Blu VIvo XL Flash Android N

Finally got my Blu Vivo XL running with Android N.

Flash Steps from stock 6.0:

1, Using SP Flash tool to flash tWRP 2.87 for MM from this thread:
https://forum.xda-developers.com/vivo-xl/development/cm13-0-2-3-18-19-twrp-t3530909

2, download AOSPExtended ROM 7.1.2 from this thread:
https://forum.xda-developers.com/vivo-xl/development/rom-aospextended-rom-v4-1-t3592932
But don't flash it yet. This ROM is actually based off Gionee S Plus, the modem is different. If you flash it directly, it will not recognize SIM card.

3, Press Vol+ & PWR button to enter recovery, flash supersu.zip to root.

4, Use any root explorer to copy out system/etc/firmware from Blu stock MM ROM

5. Use winrar to open zip file from step 2, delete system/etc/firmware folder, replace it by same name folder you got from step 4, save zip file

6, Press Vol+ & PWR button to enter recovery, Wipe data, flash zip file from step 5

7, boot to new Android N, install latest Magisk Manager.

8, Done, enjoy your Blu Vivo XL Android N!

Found bugs:

Camera limited to 8MP