Huawei P9 Lite Convert to dual sim/Debrand
If you have Huawei P9 lite single sim and want to make it dual sim, method is very easy. you can use this method on all versions of P9 lite.
Note: You will lose your warranty.
Do it at your own responsibility.
- This guide only works if you are running marshmallow
- Backup all important data
- Your device should be rooted (Click here to see how to root Huawei P9 Lite?)
- Download dualsim C342OEM patch file from VNSL-L31 File | VNS-L21 File
- Copy downloaded patch file C342OEM on your sd card (Don’t Extarct)
- Boot your phone in twrp recovery mode
- Tap on install and select the patch file you have copied on sd card
- swipe to flash it. you will lose data.
- Device will restart with red warning sign, its normal.
- if it ask for password, enter any numbers and press format
- After format reboot to bootloader and unlock bootloader again.
- Now download DUAL SIM firmware B160 from VNS-L31 Firmware Link | VNS-L21 Firmware Link
- Extract downloaded firmware zip file and copy update.app file to dload folder on your sd card.
- If dload folder is not there, you can create by yourself
- Now switch off phone then press and hold 3 buttons (Vol up, vol down and power) until you see update screen
- Done your phone is now dual sim.
- Now in future you should always use dual sim firmware for your phone.
Guide Source: HTCmania Translated in english by: Ministryofsolutions.com
![[Official] Huawei bootloader unlock tool](https://i0.wp.com/ministryofsolutions.com/wp-content/uploads/2016/09/Huawei2BLogo.jpg?fit=200%2C200&ssl=1&resize=40%2C40){kind=small}
Hello, is it possible to do the same with p9 single sim?
Thanks,
Mattia
This guide is for single sim to make it dual sim
Ah, ok i got it, i will see if possible for p9
Hi you dont perhaps have a video on how to do this exactly please p9 lite single sim to dual sim like you explained
Your phone has been already converted to dual sim, through TeamViewer, i hope you are enjoying it
is this realy working?
Yes it works, if you know how to do
Can you put the video how to do:) i want to try but not shure if i brick my new phone
No sorry, i don’t have video
But i provide remote support through TeamViewer, and step by step guide through chat, which is not a free service
how much to do this with Team Viewer
Check your email
this was so helpful
did you tried this tutorial?Some friend brick his phone with this
So far, i have converted 5 phones following same tutorial
whether the received update nougat if you switch the dual sim
There’s no guarantee, some people receive some don’t, it depends in which region you are using phone
how to restore it to be single sim?
My Model No. is
-Huawei P9-Lite (VNS-L31)
-SIngle Sim
-Unlocked
I purchased it from UK.
Now, I am using in Bangladesh.
Is it possible Convert to Dual Sim Version & How?
Any Risky?
Just follow guide on this page, this method 100% working, try at your own responsibility
Hi can you assist me. My version is a VNS L23. single sim
Yes, you can follow this tutorial,and use VNS-L31 file, keep in mind you will lose warranty,
Hi Mutahhar, IMEI will be changed after flashing other OEMINFO?
No, in new models, imei is not linked to oeminfo, be fearless
Thanks for anwser.
So, where does IMEI for SIM2?
In stock is only one IMEI for SIM1.
Both sims use single imei, because you can’t make call from both sim cards at same time
Thanks.
Could you write email to me? I have a private question.
mr bashir,
You’re solution worked like a charm.
Thanx for the support.
I have converted two huawei P9 lite from single to dual sim with success.
Regards,
Tim
Thanks for precious comment
hi is this tutorial realy works, I want me try but I’m afraid that does not brick your phone 🙂 this is the same procedure as the xda toolkit or not?
Could not find ‘META-INF/com/google/android/update-binary’ in the zip file. Error installing zip file ’emmc/VNS-L21_C432_Dualsim.zip’
Any help
Link updated, please download file again and try
Well it seems to be working. Although, it showed an error while installing new firmware, but it works. Thanks a lot Mutahhar!
hi is this tutorial realy works, I want me try but I’m afraid that does not brick your phone 🙂 this is the same procedure as the xda toolkit or not?
This tutorial is written after practically doing all the stuff, but it depends on you how much you understand, process is same as xda toolkit do
I’ve tried XDA Toolkit, but it hasn’t worked for me. I find this tutorial much easier.
how to unroot? to get update nougat?
After unroot use twrp method to install nougat, its safest way, here is unroot guide https://ministryofsolutions.com/2016/08/how-to-unroot-your-android-smartphone.html
can you put that nougat firmware for dual sim 🙂 and I use twrp method to install nougat
Nougat already shared, please use search option to find nougat, installation guide is also included on that page
no need to unroot,becouse after flash rom ,all returned to the factory,root gone and bootloader is lock
unlock bootloader-instal twrp-root-flash oeminfo and custom.bin- fastboot stock recovery-dload 3 three buttons to reflesh to be again locked bootloader and unroot phone.And after that received regualr nougat ota updated 🙂
Hi im about to convert my single sim to dual sim VNS-L31C16B120 europe. Im in south africa will this method work on my phone?
Yes, 100%
Thanks Ive done it successfully now im in dual sim,where can I get the nougat update now
Tell me your full build number
Before my build was VNS-L31C16B120 singe sim now is VNS-L31C432B160 I want nougat and id like to know if it will still be dual sim
Dual sim functionality will remain intact
So where can I download the nougat update?
Use search option to find nougat for your model number
whether it is mandatory to twice unlocks bootloader,since it is only in this tutorial mentions that the twice to unlock bootloader?
All steps should be followed
whether oeminfo it must contain custom.bin?Because in other directions oemino file does not contain custom.bin?what it means and whether it is necessary?
how to go back from B371 to B161 (L21c432b161)?Do you know any tutorial
Find rollback package from huawei website, install it then flash B161
can it Oeminfo and rom from your instructions B160 after rollback package?
B160 is for dual sim, b161 is for single sim, oeminfo not tested on nougat
I know that,but where to find tested oeminfo
Hi there !
I want to try this tuttorial but i need to know something … i use b161 rooted , is working whit this tutorial or i need to put b161 and folow this steps ¿?
soz .. i mean 161 ,,, rooted and i need to put 160 ?
I made all the 1st step without problem .. but to the second when i want to update from dload sdcard .. i get the error ” failed to update ” … “download again the package ”
any ideea ?
Use another card or try from internal storage
I want to try this method, but dont understand how to reunlock bootloader again if I need to boot in bootloader after first step?
You can always boot to bootloader mode, (switch off phone, hold volume down button and connect with pc)
VENDOR AND PRODUCT İNVALİD ARGUMENT 🙁
You are running nougat?