yashsingh1/xdaforums huggingface dataset:
[Huawei P9 Questions & Answers] darrr1:
I think it's one way and finally on nougat oem unlock is unnactvie with open bootloader

Wysłane z mojego EVA-L09 przy użyciu Tapatalka
[Huawei P9 Questions & Answers] jonezie:
I'll just use DC Unlocker and unlock the FRP first and see how it goes. :rolleyes:
[Huawei P9 Questions & Answers] lostunsunghero:
As I already explained its there to prevent you from soft bricking your phone. It's a nougat feature. All you need to do is go back to stock nougat Inc recovery and boot image and relock the bootloader using fastboot commands.

Reboot your phone and you will see that the option in dev settings is now a toggle switch that you can move. If you want to unlock the bootloader again simply switch it, but when you do that you will see the switch is greyed out again.

THIS OPTION IS ALWAYS GREYED OUT WHEN BOOTLOADER IS UNLOCKED IN NOUGAT.

I'm not sure how this thread has gone on 3 pages when I gave you the answer in the very first comment. I thought this was widely known.
[Huawei P9 Questions & Answers] darrr1:
Strange is switch in position off.

Wysłane z mojego EVA-L09 przy użyciu Tapatalka
[Huawei P9 Questions & Answers] jonezie:
I accidentally clicked "Restore default settings" in the Developer Options that's why it's in the off position. Toggle switch still greyed out.
[Huawei P9 Questions & Answers] jonezie:
My phone was rooted when it was android M when I updated to N. It had TWRP 3.0.3-0 and that's what I am stuck with now after the N update. I can't flash any root.zip files. Always showing errors. I flashed TWRP 3.1.0-1.img using twrp and it didn't work. Now I can't go into twrp recovery mode anymore. How can I go back to stock nougat Inc recovery? :confused:
[Huawei P9 Questions & Answers] lostunsunghero:
What do you mean by "didn't work", were there any errors thrown up? The Android MM twrp will NOT work with Nougat. How did you try to flash the new recovery? You should be using adb tools and NOT twrp to flash new recovery.

The only way I know how to go back to full stock nougat is by using the rollback package to get back to MM and then use OTA updates to get back to Nougat.
[Huawei P9 Questions & Answers] jonezie:
Why is it that I can't perform any fastboot commands? There's always errors (command not allowed). I'm trying to relock the bootloader.
[Huawei P9 Questions & Answers] lostunsunghero:
Tell me step by step exactly what you are doing and what state your phone is in while you are doing. Let me know if it differs from what i'm about to tell you to do.

1. connect phone via usb make sure you are booted into the system.

2. turn on usb debugging in developer options

3. double check its recognised on your pc by using "adb devices"

4. if all is good you should see your device in the command window.

5. type "adb reboot bootloader" (phone should now have a white screen with android logo)

6. type "fastboot oem lock"

what message are you getting now? If it's still command not recognised are you sure you have fastboot in the same folder on your pc as adb tools?
[Huawei P9 Questions & Answers] jonezie:
I have fastboot in the same folder as adb tools. Followed steps 1-6 and this is the error is was talking about.
[Huawei P9 Questions & Answers] lostunsunghero:
The problem you have is you are using srk tools. This is only for Android 6 and does not work on android 7. Have you tried my previous steps launching directly from command line in windows?
[Huawei P9 Questions & Answers] jonezie:
I already tried your previous steps launching directly from command line in windows. I still end up with the same error.
[Huawei P9 Questions & Answers] lostunsunghero:
Weird, this suggests that your bootloader is locked. Quick question, when you cold boot your device do you get the warning message that the device is unlocked and cannot be trusted? This is now really strange behaviour if that happens but the option in developer options is set to "off" and greyed out.

How did you originally unlock the bootloader, was it with dc unlock or official method?
[Huawei P9 Questions & Answers] jonezie:
It is very weird. I do get the warning message every time I cold boot my device (Your device is unlocked and can't be trusted).

I originally unlocked the bootloader when it was still on marshmallows using the official method.
[Huawei P9 Questions & Answers] darrr1:
I supose when you unlocked bootloader in MM after factory reset you didn't slide oem unlock to ON.

