cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1709
Views
5
Helpful
8
Replies

IOS downgrade issue

CSCO11638397
Beginner
Beginner

Hi,

Please explain me while I try to downgrade ios ver "c880data-universalk9-mz.151-4.M4.bin"  to "c880data-universalk9-mz.150-1.M.bin" giving error msg wrong ios image and going to rommon mode. is that possible to downgrade cisco 887 router?

8 Replies 8

CSCO11638397
Beginner
Beginner

any idea?

Peter Paluch
Hall of Fame Cisco Employee Hall of Fame Cisco Employee
Hall of Fame Cisco Employee

Mohamed,

I cannot say this with 100% certainty but usually, Cisco devices allow to downgrade their IOS. Please post the complete transcript of the failed boot attempt. Also add the output of the dir flash: command from the ROMMON. Thanks!

Best regards,

Peter

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

Post the entire boot up sequence. The IOS you want to run could be corrupted.

Sent from Cisco Technical Support iPad App

aotholland
Beginner
Beginner