By default, SP Flash Tool uses its built-in MTK_AllInOne_DA.bin . However, many modern MediaTek devices—especially those from brands like Xiaomi, Oppo, Realme, and Infinix—require a custom, device-specific DA file to bypass secure boot protections.
: If you previously flashed the wrong firmware, use a tool like MTKClient to erase userdata and metadata partitions before attempting a fresh flash.
: Try flashing everything except the preloader first to see if the device revives enough to accept a full flash later.
A residual charge in the capacitors can keep the preloader in an erroneous state. sp flash tool error status ext ram exception
Download the official stock ROM that matches your device build number precisely.
The is a low-level memory initialization failure. In 80% of cases, it is caused by either a wrong preloader, incompatible Download Agent, USB connectivity issues, or a faulty battery/voltage. Only a small percentage points to genuine hardware RAM damage.
Depending on the version of SP Flash Tool you use, this error code may present itself in slightly different formats: Error Code Visual Appearance BROM_CMD_START_DATA_FAIL Data transfer failed right as RAM writing initiated. STATUS_EXT_RAM_EXCEPTION Red/Yellow Dialog Box By default, SP Flash Tool uses its built-in MTK_AllInOne_DA
: Using a version of SP Flash Tool that doesn't support your device's security patches or hardware offsets. How to Fix It
In simple terms: the software is trying to load files into the phone's memory to prepare for the flashing process, but the memory chips are rejecting the data, or the tool is using the wrong instructions to access them. Common Causes of the Error
Double-check that your firmware exactly matches your device's hardware revision. : Try flashing everything except the preloader first
Newer versions (v6.x) can be too strict with security checks. For older or mid-range devices, versions like
You may be attempting to flash firmware intended for a different device model or a different hardware revision. Initialization Failure: