The phone’s screen flickered—a ghost image, a static glitch that looked like a screaming face for a split second before vanishing.

"Damn," Kai breathed.

Power off the device. Many RDA phones require holding a specific "boot key" (often the center button or a combination) while inserting the USB cable to enter diagnostic mode. Tool Selection: Open your chosen utility (e.g., Miracle Box) and select the Coolsand/RDA tab Repair Action: Select the Repair IMEI

"A guy on the dark web. Said you'd have the new Coolsand tool."