One of the most reliable interfaces for Spreadtrum/Unisoc feature phones. It allows for reading, writing, and formatting the flash file.
Load the raw binary into Ghidra as (if unsure, try ARMv7-M Little Endian). Set the base address to 0x00000000 . Go to the reset vector at 0x04 . That address is where code starts.
Under the dropdown, select the processor profile matching SC6531E or choose the auto-detect SPI option. Select the action Write .
Click the folder icon next to the file path bar to browse your computer. Select your downloaded . Step 3: Execute the Flashing Process
Turn off the feature phone completely and remove the battery for 5 seconds, then reinsert it (do not power it on).
Search for [Model Name] SC6531E W25Q32BV Flash File .
Click the within the tool interface.
A typical scenario:
The SC6531E is not designed for high-performance smartphones. Instead, it's the powerhouse behind and other basic gadgets. It runs a lightweight operating system (often a Nucleus or ThreadX-based RTOS) that is stored entirely on an external flash chip like the W25Q32BV.
Physically, yes, if it's the same package. But the firmware image is 4MB in size , so it will still use the first half of the larger chip, leaving the rest empty. This generally works fine, as the CPU can only address the first 4MB of the chip's memory.
any existing data, as flashing will wipe the device completely.