yashsingh1/xdaforums huggingface dataset:
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
Sometimes you have to set them manually, if they don't 'take' automatically. Which ones are you having issues with?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] NeoXTC:
I think possibly library issues as well. Got a fileio exception from one of the app, and another app, vanced manager, keeps on getting "download" error. Can get log for the app with fileio if that would help?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
Logcats are frequently helpful to the developer.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] toystory2000:
After install root (Magsik), install from unknown sources cannot turn on, do anyone have same problem thank for all,
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hello !

There is a new Update Of LOS 17.1 into OP !

Changelog:

new security patch : May 5, 2021

minor kernel updates & fixes

fixes some graphics composer issues

version stable enough for daily use
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Deleted ***
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
As a test of compatibility and speed, I generally run Geekbench 5 after each new ROM version installation. Today's run went fine, 348 Single Core, 1281 Multi Core which is pretty consistent with past performances.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
Thank you for the update.

If it is possible, could you please tell me the hash value?

Sincerely
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
SHA1(LineageOS-17.1-BTV_2021-05-13.zip)= 80a5bf359f7ed5de29f2e026f44c41e4251aeaed

MD5(LineageOS-17.1-BTV_2021-05-13.zip)= add47684c78dd71671d3b26740eaa581
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
BTV-L0J, Dirty flash, No boot...

I tried a clean install and it booted.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tensux:
BTV-W09, dirty flash, no problems. thanks so much for your work on this. i own about 6 tablets. most newer than this one, but i use this one the most
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
BTV-L0J, Dirty flash not boot, but I was easily able to recover it.

The method​

Back up the data with TWRP.

Wipe Dalvik cache, Cache, Data, System, and Vendor.

Flash the latest ROM and Gapps. And boot system.

Go to the home screen without internet connection and without logging in to Google.

Restore the Data with TWRP.

For Magisk users​

Back up your data with TWRP.

Wipe the Dalvik cache, Cache, Data, System, and Vendor.

Flash the latest ROM and Gapps. And flash Magisk.zip, boot system.

Go to the home screen without connecting to the Internet and without logging in to Google.

Install Magisk.apk. If you used Xposed, install it too.

Restore the Data with TWRP.

Finish. No need to register your Device.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Joelintw:
connected to BT earphone and always crash, google play always pop up "Device is not Play Protect certified", rolled back to 15.1, btw, I did clean flash, wipe all data and did factory reset.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Thank you very much James Buonopane for your donation !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tensux:
very welcome
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Bata272:
Hello Surdu_petru,

i am an owner of the Media Pad 8.4 BTV-W09 - Android 7 Stock ROM. I am very happy to see, that it is possible to update these to Android 10 (LOS 17.1) . My Tablet is not rootet - and i dont know how can i easly flash it to your new ROM 17.1 . Can you tould me a smart , easy instruction - so step by step ? I have already found your Rom from Version "LineageOS-17.1-BTV_2021-03-19" . is it the latest ? Also i have tried to unlock my Tablet with the DCUnlocker2 - but there is no way to find my Pad automaticly.

For many years i flashed my Samsung handy with help from this board, but now i am searching for a step by step instruction. Thanks a lot,

Oliver
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, take a look here, thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] ralawa:
Thank you Surdu,

This release is excellent. Vanced Manager works well again. Reddit videos seem to work again. I also had an issue with Arte application which didn't show thumbails. It works now.

I don't know yet if I still have issue with Wifi which sometimes disconnects for unknown reason. I didn't have this issue with the stock ROM.

Now, I will try to change the battery to increase again my tablet lifetime.

Thank you again Surdu.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] xw0lf:
what things still not work, besides camera?