Wysłane z mojego EVA-L09 przy użyciu Tapatalka
[Huawei P9 Questions & Answers] jonezie:
I guess many people are facing this problem also with Nougat. OEM unlocking toggle is greyed out. This is making it difficult to use fastboot commands on cmd prompt. Any ideas on how to relock it? "fastboot oem lock" doesn't seem to work since I can't perform any commands now in fastboot mode. :(
[Huawei P9 Questions & Answers] darrr1:
Rollback to MM and switch on before update to N only

Wysłane z mojego EVA-L09 przy użyciu Tapatalka
[Huawei P9 Questions & Answers] jonezie:
Okay I'll do so :svetius:
[Huawei P9 Questions & Answers] jonezie:
By the way, I just spotted B383 in the firmware finder. Should I update or not? Will it still be the same as rolling back to MM and updating back to B378?
[Huawei P9 Questions & Answers] Munezero:
I have exactly the same problem.. But I'm not english, and it's my first for root my phone.. :crying:

Please what mean "Rollback to MM and switch on before update to N only", how to do that?

(I don't understand MM and N, and I don't know how "Rollback"

:( )

Please help me, thanks you very much in advance!
[Huawei P9 Questions & Answers] xtcislove:
FInd the rollback package in my signature

instructions on how to use it are in the pdf file

download b136 update from my signature

use it the same way u used the rollback package (extract all files (update.app etc ) on a folder called dload on your sdcard.

Boot your phone

Disable oem unlock in developer settings

OTA update to B182

upgrade to B361 using this guide: https://xdaforums.com/showpost.php?p=70594380&postcount=2

Update to B378 via OTA

enable oem unlock in developer settings

unlock bootloader (use the first link in my signature for easy bootloader unlock)
[Huawei P9 Questions & Answers] Munezero:
Hi! Thanks for your answer! :victory:

But I have a problem :(,

When I try to boot with this update the phone sends me this message: "Software install failed! Incompatibility with current version. Please dowload the correct update package." (I tried three times)

Should I try with the file provided with the rollback package?

Please I need your help, thanks for what you have and what you will do :angel:
[Huawei P9 Questions & Answers] xtcislove:
I already told you... :D

Use this guide: https://xdaforums.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523

Basically:

Flash rollback package via dload

Flash B136 via dload
[Huawei P9 Questions & Answers] kazshizka:
Hey, I have the same problem but I have a eva L19. would you happen to have the files for rollback? or will the same files do?
[Huawei P9 Questions & Answers] Munezero:
I am so sorry, I had not well understood.. :(

Thank you with all my heart I finally succeeded! :victory:
[Android Q&A, Help & Troubleshooting] lepidas:
Hi to all,

I need to know if there is a way to check a custom ROM I installed on my phone is safe to use, safe in terms of privacy and security.

Long story:

I have a Meizu mx4 arale(Ubuntu edition), found an Unofficial CM13 for this phone at emmaus.pro something website. I managed to flash to my Meizu but still I don't use it since it's not found at XDA forum (I say I can trust). So I was wondering how can I check this ROM if it's safe to use.

Thanx for any replies.
[Android Q&A, Help & Troubleshooting] zelendel:
Only way is if they post their source code. Which they are not required to do and even if they do there is no sure fire way to tell. Custom roms are a huge trust thing.
[Android Q&A, Help & Troubleshooting] lepidas:
What about LOS, are the ROMS (is it called binaries?) checked before uploading to be available for downloading?
[Android Q&A, Help & Troubleshooting] zelendel:
No more then any other custom rom really.
[Huawei P9 Questions & Answers] KevinCTR:
Buenas y saludos desde Costa Rica...

Mi caso, intente actualizar mi dispositivo huawei p9 L09 del EMUI 4.1. y android 6.0 a la version del emui 5.0 y android 7.0. libere el bootloader y todo normal. el problema surge que no me percate que la room no tenia entrada de texto por letras solo por voz. A la hora de hacer el hard reset me pide la confirmacion de la cuenta y por consecuencia el ingreso de texto por voz no admite ni simbolos ni poner contraseñas. Existe alguna forma de volver al android anterior o volver a instalar otra room 7.0 con la funcion de entrada por texto? gracias de antemano
[Huawei P9 Questions & Answers] trettet:
Please use English when posting, XDA is an English language forum. Thanks.?
[Huawei P9 Questions & Answers] KevinCTR:
I use google translate. sorry :crying:

Good and greetings from Costa Rica ...

In my case, try upgrading my huawei p9 L09 device from EMUI 4.1. And android 6.0 to the version of emui 5.0 and android 7.0. Free the bootloader and all normal. The problem arises that I do not realize that the new room did not have text input by letters only by voice. At the time of doing the hard reset it asks me for the confirmation of the account and consequently the entry of text by voice does not admit neither symbols nor put passwords. Is there any way to go back to the previous android or reinstall another 7.0 room with the text entry function?
[Huawei P9 Questions & Answers] aceclift:
if you have a bluetooth keyboard then connect that to your phone and then you can input text via the physical bluetooth keyboard
[Huawei P9 Questions & Answers] icaka20011:
Or plug in usb keyboard.
[Huawei P9 Questions & Answers] KevinCTR:
At this time the phone does not go beyond the verification part of account, you could not activate the bluetooth of the same. Connecting the keyboard via OTG will recognize it? There will be no other way :crying:
[Huawei P9 Questions & Answers] KevinCTR:
The problem is that I can not access the start as it is with a factory formatting and asks me the initial: language, region, wifi connection, and at the time of putting the account does not allow it by voice input
[Huawei P9 Questions & Answers] aceclift:
Yes, connecting a keyboard via OTG would also work same as the bluetooth method

You've mis-understood what this person has told you. Plugging in a USB keyboard is the exact same as connecting a keyboard via OTG. He just didn't use the term "OTG (On The Go) ".
[Huawei P9 Questions & Answers] KevinCTR:
I explained how my phone is at this moment:

- The ROM "L09 B383 (update.app)" was installed and the ROM complement the "update_data_full_hw_eu.zip" ... In this part the phone did not give any installation error in both files

-At the time of connecting it to the pc the ADB does not allow to install the TWRP the file "twrp-3.1.0-1-eva.img"

-In the moment of connecting the phone to the PC in fastboot mode to verify that it is unlocked or try to unlock again (here the phone screen indicates "phone: unlock" and "FRP: lock")

- the ADB reads the device correctly, if it puts the serial that indicates that it is in fastboot mode but indicates this error when installing the twrp mentioned with this command "fastboot flash recovery twrp-3.1.0-1.eva.img "The ADB mentions this error:" FALIED (remote: Comand not allowed) "

- I continue without installing the twrp and the phone starts normal requesting the language, region, wifi connection, and when it asks for the verification of the account of google returned to the problem of that it does not have entrance of text by letters.

** I will try to buy an OTG converter that works

** with this converter should without error read a keyboard either USB or bluettoth right?

** I would appreciate it if you explain to me if I have been wrong in some way
[Samsung Galaxy S7 Edge Questions and Answers] Naphilli:
I have a samsung galaxy s7 edge, ihave a grandfathered plan with unlimited data I have always used my unlimited data to watch tv , foxfi is on my phone an that's how I get to use it, well last week I let my phone update not thinking about it and now everytime I try to use it it says my carrier will not allow WiFi on android 7.0, can anyone tell me what I can do to help me bypass, I pay for unlimited data on my plan and please don't tell me to get a hotspot , I don't wanna pay twice to Verizon on using my data, I'm just asking if someone knows or has had this same issue, not sure if I need to root my phone or try to go back to download android 6.0, thank you & please for any help I really to appreciate the help
[Galaxy S 4 Q&A, Help & Troubleshooting] Sty15:
I managed to rotate my s4 but not for the moment without downloading the root of the towel then supersu until the hay well I have root I gave in deactivating knox after that to think that everything was well.

Then try to install the recovery by odin and by the official application of twrp and by one that is called flashify and therefore install recovery the

Home [224,1440] secure check fail: recovery This error always appears when I install the rooteo and the recovery

When I enter into recovery mode after having installed it SAFE FALSE :confused:: Kernel

"System software not found by AT% T found on your phone"

My question is if you disable knox and delete the knox application and I am also root user and check it I can do for the recovery to work I need it to upgrade from android the cell works me normal but I want to update it, I do not know if it serves the width of Terminal base band in MDL.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
AT&T devices have to use SafeTrap Recovery.
[Galaxy S 4 Q&A, Help & Troubleshooting] audit13:
Verify the model number in download mode. If it is the sgh-i337, sounds like the phone had a locked bootloader which means cwm or twrp cannot be installed.
[OnePlus 3 Questions & Answers] SivaMaxwell:
Hey boss., after flashing open beta 12, the phone started hanging now and then. I tried to contact oneplus forums and they asked me to send the log files. Since they took too long to respond, I went to oneplus service centre. They flashed my phone with old oxygen os and the phone didn't start. It went into bootloop

Then I asked them, they said motherboard is corrupted. I left the place and I requested online customer support from oneplus. They too flshed and concluded the same. Can I know whether flashing/sideloading openbeta created this issue? If so, can you provide me support to avail the warranty on the phone? or recover it via any other method or process?

Please respond as soon as possible. My communication with the world has become limited after this issue. I hope there is some sort of support.

Also note that, the phone can boot into fastboot mode, but bootloader is locked. It can boot into recovery. I tried wiping everything, but the phone is not rebooting.

When I start the phone, it stucks in the boot logo and after a while, the screen becomes blank and a white color notification LED is glowing.

Kindly help me.
[OnePlus 3 Questions & Answers] borisbwhacking:
i had the same issue last week after updating to 13..and i tried to flash the black theme..it went black..i had nothing....it was like it was bricked... here's how after many failed attempt's..i had to clean out all files including backups.wipe data i had to wipe system i had to clean out all previous files.from TWRP recovery.then i had to download the latest software release then put the zip file in my phone storage not in the download file ..then i had to flash stock recovery.then install the new system..and i made the mistake of trying to use some of my app backups like for one estrong file ..all of them were corrupt.so start fresh.
[OnePlus 3 Questions & Answers] TimSchumi:
You might try this unbricking method:

https://forums.oneplus.net/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/

Though your device isn't hard-bricked, this would reset your device to the absolute factory settings (watch out, your data will be erased) on an older OxygenOS version.

I would recommend the 2nd Method, as it restores all partitions to factory settings.

I might also know where your issue came from:

Though you can flash the Open Beta (or any other ZIP from OnePlus) through the Stock Recovery, OnePlus states that you need to be on an unlocked bootloader for not bricking your device.
[OnePlus 3 Questions & Answers] SivaMaxwell:
It worked, but no network connection or wifi connection!

Is there a way to bring them back?
[OnePlus 3 Questions & Answers] TimSchumi:
You might try to unlock your bootloader (There are giudes to do this) and flash a OxygenOS package from oneplus.net through the stock recovery, to ensure the firmware is OK (Do a factory reset from recovery!). I don't know if the Unbrick Tool only restores corrupted partitions or all. It might have installed the wrong system over your previously installed firmware if only corrupted partitions are restored. Keep the bootloader unlocked to be on the safe side (After some time you will be able to just ignore the boot message and you have better access to fastboot and recovery)!

Also, GG to OnePlus for (fake) Motherboard corruption!

About warranty:

Warranty should be ok as long as you won't do hardware modifications (I think).

Bootloader unlocking is definitely safe
[OnePlus 3 Questions & Answers] SivaMaxwell:
I tried to update to recent oxygen os. Then the original proble started again.

It is not booting up, again..
[OnePlus 3 Questions & Answers] TimSchumi:
No, reflash the OxygenOS package of the same Version that is installed by the Unbrick Tool (If you can still get itfrom oneplus.net) and then check if Network does work. Also, check your IMEI.
[OnePlus 3 Questions & Answers] m4manusraj:
I think you might have a corrupted EFS partition. That's y you don't have a working network. Check whether your device show a IMEI under about phone.
[OnePlus 3 Questions & Answers] TimSchumi:
EFS doesn't have an effect on WiFi.

That's why I think that it is a firmware issue
[OnePlus 3 Questions & Answers] SivaMaxwell:
I think, I have solved it guys. I'll let you know once completely under control
[OnePlus 3 Questions & Answers] SivaMaxwell:
So, Thank you very much for your support. With this little support from you and my previous Foresightedness helped me restore the phone.

So just in case if any one else faces the same or similar problem, this is the process:

STEP0: If there is any partition corrupted, the device don't boot properly. And, The customer care/ sevice centre guys state it as motherboard problem. Donot Panic. Always take TWRP backup whenever you change your ROM. This Backup helps you to restore whenever you're in trouble. In this particular case, ESF backup is required. So, take a complete backup (everything) in TWRP, it saves your ass.. keep the backup in your PC or any safe Storage (the complete TWRP Folder which is in Internal Memory) before flashing any custom ROM.

Step1: Follow method2 in this guide: https://forums.oneplus.net/threads/g...plus-3.452634/

Step2: if everything is alright, its done. Otherwise, The device boots up with some missing features and details. At this time, you have to unlock the bootloader. See The forum to know how to do it. Basic searching can give you the method.

If you can transfer the TWRP folder from PC to Phone, it's good. But the phone boots itself because of missing firmware. Even Bluetooth couldn;'t be used.

In my particular case, I couldnot copy from PC to mobile or viceversa. So, you cannot copy back your TWRP folder in this situation.

So, Unlock bootloader. Then reboot to system (without doing anything)

Step3: Reboot to bootloader and flash TWRP 3-0.2 version only. otherwise device will be encrypted.

Step4: download Ressurection Remix ROM version : ResurrectionRemix-M-v5.7.4-20161113-PUBLIC-ex-oneplus3 or you can experiment with any other custom ROM but only android 6 (*Marshmallow). Also make sure that you have universal adb drivers. install them if not (search in the forums.)

Step5: goto TWRP recovery, in this, goto wipe option. Drag the swipe to wipe button here. (normal wipe).

Step6: Now, in advanced options, select adb sideload option and select the two wipes in the next menu. Start ADB sideload in the TWRP.

Step7: Now, Start the adb sideloading the custom ROM from your PC. You donot Require Gapps for transferring a file. So donot flash Gapps.

Step8: After the sideload is complete, reboot into system. Now you can transfer files between phone and PC. Now, Copy the Complete TWRP folder into the internal memory. A pop-up asks for merging the folders. Allow the merging, even if you have another TWRP backup there. They don't overlap.

Step9: Now, Boot into TWRP and restore completely. The phone boots up properly, this time. Everything works as expected. every mysterious problem is solved. Now you will get update request if you are on previous version of OOS.

Last but not Least: Please do not use any app recovery tools. they may cause issues while following the above steps

Thank to every XDA member, helping us save the time and money we spend at service center.
[OnePlus 3 Questions & Answers] SivaMaxwell:
Yes, boss. The EFS is corrupted. But, thanks to TWRP, it also has the option to backup EFS, modem. SO, I used my old backup from Jan2017 to restore it back.

But, TO place TWRP back in phone, the original OOS3.1.2, even after reflashing didn't support. I thought for a while and flashed the All loved RR (MM) . THen, it gave me the scope to t/f the folder to internal memory.

Now, I restored the EFS , Modem, sytem with data. and hell yea!! the phone is back to life.

Complete Backup, Atleast once for 3 months saves your ass..
[OnePlus 3 Questions & Answers] m4manusraj:
I am glad it helped. That's the power of Xda.
[OnePlus 3 Questions & Answers] rigo_0217:
My OP3 is stuck on the boot animation only while booting up Oxygen OS. At first I thought it was bricked but as I proceeded I found out that it isn't and i'm able to boot other OS on it. I've had Resurrection Remix which I had no problems flashing whatsoever. But I'm having this problem with Oxygen OS. Has anyone experienced this? What do I do? Please help.