Sony devices had a unique "flash mode" (Volume Down + USB). v5.0.1 was notorious for being able to recover devices that showed no signs of life. If your phone had a blinking red LED, v5.0.1 could likely bring it back.
: The tool uses a Download Agent (DA) like MTK_AllInOne_DA_v5.1624 to initialize the hardware and communicate with the eMMC or NAND flash storage [15]. flashtoolv501
Modern SP Flash Tools require authenticated Download Agents signed by MediaTek. v5.01 predates these security requirements, meaning it can interface with preloader mode on old chips without signature checks. This is essential when official repair channels no longer exist. Review: Flashtoolv501 Sony devices had a unique "flash