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Listen for the Windows connection sound. Release the tweezers immediately. Open Windows Device Manager and check under "Ports (COM & LPT)." You should see a port labeled SPRD U2S Diag or SCI USB Serial .
A precision screwdriver set, plastic prying tools, and conductive metal tweezers.
: The test point is typically a small golden circular pad located near the battery connector CPU shield Disconnect the battery cable from the motherboard. Use metal tweezers to bridge (short) the test point to any metal (like the SIM slot or a metal shield).
The Huawei BG2-U01 Test Point method is a lifesaver for technicians and advanced users looking to revive a bricked device. While it requires opening the phone, it is often the only way to bypass a corrupted bootloader or locked state. huawei bg2-u01 test point
⚠️ This process involves hardware manipulation and will void any remaining warranty. It should only be attempted by users who are confident in their skills or by professional technicians. Improper handling can cause permanent physical damage to the device.
Check your PC's under the "Ports (COM & LPT)" section. If successful, you will see a newly recognized device port (such as MediaTek PreLoader or a generic USB serial port).
You should consider using the test point method if your Huawei BG2-U01 exhibits any of the following symptoms: Listen for the Windows connection sound
Open the tablet and disconnect the battery cable for 5 seconds, then plug it back in. Ensure the device is fully off.
Sometimes, the core boot files (preloader, bootloader) are damaged. Flashing a "board firmware" (also known as .pac file for Spreadtrun devices) can revive the device, and this process often requires the test point to force the tablet into the correct flashing mode.
If you can share a clear photo of the motherboard (both sides), I can mark the probable test point location for you. A precision screwdriver set, plastic prying tools, and
Standard key combinations (Volume + Power) fail to enter Fastboot or Recovery mode.
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Watch your computer screen. As soon as you hear the Windows hardware connection sound or see the progress bar change in SP Flash Tool, .
When you short two specific test points (usually a combination of a test point and a ground point), you override the device’s normal boot sequence. This forces the CPU to enter a low-level state where it can communicate with flashing tools like SP Flash Tool, Miracle Box, or IDT (Huawei’s download tool).
To better understand the hardware you are working with, here are the key specifications of the Huawei MediaPad T3 7.0 BG2-U01: