| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | PC makes "USB disconnect" sound immediately | Battery not disconnected | Unplug the battery flex cable. Re-short. | | PC detects "Unknown Device" | Drivers missing | Install Huawei USB COM drivers or MTK VCOM drivers. | | No detection at all | Wrong test point identified | Your PCB revision is different. Search for "CLK" or "DET" pads near the SIM slot. | | IDT/SPFT gives error 2004 / 2005 | Short released too early or too late | Practice the timing. Short, connect USB, wait 3 seconds, release. | | Phone gets hot quickly | Short to the wrong pin | Immediately disconnect USB and battery. Re-identify the correct test point. |
The Huawei (often referred to as the Huawei GR3 2017 or Nova Young in some markets) is a mid-range smartphone that gained popularity for its sleek metal body, decent performance, and affordability. However, like many Android devices, it is not immune to software issues. Users often encounter the dreaded "FRP lock" (Factory Reset Protection), boot loops, or a "dead" device after a failed firmware update. jmm-al10 test point
While holding the short, plug in the USB cable connected to your PC. | Symptom | Likely Cause | Solution |
: Some procedures require the battery to be disconnected entirely before shorting the points. Software Bypass : For users uncomfortable with hardware, some YouTube tutorials | | No detection at all | Wrong