[Xiaomi Redmi 3s Guides, News, & Discussion] m4mohit:
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UNLOCK BOOTLOADER

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NOTE: To be on safe side, Backup your data before doing any experiment. I will not responsible if you damage your phone. So do this at your own risk.

Firstly read Requirement section & Instructions 1,2,3 before trying or downloading anything.

Before unlocking bootloader, YOU NEED PERMISSION OF UNLOCKING BOOTLOADER IN YOUR ACCOUNT.

follow below steps carefully.

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REQUIREMENT:

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1. Redmi 3s/3s Prime Running On MIUI 7/8

2. A PC With Windows xp/7/8/8.1/10 installed

3. USB Cable

4. ADB Drivers [ http://xdaforums.com/showthread.php?t=2588979 ]

5. MiFlashUnlock Tool [ https://drive.google.com/uc?id=0B95YT61gv-breXVPZl9FZ3hkdDQ&export=download ]

6. Qualcomm Driver [ http://cloud.xiaomitips.com/utility/Qualcomm_Drivers_QDLoader.zip ]

7. Mi PC Suite [ http://bigota.d.miui.com/MiFlash/MiSetup2.2.0.7032_2717.exe ]

8. Mi Flash Tool [ http://xiaomiflashtool.com/wp-content/uploads/MiFlash20160830.zip ]

9. Lots of Patience.

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INSTRUCTIONS 1 (Getting Unlocking Permission)

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Before unlocking bootloader, you need to take permission from Xiaomi.

SKIP these steps and Jump to Instruction 2 if you already have unlocking permission in your mi account.

1. open this link[ http://en.miui.com/unlock ] and click on "Unlock Now" button.

2. Log in with your mi account.

3. Fill all details. While filling details you will find a text field "Please input your unlocking reason"

4. In this text field, enter these reasons: "I understand the risks of unlocking bootloader. I want to flash the ROM to fix the bootloop. I request you to grant me the permissions for unlocking."

5. Click on "Apply Now"

6. Verify phone via OTP. After that, your Account is verified and it says Processing and you will receive a SMS within 10 days.

7. Afer 2-3 days you will get a SMS Like "You have been granted for permissions To unlock ur device ..."

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INSTRUCTIONS 2 (Changing Phone Setting)

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1. Now you are having unlocking permission on your phone. So login into the Mi account in your phone with the same id on which you got the unlocking permission.

2. Now remove Fingerprint and Pattern Lock.

3. On your Redmi 3s/3s Prime, go to Settings > About Phone > Tap on "MIUI Version" 7 times. This will enable Developer Options.

3. Now go to Settings > Developer options > enable "USB debugging" and "OEM unlocking"

4. Open the "MI Account" app on your phone and Login with the Phone number or id that you used to get the unlocking Permission.

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INSTRUCTIONS 3 (Downloading & Installing)

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All Downloading links are given in "Requirement" section. Install one by one in sequential order on your laptop/PC.

1. Disable Driver Signature Enforcement in your system [ http://en.miui.com/thread-237673-1-1.html ]

2. Download & Install Mi PC Suite into your laptop/PC

3. Download & Install Mi Flash Tool.

4. Download ADB driver and install it.

5. Download MiFlashUnlock Tool and extract to desktop. It will be easy to find & use from the desktop.

6. Download and install Qualcomm Driver. (To Install Qualcomm Driver, you have to extract the downloaded "Qualcomm_Drivers_QDLoader.zip" file and open the extracted folder. Within some folder u will find the file "qcser.inf" Right click on it and click install. )

7. Restart your PC/Laptop.

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INSTRUCTIONS 4 (Unlocking Bootloader)

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METHOD 1

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1. On your computer, open MiFlashUnlock folder which you have extract in the desktop.

2. Right click on MiFlashUnlock.exe and select "Run it as administrator" & click on 'Yes'

3. Login into the unlocking tool on PC with the same Mi account.

4. Reboot your phone into Bootloader mode. To do that, simply turn off your device, press & hold Power button + Volume down buttons at the same time. Hold until you see Mi Bunny Fastboot logo.

