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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Various > Karbonn

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Old 11-28-2012, 06:53   #1 (permalink)
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Karbonn A21 hard reset




Press Power key + Volume up key + Home Key

and then select clear data.

Regards,
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Old 02-23-2013, 11:23   #2 (permalink)
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karban a21 hard rest i try nmainy time but ok thish metthode 100% tested thishg solution
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Old 02-23-2013, 11:27   #3 (permalink)
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Unhappy

Quote:
Originally Posted by rahul_rocks3 View Post


Press Power key + Volume up key + Home Key

and then select clear data.

Regards,
rahul_rocks3
sir ji need solution for this tablet any ideahttp://forum.gsmhosting.com/vbb/f606...lp-me-1619015/
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Old 03-23-2013, 07:44   #4 (permalink)
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karbonn a21 hardreset, not working for me
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Old 03-23-2013, 08:12   #5 (permalink)
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A21 hard rset not working

HOME KEY sensor touch

after pressing these key only yellow display nothing else
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Old 03-26-2013, 13:41   #6 (permalink)
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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
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Old 03-31-2013, 06:12   #7 (permalink)
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a21 flash file cervice centur in not avlable
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Old 04-03-2013, 15:10   #8 (permalink)
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format karbonn a21

Press Power key + Volume up key + Home Key

and then select clear data. ok power butan up dawun vollum key
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Old 06-10-2013, 13:55   #9 (permalink)
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http://forum.gsmhosting.com/vbb/f824...0/#post9490492
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Old 09-26-2013, 15:15   #10 (permalink)
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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
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Old 10-15-2013, 16:26   #11 (permalink)
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hard reset done hold volume + power and home button for 5 more seconds even after green screen appears than
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Old 12-02-2013, 14:36   #12 (permalink)
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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.
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Old 12-20-2013, 08:55   #13 (permalink)
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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
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Old 06-06-2014, 15:47   #14 (permalink)
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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
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Old 08-17-2014, 10:39   #15 (permalink)
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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
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