Database Users

Jiayu S3 PIN Locked by Kinguser app

First of all, I may be posting this in the wrong section. But I desperately need your help on this.
I got a Jiayu S3, and couldn't not try to flash a custom rom on it, so I tried with "Pure AOSP V1 TF".
All went well, untill i found this app which was included with the rom, "Kinguser" (should be Superuser, i believe), which game me the option to toggle root.
At first and only time I opened this Kinguser app, option root was active. I did deactivate it, and reactivated immediately after.
As soon as i reactivated root, the privacy pin screen showed up.
I didn't set any PIN on my phone, so at first i thought it could be something like 1111 or 0000. Tried 5 times and it made me wait 30 seconds. Then tried another 3-4 times.
Here began the real mess: "forgot pin" (or psw) didn't show up, but at the time i didn't even know about that recovery option.
I didn't know what to do, so I just thought that a factory reset would certainly solve the problem, how couldn't it? Well, wiped everything, but PIN lock screen didn't go away.
So, wiping everything, I also deleted my gmail account from the phone, and I lost the possibility to lock phone and give it a new password (Android Device Manager). Too bad at the time I didn't know about this recovery option as well...
Now I'm out of ideas. I think I've tried every method I could find with a search of "Smartphone PIN locked". Tried with resets, plugins, deleting files with adb..
How do I unlock my phone?
little update: after a factory reset, for 2-3 seconds, it shows the default initial screen, but it doesn't last more that and i just can't do anything.
Now i managed to bring back the stock rom, but with that i lost the twrp recovery, and i can't find a way to make pc recognize the phone to reflash it.
It seems it's going worse instead of better...

I had just bought this Jiayu S3 and planned to bring it on holidays on wednesday, but i'm starting to think i won't be able to fix it before then

Did you have any resolution to this problem. I am currently sitting in the exact same boat. Did the factory reset, pass code screen still there, I didn't set a pass code. Basically hands tied, can't update firmware, guessing i'll have to get a new phone, but hoping maybe you found a miracle cure! ha! - Thanks for any guidance. - Arden (Seattle, WA)

Just flash another rom (stock/original) and start over.

How have you done that?
Can you help please?
I tried factory reset (volume plus+ power button), hard reset (volume- plus power button), update, and nothing works; I also went to two different specialized stores and they failed to find a way to reinstall the original Android version or a recent one.
Comparing the files with the factory version installed in the phone, the phone report identified three changes:
- a new file: /system/priv-app/7mK0T6e8Z5.apk
- the lost of a file: /system/app/com.android.fallen.apk
- and a modified file: /system/bin/debuggerd

AzulFogo said:
How have you done that?
Can you help please?
Click to expand...
Click to collapse
To flash firmware you can use SP Flash Tool on a windows or linux computer (not sure about macosx). You have to decide which firmware you want (which one do you have now?). The 'official' firmwares can be found on needrom. SP Flash Tool can be found there as well. There are 2 popular LP firmwares built by Jiayu resellers in Europe (Xtreme from Spain and Jiayu.de from Germany). Guides on how to flash are often present at the place where you find the firmware.

Dior DNA said:
To flash firmware you can use SP Flash Tool on a windows or linux computer (not sure about macosx). You have to decide which firmware you want (which one do you have now?). The 'official' firmwares can be found on needrom. SP Flash Tool can be found there as well. There are 2 popular LP firmwares built by Jiayu resellers in Europe (Xtreme from Spain and Jiayu.de from Germany). Guides on how to flash are often present at the place where you find the firmware.
Click to expand...
Click to collapse
Thank you!
I found "Xtreme from Spain":
needrom.com/download/rom-xtreme-rom-tf/
I found the "SP Flash Tool":
needrom.com/download/sp-flash-tool-v5-1424-00/
but it is for Linux... can you send me the link of the windows version?
And I could not found the "Jiayu.de from Germany": can you send the link?
Also, can you recommend some good manual for dummies?
Thanks again for your patient and help!

latest sp flash tools is 5.1532
search needrom with "5.1532" will leed you to the download page
no link allowed here, so ...
for beta 10 from jiyau.de, search google with "jiyau.de Lollipop 5.1.1 - Beta 10 (14.10.2015)".
it will leeds you to the rom.
Good hunting
tuto sp flash tool
https://youtu.be/ztI8sc8MUNo

AzulFogo said:
Thank you!
I found "Xtreme from Spain":
needrom.com/download/rom-xtreme-rom-tf/
I found the "SP Flash Tool":
needrom.com/download/sp-flash-tool-v5-1424-00/
but it is for Linux... can you send me the link of the windows version?
And I could not found the "Jiayu.de from Germany": can you send the link?
Also, can you recommend some good manual for dummies?
Thanks again for your patient and help!
Click to expand...
Click to collapse
see jaunedoeuf's answers
I would like to add: if you come from KK and go to LP, you must use firmware upgrade to update/adjust internal SD partition layout. Good Luck! if you succeed, and are happy with firmware, consider voting @ http://forum.xda-developers.com/android/general/firmware-jiayu-s3-t3212184 (almost 100 votes)

First, thank you for your great help!
With your suggestions, I managed to install Lolipop in my Jiayu S3S (upgraded from Kit Kat) - Xtreme ROM TF (JiayuS3-5.1Extreme1.1SP.zip).
However the problem remain... the phone still is asking for a PIN (that I never had put there, in first place)...
What should I do now?

you could try factory reset and are you sure its the phone asking for pin and not the sim card

Wifi stopped working on SM-T555

Hello, i am new to this forum so please don't be rude if this is the wrong section to post this
Today i managed to perma-kill my wifi by starting Pry-Fi and uninstalling it at the same time (shame on me)
Now my wifi seems completely dead it doesn't even try to start.
Things i tried already:
Rebooted with Airplane mode
Used the advanced repair method of the Wifi Connection Manager app
Tried to reset my network/carrier settings with a weird USSD code that didn't work.
Checked /persistent/ and found out that there is no wifi/ folder so i created it inclusive .macaddr file after this post http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643/post60011636
Also i used adbGUI to gather this info: http://pastebin.com/raw/X4kmCn5s
Specs: Samsung Galaxy Tab 9.3? (SM-T555)
Android 5.1.1 Stock (ROOT)
TWRP 2.8.7.1
Please help me to recover my network without resetting the whole tablet ♥

Bluscream said:
Hello, i am new to this forum so please don't be rude if this is the wrong section to post this
Today i managed to perma-kill my wifi by starting Pry-Fi and uninstalling it at the same time (shame on me)
Now my wifi seems completely dead it doesn't even try to start.
Things i tried already:
Rebooted with Airplane mode
Used the advanced repair method of the Wifi Connection Manager app
Tried to reset my network/carrier settings with a weird USSD code that didn't work.
Checked /persistent/ and found out that there is no wifi/ folder so i created it inclusive .macaddr file after this post http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643/post60011636
Also i used adbGUI to gather this info: http://pastebin.com/raw/X4kmCn5s
Specs: Samsung Galaxy Tab 9.3? (SM-T555)
Android 5.1.1 Stock (ROOT)
TWRP 2.8.7.1
Please help me to recover my network without resetting the whole tablet
Click to expand...
Click to collapse
Ok, there is no way to restore your network settings because it might be older or newer than the framework itself so your device is going to crash anyways. So you are going to reset it the Official and Samsung way (might not work with custom roms if you have it installed it on your device). Reply to me if you have installed a custom rom.
As I have told other people who are new to XDA,
(BACKUP YOUR SAMSUNG AND GOOGLE ACCOUNTS AND DATA! I AM NOT RESPONSIBLE FOR ANY DAMAGES AND LOSSES!)
Download Samsung SmartSwitch
Open up the installer and finish it
Then press the More button on the application
Press Device Initialization
Press Device Initialization again in the new tab
Type in your model number and your serial number (Don't press search yet!)
Plug in your device
Turn off your device and go to Download Mode (Volume Down + Power Button + Home Button)
It will say if you want to install a Custom Rom, blah blah blah
Press Volume Up button and it should take you to Download Mode
Go back to the PC and press search
Samsung SmartSwitch should download files and it will come out with the Admin Delegator Privileges
Grant the permission to it
Your new and updated firmware should be downloading
It usually takes 10 minutes to 3 hours depending on how good your Wi-Fi and your computer is.
If I helped smash that Thanks button!

I've already done this steps tonight and also upgraded to Android 6 this way. Now i only have to know how to get the apps and obbs recovered from the TWRP backup i made before ^^

Bluscream said:
I've already done this steps tonight and also upgraded to Android 6 this way. Now i only have to know how to get the apps and obbs recovered from the TWRP backup i made before ^^
Click to expand...
Click to collapse
If you had a twrp backup, why not just restore it in the first place?

ashyx said:
If you had a twrp backup, why not just restore it in the first place?
Click to expand...
Click to collapse
Cause
The backup was created based off Android 5.1
The backup was made AFTER the network settings got damaged

Oneplus 5 stuck on setup?

EDIT: Solution was to sit with OP5 technician which flashed my ROM to Oxygen 4.5.1. After this didn't do it, I RMA-ed it and got a new OP5.
EDIT: TL;DR: After updating OP5 to 4.5.5, It doesn't recognizes sim nor wifi, and can't rollback to 4.5.3 that did and stuck on phone setup (needs wifi). ADB devices is empty, I have Google USB Driver from SDK, Windows 10
Hello,
I just got a new OP5 today.
Opened it in the store, came with Oxygen 4.5.3 outta the box.
I putted the sim in, and I connected to the store's wifi, all was good and even had a phone call to my mother to check if the mic and speaker are working well.
Then when I got home, I upgraded the OS to 4.5.5 through the settings, where Android suggested. I'm new to OP and android (moved from iphone 5) and so if there is a right way to do it, and that's not it, I wouldn't have known.
Then, OP5 didn't recognize the sim anymore and couldn't start the wifi (switching it on wouldn't work, it would do nothing), so I tried Factory reset. Unfortunately it didn't reset the OS as well and now I'm stuck outside can't use my sim card or connect to my home wifi to setup the device.
Tried installing OP5 usb drivers (show when connecting the OP5 to PC) and press the power button and lower speaker volume together, then flush the 4.5.3 OS through USB, but it doesn't recognize ZIP folder and when I tried to unzip and send boot image (cmd->"adb sideload boot.img) it started and then failed at 0%.
Please help, the phone right now is unusable.
Tried the Factory reset through settings, but it took so long I thought it was stuck, so I did it through recovery screen.

Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...

ultramag69 said:
Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...
Click to expand...
Click to collapse
Why should it be replaced in less than a week? Also, isn't there a fix for adb problem so I could flash 4.3.5? Maybe a remote takeover?

Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.

ultramag69 said:
Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.
Click to expand...
Click to collapse
I can't pass the "Connect to Wifi" in the initial setup of the android, as it finds no wifi networks (but of course there are, when I use the sim in my iphone it works properly and there are wifi networks). So I don't know how can I get the IMEI number.
Right now my PC recognizes the OP5 connected via USB, but "adb devices" bring back empty list.
I think that once I get that working, I could unlock the bootloader. But I can't seem to be able to enable dev mode in settings - I can't get there.
I can only get to the recovery screen beyond the initial steps of setting up android.
Right now there is no important data on the phone and I have my laptop which is virgin to ADBs and Drivers (didn't use it to try to resolve it).
What driver and where do I get the right ADB so I could load 4.5.3 from usb to the phone?

When you upgraded, did you wipe cache and dalvik?

Binary Assault said:
When you upgraded, did you wipe cache and dalvik?
Click to expand...
Click to collapse
Wiped after the upgrade whem problems started

Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.

ultramag69 said:
Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.
Click to expand...
Click to collapse
It doesn't seem like I can skip it. Can't pull down a menu or anything
I guess only Oneplus can help me now?
Do you have any suggestion on fixing adb so it would recognize the OP5?

No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...

ultramag69 said:
No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...
Click to expand...
Click to collapse
Welp it is a pickle.
Going to go live chat with OP "level 2" representative.
See if they wipe the phone out and restore an older ROM.
If that't not going to work, RMA it is :/
Shame. A new phone. Took only one picture with my dad when we opened it back at the store. nothing else.

Unfortunately bad things can happen... You just got to be the one who got the dud this time round.....
Here's hoping it's the last time....

you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.

OcazPrime said:
you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.
Click to expand...
Click to collapse
When I connect the OP5 to the PC there are no folders under it (Computer -> OP A500 -> no folders), but I'll try and give it a shot. see what happens. Will update this reply.

Update:
After Oneplus flashed Oxygen 4.5.1 on the phone and some other magic I was able to skip wifi step on setup, yet still when I try to activate it it won't budge. the slider won't move and it looks as the page is being refreshed. Also, when I try to get into sim section in settings it would just freeze and alert the program stopped and suggest to close or wait.
Oneplus says it is hardware issue, and the fact it happened when I upgraded to 4.5.5 from settings menus is coincidence. They say I need RMA it.
If anyone knows how to fix it then I'm more than welcome to hear it.
EDIT: it also won't shut off unless I long press the power button.

Recovery bricked after Nougat update?

First excuse me for opening an other thread like this, i think i have read all other threats regarding my problem, but none have the same situation
My Huawei M3 Wifi (BTV-W09) seems semi bricked after installation of Nougat Update.
The Installation (Force Install with dload) gave me an error and also while boot i got the error message: "Your device has failed verification and may not work properly."
I have the option to press "Powerbutton" and the device will boot up. I checked the Version and it showed android 7 + EMUI 5. The only problem was that almost every system app was missing, like keyboard, calendar etc. (playstore was there)
So i tried to do the rollback with:
HUAWEI MediaPad M3 8 Rollback Package%28BTV-W09 %2CC900B300%2C EMUI5.0%2BAndroid7.0 rollback to EMUI4.1%2BAndroid 6.0%29
The Installtion (force update) gets stuck at 5% and after like 3-5 minutes the tablet will boot up showing the same boot error that can be skipped with pressing powerbutton. I checked sytem and it still showed "android 7 + EMUI 5" but built : BTV-W09C900B300
I think this is the one i "need" to be able to install the "HUAWEI MediaPad M3 8 Firmware %28BTV-W09 %2CC100B006%2C EMUI4.1%2BAndroid 6.0%29"
Problem is regardless which "update.app" i try to force install will get stuck at 5% and give me same error. I have ADB/Fastboot installed and tried some different things like flashing/unbricking it with "Huawei Multitool" where you can extract like boot.img or recovery.img and try to flash it.
Also getting an error. I can access eRecovery witout problems, the option to fix it by itself by wifi doesn`t work. I can´t access "normal" recovery and i think there is the problem (may got bricked while flashing Nougat?) I think its recovery problem, cause when i boot it up to the "half-installed" Android and go into setting "hard-reset" option i know it would boot up intoi recovery and would erease everything, while bootup it shows error "reset failed".
In fastbootmode i see bootloader: unlocked FRM: unlocked
I tried to install TWRP recovery with adb but get error: adb remote command not allowed
I downloaded like 15 different Android Versions 6+7 Emui 4.1+5 to try with force update but none worked, may i have to flash special version of recovery first?
I just want a normal version of android 6 or 7 i dont mind but at the moment with half working 7 "without" systemapps its a hardtime.
I hope someone can help me.
This isnt my first android device and im not a total noob i unlocked bootloader and flashed kernels on many other phones but with the W-09 where i did nothing special i dont get why "recovery got broken"
Thanks in advance

