I have tested several Android apps and none of them seem to be able to do what I want.
How do I access admin shares such as \\host\c$ from Android?
Note that admin share access is enabled on the host and I can in fact access it from another Windows machine. Last time I checked it even works from Debian Linux. Now, Android either has some deeply rooted issues with this or it lacks the proper tools/apps.
Try ES File Explorer. It can access user shared folders + administrative shares.
\\host\something instead you have to type host\something like that. It has some problems with adding or connecting to admin shares, like for instance I added host\c$ and it was OK, and I could tap to open. But for host\l$ on the same machine it kept saying error, cannot find the server and it won't add it when I tap OK button. When I go back to "server" field and type it in again, and then tap OK, it works then. Looks like a bug.
host\c$ I will get host\c $ with an extra space between drive letter and dollar character. So I have to go back and remove that whitespace. Then it works. This is on a Galaxy S4 Plus. Other phones may not be affected.