Zsun SD111 Wireless USB Flash Drive Review

Zsun SD111, SD112 and SD113 are Wi-Fi / USB flash drives with respectively 8GB, 16 GB and 32GB storage. GearBest sent me the 8GB version (SD111) for review, as it could be an interesting platform to hack. I’ve take picture of the device, take it apart to check the board, review quickly the standard features with Android and Ubuntu, and try to access the board from the network.

Zsun SD111 Unboxing

I received the device in the following package.

ZSun_Package
The flash drive comes with a micro USB to USB cable for charging and accessing the device from a computer, and a user’s manual in Chinese.
ZSun_SD111
You’ll probably prefer using a soft copy user manual in English

Zsun SD111 Board and Battery

To open the stick, insert a sharp and thin object in the hole for the neck strap, and push upwards to lift the top cover a little, and finish popping up the cover with another sharp object. I used some tools from a dissasemble toolset I recently bought.

Top of ZSun SD111 Board (Click to Enlarge)
Top of ZSun SD111 Board (Click to Enlarge)

The Wi-Fi SoC is Atheros AR9331, AXP192 is used for charging, and on the top of the Qualcomm SoC you’ll also find UART pins probably allowing access to the serial console (Not tried yet). There’s also SMSC USB2240 USB bridge to handle the USB flash drive part of the device.

ZSun_SD111_Board_Bottom
Bottom of ZSun SD111 Board (Click to Enlarge)

On the back you’ve got the flash and RAM, with the board being named SD111_HW_V2_0.

700 mAh Battery
700 mAh Battery

The battery is apparently 700 mAh as claimed in the specifications.

In my first Zsun SD111 blog post, the specifications were not fully complete, so here’s an update:

  • SoC – Qualcomm Atheros AR9331 Wi-Fi SoC @ 400 MHz
  • System Memory – 32MB DDR SDRAM (Winbond W9425G6JH-5)
  • Storage – 8 MB SPI flash (Winbond 25Q64FS1G) for firmware, and 8 GB eMMC (Toshiba THGBM2G6D2FBAI9 ?) for storage
  • Wi-Fi – 802.11 b/g/n up to 150Mbps with open, WEP, and WPA/WPA2 security.
  • USB – micro USB 2.0 port to transfer files and charge the battery
  • Battery – 700 mAh Li-Po battery. Good for 3h30 of continuous use. Includes automatic power off after 5 minutes of inactivity.
  • Misc – Power button, abd LED
  • Dimensions – 8 x 3 x 1.2 cm
  • Weight – About 30 grams

Zsun SD111 Mini Review

I’ve put the device back together, to try it out. First I connected it to my Ubuntu PC with the provided USB cable, and charging LED went on, but the drive was not recognized as a standard USB flash drive, and nothing was shown in the kernel log. That’s because it needs to be switched the USB storage mode in the app as we’ll see later.

First you need to press the power button on the top of the stick for two seconds to turn it on, and install Apple Extender (previously known as SuperDisk) app in Android or iOS.
Zsun_Google_Play_Wi-Fi_ESSID
Then you can either connect to zsun-sdXXYYZZAA ESSID via the Android setting, or simply start the app and select the device ESSID. From there you’ll then be able to access the files and drive on the flash drive, and copy files and directory from/to your phone and it works quite well.
Zsun_SD111_Apple_Extender_App
When you select files or folders, icons to share, copy, cut, and delete appear at the top. Further options are available with the setting button, such as changing the ESSID, checking the firmware (via Device state menu), backup the data and so on. You may to select “Connect network” if you rely on your Wi-Fi router for internet connectivity.

If you want to use the device as a standard USB flash drive, you need to slide the blue button on the bottom right in order to enter “PC” mode.

Zsun_SD111_USB_mode

In theory, It’s also possible to access the flash drive with Wi-Fi from a PC, but you need to install ZSunCloud.exe program (Windows only) from http://www.zsuncloud.com/. Unfortunately, I;’ve been unable to find the program, maybe because I can only read a few Chinese characters… [Update: ZSunCloud.exe is actually inside the stick, as we’ll see below]

TCP Services Opened on Zsun SD111

I’ve also checked whether it could be possible to access the device from the network, So I enabled Wi-Fi on my computer, and connected to zsun-sdXXYYZZAA access point.