You haven't read other threads too well: more times people reported that the bootloader got locked after an update still declaring itself unlocked!
Second thing you have not found: the Nougat update consist of 2 packages and the second must be installed from TWRP.

nicolap8 said:
You haven't read other threads too well: more times people reported that the bootloader got locked after an update still declaring itself unlocked!
Second thing you have not found: the Nougat update consist of 2 packages and the second must be installed from TWRP.
Click to expand...
Click to collapse
thanks for your anwser, i read that so i also tried unlocking it "again" and it quotet it is also unlocked in adb. I also know that there are 2 packages. That you need TWRP i didnt know thanks so i am a bit smater now. I think i ll try "relock" and unlock it again might be the right way, thanks for the tip.

kivi90 said:
I think i ll try "relock" and unlock it again might be the right way, thanks for the tip.
Click to expand...
Click to collapse
This is nonsense. Unlock, install the right TWRP then install the second zip package.

nicolap8 said:
This is nonsense. Unlock, install the right TWRP then install the second zip package.
Click to expand...
Click to collapse
i cant unlock cause i dont have the code, on the huawei page i try do make an account and get the code by providing the necessary information.
I just uploaded a picture, i choose "before EMUI5" cause this is the only option i can choose "tablets". --> i choose "tablet wifi" , enter product model "BTV-W09" then the serialnumber i can see in setting: 28D6R17316XXXXXX but then i have the problem to input product id, it say i can get it through "Dialer" app (which i dont have in wifi model ) or the calculator. Problem is in my damaged installation there is no huawei calc, other calcs from store dont work (read that problem in other threats) I tried many apps from appstore to get a product ID but huawei site keeps saying wrong product ID =/
With the program DC Unlocker i am able to see a MEID i dont know if its the right one, i tried my luck with the Product ID Generator from Huawei but it doenst work. (device not supported)

It's very strange that it says bootloader unlocked if you have never unlocked...
And was very stupid to try to installl a beta release without before unlocking and taking a backup.
Exhange your device for a Nokia 3110!

nicolap8 said:
It's very strange that it says bootloader unlocked if you have never unlocked...
And was very stupid to try to installl a beta release without before unlocking and taking a backup.
Exhange your device for a Nokia 3110!
Click to expand...
Click to collapse
yeah at this device i never touched bootloader, i didnt think it would become such a big deal , i didnt want unlocked bootloader or other recovery just newest android. Never had any problems with the "force update function" to come back to stock. I tried DC Unlocker but cant get further cause device need to get into manufature mode (thorugh dialer or calculator which i both dont have) i hope maybe i find one more way.

Did you ever find a fix
Did you ever find a way to fix this. I'm in the same situation. I even did a VPN on my router to give me a Hong Kong address for erecovery and that still didn't work. I have the exact same product. Like you I tried to various attempts to download a new recovery, but nothing works. Nice hardware, but some of the worst software/firmware I have ever dealt with since starting with the first release of Android on the HTC Hero.

kivi90 said:
yeah at this device i never touched bootloader, i didnt think it would become such a big deal , i didnt want unlocked bootloader or other recovery just newest android. Never had any problems with the "force update function" to come back to stock. I tried DC Unlocker but cant get further cause device need to get into manufature mode (thorugh dialer or calculator which i both dont have) i hope maybe i find one more way.
Click to expand...
Click to collapse
I had mostly the same problem. I rolled back to 4.1 using the rollback and the actual 4.1 update.app. I think that puts you on C100 if I remember right. Tablet I have is C128 (USA) but no problem for this step. Get the Product ID from the calculator. Allow OEM unlock in the settings, then unlock it using the unlock code. Email yourself the unlock code because who knows if their website will even be functional next time. Alternatively you can extract the stock calculator from the update_data_usa.zip or whatever and try to use DC with 5.0. That second update zip does not install properly via the dload method, so a bunch of stock apps don't get installed. You can kind of hack it and flash it via TWRP but I didn't do it that way.
Or...you can use firmware finder to force an OTA from 4.1 right up to 5.0 (350), then take that last partial OTA to 351 after as well. The way to do that is via DNS in firmware finder. Find the Full OTA in firmware finder you want, send it to the updater by changing your DNS the way it tells you to, and when it does the OTA, everything will be properly installed basically the official way. Good as new. Flash TWRP to recovery2 and replace the erecovery. Keep the stock recovery as is. Install magisk. Golden.
---------- Post added at 03:36 AM ---------- Previous post was at 03:26 AM ----------
kivi90 said:
So i tried to do the rollback with:
HUAWEI MediaPad M3 8 Rollback Package%28BTV-W09 %2CC900B300%2C EMUI5.0%2BAndroid7.0 rollback to EMUI4.1%2BAndroid 6.0%29
The Installtion (force update) gets stuck at 5% and after like 3-5 minutes the tablet will boot up showing the same boot error that can be skipped with pressing powerbutton. I checked sytem and it still showed "android 7 + EMUI 5" but built : BTV-W09C900B300
I think this is the one i "need" to be able to install the "HUAWEI MediaPad M3 8 Firmware %28BTV-W09 %2CC100B006%2C EMUI4.1%2BAndroid 6.0%29"
Problem is regardless which "update.app" i try to force install will get stuck at 5% and give me same error.
Click to expand...
Click to collapse
Also, as far as the rollback, you need to do the first one (the C900 which is just a compatibility fix to allow rollback, previously used by beta testers I believe). Then you need to do the second one, the C100. If it is getting stuck, try downloading it again and be sure you don't have anything else in the /dload directory on either internal or the sd card. I had one on both at one point so maybe that happened to you. The C900 should be very quick but the C100 will slowly progress after 5% all the way around in several minutes.
When you get to updating back to 5.0, you can choose whichever region you want as long as it is a full OTA. C128 is USA and that's what I bought so that's what I picked. That gets you back in the right OTA update channel after that.

