Flashing the (also known as the ) using the Ultimate Multi Tool (UMT)
This article provides everything you need: the correct firmware, drivers, a safe download link, and a detailed step-by-step guide. Vivo 1801 Flash File Umt
often has a locked bootloader, you must use to trigger EDL mode. Power off the device and remove the back cover. Flashing the (also known as the ) using
. Technicians use this file for several critical maintenance tasks: Fixing Soft Bricks a safe download link