Karbonn A21 hard reset
 

http://www.gizbot.com/files/2012/10/...artphon-es.jpg

Press Power key + Volume up key + Home Key

and then select clear data.

Regards,
rahul_rocks3

karban a21 hard rest i try nmainy time but ok thish metthode 100% tested thishg solution

sir ji need solution for this tablet any ideahttp://forum.gsmhosting.com/vbb/f606...lp-me-1619015/

karbonn a21 hardreset, not working for me

A21 hard rset not working
 

HOME KEY sensor touch

after pressing these key only yellow display nothing else

the proper steps for hard reset karbonn a21
hold volume + power and home button for 5 more seconds even after green screen appears than keep holding home and volume + button press power button 3 times continiously screen colour changes to red now release all button immediately now it goes to recovery do as of all required

a21 flash file cervice centur in not avlable

format karbonn a21
 

Press Power key + Volume up key + Home Key

and then select clear data. ok power butan up dawun vollum key

KARBONN A6 SUSES HARD RESET BY DRAGON BOX
>>> USB Pinfind No need Hold Mobile Power key...
>>> Scanning Mobile USB Port...
>>> Detecting COM PortCOM39
>>> Connecting Mobile...
Mobile Connection Success...
Mobile Firmware Version:SPRD3
>>> Downloading First Boot...
>>> Mobile Info
Project ID :Spreadtrum Boot Block version 1.1
>>> Downloading Second Boot...
Baud Rate is Switched To:921600
Flash ID:00002CBC
Flash Size:20000000->512M
Flash Name:NAND_SamSungMT29C4G48MAZAPAKD
CPU Name:6820/8810
>>> Auto Formatting ...
Format_RuntimeNV...Fail.
Format_Cache...Fail.
Format_Misc...Fail.
Format_UserData...Success.
All Done...
UNTICK SCANPINOUT
SETPINOUT
VCC -1
USBD- 2
USBD+ -3
GND -4

hard reset done hold volume + power and home button for 5 more seconds even after green screen appears than

Karbonn A21 Hard Reset



Hard Reset:

Press and hold VOLUME UP + POWER KEY
now you see green screen dont release volume up key
after 10 seconds you see red screen, now release Volume up key.
now tou 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.

the proper steps for hard reset karbonn a21
hold volume + power and home button for 5 more seconds even after green screen appears than keep holding home and volume + button press power button 3 times continiously screen colour changes to red now release all button immediately now it goes to recovery do as of all required

Welcome to use miracle box(World's First Fuzzy Logic Based Tool)
SoftWare Version 1.86 Update:14-05-26
Firmware Version:1.11
Connected OK.
Connecting Internet...
You use Latest Miracte Software 1.86
Connecting to Phone,Wait..ok
checking info...
Model:A21
Android Ver:4.0.4
ROOT OK! Reboot!
Connecting to Phone,Wait..ok
Wipe data...
>>Done

Karbonn S5(a21) Titanium Hard Reset 100% Done tested by me

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


idrish911