Hi guys,
I started as a novice and have learnt the hard way.
Has anyone tried rollback to EMUI 4.1 EU version on a US device (W09) and are there any problems I should be aware of?
I have had the exact same problem shared in this thread and have gone through the pain of finding a solution. My last resort is to rollback to 4.1 and restart the whole process.
@deV14nt: you suggested that when updating back to EMUI 5.0, I can choose the region even if my EMUI4.1 is EU version. How does this work?
Thanks in advance for your help.

HUAWEI P9 LITE VNS-l31 is it possible to go from b414 to b416 with firmware finder?

Hi All,
I'm trying to update the p9 lite VNS-L31C432B414 dual sim to the latest version B416.
The phone is always officially updated, but i tryed all 3 versions from firmware finder, with the *#*# 2846579#*# *
Select Project Menu > Software upgrade > SDcard upgrade method.
But when the phone restarts it begin to update and after a little progress it failed.
The same thing happens when i try it with the firmware finder app from playstore with erecovery, or dns method.
Any help would be appreciated, thanks!
Davidoff80

Davidoff80 said:
Hi All,
I'm trying to update the p9 lite VNS-L31C432B414 dual sim to the latest version B416.
The phone is always officially updated, but i tryed all 3 versions from firmware finder, with the *#*# 2846579#*# *
Select Project Menu > Software upgrade > SDcard upgrade method.
But when the phone restarts it begin to update and after a little progress it failed.
The same thing happens when i try it with the firmware finder app from playstore with erecovery, or dns method.
Any help would be appreciated, thanks!
Davidoff80
Click to expand...
Click to collapse
Firmware Finder
DNS/VPN method should be the best way to try this update.
The other only method that i know is to use Huawei Recovery Updater
but you should unlock the bootloader and flash a custom recovery first.
In the end it will be a bit difficult to re-lock the bootloader, never tried to do such a thing,
but you can keep it unlocked...
Good luck dude.
Cheers

Hi Dadditz,
Thank's for your response.
Last night i have tryed with a extra wifi router to change the dns number but even when the Firmware Finder app giving me the message that the B416 is registered for my phone, when booting in erecovery it installs the B414 FULL package again.
And with in the app proxy and dns method with firmware finder, the system update app from huawei gives me the sign that a update is ready to B416 with the release notes and all but when it starts it shows a checksum error or download fail.
I have registered the IMEI but do you know if it's maybe the problem with that its a dual sim so there a 2 IMEI numbers? or is the first one enough to register?
The tip for unlocking the bootloader i have searched on, but huawei has taking the unlock service down i understand, so the dc-unlocker2client program for 4 euro is the only option i think?
The main reason that i want to try the latest firmware is that people can't hear me good with this phone, i send the phone 2 times for repair and contacted the provider but the signal looks good.
Now i have factory reset the phone for the tenth time, i was thinking maybe the eset virusscanner interferes with the build in huawei/avast scanner but im not sure if that could cause it.
Thanks and have a nice day.

Hi all
I just unroot and unlock BL my phone yesterday. First i make downgrade (rollback 6.0) via dload method. Everything going very smooth and when my phone was version VNS-L31C432B160, then i'll get all newer updates via OTA (Finland), now my phone is B416

