Common Problems Reported by S545 Users
Many users find daily use frustrating due to several major flaws:
- Severe Lag and Freezing: The phone feels slow and often freezes, especially when multitasking.
- Bootloops: The device sometimes gets stuck on the Positivo logo during startup.
- Overheating: The phone can become uncomfortably hot during normal use.
- Rapid Battery Drain: The 3000mAh battery can deplete in as little as 3-4 hours of moderate use.
- Unreliable Connectivity: Frequent loss of WiFi signal and unstable Bluetooth connections.
- Touchscreen Unresponsiveness: The screen may require multiple taps or restart to work.
- Low Audio: The speaker volume is reported to be extremely low.
The Solution: Flashing Official Firmware
Installing the official firmware is essentially a factory-level clean installation of the Android system. This process is highly effective at resolving many software-related problems:
- Fixes Bootloops and Crashes caused by system file corruption.
- Reduces Performance Lag caused by corrupted cache or old components.
- Restores Functionality to corrupted WiFi and Bluetooth drivers.
- Optimizes Software Bugs affecting battery and RAM management.
⚠️ Critical Reminder: Flashing firmware cannot fix hardware problems. It will not improve the cooling design (which causes overheating), increase the 2GB RAM, boost the 3000mAh battery life, or fix physical damage like display bleeding or a failing touchscreen sensor.
Positivo Twist SE S545 Key Specifications
| Specification | Details |
|---|---|
| Model Number | S545 |
| Chipset | MediaTek MT6750 |
| Processor | Octa-core ARM Cortex-A53 |
| RAM / Storage | 2GB LPDDR3 / 32GB eMMC |
| Display | 5.7-inch IPS LCD (720×1440) |
| Operating System | Android 9.0 Pie |
| Battery Capacity | 3000mAh (Removable) |
| Camera (Rear/Front) | 13MP / 5MP |
| Firmware Type | PAC (Spreadtrum/Unisoc format) |
- Verify Model: Only use this file for the Positivo Twist SE S545. Incompatible firmware will brick your phone.
- Back Up Data: Flashing will permanently erase ALL data on your internal storage. Create a complete backup of everything important.
- Battery Level: Ensure the device is charged to at least 60% or keep it plugged in. Power loss during flashing will brick the device.
- Tools: You need the SPD Upgrade Tool and the correct Spreadtrum USB Drivers installed on your Windows PC.
Download Official Firmware for Positivo Twist SE S545
This is the official factory release firmware (V01_11146840) for the S545 model, optimized for the MT6750 chipset.
- 📄 Filename: Positivo_Twist_SE_S545_V01_11146840_SPD.zip
- 📦 Size: 1.35GB (compressed)
- 🗓️ Build Date: October 1, 2019
- 🤖 Android Version: Android 9.0 Pie
- 💾 Chipset: MediaTek MT6750
⬇️ Download Link: MediaFire
How to Flash the Firmware (Steps)
Use the SPD Upgrade Tool for this process, as it is required for PAC firmware files:
- Prepare: Download the firmware, extract the PAC file, and ensure your phone is charged (60%+).
- Drivers: Install the Spreadtrum USB Drivers on your Windows computer.
- Tool: Open the SPD Upgrade Tool, click “Load Packet,” and select the PAC firmware file.
- Download Mode: Turn off your phone. Connect it to your PC with a good USB cable while holding the Volume Down button (or Volume Up, depending on the model) to enter Download Mode.
- Start: Once the SPD tool detects your phone, click “Start” or “Download”. DO NOT disconnect the cable or interrupt the process until it shows a 100% success message.
For a more detailed, visual guide on the flashing process, please refer to the complete tutorial:
📖 Complete Flashing Guide: How to Use the SPD Upgrade Tool to Flash Your Smartphone
