Boot and Install Android 7.1 on Lumia 520 | Easy Method

Yup ! You can Get Android 7.1 in your lumia 520 , even that major android devices didn't get it already , so if you want to enjoy android features in your lumia you can follow this tutorial

Steps to install Android 7.1 on Lumia 520

1. Full backup Win32diskimage to 7.8GB of memory if you want to return 520 Windows Phone:
   https://sourceforge.net/projects/win32diskimager/
2. Windows device thor2 recovery tool for the bootloader to load:
   https://support.microsoft.com/vi-vn/help/12379/windows-10-mobile-device-recovery-tool-faq
3. Link booloader, file gpt, twrp, rom cm13 :
   https://drive.google.com/drive/folders/0B_4r4JB1Is2QRHZSbU5hVks3WWs
4. Update link CM14.1 (HOT):
5. 
   https://drive.google.com/file/d/0B-TpiHEnTdWrUDFBZFVoQUNITTg/view?usp=sharing
6. Unlock bootloader: unlock bootloader via WP internal Need (google.com)
7. Backup WinPhone WinPhone if there want to return: Mass Storage mode via WP Internal mode. Use Win32DiskImage then full 8gb memory backup. (Store carefully, do not delete)
8. Proceed to install Android on Lumia 52X 
9. On Windows: 4.1: In mode flash bootloader Nokia Boot Manager to the directory of the device recovery tool windows Shift + Right: Open command here Type the command: -mode rnd thor2 -reboot
10. When the phone to vibrate 1 knocker: mode rnd thor2 -bootlumiabootmgr
11. If it does all of the machine partition is oke, ph Nokia loud big logo will hang Rest assured, continue to flash the bootloader of the android: UEFI -partitionimagefile thor2 -partitionname uefiflash -mode “aboot-xxx.mbn file path
12. On the phone screen will display green NOKIA (already successful flash)
    Remove the battery, insert the battery, the phone will not turn on the machine display Nokia logo. No problem, the machine has to be the android fastboot mode.
13. Boot ubuntu and switch terminals. repartition memory through Mass Storage Mode Mode, Type: fastboot devices (displays the first line device is xxxxx)
    fastboot reboot-dload oem
    GDisk sudo -l / dev / sdX to check the partition windows phone
    sudo sgdisk –load-backup = “path file.gpt” / dev / sdX (to repartition)
14. deleted Win old data to install Android:
    Remove the battery inserted, the holding power + silencer. USB cable connected to your computer and type: fastboot devices
    fastboot format system
    fastboot format userdata
    cache fastboot format
    fastboot flash recovery “twrp.img file path”
15. Then, remove the battery, keep the power + volume, wait times are boots twrp 1
    Copy rom into memory, this time I was like 1 child Lumia phones running android true.
    Wipe system, data, cache, cache dalvik
16. Flash rom
    Reboot
17. To Fix Audio issues: Return fastboot mode by turning it off, hold the power button and the muffler to access the fastboot mode, turn on the terminal and type: fastboot devices
    fastboot flash TZ “TZ file path”
    fastboot flash modem “modem.img file path”