Download and install on your Windows PC. Make sure to check the box for "Add Python to PATH" during setup. Download LibUSB-Win32 .
: Leave the phone plugged in, open SP Flash Tool, go to Options > Connection , and set the COM port to match the one identified by the bypass tool. Try flashing again. 3. Change the Hardware Checking Options
Use a high-quality, short USB data cable. Avoid flimsy charging-only cables.
, manufacturers use RAM chips from different vendors (like Samsung, Micron, or SK Hynix). If the firmware you downloaded is for a version with a different RAM offset or configuration, the tool hits a wall, throws the EXT_RAM_EXCEPTION
When you connect a powered-off MTK device to SP Flash Tool, the CPU wakes up in mode. The Preloader’s first job is to initialize the phone’s External RAM (DRAM) — the chip that holds temporary data. sp flash tool error status ext ram exception patched
Extract the alternative firmware and locate the preloader_*.bin file.
To resolve this error, experts on forums like Hovatek and Reddit suggest a systematic approach:
Plug the cable directly into the motherboard at the back of your PC (avoid front panel ports or USB 3.0/blue ports).
Higher versions of SP Flash Tool (v6.x) sometimes enforce stricter authentication checks that cause failures. Download and install on your Windows PC
The SP Flash Tool is a popular software used to flash ROMs, recover data, and unbrick Android devices. However, users often encounter errors while using this tool, one of which is the "Error Status Ext RAM Exception Patched" error. In this article, we will explore the causes of this error, its symptoms, and provide a step-by-step guide on how to fix it.
Ensure the latest MediaTek VCOM drivers are correctly installed and recognized in the Device Manager.
DA failed to initialize DRAM; check DA and firmware compatibility. 0xC0070004
If the device was dropped or water-damaged, the RAM chip may be physically failing. 📝 Steps to Troubleshoot Re-download the firmware from a verified source. Install the latest MTK VCOM drivers. : Leave the phone plugged in, open SP
Generic patched DA files often cause this error. You need a DA that is:
You need to "patch" this security check using an MTK Bypass Tool (such as the open-source by Kamakiri or MCT Bypass). Step 1 : Download and install the LibUSB-Win32 drivers. Step 2 : Open the MTK Bypass Tool and click Bypass .
For modern "Patched" errors, use the MTK Bypass Tool . This utility disables the BootROM protection, allowing SP Flash Tool to communicate with the RAM without the "Exception" trigger. Phase 2: Firmware and Preloader Matching
MediaTek device manufacturers frequently release the exact same phone model with different internal components (like different RAM brands). If you flash a "Revision A" ROM onto a "Revision B" device, you will trigger the Ext RAM Exception.