Karbonn Smart Tab 10 Cosmic Hard Reset

Hard Reset:

• Press and Hold Volume Down + Power key
• Release power key but keep hold Volume Down key for 10 sec.
• Now you see recovery menu.
• select wipe data / factory reset and select yes.
• now reboot device

Karbonn Smart Tab 1 Hard Reset

Hard Reset:

• Press and Hold Menu Key + Power key.
• Now Android Recovery Menu Appear
• Use Home Key to appear and disappear Recovery Menu
• Now select Wipe data/factory reset with Back Key and press Menu Key to confirm
• Now select Yes -- Delete all user data with Back Key and press Menu Key to confirm
• Now reboot Device
• Hard Reset Done

Karbonn S5 Titanium Hard Reset

Hard Reset:

• Press and hold VOLUME UP + POWER KEY
• now you see green screen don't release volume up key
• after 10 seconds you see red screen, now release Volume up key.
• now you see recovery options.
• select wipe data with factory reset and press power key for 2 sec.
• now select yes -- delete all user data and press power key for 2 second.
• now reboot device.

Karbonn A9+ Hard Reset

Hard Reset:

• Press and Hold the volume up key + power button at the same time until a green screen appears. (this is the fastboot mode)
• Keep holding until screen turns red (recovery mode)
• Navigate using hardware buttons (power to confirm selections)
• select wipe data / factory and select yes
• Now reboot device.

Karbonn S1 Titanium Hard Reset

Hard Reset:

• Press and Hold the volume up key+ power button at the same time until a green screen appears. (this is the fastboot mode)
• Keep holding until screen turns red (recovery mode)
• Navigate using hardware buttons (power to confirm selections)
• select wipe data / factory and select yes
• Now reboot device.

Karbonn A5 Hard Reset

Hard Reset:

• Press and hold Volume UP + Power key it will show fastboot recovery in green screen.
• continue press and hold don't leave the keys until it shows recovery in red screen.
• as soon as red screen appears press home key and android logo will come.
• select wipe data/ factory reset and press power key to confirm
• now select yes -- delete all user data press Power key to confirm.
• now reboot device.

Karbonn A4 Hard Reset

Hard Reset:

• Press and Hold Volume Down + Power Key.
• You see a menu.
• select Clear Flash and press power key to reset handset

Karbonn A37 Hard Reset

Hard Reset:

• Press and Hold Volume Down + Power key
• Release power key but keep hold Volume Down key for 10 sec.
• Now you see recovery menu.
• select wipe data / factory reset and select yes.
• now reboot device

Karbonn A34 Hard Reset

Hard Reset:

• Press and Hold Volume UP + Power key
• Now you see Android Logo
• Now touch Home Key to see Recovery Menu
• select wipe data/factory reset with volume down and touch Menu key to confirm
• now select Yes -- Delete all user data and touch Menu key to Confirm
• now reboot device
• hard reset done

Hard Reset method 2:

• Press and hold Volume Down + Power key
• Now a Menu Appear
• select Clear eMMC with Volume down and press Power key to confirm
• hard reset done

Karbonn A30 Hard Reset

Hard Reset:

• Press and Hold Volume UP + Home + Power key.
• you see recovery options.
• select wipe data / factory reset and select yes.
• now reboot device.

Karbonn A3 Hard Reset

Hard Reset:

• Power On Handset and connect to pc or laptop
• Download Android Tool and Drivers
• Install both drivers "SCI android drivers" and "ADB Android Drivers"
• Now open tool and press "5" and hit Enter Key to wipe data / factory reset.
• after format handset restart automatic
• hard reset done

Karbonn A27 Hard Reset

Hard Reset:

• Press and hold Power key + Volume UP + Volume Down to get recovery mode.
• if this method not work then try 2 second method
• 2nd method: press power key
• after vibrate phone press and hold volume UP + volume Down
• you see recovery menu.
• select wipe data / factory reset and select yes.
• now reboot device

One another method is here:

• Power On Handset and connect to pc or laptop
• Download Android Multi tool and Drivers from Here
• Install both drivers "SCI android drivers" and "ADB Android Drivers"
• Now open tool and press "5" and hit Enter Key to wipe data / factory reset.
• after format handset restart automatic
• hard reset done

Karbonn A21 Hard Reset

Hard Reset:

• Press and hold VOLUME UP + POWER KEY
• now you see green screen don't release volume up key
• after 10 seconds you see red screen, now release Volume up key.
• now you see recovery options.
• select wipe data with factory reset and press power key for 2 sec.
• now select yes and press power key for 2 second.
• now reboot device.

Karbonn A2 Plus Hard Reset

Hard Reset:

• Press and Hold Volume Up + Power Key.
• You see a menu.
• Now Press Home Key to See Recovery Options
• Now Select Wipe data/factory reset and touch Enter Key to Confirm
• Now Select Yes -- Delete all user data and touch Enter Key to Confirm.
• Now Reboot your Device.

Karbonn A2 Hard Reset

Hard Reset:

• Press and Hold Volume Up + Power Key.
• You see a menu.
• Now Press Home Key to See Recovery Options
• Now Select Wipe data/factory reset and touch Enter Key to Confirm
• Now Select Yes -- Delete all user data and touch Enter Key to Confirm.
• Now Reboot your Device.

Karbonn A15 Hard Reset

Hard Reset:

• Press and hold Volume UP + Power key it will show fastboot recovery in green screen.
• continue press and hold don't leave the keys until it shows recovery in red screen.
• as soon as red screen appears press home key and android logo will come.
• select wipe data/ factory reset and select yes.
• now reboot device.

Karbonn A12 Hard Reset

Hard Reset:

• Press and hold VOLUME UP + POWER KEY
• now you see green screen don't release volume up key
• after 10 seconds you see red screen, now release Volume up key.
• now you see recovery options.
• select wipe data with factory reset and press power key for 2 sec.
• now select yes and press power key for 2 second.
• now reboot device.

Karbonn A111 Hard Reset

Hard Reset:

• Press and hold Volume UP + Power key.
• you see recovery options.
• select wipe data / factory reset and touch menu or press power key to confirm
• select yes -- delete all user data and touch menu or press power key to confirm
• now reboot device

Karbonn A1 Plus Hard Reset

Hard Reset:

• Power On Handset and connect to pc or laptop
• Download Android Tool and Drivers
• Install both drivers "SCI android drivers" and "ADB Android Drivers"
• Now open tool and press "5" and hit Enter Key to wipe data / factory reset.
• after format handset restart automatic
• hard reset done

Karbonn A1 Hard Reset

Hard reset:

• Power off handset.
• take out and reinsert battery.
• Press and hold Home + Center Key + Power Key
• When you see android logo on screen then press call button to see recovery menu.
• now select wipe data / factory reset and press Center Key to confirm
• now select Yes -- Delete all user data and press Center Key to confirm
• now reboot device to complete the process.