How to unlock lenovo k5 note bootloader

[Jonxn]

I used your method but when i type it says in my phone 
Unlock is not allowed 
What to do pls help sir

[xerxes]

I used your method but when i type it says in my phone 
Unlock is not allowed 
What to do pls help sir

Make sure oem unlocking is enabled in developer options then try the below command in fastboot

Code:

fastboot -i 9x2b4c oem unlock-go

[Jonxn]

Ohh thanks for replying
But will this code work and will my device bootloader get unlocked
Both are enabled
Usb debugging
Oem unlocking

[Jonxn]

Bro can u give a full method on specifically for k5 note like the full method for lenovo k5 note a7020a48 and all the commands to unlock my bootloader
And all the step by step guide pls i need it pls pls

[Jonxn]

Bro it didn't work bro your code
fastboot -i 9x2b4c oem unlock-go

After i typed it again the same message came unlock not allowed
And in command prompt it was written unsupportive for the project
Pls help bro

[X3non]

Bro it didn't work bro your code
fastboot -i 9x2b4c oem unlock-go

After i typed it again the same message came unlock not allowed
And in command prompt it was written unsupportive for the project
Pls help bro

ensure you're using latest adb and fastboot; download @ https://www.hovatek.com/forum/thread-26886.html
follow the instructions @ https://www.hovatek.com/forum/thread-19578.html
if you encounter any error, then upload a screenshot of the error message to imgur.com then post the link here

[Jonxn]

Bro its not working pls provide all steps by step guide for k5 note
Still its writting
Unlock not allowed in the fastboot mode in my device

[Jonxn]

Bro its not working pls provide all steps by step guide for k5 note
Still its writting
Unlock not allowed in the fastboot mode in my device

[xerxes]

Bro its not working pls provide all steps by step guide for k5 note
Still its writting
Unlock not allowed in the fastboot mode in my device

Seems like your device will require keys to unlock bootloader.

[X3non]

Bro its not working pls provide all steps by step guide for k5 note
Still its writting
Unlock not allowed in the fastboot mode in my device

where is the screenshot showing the error messages you receive on each command?
also include the command "adb version"