How can you directly access files on the NAS on an Android phone? I paired three channels for my mom's Huawei phone, but in the end, only one was the permanent one

my mom's phone album is full again. A 128GB machine has just over 800MB left, and WeChat can't even send videos. I'm familiar with moving photos into the NAS; automatic backup was already set up, but after moving it, a new problem arose: she wanted to browse through it herself. I tried to get my wife's iPhone through a different route, using WebDAV to connect iOS file App, and it worked smoothly for a year. When it came to my mom's Huawei, the approach was completely different. This article will record the three paths I matched her with, and the last one I left.
first break through the first layer of paper: this doesn't require a data cable. When your phone connects to your home WiFi, the NAS and your device are on the same local network, which means you're living in the same community—visiting people doesn't need to leave the main house. The only thing truly separated was one thing: language. NAS speaks in a dialect called SMB, which Windows naturally understands, so you can enter it by typing a backslash on your computer. Android phones actually understand this too, but the system's built-in "file manager" hides this translation feature deeply, and each phone has different trims—I've tested three Android devices, and two of the built-in managers don't have any network storage ports at all.
the essence of the setup is to find a tool for your phone that can say SMB. Once you understand this, three paths are easy to choose: the official app is "full translation plus guide," third-party file managers are "pure translation," and mobile browsers are "just going to people's doorsteps to look." Each has its own use.
the first way: Feiniu App, the official one is worry-free but feels like an app store
my unit is an N100 mini head-up unit with Feiniu installed. For the official app, search for 'Feiniu Private Cloud' in the app store, or go to Feiniu's official website to download the APK, and my mom's Huawei App Store will find it directly.
login comes in two types. When your phone is connected to home WiFi, the app will automatically detect the device on the local network. With a tap, you enter your NAS account and password to enter—this is a local direct connection. If you want to use it while you're away, you need to bind your Feiniu account to the FN ID:NAS backend. The app logs into the same account without entering an IP or port, and the official provider provides a relay. My mom's need is to browse photos at home, and the local direct connection is enough. I also logged in to her FN ID, so it's useful when going out to see her grandson's photos.
experience: it works for viewing files, transferring files, and flipping through albums. The interface has been optimized for phones, with large fonts that my mom can see clearly. The drawback is obvious—it's an "application," not a "file system." You can only watch what it shows you inside it. If you want to send videos directly to other players or store the NAS as a cost for other apps to read and write, it won't connect. Transferring larger files and progress bars are not as intuitive as professional tools.
second option: install SMB in the CX file manager, and the NAS becomes a storage piece in your phone
This path was the last thing I left for my mom. The tool is called CX File Manager, it's free, ad-free, supports SMB 3.1.1, and can run on older Android devices too.
three steps of matching. After installing and opening it, switch to the "Network" section at the bottom, click "New Location," and select SMB under "Remote Storage" (it also has a "Local Network" section that automatically scans, so if you can scan, you don't need to fill it out manually). Then fill in three things: for the host, enter the NAS IP—my home is 192.168.31.10; enter the username and password for the NAS account; once confirmed, the NAS's shared folder will appear as a storage volume under the "network" section, standing on equal footing with the phone's own "internal storage."
The difference in
experience is here: after attaching it, the NAS is not "content from an app" but "an extra drive" on the phone. My mom opens it in File Manager, flips through photos, plays videos, and copies and pastes. The operation follows the same logic as flipping through phone albums, so she doesn't have to learn anything new. Play videos directly by adjusting the system player; dragging a 1080P MP4 to the progress bar prevents lag; Her Huawei is getting old, and playing 4K causes audio and video sync issues. That's a phone decoding issue, not the NAS.
also has a freebie benefit: screen casting. If you want to watch movies on your NAS on TV, the proper way is to use the Jellyfin , but when you want to casually send a photo or video, selecting files in CX to share to the screen is much faster than turning on a computer.
