When the device is connected via Test Point , it should show up as: Samsung Exynos USB Device (rather than Samsung Mobile USB Serial Port ).
What are you seeing in Device Manager?
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If you are a developer or enthusiast interested in reviving an old Samsung tablet, track these repositories and lists: exynos 3830 driver work
The is an 8nm chipset developed by Samsung for entry-level and mid-range devices. "Driver work" for this chipset primarily involves USB communication (EUB mode) for flashing, unlocking, and repairing devices in a factory-service environment. Core Technical Specs (Exynos 850 / S5E3830) Process: 8nm LPP CPU: Octa-core Cortex-A55 at 2.0 GHz GPU: ARM Mali-G52 MP1 (1001 MHz) Modem: Integrated LTE Cat.7 Downlink / Cat.13 Uplink Camera/ISP: Supports up to 21.7MP rear/front cameras Display: Up to Full HD+ (2520 x 1080) Exynos 3830 Driver & Service Workflow When the device is connected via Test Point
Driver prints nothing or fails quietly during boot. If you are a developer or enthusiast interested