To prevent your ISP from automatically overwriting the firmware you just installed, log in → Management → TR-069 → set to disabled . Warning: Some ISPs require this for support; disabling may void tech support.

Once finished, the progress bar will display a green or Finish message.

If the device is stuck in a bootloop, hold down the Power button until the screen goes completely black. Leave the USB cable unplugged for now. Step 5: Start the Flashing Process

Professional-grade paid tools often used for more complex "dead boot" repairs or pattern unlocking. The Installation Journey

chipset. Because it uses a Spreadtrum processor, the stock firmware is typically distributed as a , which requires specific flashing tools like the SPD Upgrade Tool or SPD Flash Tool to install. Prerequisites for Installation

Open the phone’s back cover and remove the battery to read the Hardware ID (e.g., TA-1165 v2.0). The PAC file must match both the model number and the PCB revision.

To install a .pac file, you need the official SPD flashing utility. SPD Upgrade Tool (latest version)

He clicked (or "Flash"). The process took about 3 minutes. Progress bars filled: Downloading bootloader → system → userdata → done .

Essential for the computer to recognize the phone.

The is powered by a Spreadtrum (Unisoc) SC7731E

Đối tác