Third Way: Open the web backend in your mobile browser, dedicated to emergency
strictly speaking, this isn't an independent path, but when it comes to actual use, it's a lifesaver. Just enter the NAS IP in the address bar of your mobile browser, enter the web backend, and Feiniu's file management and Synology's File Station are both web versions. Once you log in with your account, you can still view and download files.
when to use it? When someone comes to your home and wants to copy a file to leave, you can't just put your account and password on their phone; Or you go out by yourself, with nothing installed on your phone, just borrow a browser and get to work. The downside is that the upload and download interaction is rough, sending a batch of photos can be so painful it takes to click your hands, and occasionally there are minor browser compatibility issues. Serving as a backup is enough; Serving as the main force, suffering punishment.
people are outside, which of the three roads is still alive
this is the easiest to get confused, so I'll do the math clearly. At home, the phone and NAS are in the same neighborhood, all three channels are connected, and both are at full WiFi speeds. Hundreds of megabytes of files can be delivered in seconds. Once outside, the community access control (router) won't let you through:
Feiniu app uses the FN ID and is still alive. The official server provides relay, so you can flip through photos and transfer small files without issues, but speed drops during peak periods. The official side also said the service might adjust its pricing policy in the future, and it's still free to use today. For the SMB entry, the 192.168.31.10 you entered is the internal network address number. Once you leave the community, it's just a worthless piece of paper. The same applies when opening the browser in the background. If you want SMB and web backends to be revived outside, you have to take a tougher path: either provide VPN home , or use public IPs plus IPv6—that's another topic.
my mom has only one need outside: to look through photos. The app is sufficient. If one day she has to move large files outside, I can use a VPN then.
three pitfalls, I went through them all when I was combining
pitfall 1: Don't copy the machine's name from your IP; if you do, you still need to pin down the IP. CX 'local network' scans sometimes fail to scan the NAS; this is an issue with mDNS broadcasting. another article specifically discussed : if it can't be scanned, just manually fill in the IP and don't go all out. What's worse is the IP drift: my printer suffered this loss. When DHCP was reassigned and the address changed, the computer was still tapping the old address. So the first thing I did after setting it up was to go to the router's backend and bind the NAS IP to a static —once and for all. Otherwise, if one day the router restarts and my mom's phone can't connect, she'll think the NAS is broken.
Pitfall 2: Don't set the admin password on your everyday phone. my mom's phone is always with her, but she loses it and borrows photos to look at. Following the old rules of the family account , I assigned her a dedicated account with only album directory access and only read permissions. No one gave her admin password. She couldn't delete things by mistake, and others couldn't find their work directory even if they found their phones.
Pitfall 3: If your phone connects to the wrong network, it's all for nothing. I have a dedicated dedicated IoT network for smart devices at home. One time, when my mom's phone connected to that network, the NAS in the CX disappeared instantly. It's not that they're broken; it's that guest networks, IoT private networks, and other isolated segments are not connected to the mainnet, so devices can't see each other. The phone reconnected to the main WiFi and immediately came back. When you don't get the right number, first check which network your phone is connected to—it can save you half an hour.
if all these are queued but still cannot connect, or you get an error like "Network path not found," that's a different troubleshooting system. When I encountered this on my computer I wrote a from Windows 11 to Synology, the idea is similar, and you can just follow it on your phone.
Ending: Three lines of matching numbers, copy as needed
| your situation | which | reason should you choose |
| just want to browse photos or check | official App | FN when going out. The ID is usable when going out, the interface is the most convenient |
| and you want to treat the NAS as a single drive for your phone to use regularly | CX File Manager + SMB | is free and ad-free, operating just like local files |
| temporarily borrowing someone else's phone to copy a file | opening a web page in the backend | and installing it without any hassle. After using it, they left |
order, I suggest following: first bind the static IP to the NAS on the router, then install CX and attach SMB to connect the main route, then install the official app, log in to FN ID, and add the "Go Out" section, and record the browser entry in your notes as a backup. After finishing all three in half an hour, my mom is now more skilled at flipping through photos on her NAS than at her own phone's album—after all, there are over 40,000 of them inside, and her own phone's 128GB can't fit them all.
