.g., 15.4 or 15.5) include: 15.4 or 15.5) include: