If your mobile huawei ascend g510 gives slow speed of operating system compared to normal condition, then we can solve this issue by hard reset method. Patten lock also be unlocked by this trick easily within five minutes. Before hard reset your mobile first take backup of important data on computer hard drive, because this will delete all data on mobile memory. you can also reset mobile via settings if you have remember your pattern lock, otherwise key combination is best method to hard reset the mobile phone.
Huawei Ascend G510 Unlock Pattern Lock
1.Ensure the device is turned off.
2.Press and hold volume up + power button until the android logo appears on display then click android logo.
3.Browse with volume buttons and select “wipe data/factory reset” then press power button
4.Select “yes” and press power button
5.Wait until format is complete
6.Select “reboot” and press power button
7.Wait until the phone restarts