Is it even possible to make the camera work or should we just forget camera when it comes to android 10 on this tablet?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
@surdu_petru Did you build the rom? I'm trying to get into rom building but i just don't get it. How did anyone get a real personal customized rom when they just hit 4 buttons and wait until the "building process" is done? I mean how can anyone customize a rom in that way? Am i just dumb? :O
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please believe me I got bored and tired every time I tried to fix the camera on Android 10 ... somehow I'm very close to find a fix but always I have the same issue ... "media.camera" not started , also "dumpsys | grep 'media.camera' return only "media.camera.proxy" and not the both services ( 'media.camera' & 'media.camera.proxy' ) as would have been normal ...for moment we can forget camera on Android 10 as I have no clue how I can fix this issue !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
btv:/ # dumpsys | grep 'media.camera'

media.camera

media.camera.proxy

Can't find service: gsiservice

Can't find service: idmap

DUMP OF SERVICE media.camera:

--------- 0.001s was the duration of dumpsys media.camera, ending at: 2021-05-17 15:51:04

DUMP OF SERVICE media.camera.proxy:

--------- 0.001s was the duration of dumpsys media.camera.proxy, ending at: 2021-05-17 15:51:04

Could this help you?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
You take this dumpsys from LOS 15.1 where camera it's working, right ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
No, it's this version from here

17.1. I just installed the google camera app.

Buildnumber is lineage_btv_userdebug 10 QQ3A.200805.001 eng.surdu.20210513.092902
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I'm sorry, but currently I can't apply the same stuff like on LOS 15.1 !

The icon labels on landscape mode are disabled by default in LOS 17.1, you need only to enable them on "Home settings" -> "Show icon labels in landscape mode" !

You can also customize your dimensions/numbers of icons per pages like you want, by edit the number of "Smallest width" under Developer options !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
@earlg100, thank you very much ... it's working !

What I did :

registered my device

wait about 5~10 minutes

reboot device

wait about 5~10 minutes

open PlayStore, login and this time successfully open PlayStore

reboot device again to move away the annoying notification
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] sergio_sant:
Great to see LOS 17.1 for this device. Since I need my tablet for work, I'm sticking to 15.1 until this becomes more stable.

Just to know, do gesture navigation work with this rom? That'd be awesome.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] NeoXTC:
Hi,

Do I use the TWRP instructions from [TWRP] [ TWRP 3.2.0-0/3.3.1-0 For Huawei MediaPad M3 Lite 8/10 ] for my mediapad M3 (BTV-DL09) but with just your update TWRP 3.3.1.0 in your OP? Just know that the thread is for the M3 Lite so unsure if will work for the M3
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
There's two different devices of M3 : M3 Lite based Qualcomm Snapdragon and M3 8.4 based Kirin 950.

So you need to install TWRP and LineageOS appropriate to your device .

Yes, it's working well !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] orangpelupa:
Whoa! Whoa! You are a wizard!

I will test it when adoptable storage and audio jack works. I plan to continue using the same adoptable storage from android 7 by transferring the keys haha.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hi !

Fingerprint sensor fixer right now on Android 10 LOS 17.1 !

EDIT :

Yes, audio jack fixed as well on LOS 17.1 !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] martymcbro:
Great too see so good progress on the ROM! Keep going!

So are Google Play Services and the Play Store working out of the box now if I flash the ROM or do I still have to get some ID and register it with Google myself? If it's not working out of the box yet, is it going to work in the future or is it technically not possible?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, you still need to register your device to enable Google Play Services. I have no clue why its happen on Android 10, and it's not happened on Oreo or Pie as my vendor blobs are almost identical for all three versions of Android !

As you can see it also something new for me, so I don't have an adequate answer to your question.

Most likely we'll need to register our device whenever we perform a clean/reset of data partition !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
one thing to be careful of, it looks like there is a limit of 100 device registrations per Google account. https://www.androidpolice.com/2018/...ertified-devices-can-register-exemption-roms/
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
As soon as you decide to switch to LOS 17.1, you only need one activation because a new update does not require the complete erase of the partition /data in TWRP - you can perform a dirty flash of a new update whenever this is dispo !

EDIT:

I didn't tried, but as a workaround I guess that we can backup data into TWRP after GApps was registered, and restored later, after you switched again to LOS 17.1 ... if in the meantime you want to test another ROM or even go back to stock Huawei Firmware EMUI.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Good News !