Davidoff80 said:
Hi Dadditz,
Thank's for your response.
Last night i have tryed with a extra wifi router to change the dns number but even when the Firmware Finder app giving me the message that the B416 is registered for my phone, when booting in erecovery it installs the B414 FULL package again.
And with in the app proxy and dns method with firmware finder, the system update app from huawei gives me the sign that a update is ready to B416 with the release notes and all but when it starts it shows a checksum error or download fail.
I have registered the IMEI but do you know if it's maybe the problem with that its a dual sim so there a 2 IMEI numbers? or is the first one enough to register?
The tip for unlocking the bootloader i have searched on, but huawei has taking the unlock service down i understand, so the dc-unlocker2client program for 4 euro is the only option i think?
The main reason that i want to try the latest firmware is that people can't hear me good with this phone, i send the phone 2 times for repair and contacted the provider but the signal looks good.
Now i have factory reset the phone for the tenth time, i was thinking maybe the eset virusscanner interferes with the build in huawei/avast scanner but im not sure if that could cause it.
Thanks and have a nice day.
Click to expand...
Click to collapse
Hey dude it's like you somehow downloaded B414 firmware and putted into
the internal memory or the SD card.
Check if you have that files and delete them, then try again with the update.
Don't know about your two IMEI, you have to check by yourself wich one would work...
About unlocking the bootloader, yes it is possible with the tip you wrote (dc-unlocker).
Before attempting to do anything try first with another sim and see if is the same as now
because if nothing changes maybe it's a hardware issue...
As suggested by @oltsuboy it's possible to downgrade to MM and re-upgrade
to N android version, you only need the correct packages..
I'm here to help you...
Have a good day..
Cheers

Hi guys,
I have tryed to downgrade to android 6, and that works, and then i get OTA to B370 and then B380 so i am android 7.0 again.
But now the OTA update find nothing, it stays on B380.
Before when i checked system update with HiSuite it says B414 is the latest official firmware, but now it says B380 is??
As far as i know i used only official updates with this phone, and i have wiped partion and system a lot of times.
And mostly there where 2 sim cards in it, i only put in SD card formatted first for the update.app
So i don't think B414 is floating somewhere, but i don't understand where it went wrong.
It's a non provider linked phone with a sim only abbo from the netherlands, i already asked a new sim card from the provider to test if the voice quality improves but it makes no difference.
I'm gonna wait a little maybe a update comes, when i put the B416 update on the sd card now and do force update VL+ VL- PW. the update fails after ten procent.
Maybe tommorow im gonna look to unlock the phone for 4 euro.
Thanks for the help!
Update: I have tried the DC Unlocker program.
And obtained the bootloader code, but what do do with it now?
Something says i did something wrong, because the options where:
Read unlock codes
Read bootloader code
Lock Bootloader
Erase Huawei ID
But no unlock bootloader, so i did read bootloader and copied the code.

Davidoff80 said:
Hi guys,
I have tryed to downgrade to android 6, and that works, and then i get OTA to B370 and then B380 so i am android 7.0 again.
But now the OTA update find nothing, it stays on B380.
Before when i checked system update with HiSuite it says B414 is the latest official firmware, but now it says B380 is??
As far as i know i used only official updates with this phone, and i have wiped partion and system a lot of times.
And mostly there where 2 sim cards in it, i only put in SD card formatted first for the update.app
So i don't think B414 is floating somewhere, but i don't understand where it went wrong.
It's a non provider linked phone with a sim only abbo from the netherlands, i already asked a new sim card from the provider to test if the voice quality improves but it makes no difference.
I'm gonna wait a little maybe a update comes, when i put the B416 update on the sd card now and do force update VL+ VL- PW. the update fails after ten procent.
Maybe tommorow im gonna look to unlock the phone for 4 euro.
Thanks for the help!
Update: I have tried the DC Unlocker program.
And obtained the bootloader code, but what do do with it now?
Something says i did something wrong, because the options where:
Read unlock codes
Read bootloader code
Lock Bootloader
Erase Huawei ID
But no unlock bootloader, so i did read bootloader and copied the code.
Click to expand...
Click to collapse
Hi dude,
DLOAD aka three button method won't anyway work on android 7 versions...
Sorry did you tried with your brother/sister/friend sim and seen if it's the same behaviour ? ( about the weird quality voice ).
Keep your unlocking code safe and before attempting any unlock re-try to update via Firmware Finder, checking this way...
Obviously turn on and connect with the WIFI...
After installing the app open it and add your variant (VNS-L31C432).
Find the firmware you're looking for (VNS-L31C432B416 FULLOTA-MF 2,2GB) and tap on it.
Now check the availability, register it with IMEI for the update and use the dns change / vpn method.
Once the vpn started, check repeatedly into the stock inbuild updater for a update and the B416 version should come. If will be disponible tap and download your update (should be approssimatively 2,2GB).
When it'll be at 5% pause it for a while and stop the vpn service.
Go back and re-active the download of the B416.
If all will go well you'll have the latest firmware.... :laugh:
Let me know how it went.
Cheers

Hi Dadditz,
No i don't have tryed another sim yet, the provider has said that if i give to more telephone numbers from the same provider they can do a scan for the quality.
So maybe that's something to try.
Later at night there came 3 more updates and the latest is now B414, so i am back on the same build
Yesterday i have unlocked the bootloader, with this guide: https://forum.xda-developers.com/huawei-p9lite/how-to/guide-unlock-bootloader-twrp-root-t3405701
Yes sorry i couldn't wait so i think let's try
When i was at the TWRP part, when i must reboot to recovery mode it stays on the screen that the phone was not safe.
So that part i still want to proceed.
So i rebooted and go to sleep.
I just have tryed your tips, but i see the same behaviour, the download fails, the extra wifi router which i changed the dns to was not more in my network, so i tryed without it.
With my own wifi router at home, they don't allow the change of the DNS, can that be the problem? or if you put a extra wifi router to it it's no problem?
I attached some screenshots, do you see that the buildnumber is displayed 2 times after a row?
I maybe think that's because i tryed to register both the IMEI? so maybe that's a problem?
Sorry i don't know how to attach the screenshot's below.
So i put them in a album called B414 with my profile, i hope you can see them, sorry this is the first forum i post on.
Thanks a have a nice day :good:

