adb push modem.zip /sdcard/
or instead of "/sdcard/" try /data/media/0
---------- Post added at 03:21 AM ---------- Previous post was at 02:51 AM ----------
From there, go into the folder it is installed to, look for the "tkmain.exe" file. Create a shortcut of that to your desktop. In this same folder, look for a folder that says "put files to push here" and put the modem and firmware file there. Now open the tkmain app from your desktop. Once opened, make sure your device serial shows up on the top. Look for the option that says "push" files. If my memory serves me well, that is option 13. When it asks about a "insecure boot" or whatever, type yes. As you proceed, you should see your modem file listed in the options, type it EXACTLY as it is named (e.g. modem.zip, all letters that are caps must be caps, lowercase must be lowercase, etc). When it asks where, it should show you examples of how you should type sdcard. Type it that way (e.g. /sdcard/ )
Wait for it to finish, repeat the same for the other file.
Check via TWRP install to see,if you find those files and flash them. Then reboot and your,good to go.