**Zhejiang Kyushu PTV-7098 Teardown: TTL Crack and Third-Party Software Installation Guide**
If you're looking to install third-party software on your Zhejiang Kyushu PTV-7098 set-top box, this guide will walk you through the process step by step. This method involves using a TTL (Transistor-Transistor Logic) serial connection to access the system and install custom applications.
**Preparation Tools:**
1. A Phillips screwdriver, a USB flash drive, and a computer.
2. Purchase an RS232-to-USB TTL cable (make sure it's the correct model). Also, get a DuPont cable, which is commonly used for connecting small electronic components. You can ask the seller for help with this.
3. Install the CH340G driver (file name: ch340g(1).zip, 3.39 MB).
4. Download PuTTY (file name: putty.zip, 280.1 KB), a popular terminal emulator.
5. Download the "Sofa Butler" and "Sofa Butler Desktop" apps from the provided links:
- Sofa Butler: [http://app.shafa.com/apk/shafazhuomian.html](http://app.shafa.com/apk/shafazhuomian.html)
- Sofa Butler Desktop: [http://] (note: the link may be incomplete, so double-check the source)
Rename them as "shafa1.apk" and "shafa2.apk", then copy them to the USB drive.
**Step-by-Step Instructions:**
1. Remove the back cover of the set-top box by unscrewing the four screws located at the bottom. Once removed, you'll have access to the internal components.
2. Connect the RS232-to-USB cable to the TTL interface on the device. The wiring should be as follows:
- Pin 2 = RX
- Pin 3 = TX
- Pin 5 = GND
Use the DuPont cables to connect these pins accordingly.
3. Plug the USB end of the cable into your computer. Make sure the driver is properly installed before proceeding.
4. After installing the CH340G driver, open Device Manager on your computer. Navigate to Ports (COM & LPT) and locate the COM port assigned to the TTL cable. Right-click on it, select "Properties," go to the "Port Settings" tab, and change the baud rate to **115200**.
5. Open PuTTY and configure it by entering the correct COM port number (as shown in Device Manager). Click "Open" to start the session.
6. Power on the set-top box **after** opening PuTTY. If you power it on first, the terminal might not display any output. Once the box is on, you should see some commands running in the PuTTY window.
7. Press Enter several times until you see a prompt like `root@Hi3798MV100: #`. This indicates that you are now in the system shell.
**Commands to Run:**
1. `start adbd` – Enables ADB (Android Debug Bridge) for further control.
2. `df` – Shows the available storage paths.
3. `cd /mnt/sda/sda1` – Navigates to the USB drive's mount point.
4. `ls` – Lists the contents of the USB drive to ensure the two APK files are present.
5. `cp shafa1.apk /data/app` – Installs the Sofa Butler app.
6. `cp shafa2.apk /data/app` – Installs the Sofa Butler Desktop app.
7. `am start com.shafa.tvlauncher` – Launches the Sofa Butler desktop.
Once everything is done, reassemble the set-top box and connect it to your TV. You should now see the Sofa Butler desktop interface. From there, you can navigate and use the new applications installed via the third-party method.
This process requires some technical knowledge, so make sure you understand each step before proceeding. Always back up important data if possible. Enjoy your enhanced set-top box experience!
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