: Use a pair of metal tweezers or a copper wire to connect the testpoint pad to the metal shielding cage (Ground).
Suddenly, the screen refreshed. Update Successful.
+------------------------------------------------------------+ | DISASSEMBLE ROUTER | | Locate UART TX, RX, GND and Boot Pin (TP Mode) | +------------------------------+-----------------------------+ | v +------------------------------------------------------------+ | HARDWARE CONNECTION | | Connect UART to PC & Short Boot Pin to GND for Boot Mode | +------------------------------+-----------------------------+ | v +------------------------------------------------------------+ | DRIVER & PORT DETECTION | | Verify "Huawei Mobile Connect - PC UI Interface" in PC | +------------------------------+-----------------------------+ | v +------------------------------------------------------------+ | FLASHING THE FIRMWARE | | Load Patched Firmware via Balong Flash / Multicast Tool | +------------------------------+-----------------------------+ | v +------------------------------------------------------------+ | WEBUI UPGRADE & RESET | | Flash Modded WebUI, Execute NVRAM Clear, Restart Router | +------------------------------------------------------------+ Step 1: Hardware Disassembly and Pinout Identification
If you want, I can:
While maintaining the short, plug the USB cable from the router into your PC.
Unlocking the Huawei B311-221 Go to product viewer dialog for this item.
Ensure you have disabled Driver Signature Enforcement on Windows. Re-install the Huawei FC Serial drivers and check your USB Male-to-Male cable connection. Try using a USB 2.0 port instead of a USB 3.0 port. Error: Flashing Hangs at 99% or Fails Midway huawei router b311221 unlock firmware patched
Remove the external casing screws hidden under the rubber pads or stickers on the base of the B311-221.
After applying the code, the router will restart and should now show a signal for the new network. Important Considerations and Risks
: Advanced users may use modified firmware to bypass the "SIM Lock" status. This is often used for devices where standard code entry is blocked or for "V5" security versions. : Use a pair of metal tweezers or
: Deleting or overwriting the non-volatile random-access memory (NVRAM) can permanently erase your original IMEI and calibration data, destroying the router's ability to connect to cellular networks.
: The utility software used to push bootloader files to the device.