Buying a new phone leaves you with an older one that is pretty much useless unless you trade it in.No one really needs a second phone unless it is for work.Once you've moved your contacts and photos over, it's easy to forget the old phone is still useful when repurposed.
It won't lose any of the features that make it such a good mini computer, and you should take advantage of that.Your old phone is actually a great portable server Why your old phone works better than a flash drive People tend to upgrade their phones and toss the old ones aside even though they still work fine.The processor, the Wi-Fi, the storage controller, and pretty much the rest of it generally still work well as a mini computer.
Instead of letting it sit unused, you can turn it into a little networked file server.Normally, if you want to move files around, you'd use a USB stick.But a flash drive is dumb and can't do anything by itself.
It needs a whole computer running just to share files over the network, which wastes power.An old phone is basically a self-contained wireless storage device.What makes phones really good for this is that they already have everything built in.
A screen for setup, networking, and a battery.That battery is actually a big deal.It works like a built-in UPS, so if your power cuts out, the phone keeps running instead of instantly dying and potentially corrupting your files.
That's a better setup than most people have on their actual NAS machines.You can usually throw in a huge microSD card for cheap.To actually do it, you don't need to modify anything or root the phone.
There are apps that run FTP or WebDAV servers.That basically turns the phone into a tiny NAS that any computer or laptop on your Wi-Fi can see and access through its regular file manager.You won't need any cables or adapters.
This is an easy way to just drag and drop over the network.Of course, you can just keep the phone the same way, because it would work fine if it's already connected to your PC through Phone Link, but it's smart to have a proper way to work with it.You can get the server running pretty fast How to get the server running on your phone Close So you want to turn an old phone into a little home server.
The first thing you need is an app that actually shares the phone's storage over your network.On Android, the best free option is Primitive FTPd, which you will have to get from F-Droid, not the Play Store.Servers Ultimate works too if you don't want to sideload apps, or MiXplorer has a built-in server if you already use that.
For iPhones, Readdle's Documents has a WebDAV server, or PocketServer, which is very popular.Once the app is installed, connect the phone to your Wi-Fi.You can also log into your router and give the phone a static IP, so its address stops changing every time the DHCP lease expires.
During setup, turn off anonymous login.At minimum, you should always set a username and password.If you want real security, use SSH keys instead.
Generate a key pair on your main computer, copy the public key into the server app's authorized keys file, like the .ssh/authorized_keys path in Primitive FTPd, and then delete the password login option entirely so only your key works.Also on Android 11 or newer, you have to manually grant the app All Files Access in system settings.If you're using an SD card, toggle the Storage Access Framework option in the app and pick the card's root directory so it has write access.
Storage is cheap if you do it right.Keep the big fast cards for your main devices and hand down the old 32 to 128 GB cards to the server phone.Related You don’t need an SD card to add physical storage to your phone Do you have an SD card slot? Posts 32 By Joe Fedewa You have to deal with a few trade-offs The main problems you run into with a phone server So you want to turn an old phone into a little server.
It works, but you have to accept some pretty annoying trade-offs right away.The biggest one is just the physical mess.A USB stick is tiny, fits on your keychain, needs no power, and just works when you plug it in.
A phone server is bulky and needs a whole pile of stuff just to stay alive.You're dealing with power adapters, USB cables, and sometimes even a case.I've seen a few people buy one just for this.
It also needs attention often.You have to mess with software environments, local IP addresses, and network protocols just to keep the phone reachable.Then there's the battery problem, which is the worst part.
Phones are not designed to be plugged in 24/7.If you leave one permanently on a charger, the battery sits at 100 percent and a high voltage the whole time.Eventually, it won't even hold a charge for long unless plugged in, and that could also make the battery swell.
Network speed is another limitation.A USB drive plugged into a port is going to give you very fast direct read speeds.A phone server uses Wi-Fi, and Wi-Fi is never going to match that.
The phone's processor and any encryption you add also make things a little slower.Also, there's no RAID or redundancy on a phone.If the microSD card dies, your data is just gone.
So it's not a perfect storage solution.It's not going to replace a fast flash drive or a real multi-bay NAS.It's still a great low-power way to get a mini-NAS you can set up exactly how you want.
It's better than leaving your phone to collect dust This is going to feel pretty different from what you're used to.If you need fast local transfer speeds, a USB drive plugged directly into a port will beat a phone server over Wi-Fi easily.Still, if you've got an old phone that you're not using, there's nothing to lose in turning it into a mini NAS.
MiXplorer Price $7 .99 App Publisher Hootan Parsa MiXplorer is a fast and ad-free file manager designed for Androids.$7.99 at Google Expand Collapse
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