Davidoff80 said:
Hi Dadditz,
No i don't have tryed another sim yet, the provider has said that if i give to more telephone numbers from the same provider they can do a scan for the quality.
So maybe that's something to try.
Later at night there came 3 more updates and the latest is now B414, so i am back on the same build
Yesterday i have unlocked the bootloader, with this guide: https://forum.xda-developers.com/huawei-p9lite/how-to/guide-unlock-bootloader-twrp-root-t3405701
Yes sorry i couldn't wait so i think let's try
When i was at the TWRP part, when i must reboot to recovery mode it stays on the screen that the phone was not safe.
So that part i still want to proceed.
So i rebooted and go to sleep.
I just have tryed your tips, but i see the same behaviour, the download fails, the extra wifi router which i changed the dns to was not more in my network, so i tryed without it.
With my own wifi router at home, they don't allow the change of the DNS, can that be the problem? or if you put a extra wifi router to it it's no problem?
I attached some screenshots, do you see that the buildnumber is displayed 2 times after a row?
I maybe think that's because i tryed to register both the IMEI? so maybe that's a problem?
Sorry i don't know how to attach the screenshot's below.
So i put them in a album called B414 with my profile, i hope you can see them, sorry this is the first forum i post on.
Thanks a have a nice day :good:
Click to expand...
Click to collapse
Hey mate,
you're such as educated guy and i really apprecciate that !
Well... i saw inside your profile the B414 album and maybe i found the mistake...
damn ... seems you didn't read carefully what i wrote !!!
Look in previous post, you need the FULLOTA-MF package 2,2gb !!!
not the OTA-MF (incremental) one !!
Repeat again the procedure, register one only IMEI, hope this time
you'll be able to update correctly
Let me/other members know.. :fingers-crossed:
note: if the update will end correctly, it will re-lock the bootloader too.
Cheers

Hi Dadditz,
Thanks i didn't even finished my school so my english is not good, but i hope u understand.
I always tryed to install the full package mf B416 2.2gb but when i was testing it with the extra router it always shows a checksum error or download fail, tonight im gonna try that again, and let you know how it went and describe the steps that i tryed so maybe you can see where it goes wrong.
I also tryed the firmware finder windows version to register the IMEI, so maybe i make a mistake there.
This afternoon i was trying to attempt to proceed with the TWRP installation, but when i was booting with VL+ and power it won't go to recovery mode, on the xda forum i was reading more people with the same problem, the phone stays on booting
But the phone is working now so im glad i can whatsapp and watch netflix, so i will not try to go further with that, and focus on the B416 full update.
Thanks:good:

Davidoff80 said:
Hi Dadditz,
Thanks i didn't even finished my school so my english is not good, but i hope u understand.
I always tryed to install the full package mf B416 2.2gb but when i was testing it with the extra router it always shows a checksum error or download fail, tonight im gonna try that again, and let you know how it went and describe the steps that i tryed so maybe you can see where it goes wrong.
I also tryed the firmware finder windows version to register the IMEI, so maybe i make a mistake there.
Can you describe maybe how i can insert screenshots in a post?
When i try to insert a image in a post it is asking for a link, can i upload pictures at XDA or do i must use another image upload server?
This afternoon i was trying to attempt to proceed with the TWRP installation, but when i was booting with VL+ and power it won't go to recovery mode, on the xda forum i was reading more people with the same problem, the phone stays on booting
But the phone is working now so im glad i can whatsapp and watch netflix, so i will not try to go further with that, and focus on the B416 full update.
Thanks:good:
Click to expand...
Click to collapse
Dude,
sorry if i wrote something that someway hurted you,
english isn't my main language too...
Attachments aren't allowed to junior member, you need to post many times
in order to be authorized.
Let's go to the main problem...
If you want to try to flash the B416 version with the TWRP
you first need the correct TWRP version...
If you followed the link you posted above,
you tried to install the marshmallow version,
that's because it won't boot.
Your device are running android 7 ( nougat ) and you need a working recovery
in order to use Huawei Recovery Updater ( HuRu ) and flash that B416 firmware.
All files ( firmware apart ) you need are present on XDA, so just download and install
what i wrote you here.
Be sure you have installed Hisuite on your PC and it works.
Be sure you have enabled developer options then open it and
disable screen lock, enable oem-unlock and usb-debugging.
HERE to download and install Minimal ADB & Fastboot on your PC.
Connect the device to the PC, make sure PC recognize it allowing permissions if needed.
Then on the PC open a prompt (CMD) with admin rights and type "adb devices".
Below you should see your device as a serial of numbers and characters like
THIS screenshot. If that worked go next step.
Type "adb reboot bootloader" and it will reboot into fastboot/bootloader mode.
Now type "fastboot devices" and you should see your device as a serial of numbers and characters like
the screenshot i posted above except you'll see authorized/unauthorized section.
If your device are now authorized you're ready to go.
Type "fastboot reboot" and it will reboot into system.
HERE the link to download HassanMirza01's 3.1.1-1 EliteTWRP, flah it with fastboot command
( past a copy of TWRP into the adb & fastboot main folder )
( into fastboot mode ( see above ) type "fastboot fash recovery name_of_recovery_you_downloaded.img" )
When finished type "fastboot reboot recovery" or reboot with vol+ and power buttons.
Once you'll have a working TWRP installed reply me here
and i'll indicate the next steps.
note: with CMD prompt write without quotes " "
Cheers

