If you own a Huawei Um840 and running into problems want to Hard Rest it then follow these easy steps to Reset it.
Step # 1: Turn OFF Um840
Step # 2: Press and hold Volume UP+Send+Power For Enter To Recovery Mode
Step # 3: Select Wipe Data/Factory Reset Delete Alll User Data
Step # 4: Wait And Select Reboot Phone
You can see button combination in below picture.
Hope this helps to solve your problem.