Jmm-al10 Test Point Info
If you are uncomfortable opening your JMM-AL10, consider these alternatives before resorting to the test point:
Connect the battery flex cable last to avoid shorting any components during assembly. jmm-al10 test point
chipset, the "test point" typically involves shorting a specific gold contact on the motherboard to the ground (the metal shield) while connecting the USB cable to a PC. m.sunsky-online.com Preparation : Power off the device and remove the back cover. Locate Points Go to product viewer dialog for this item. If you are uncomfortable opening your JMM-AL10, consider
We are not responsible for any physical damage to your device or data loss. This guide is for educational purposes only. Locate Points Go to product viewer dialog for this item
Once you have located the test point, follow these steps precisely.
| 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. |
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