Dadditz said:
Dude,
sorry if i wrote something that someway hurted you,
english isn't my main language too...
Attachments aren't allowed to junior member, you need to post many times
in order to be authorized.
Let's go to the main problem...
If you want to try to flash the B416 version with the TWRP
you first need the correct TWRP version...
If you followed the link you posted above,
you tried to install the marshmallow version,
that's because it won't boot.
Your device are running android 7 ( nougat ) and you need a working recovery
in order to use Huawei Recovery Updater ( HuRu ) and flash that B416 firmware.
All files ( firmware apart ) you need are present on XDA, so just download and install
what i wrote you here.
Be sure you have installed Hisuite on your PC and it works.
Be sure you have enabled developer options then open it and
disable screen lock, enable oem-unlock and usb-debugging.
HERE to download and install Minimal ADB & Fastboot on your PC.
Connect the device to the PC, make sure PC recognize it allowing permissions if needed.
Then on the PC open a prompt (CMD) with admin rights and type "adb devices".
Below you should see your device as a serial of numbers and characters like
THIS screenshot. If that worked go next step.
Type "adb reboot bootloader" and it will reboot into fastboot/bootloader mode.
Now type "fastboot devices" and you should see your device as a serial of numbers and characters like
the screenshot i posted above except you'll see authorized/unauthorized section.
If your device are now authorized you're ready to go.
Type "fastboot reboot" and it will reboot into system.
HERE the link to download HassanMirza01's 3.1.1-1 EliteTWRP, flah it with fastboot command
( past a copy of TWRP into the adb & fastboot main folder )
( into fastboot mode ( see above ) type "fastboot fash recovery name_of_recovery_you_downloaded.img" )
When finished type "fastboot reboot recovery" or reboot with vol+ and power buttons.
Once you'll have a working TWRP installed reply me here
and i'll indicate the next steps.
note: with CMD prompt write without quotes " "
Cheers
Click to expand...
Click to collapse
Hi Dadditz,
No problem mate , i'm new to this phone flashing and was insecure if my english was good enough to communicate on the xda forum.:good:
I was just to let you know that my second try with the second router is maybe succesful for the B416 FULL update part.
I now connected my pc to it and when i changed the DNS i changed the second DNS to 1.2.3.4 and when the firmware app says registered to this ip:......, i took that ip in the second router.
And then boot in to huawei Erecovery and now the B416 2gb is downloading, why the DNS and PROXY in the app only provide the 700mb update all the time even if i registred the 2gb version i don't know.
Maybe the DNS or ip setting had something to do with it, my understanding of network settings is limited.
The download is 42 procent after a hour but it's a old wifirouter.
So i was now about to ask if it's succeed i could undo the TWRP and lock the bootloader and just read your message, so i don't know if it hurt's anything if i let the update install
I wait and see :good:
edit: i did see you message that the update will relock the bootloader but i was asking because i was not sure because i messed up the TWRP part. edit

The update to B416 was succesfull! :good:
I haven't see the warning that the device isn't save when booting and Netflix appears in Google Play store again, so i guess i don't have do anything more to disable TWRP and locking the bootloader
Thanks for the help Dadditz and sorry that i was impatient to wait on your message, in the future i ask and wait patiently, but hey i didn't bricked the phone
If the voice quality improves i now must test, and the next step is to ask a network scan from the provider on 2 more telephone number in my town.
Thanks :good:

Davidoff80 said:
The update to B416 was succesfull! :good:
I haven't see the warning that the device isn't save when booting and Netflix appears in Google Play store again, so i guess i don't have do anything more to disable TWRP and locking the bootloader
Thanks for the help Dadditz and sorry that i was impatient to wait on your message, in the future i ask and wait patiently, but hey i didn't bricked the phone
If the voice quality improves i now must test, and the next step is to ask a network scan from the provider on 2 more telephone number in my town.
Thanks :good:
Click to expand...
Click to collapse
I suggested, you did. :good:
All is well that ends well.
If you had TWRP recovery installed,
you wouldn't be able to update with Firmware Finder,
as you would have needed stock recovery ...
And yes now the device is 100% stock.
Thanks for your feedback dude.
All the best