[Huawei P9 Lite Questions & Answers] randhackr:
I've found something better with Huawei Firmware Finder. This OTA package: VNS-L31C900B319-log, it only has the recovery in the update.app. This recovery supports wifi to download the original firmware.

update.hicloud.com:8180/TDS/data/files/p3/s15/G1305/g223/v61272/f1/full/update.zip

The most important part is:

ro.build.id=NRD90M

ro.build.version.incremental=eng.jenkin.20160910.101118

ro.build.version.sdk=24

ro.build.version.preview_sdk=0

ro.build.version.codename=REL

ro.build.version.all_codenames=REL

ro.build.version.release=7.0

So they are working on nougat for our p9 lite.

Here is the full default.prop:

#

# ADDITIONAL_DEFAULT_PROPERTIES

#

ro.secure=1

security.perf_harden=1

ro.adb.secure=1

ro.allow.mock.location=0

ro.debuggable=0

ro.zygote=zygote64_32

pm.dexopt.first-boot=interpret-only

pm.dexopt.boot=verify-profile

pm.dexopt.install=interpret-only

pm.dexopt.bg-dexopt=speed-profile

pm.dexopt.ab-ota=speed-profile

pm.dexopt.nsys-library=speed

pm.dexopt.shared-apk=speed

pm.dexopt.forced-dexopt=speed

pm.dexopt.core-app=speed

dalvik.vm.image-dex2oat-Xms=64m

dalvik.vm.image-dex2oat-Xmx=64m

dalvik.vm.dex2oat-Xms=64m

dalvik.vm.dex2oat-Xmx=512m

ro.dalvik.vm.native.bridge=0

dalvik.vm.usejit=true

dalvik.vm.usejitprofiles=true

dalvik.vm.appimageformat=lz4

ro.magic.api.version=0.1

debug.atrace.tags.enableflags=0

persist.sys.usb.config=manufacture,adb

sys.usb.configfs=1

sys.usb.controller=hisi-usb-otg

#

# BOOTIMAGE_BUILD_PROPERTIES

#

ro.bootimage.build.date=Sat Sep 10 10:12:48 CST 2016

ro.bootimage.build.date.utc=1473473568

ro.bootimage.build.fingerprint=hi6250/hi6250/hi6250:7.0/NRD90M/jenkin09101011:user/test-keys

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=NRD90M

ro.build.version.incremental=eng.jenkin.20160910.101118

ro.build.version.sdk=24

ro.build.version.preview_sdk=0

ro.build.version.codename=REL

ro.build.version.all_codenames=REL

ro.build.version.release=7.0

ro.build.version.security_patch=2016-08-05

ro.build.version.base_os=

ro.build.date=Sat Sep 10 10:11:18 CST 2016

ro.build.date.utc=1473473478

ro.build.type=user

ro.build.user=jenkins

ro.build.host=huawei-105-59

ro.build.tags=test-keys

ro.build.flavor=hi6250-user

ro.product.model=HUAWEI

ro.product.brand=hi6250

ro.product.name=hi6250

ro.product.device=hi6250

ro.product.board=hi6250

# ro.product.cpu.abi and ro.product.cpu.abi2 are obsolete,

# use ro.product.cpu.abilist instead.

ro.product.cpu.abi=arm64-v8a

ro.product.cpu.abilist=arm64-v8a,armeabi-v7a,armeabi

ro.product.cpu.abilist32=armeabi-v7a,armeabi

ro.product.cpu.abilist64=arm64-v8a

ro.product.manufacturer=unknown

ro.product.locale=en-US

ro.wifi.channels=

ro.board.platform=hi6250

# ro.build.product is obsolete; use ro.product.device

ro.build.product=hi6250

# Do not try to parse description, fingerprint, or thumbprint

ro.build.description=hi6250-user 7.0 NRD90M eng.jenkin.20160910.101118 test-keys

ro.build.fingerprint=hi6250/hi6250/hi6250:7.0/NRD90M/jenkin09101011:user/test-keys

ro.build.characteristics=nosdcard

ro.build.hide=true

ro.hardware.alter=unknown

# end build properties

#

# from device/hisi/hi6250/system.prop

#

ro.config.mmu_en=1

dalvik.vm.heapsize=256m

ro.opengles.version=196610

ro.sf.lcd_density=480

hw.lcd.density=480

persist.fw.force_adoptable=true

dalvik.vm.checkjni=false

ro.bt.bdaddr_path=/data/misc/bluedroid/macbt

ro.config.hw_navigationbar=true

ro.hwui.texture_cache_size=48

ro.hwui.texture_cache_flushrate=0.4

ro.hwui.layer_cache_size=32

ro.hwui.path_cache_size=16

ro.hwui.shape_cache_size=2

ro.hwui.drop_shadow_cache_size=6

ro.hwui.gradient_cache_size=1

ro.hwui.text_large_cache_height=1024

ro.hwui.text_large_cache_width=2048

ro.hwui.text_small_cache_height=1024

ro.hwui.text_small_cache_width=1024

ro.hwui.r_buffer_cache_size=8

ro.hwui.fbo_cache_size=0

debug.hwui.render_dirty_regions=false

debug.hwui.enable_bp_cache=false

ro.config.hw_music_lp=true

ro.tui.service=true

persist.media.offload.enable=true

ro.config.hw_sensorhub=true

ro.hwcamera.sm.video_size=640x480

build.hisi_perf_opt=true

build.hisi_rot_ani_opt=false

ro.config.hw_perfhub=true

persist.video_player_opt = 1

persist.decode_bitmap_opt = 1

persist.touch_vsync_opt = 1

persist.partial_update_support = 1

persist.decode_bitmap_opt = 1

persist.rog_feature=1

ro.config.hw_vowifi=true

ro.config.callinwifi=100,6

ro.product.platform.pseudonym=1ARB9CV

#

# ADDITIONAL_BUILD_PROPERTIES

#

ro.config.ringtone=Ring_Synth_04.ogg

ro.config.notification_sound=pixiedust.ogg

ro.carrier=unknown

ro.config.alarm_alert=Alarm_Classic.ogg

persist.sys.cpuset.enable=1

persist.sys.cpuset.subswitch=255

persist.sys.cpuset.fg_on=0-7

persist.sys.cpuset.bg_on=2-3

persist.sys.cpuset.keybg_on=2-3,7

persist.sys.cpuset.sysbg_on=0-3

persist.sys.cpuset.topapp_on=0-7

persist.sys.cpuset.fg_off=0-7

persist.sys.cpuset.bg_off=0-3

persist.sys.cpuset.keybg_off=0-3

persist.sys.cpuset.sysbg_off=0-3

persist.sys.cpuset.topapp_off=0-7

persist.sys.iaware.cpuenable=true

persist.sys.save.hmp.up=700

persist.sys.save.hmp.down=384

persist.sys.save.cpu.load.l=99

persist.sys.save.cpu.load.b=99

persist.sys.nosave.hmp.up=700

persist.sys.nosave.hmp.down=384

persist.sys.nosave.cpu.load.l=99

persist.sys.nosave.cpu.load.b=99

persist.sys.dalvik.vm.lib.2=libart.so

dalvik.vm.isa.arm64.variant=generic

dalvik.vm.isa.arm64.features=default

dalvik.vm.isa.arm.variant=cortex-a15

dalvik.vm.isa.arm.features=default

net.bt.name=Android

dalvik.vm.stack-trace-file=/data/anr/traces.txt

ro.confg.hw_recoveryversion=Dallas-Trunk_RECOVERY

Edit: Warning don't flash this file! See my other post bellow.