Huawei U8661 Sonic Plus Android V 2.3.6 Firmware

1. Extract downloaded zip 
2. Open the file we have got
3. Copy dload file to formatted SD card
4. Power off your phone,mount SD card
5. Press together and hold Volume up & Volume down & Power Key

Be patient and wait until it is fully restarted
 http://hotfile.com/dl/193571268/f789227/U8661%20-%20Sonic%20Plus(Android%202.3.6)V100R001C17B819SP01(China%20Unicom).zip