I finally managed to fix micro SD format issues on LOS 17.1 Android 10, starting with the next update you can format and use your external storage ( microSD) like you want without any issues !

Unfortunately, LOS 15.1 will not benefit from this fix, because so far it seems that only 3 users still use this version of Android, ( and in this conditions there will be no future update of LOS 15.1 ) - I like to remmeber you that I already stated clear here under what conditions LOS 15.1 will be updated after LOS 17.1 will be released !

Thank you very much for your attention !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] daser4berlin:
How about battery life? I was running your latest version and battery was not that good?

Maybe after 2 cycles of charging will it normalize? I was to fast by going back to Los 15..
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
This is excellent news! I have been TWRP backup/restoring 15.1 between tests of 16 and 17.1, I will be very glad to use 17.1 only!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] earlg100:
Good advise. But it's been changed a while ago. There is NO limit anymore
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] pranshuTG:
i have a question. in stock rom when you are in a call and play sounds, the sound quality sucks.

does sound quality sound better while in calls on this rom?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
That sounds like it would be fun to try, and might also save some time when installing a new version.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Ok, now I guess we don't need to backup anything as 100 limited registrations was removed !

Please, install LOS 15.1 to check the sound quality like you want ... and after that, please let us to know, thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] sergio_sant:
I decided to switch to LOS 17.1. It's working pretty well! I hope we get the update with fingreprint sensor soon :)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Next update will add a huge improvement like : fingerprint sensor, audio jack fixed, fix for microSD card formated as internal storage or portable, kernel updated to android linux kernel 4.4.130 and more ... now the next update is in testing, I hope to release it tomorrow !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Ok, but this build does not contain any camera blobs ... as soon as I'll add camera blobs, "media.camera" will not be available under dumpsys ....
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
That's a thing i can't tell. Like i said, the building process of a custom rom is really confusing for me.

I have no idea how anybody can add custom stuff.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heiko-soft:
Hi Google play always pop up "Device is not Play Protect certified", rolled back to 15.1, btw, I did clean flash, wipe all data and did factory reset.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Ok, and why you didn't tried to register your device on Play Store ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] thunderz1:
Thanks again @surdu_petru!

Latest build is working great after a dirty flash. Also fixed parsec which is a great app to remote desktop and play games. Cool.

Curious if anyone has tried using a USB webcam for video calls on LineageOS 17.1?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
@surdu_petru

I will always be eternally grateful to you for working on this tablet.

I never expected to be able to use it so up-to-date and in the way that it works: like silk.

Minor issues like using the camera do not interfere with the experience. Who takes photos with the tablet camera?

Greetings from Costa Rica.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
Is there any solution to start session in MicroG of Youtube Vanced?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
I've been having a problem of Chrome freezing frequently since March or April. Once it freezes, it can be released by going to the home screen.

This problem is not resolved in the latest build and also occurs even after re-installing Chrome.

This problem also occurs in Chromium browsers such as Vivaldi, but not Firefox, so I suspect that the problem is not caused by the ROM, but by Webview.

Does anyone else have the same problem?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
Chrome I rarely use it but I do use Brave and I haven't noticed any usage problems. I think Brave is also built on Chromium.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
A workaround I found for MicroG Vanced login issues is to use a modified YouTube APK on HappyMod. It is working 100% so far.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
Thank you.

Perhaps I will have to start from scratch.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Spudtater:
Anyone have trouble accessing filesharesite.com for latest 5.13 build? I keep getting an error that cannot access. Might be firewall issue for me, where is site located?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
It still works for me !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
Still working for me as well.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Spudtater:
Thanks to both of you. It was a firewall issue. Dirty flash, successful!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hi !

