Mobile phones are usually sold with DATA cables that allow you to connect your device to a computer and exchange information. However, they are not suitable for removing the firmware to change the software filling. For this, a stitching cord is used, which you can make yourself at home.
Instructions
Step 1
Take any USB or DATA cable that has a box in the middle with a board and a microcircuit. Download the Prolific Technology PL-2302 Driver from the Internet. In order to determine that this cable is exactly the one we need, plug the empty cable into the USB connector of the computer. If a window popped up with a search for an unknown device, then point it to the path to the downloaded driver. If it is accepted by the system, then everything is selected correctly.
Step 2
Cut off the plug of the selected cable. You will see four colored wires: black (GND), red (+5 V), green and white Rx and Tx. We only need Rx, Tx and GND. Using a tester, check which wire corresponds to + 5V and cut it off so that it does not interfere. Solder three crocodile clips to the remaining wires. The result is a universal firmware cord that can be used with any phone.
Step 3
Take your phone's native plug. Solder short wires to all contacts and bring them in order to the die. Insert the plug with the die into the phone. Using a tester, locate the Rx, Tx and GND pins in the telephone connector socket. To do this, check the resistance values with the battery inserted and removed.
Step 4
Connect the universal stitching cord to the die with the necessary crocodiles to the required contacts. Plug the resulting cable into the USB port of your personal computer. A characteristic sound about the device connection will appear. Right-click on the "My Computer" shortcut on the desktop.
Step 5
Select "Management". Next, in the directory on the right, launch "Device Manager" and select "Ports". Click on the corresponding line and enter the port parameters: speed and number. This way you will make a cord for your phone. After that, you can download the program for flashing the device.