5. Now connect your phone to the computer using its USB cable.

6. Once your phone is connected, the Unlock button will become active.

7. Simply click on the Unlock button to start the process. The unlock process will take about 10 â€“ 15 seconds to complete.

8. You will see the message in green color "Unlocking Successfully" then you are the luckiest guy in this world who unlocked the bootloader in an easiest way.

9. Follow Method 2 if you stuck at 50%

METHOD 2

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1. Go to http://en.miui.com/forum.php

2. Sign in with your account which was used to get unlocked permission.

3. Now open setting of your profile and then Personal Info

4. Here at the end of the page you will find the Device name.

5. Change the device name to Redmi 3s or Redmi 3s prime according to the phone which you have.

6. Save the setting and close the window.

7. Open the MI unlock tool in your PC and login into your Mi account with Phone Number (user id) and try to unlock now.

8. Finally, hit the Unlock button.

9. Now your bootloader will be unlocked, If you still do not get success and stuck at 50% then follow next method

METHOD 3

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1. In your phone, Add your Mi Account in "Settings > Accounts"

If you already have a Mi Account, skip this step.

2.Make sure "Find device" is turned on in the Mi Account app. If you don't know how to turn on find device option then follow this tutorial [ http://en.miui.com/thread-329633-1-1.html ] and move to step 3.

3. Now go to your PC and open the https://i.mi.com and sign in using the same Mi Account (use your mobile phone number as user id)

4. Once you logged in, youâ€™ll be able to see a list of connected devices. If you will see some of your Old Xiaomi phone in the list. Delete them all and make sure your current phone is online. If not then, locate your phone by clicking on "Find Device"

5. Now wait for 1 day.

6. On the next day, reboot your phone into Fastboot mode and open the MI unlock tool in your PC and login into your Mi account with Phone Number (user id) and try to unlock now.

7. Finally, hit the Unlock button.

11. Now your bootloader will be unlocked, If you still do not get success and stuck at 50% then follow next method

METHOD 4

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1. Remove your Mi account from your phone. Also, delete account data.

2. Now again login into your account and turn off find device option

3. Open unlock tool by Right click on MiFlashUnlock.exe and select "Run it as administrator"

4. Login into the unlocking tool on PC with the same Mi account.

5. Don't connect the phone to Computer.

6. Once you Logged in, the Unlock button will become active.

7. Now Disconnect/turn off your internet connection from PC for 5 min

8. It may show "unknown error 501"

9. Now again turn ON the internet connection. And connect your phone to PC in Fastboot mode.

10. Click on Unlock button.

11. Now your bootloader will be unlocked

12. If you still do not get success and stuck at 50% then follow METHOD 4

METHOD 5

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1. Open this link [ http://en.miui.com/download-303.html ] and download the Developer ROM (size: 1.4gb)

2. Paste the downloaded ROM into the internal memory of your phone.

3. Open Updater app and go to option.

4. Select "Choose Update Package" and select the developer ROM which you have pasted into the internal memory. (Before doing this battery should be greater than 30% charged)

5. Now your phone will reboot and installation takes place. It will take around 20 min. or more.

6. Now follow the "steps 2-7 of METHOD 1 "

7. In this method, you will definitely get success.

METHOD 6

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1. Download this Latest MiUnlock flash tool v1.1.1111 [ https://drive.google.com/uc?id=0B95YT61gv-brdkxiM09mTzZya0E&export=download ]

2. In place of an old unlocking flash tool, use this latest MiUnlock flash tool to unlock by following above methods.

3. You may get success but chances are less.

METHOD 7

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If you don't get success in any method then try to change the version of MiUnlock Tool and again try.

Still, if you stuck at 50% then wait for some days (7-8 days) and try again above methods

If you like it then click on "THANKS" button

and Cheers :D if you UNLOCKED your bootloader successfully.

For More updates related to Rooting, Flashing, Unlocking, Bootloop and other such stuff.

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