Let’s find the subnet used:


and scan for open TCP ports:


So Telnet is open, but unfortunately I could not find the login credential, trying the usual root/root or admin/admin. I also tried to load the webpage in my web browser with http://10.168.168.1, but I got was an empty page with the title “Success”. Looking into the code it will provide a download link if it detects Android, iOS mobile device or a Windows computer, and this is the link to use to download the windows application: http://10.168.168.1/cgi-bin/Submit.cgi?name=windows.

Trying http://10.168.168.1 generates an “Access Error: Site or Page Not Found” page.

So unless we can find the right username / password for telnet, it seems impossible to access the device without soldering the UART pins, and I may try to do just that this week-end if some of you are interested.

GearBest, which kindly provided the sample for the review, sells Zsun SD111 (8GB) for $22.74, but if you want more storage can purchase 16 or 32GB versions on DealExtremeAmazonGeekBuying, and others.

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22 Comments
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bjarne
bjarne
5 years ago

Hmm.. would be interesting to see the results if you scan the device. I believe you only scanned your own Ubuntu computer first time..

guest
guest
5 years ago

You scan you own computer, not zsun stick

Paul
Paul
5 years ago

Excellent, thanks for review! I suspected ad materials were a bit cunning to call it to have “Qualcomm SoC”, glad to know it’s ol’ good Atheros AR9331 actually! The rest of specs are good too, but I find “There’s also SMSC USB2240 USB bridge to handle the USB flash drive part of the device.” a bit cryptic. What do you mean – there’s real eMMC connected over QSPI bus, right? The lack of 22/23 ports open is actually good, as it means it’s not the case that sole purpose of this device is to compromise user’s data. And usage of… Read more »

Paul
Paul
5 years ago

Oh, and looking at the official site, they have models with up to 128Gb now. But they lost English version of their site ;-).

Paul
Paul
5 years ago

> There’s also SMSC USB2240 USB bridge to handle the USB flash drive part of the device.

Ah, I slowly seem to be getting that too. So, it seems they use dedicated USB-flash controller to handle “USB” mode. That’s also apaprently the reason why you need to switch WiFi vs USB modes. Still, dunno why. It’s impossible for AR9331 not to have USB device interface support (right?), so is that the case that USB2240 is known high-performance controller (and/or maybe AR9331 has only 1.1 device support? Need to read datasheet.)

Paul
Paul
5 years ago

@Jean-Luc Aufranc (CNXSoft) : Thanks for updates. So, can we go a bit deeper into “Connect network” feature: you select “Connect network” within Zsun client app, what happens next exactly? Does “it will list the ESSID in your environment” looks like native Android WiFi connection dialog (together with following password dialog)? Or rather, it’s all inside Zsun client app, and you input WPA password into it (which thus can compromise it)? In either way, that means that Android device would be connected to 2 WiFi APs at the same time. Fairly speaking, I never heard about tat being possible at… Read more »

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[…] days ago, I reviewed Zsun SD111 a 8GB Wi-Fi flash drive based on Atheros AR9331, and I discovered the telnet port was open, but I […]

Krishnaraj
Krishnaraj
5 years ago

Just got this device and really thanks for this excellent post ( the only English version I could find 🙂 ). I am not able to see any files in the app and its just keeps ‘loading’. Also, the firmware downloaded but didn’t update. Anyone faced similar issues?

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[…] be used with a NAS, a cheap board with a USB harddrive, or even USB Wireless flash drive such a Zsun SD111 (which is now hackable even without serial debug board, as the default root password has just been […]

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[…] previously covered Zsun SD11x USB flash drives with 8 to 128 GB internal flash, a battery, and Wi-Fi connectivity in order to […]

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[…] little while ago, I purchased Zsun SD111 W-Fi USB flash drive, and after several tentatives, I finally found a way to access the […]

onebir
onebir
4 years ago

Gearbest also has this similar product:
http://www.gearbest.com/usb-flash-drives/pp_112476.html

lxbuzz
lxbuzz
4 years ago

Zsun software fails to work with my zsun stick (downloaded both from zsoundcloud.com and appstore)
Android L – Sony Xperia Z2

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[…] wireless storage options on the market that allows you to add storage to your smartphone, such as WiFi USB flash drives, wireless SD card readers, or WiFi HDD enclosures. These inexpensive solutions are are quite […]

angelito
angelito
4 years ago

let me tell you:

telnet:
port 11880
root
zsun1188

samba:
Admin
5up

Colin
Colin
4 years ago

Iv had mine about two years never been able to use it the app I have appears to all in Chinese. Is there a video to take you through it step by step.
Regards Colin

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