Networking-Notes

 Download the Appropriate image from cisco. Login to ME controller. Go to Management -> Software Update Choose TFTP as the below screenshot. At this point do not forget to extract the downloaded image and point the TFTP directory to the extracted folder containing the image.    ☝☝☝ SOS step as i already forgot that once and i spent time to found/remember it  Proceed with save and Update. AP will reboot and come back after around 5 min. (Hopefully Upgraded ) I found some difficulties to do it work with HTTP. If you have the way to do it you are very welcome to inform me also.

First go to rommon to install the  .lfbff  file (use tftp) Then perform the initial setup to do the preparation for .pkg file. On the link referenced below you can see models which interface is the appropriate.   Install the .pkg file (You cant use tftp. I used ftp) !! Download filezilla server and create the below user. system install  ftp://user:pass@10.10.10.100/asasfr-sys-5.3.1-152.pkg   You need to be sure what you are going to achieve before start reading the below excellent guide. You can choose what you want at the beginning.  https://www.cisco.com/c/en/us/td/docs/security/firepower/quick_start/reimage/asa-ftd-reimage.html#task_lzh_2zn_rgb