[Xiaomi Redmi Note 3 Guides, News, & Discussion] adithyan25:
A brief Intro.

Starting from the 7.1.2 ROMs most of the developers decided to follow the process of checking modem version at the time of flashing the rom. Many peoples ended up in

"Error 7- assert(xiaomi.verify_modem("MSM8976.LA.1.0.c3-30041-STD.PROD-1.77504.1.83742.1") == "1")"

The main reason for this is the outdated firmware or it is happened to those who had unofficially unlocked the bootloader.

Some more info..

1. You must be on MM build bootloader. If you are unofficially unlocked bootloader it will give you ERROR7.

[MENTION=5857684]TheStrix[/MENTION] have alreday given a short information about it in his Official LineageOS thread. If you are unaware of it read it here

2.Outdated Firmware.

Your firmware must be from from MIUI Global DEV v7.5.4 or above.

Get MIUI Global DEV v7.5.4 from here

or the latest firmware from here

NB:-

- Iam using the MIUI Global DEV v7.5.4 firmware. All working fine including Volte. I dont know about the second one,you can give it a try.

-If you are unofficially unlocked ,MIUI Global DEV v7.5.4 will re lock your bootloader you will end up in bootloop. :confused:

- I will not be reponsible for any damages.

Solution 1 [Permanent Solution] :cowboy: ..

1. So if you are unofficially unlocked, i will suggest to clean flash the latest MIUI Fatboot Rom. Kenzo users get it from here.

2.Flash it using MIFlashTool ,and officially unlock it.

HOW TO UNLOCK THE BOOTLOADER OF REDMI NOTE 3?

PART 1 : REQUESTING FOR UNLOCK PERMISSION

Step 1 – Open up your favorite web browser in your computer (Chrome is recommended) then go to this link

Step 2 – You’ll see the official page of “Unlock Your Mi Device”. Now simply click on the blue “Unlock Now” Button in the middle of the page.

Step 3 – You’ll see a login page in the next page which is in Chinese. If you use Google Chrome to open the page, then you can simply use its built-in Google Translate feature.

Step 4 – Once logged in, you’ll see the Unlock Application Permissions page.Now simply fill in all required fields then click on that green Apply Immediately button.

Step 5 – In the next page, you’ll need to enter a verification code sent to you via SMS. Check your phone for any SMS verification sent by Xiaomi server. The code is usually valid for only 5 minutes so you need to enter it immediately.

Step 6– Once you have submitted the 6 digits code, you’ll then be redirected to another page saying that from the point toward all you need to do is just waiting for Xiaomi Developers to review and approve your application. Once approved, you’ll get another SMS which normally arrives in 15 min(Atleast for me. For some it may take time). The approval process is manual so just be patient on this.

PART 2 : BOOTLOADER UNLOCKING PROCESS

Requirements for Bootloader Unlocking :

-An active Mi account linked to your device, your phone number and it has permission to proceed with bootloader unlock (follow previous steps above)

-Please backup your data for just in case scenario.

-Again, if you are not fully aware of flashing custom ROM, then you better stay away of unlocking your phone’s bootloader.

Download Mi Flash Unlock tool for Windows here, and install it on your computer / PC.

Step 1 – On your device, please login to your Mi account.

Step 2 – Put / reboot your device into bootloader mode. To do that, simply turn off your device, press the Power button and Volume down ( – ) button at the same time.

Step 3 – On your computer, open MiFlash Unlock tool you’ve just installed. Click on the Agree button when asked.

Step 4 – Login to MiFlash Unlock tool with the same Mi Account.

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

Step 6 – Once your phone is connected, the Unlock button will become active. Next, simply click on the Unlock button to start the process. The unlock process will take about 10 – 15 seconds to complete. That’s all.

After unlocking your phone’s bootloader, you’ll be able to flash TWRP and other custom ROM. Enjoy..

Please take these as your concern upon unlocking bootloader :

One Mi account could only unlock one device within 30 days.

If you see a notice saying that “current user is not logged in connected device” then please reboot your device normally then login with your account in the device (see Step 1).

Unlocking bootloader will wipe all user data especially if your device is encrypted. That’s why you’ll need to create backup before going to proceed.

Neither Xiaomi or I will guaranteed if anything goes wrong during and as the result of unlocking. Proceed with your own risks.

Also, unlocked Xiaomi devices will be marked in the official service end.

PART 3 : Installing TWRP and Custom Rom.

Step 1 –. Get latest TWRP from here. Flash it via fastboot { I will not be explaining that in details}

Step 2 –. Take back up of EFS using Twrp. Wipe Everything including internal storage.

Step 3 –. Install Firmware-Rom-Gapps in order. Error 7 will be solved :D

Solution 2[Temporary Solution] :cowboy: ..

Only try this method if you are not able to officially unlock your device . Dont use the Firmware by Strix.It will relock your bootloader.

Step1 - Downalod the rom to your pc.

Step2 - Use any notepad. Suggestd one Notepad++. Get it from here

Step3 - Open the Rom.zip{dont extarct}. Navigate to META-INF/com/google/android/updater-script.

Double click on updater-script and open it with notepad++. Edit and remove this line from the file

assert(xiaomi.verify_modem("MSM8976.LA.1.0.c3-30041-STD.PROD-1.77504.1.83742.1") == "1")

Allow the file to save and close the zip.{Rom will recompress by itself}.

Step4 - Flash in order. Firmware -Rom-Gapps.

:D:D

Some FAQ's ..

1. Iam not getting volte :(

Ans:- Restore the EFS. Try rebooting your phone 2 or 3 times. After Clean flash ,I had to reboot 3 times to get volte working. :fingers-crossed:

2.Iam not able to see FingerPrint Option?

Ans:- Your are defenitely on an old Firmware.Update to Latest Firmware It will work.

3.Iam getting Some other Errors. :crying:

Ans:- Post your Screen Shot Below.Will Check.

4.Iam getting some other problems in ROM.

Ans:- Report it with proper logs to the developer.Iam helpless.

5.I bricked my device

Ans:- I will Laugh at you. Always do everything at your own risk. :silly:

Some Advices :mad: ..

* At least use search once in your life time. From my observation its clear that no one ever uses search in the Rom Section. Even is there is a solution in every page you keep on asking same questions.

*Dont flood the thread.

*Dont qoute the whole op.

*Respect other members

If this was of help to anyone hit the like :fingers-crossed: