Dcode DS-CL4 Tested Flash File SP9863A – Cygnal 4 Booting issue Slow Working Fix

Dcode DS-CL4 Tested Flash File SP9863A – Cygnal 4 Booting issue Slow Working Fix Usually, the Spreadtrum SP9863A chipset-powered Dcode DS-CL4, or Cygnal 4, is known to have boot issues and slow performance which results in the device being almost unusable. These predicaments are often prevalent in the following ways:

 

. Extended boot sequences (5-15 minutes instead of 30-60 seconds)

. Frequent freezing during normal operation

. Unresponsive touch screen and delayed input recognition

. Apps crashing randomly without error messages

. System UI becoming increasingly slow over time

 

Often, these issues persist due to system partitions with corrupted data, dissonance in firmware, and software errors that have gradually piled up because of upgrades, installations that have failed, and system crashes.

Details: SP9863A Chipset Design SP9863A is a top of the line chips with:

. Octa-core ARM Cortex-A55 processor

. PowerVR GE8322 GPU

. 4G LTE Cat7 modem

. A maximum of 4GB RAM support

. Advanced power management unit

If the firmware is corrupted, the optimal performance of the chipset will be hampered, thus the fans of the SP9863 series will experience the slowdown and booting issues that users report.

Conditions for Firmware Flashing to be SuccessfulTools and Software Necessary

1 SPD Flash Tool (Latest Version)

. Research Download Tool v3.2 or later

. Smart Phone Flash Tool v5.xx

. Spreadtrum Research Download Application

2 DS-CL4 SP9863A Drivers

. Spreadtrum USB Driver Package

. Android Composite ADB Interface

. Recognizing the device with the help of specific drivers

3 Confirmed Flash File Elements

. boot.img (Kernel and RAM disk)

. system.img (Android OS files)

. vendor.img (Device-specific components)

. userdata.img (User partition)

. scatter.txt (Partition configuration file)

How to check the correctness of files

Prior to that, you need to check the following in your flash package:

SP9863A_DS-CL4_Vxx.zip (Full firmware)

MD5 checksum verification file

Scatter file with the correct partition table

Firmware version matching your device region

Documentation or readme file

Step-by-Step Flashing Guide

 

Phase1: Before Flashing Preparation

Step 1: Driver Installation and Verification

1.  Download and install Spreadtrum USB drivers

. Disable driver signature enforcement in Windows

. If necessary, install drivers in compatibility mode

. Use Device Manager to check whether the drivers are installed well

2. Get the device ready for flashing

. Turn off the device entirely

. Remove SIM cards and SD card

. Make sure the battery is at least 60% charged

. Backup important data if you can

Step 2: Software Configuration

1. Flash the tool extraction and firmware

. Make a new folder on the C: drive

. Extract all the files with the directory structure intact

. Make sure that no files are blocked by Windows

2. Set up flash tool preferences

. Load scatter file that is found in the firmware folder

. For the initial try, pick the “Download Only” mode

. Allow DA (Download Agent) confirmation

. Choose the right buffer size and timeout parameters

Phase 2: Connection and Flashing Process

Step 3: Creating Connection

1. Using Download Mode

. Press Power button + Volume Down at the same time and hold the keys

. Hold the buttons and connect the USB cable

. Wait for “Spreadtrum USB Device” to be identified by device manager

2. Get the flashing process going

. In flash tool, press “Download” button

. A red progress bar will appear, wait for it to show

. Check connection state in the log window

Step 4: Active Flashing Phase

1. Replacing each partition transition

. preloader – The very first 10 seconds

. boot.img – Delicate kernel installation

. system.img – Main OS installation (the longest phase)

. vendor.img – Additional hardware code

. userdata.img – User partition is being formatted

2. Watching the progress

. The green progress bar indicates that the writes are carried out successfully

. Operations displayed in yellow are ongoing

. Red is for errors which need to be resolved

Phase 3: Post-Flashing Verification

Step 5: First Boot Optimization

1. Initial boot sequence

. Device should be disconnected after “Download OK” message appears

. Power off the device forcibly by pressing Power button for around 15 seconds

. Wait for the first boot (it can be around 10-15 minutes)

2. System is being initialized

. See changes of boot animation

. Comply with verification of a possible reboot loop or freezing

. Hold on for language selection screen

Step 6: Performance Validation

1 Basic functionality testing

2 Touch screen test for response

3 Wireless connectivity (Wi-Fi, Bluetooth)

4 Camera and sensor functionality

5 Audio input/output verification

Download Link: HERE
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Support OS: All Windows (32-64Bit)
Upload By: Ghulam Sarwar
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