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Thursday, September 25, 2014

Micromax A51 Android 2.3.7 Root Done

/ On : 12:49 AM
Disclaimer: This method of rooting kingstar A20 & Micromax A51 worked successfully with my 
phone. 
kingstar A20 & Micromax A51 Bolt 
Baseband: bcm21553, 
Android ver:2.3.7 
Kernel version: 2.6.35.7 
I am not responsible if it does not work with your phone or if any harm is caused 
to your device. Although it is safe. 





Disclaimer: This method of rooting kingstar A20 & Micromax A51 worked successfully with my 
phone. 
kingstar A20 & Micromax A51 Bolt 
Baseband: bcm21553, 
Android ver:2.3.7 
Kernel version: 2.6.35.7 
I am not responsible if it does not work with your phone or if any harm is caused 
to your device. Although it is safe. 

Requirements: 
1. Windows 7/8/xp 
2. USB data cable 
Softwares and drivers required: 
1. USB drivers/ Adb drivers( pdanet) 
2. Broadcom drivers 
3. Unlockroot.exe ver:2.3.1 
4. Any file extractor: Winrar , 7Z etc. 
Download Links:
1.Download A20 broadcom drivers from here: (in downloads) 

or

Pdanet for WinXp: 4shared: PdaNetA4126
                                 mediafire: PdaNetA4126
3.Download links for Unlockroot.exe: 
or 
Important: 
1. Please disable Antivirus software on your PC until procedure is complete. 
So that it does not interrupt driver installation etc. 
2. Uninstall Antivirus ,firewall etc applications from your android phone if you 
have installed. 
3. In your android Go to Settings-Applications and 
(a) Tick Unknown sources [√] to allow non market applications. 
(b) In Development –Tick USB debugging to allow usb debugging. 

Procedure: Now come to Main procedure.

Part 1: Installing USB and ADB drivers: ( With the help of Pdanet) 
1. Install pdanet.exe on your pc. Follow the instructions properly. 
2. Select other from device list. 
3. Window will show security message. Click Install drivers Anyway.
4. Connect your device and pdanet will install USB/Adb drivers for your 
device.
5. To confirm, Go to Control panel –Device Manager and you should find 
there- Android phone- 
-ADB interface. 
Part 2: Installing Broadcom drivers:
Note: Please disconnect your phone before installing Broadcom drivers.
1. With winrar or 7z, extract A20 driver.rar any where in your pc. 
2. There is a zip folder USB install 1.8.6.27 in win7 folder. Extract it. 
3. You will get two applications. One for win7 and another for win xp. 
4. Double click and install drivers suitable for your window version. 
5. Read and follow instructions carefully. 
6. Click Install Drivers anyway if Windows displays security message. 
7. Now switch off your phone. Take battery out. Re-insert battery. Do not 
switch on. Connect your device with USB cable. Window will install drivers 
for your device. And show message that Device is connected successfully. 
8. If there is any error .Repeat step 7 again. Or Try through other USB ports . 
9. If drivers installed successfully then to confirm go to Control panel-Device 
Manager and check -PORTs ..There should be displayed Broadcoam Port 
no. 
Now we are ready to root. 
Part 3: Rooting Device:
Note: Disconnect internet connection of pc before installing and running 
unlockroot.exe. Otherwise adds , popups etc will disturb you. 
1. Switch on your phone normally.
2. Again Check that USB debugging is enabled and Unknown sources 
applications are allowed.
3. Install Unlockroot.exe (2.3.1) in your PC.
4. Run unlockroot.exe
5. Connect your A20 with usb cable.
6. Click Root.
7. Click “brcm kingstar A20” in device list.
8. Wait until Root is successful. 
9. It will ask to reboot your device. Click yes.
10. Look for superuser app in app drawer.
Congrats you are rooted now. 
• Download Root checker from play store to confirm.



• Download Busybox from play store and install in /system/bin.

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