This guide explains why this happens and provides step-by-step solutions to bypass the error and successfully flash your device.
If your error appeared after a standard flash failed, the Firmware Upgrade mode can often act as a "patch" to repair the DRAM exception. This mode re-flashes the firmware while preserving some partitions like the user data, and is generally safer than full formatting.
When you see the error, it means the SP Flash Tool sent a Download Agent (DA) to the phone's SRAM, but the DA failed to initialize the DRAM (External RAM). The PATCHED part of the message suggests that the device's bootloader has security measures in place that are blocking or detecting the unauthorized agent. It is often linked to: sp flash tool error status ext ram exception patched
Many users report that this simple step resolves the STATUS_EXT_RAM_EXCEPTION immediately, allowing the process to proceed.
To help narrow down the fix for your specific device, could you share the of your phone, the MediaTek CPU chip number (e.g., MT6765, MT6877), and what tool or script you used to apply the patch? Share public link This guide explains why this happens and provides
Download a reputable MTK Auth Bypass Tool (such as the open-source by MCT or Kamaruddin). Open the Bypass Tool and click Crash PL or Bypass Auth .
simultaneously while plugging in the USB cable to enter the correct MediaTek USB Port mode. Are you working with a specific phone model When you see the error, it means the
The "Status EXT RAM Exception Patached" error can be a challenging issue to resolve, but by understanding its causes and following the troubleshooting steps outlined in this paper, users can increase their chances of resolving the issue. It is essential to ensure that the device model and configuration settings are correct, the firmware is compatible, and the USB connection is stable. Additionally, users can try advanced troubleshooting steps, such as editing the scatter file or modifying device configuration settings. By following these steps, users can successfully resolve the "Status EXT RAM Exception Patached" error and flash firmware on their devices using the SP Flash Tool.
Conversely, if you are flashing an legacy legacy chip (like MT6580 or MT6735), downgrade to a specific historical version (like v5.1612) which natively handles older DRAM initialization protocols better. 5. Run SP Flash Tool with Administrator Privileges
Here are the tested solutions for resolving this error, ordered from simplest to most advanced. 1. Use the Correct MTK Auth Bypass Tool
If the error persists, the preloader file in your downloaded firmware is likely incompatible with your specific RAM hardware variant (e.g., LPDDR3 vs LPDDR4x variations on the same motherboard).