[Huawei P9 Guides, News, & Discussion] JuliusJ:
Not an expert, but this what worked for me

Ok first & foremost, I m a novice when it comes to rooting & android.

After going through numerous articles, and trying various options. this what worked for me. I m not sure which all steps really helped me in unlocking my P9. But the best part, it got unlocked. You may completely ignore some steps, depending on your knowledge.

Steps

1)	First enable developer mode. Go to Settings ->About phone. Click Build seven times.

2)	You will see Developer options under Settings. Inside Developer options, check uncheck Screen lock. Check OEM unlock & USB debugging

3)	Install adb-setup-1.4.3.exe in your laptop. For step 3, you may further refer http://xdaforums.com/showthread.php?t=2588979

4)	Next is getting the unlock password from Huawei website

The link is https://emui.huawei.com/en/plugin.php?id=unlock&mod=detail

Here you have to give

	Product id which we get by dialing *#*#1357946#*#*

	EMIE (Settings -> About Phone)

	Build number (Settings -> About Phone)

Model number (Settings -> About Phone)

	Serial Number (Settings -> About Phone -> Status)

Note the unlock password

5)	Next download adb_tools-2.0 http://www.mediafire.com/download.php?v17uyu4g7u94g8m and unzip to c:\drive

in such a way that the adb.exe , fastboot.exe and so forth are in the location C:\adb_tools-2.0

6)	Shift + right click on adb_tools-2.0 folder and select open with command prompt. Now the CMD prompt open with prompt @ C:\adb_tools-2.0 folder

7)	Connect USB cable to mobile.

8)	Make sure Hi suite software is installed, so all USB drivers are installed

9)	Power off the Mobile. After power off, immediately press Vol down & power button together, so the mobile boot to fastboot mode. Android Icon will appear showing the message 'Phone locked'

10)	Now back to the CMD prompt you opened in step 6 in your laptop. Type the cmd

fastboot oem get-bootinfo

the following messages may appear

Bootloader Lock State: LOCKED indicates that the bootloader is still locked.

11)	Now time to unlock, Type the cmd

fastboot oem unlock <password>

in my case

fastboot oem unlock 2111352531229935

The phone will get unlocked

Go through the next few clicks.

From steps 4 to 11 , further refer http://forum.gsmhosting.com/vbb/f810/guide-all-huawei-mobile-phones-root-1671714/

12) Type the cmd

fastboot oem get-bootinfo

if the message is

Bootloader Lock State: UNLOCKED indicates that your device’s bootloader has been unlocked

//JJ

---------- Post added at 02:28 AM ---------- Previous post was at 01:53 AM ----------

Ok it happened to me too. Carefully watch that video in Spanish from 1:44 to 2:54. As I dont understand Spanish, I carefully followed the procedures and hand movements. Example when to plug the cable & unplug the cable. When press Vol down + Power and when to press VOl Up + power button. Basically mimicking the action from 1:44 to 2:54. Had to repeat the video few times, but finally got the TWRP touch mode creen.

Some steps which I followed strictly. Pls note I m a complete novice. The steps may be repeatative or not required at all. But these steps worked for me (it was gathered from various online forums)

1)	First enable developer mode. Go to Settings ->About phone. Click Build seven times.

2)	You will see Developer options under Settings. Inside Developer options

Uncheck Screen lock. Check OEM unlock & USB debugging

3)	Settings -> advanced settings -> Security . Check Unknown sources (installation of apks)

4)	Install rootcheck-5.9.0.apk ( or any version) in your mobile. Use Root Check app in mobile to see if the OS can be rooted.

5)	Install adb-setup-1.4.3.exe in your laptop. For step 5, you may further refer www stechguide.com/how-to-install-adb-and-fastboot-on-windows

6)	Next is getting the unlock password from Huawei website

The link is https :// emui.huawei.com/en/plugin.php?id=unlock&mod=detail

Here you have to give

	Product id which we get by dialing *#*#1357946#*#*

	EMIE (Settings -> About Phone)

	Build number (Settings -> About Phone)

Model number (Settings -> About Phone)

	Serial Number (Settings -> About Phone -> Status)

Note the unlock password

7)	Next download adb_tools-2.0 www mediafire.com/download/v17uyu4g7u94g8m/adb_tools-2.0.zip and unzip to c:\drive

in such a way that the adb.exe , fastboot.exe and so forth are in the location C:\adb_tools-2.0

8)	Shift + right click on adb_tools-2.0 folder and select open with command prompt. Now the CMD prompt open with prompt @ C:\adb_tools-2.0 folder

9)	Connect USB cable to mobile.

10)	Make sure Hi suite software is installed, so all USB drivers are installed

11)	Power off the Mobile. After power off, immediately press Vol down & power button together, so the mobile boot to fastboot mode. Android Icon will appear showing the message 'Phone locked'

12)	Now back to the CMD prompt you opened in step 6 in your laptop. Type the cmd

fastboot oem get-bootinfo

the following messages may appear

Bootloader Lock State: LOCKED indicates that the bootloader is still locked.

13)	Now time to unlock, Type the cmd

fastboot oem unlock <password>

in my case

fastboot oem unlock 2111352531229935

The phone will get unlocked

Go through the next few clicks.

From steps 5 to 13 , further refer forum.gsmhosting.com/vbb/f810/guide-all-huawei-mobile-phones-root-1671714

14) Type the cmd

fastboot oem get-bootinfo

if the message is

Bootloader Lock State: UNLOCKED indicates that your device’s bootloader has been unlocked

15)	Now when you power on -> you wil get some messages. You have to live with it unless the phone is locked back

16)	Now Power off

17)	Close the cmd prompt in the laptop that you continued with in Step 14

18)	Connect the USB cable back

19)	Press Vol down + Power button to FASTBOOT mode. You will see the android icon

20)	go to TWRP folder in your laptop

21)	Open TWRP-HUAWEIP9.bat. Press Enter once, it will install TWRP and the mobile will auto restart. Press Enter for the second time to exit the cmd prompt.

22)	Remove USB cable from mobile

23)	Now Press Vol UP + power button, until the mobile restarts to show Huawei logo. After Huawei logo flashes and fades away, take the finger away the power button.

Only keep pressing the vol up button. And take away the finger from the vol up too. ( not sure if that is the way, but I just mimicked the actions in that video)

24)	Now it boot to TWRP touch mode.

For steps 18 to 24, get a better idea by watching the video in Spanish by the author of this thread. Watch from 1:44 to 2:54

25)	One imp thing is to prepare the zip files ( CUSTOM ROM or SuperSU )in a OTG cable + USB pendrive combination or SDCARD . In my case I transferred the zips to an external sdcard.

26)	Now using the TWRP touch mode screen , click install

27)	Select the drive ( in my case , external SDCARD) & install SUPERSU zip

28)	After installation, power on to the mobile & check using Root Check app in mobile to see if the OS can be rooted. It will be a yes

//Julius

---------- Post added at 02:38 AM ---------- Previous post was at 02:28 AM ----------

Just a thought in lines where we try to cheat airlines to issue a ticket in a currency we want - by changing the time zone of the computer. Or combination of Time zone changing say to India & using VPN proxy tunneled through India. It might work I guess.

I bought my P9 from UAE & I m on a visit to India. The unlock option from Huawei website worked. So . it might.