Your Flash Code is incorrect. Double-check your IMEI and use a "v2" or "v201" calculator.
Step 2: Detect the DeviceUse a tool like DC-Unlocker or Huawei Monitor to check the current firmware version. Note down the IMEI and the current version. This helps in selecting the correct verified firmware path. huawei e8231s1 unlock firmware verified
Avoid YouTube tutorials with .exe downloaders. Stick to trusted sources: Your Flash Code is incorrect