In a few days I'll release a new update with some improvements & fixes :

- new security patch

- new kernel up to date 4.4.268

- fix screenrecorder

-fix High touch sensitivity
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heiko-soft:
Hi

There is still a cam fix ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Grander77:
with the current update i can finally play games again, the error with the write authorization on the external memory is gone (post 289) (y)

Thank you very much for the updates and further development! 👏
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] god123456:
i'm on 13/5 btv w09 wifi version,bluetooth keep restart when connect headset
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I think it depends on the headphones - fortunately for me it works
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
Hi ,

I have a question. I have been working a while with Los 16.0 and when I install LOS 17.1 or 16.0 on my BTV-DL09, it wil operate correctly, But there is a problem with the trust of the unit.

At startup the message shows: your machine has been unlocked and can not be trusted. Futhermore the Bank app does not work properly and say so by installation ,The wifi is switched of on random times, Now you could say the system is unstable. There are more apps that don't start up or shut down with a message : could not open the app with this device etc.

Have I missed something or made a mistake or is this te consequence of installing LOS ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
This warning is normal and is due to the fact that you have unlocked the bootloader !

You can try to make a clean install ( wipe all on advanced wipe into twrp - apart : Micro SD card & Internal Storage ) - then install LOS 17.1 & GApps !

Good luck !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
Thanks a lot for your quick reply. I will give it a try, but in time , I just put everything back to standard, which is a lot of work for me.

and te fact that you say "You can try" doesn't give me any sententie that the bank apps will work again .

But thank you for your efforts.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
That's right - this is a custom rom and not a stock firmware, so there is no guarantee !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] soicon11:
Thank you bro. I hope you will update this rom 😁😁😁
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, I'll update for a few years 😊
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
I 'd like to install this ROM on my btv-w09 that is now on Android 6 MM. Could successfully use DCunlocker to unlock the bootloader and successfully flash twrp-3.3.1-1. But thereafter I couldn't reboot into twrp, neither with "adb reboot recovery" nor by pressing Power+VolUp simultaneously. In some cases the original Huawei recovery would be started, in other cases the system update process, which then installs the MM system from the dload directory on my external SD card. Why can't I reboot into twrp?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, take a look into OP at this line :
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
Yes I know: Nougat ist required. But so far I am unable to update to Nougat unfortunately. My MM doesn't find any updates, and attempts to download the Nougat update from the Huawei update servers only yields a message "Error occured". Hisuite on Windows says the Software on my device is too old and cannot bei updated. If I Install an older release of Hisuite it says my system is up to date and needs not to be updated. So how Shall I install Nougat?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
@lord_donut , thank you very much for your donation 🤗
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
I understand, and I don't care about guarantee. I need the phone to do the bank-app etc. Is there a possibility to lock the bootloader after the custom rom is loaded? A kind of 'fool' the system? :)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please check older posts here or on LOS 15.1 thread, I remember that a few users managed to fix bank-app with magisk or something like this, unfortunately I don't remember exactly and where was posted.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
You should check on Google or here on xda about stock EMUI Android Nougat ... It's impossible to not find something useful.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
Thank you(y)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
It might be stupid of me, but what do you mean with " ït is into OP"
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tensux:
OP = original post, as in the very first post of this thread
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heybrouwer:
Thanks a lot, now I get it
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
The official Huawei stock rom update server offers me only a EMUI4.1 rom for Mediapad M3. Fortunately I have found a Nougat update package from January on my external SD card and so I am back on Nougat now.

But now I hesitate to install custom roms on my M3, since the maintainer of the magisk rooting software warns that Huawei devices are not supported: https://topjohnwu.github.io/Magisk/install.html .
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Of course, you are free to do all what you want with your device.

I guess you should read more posts from this thread, we all use magisk here without any problem !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
That's certainly true for the older releases of magisk, but not for the most recent and future releases. And since the special instructions for Huawei devices have been removed, I suppose it will be hardly possible for new users, who don't have those instructions, to install magisk.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Why we should care about future releases of magisk ? We have Android 10 and magisk it's working well - that's all that matters !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
But how shall I install magisk for Android 10 if the present release doesn't support Huawei devices and the Huawei-specific instructions for older releases have been removed?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
You can still download the older release of magisk . You don't need instructions to install as it's very easy . Install the app , and patch boot.img in order to flash it via TWRP or fastboot.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
Many thanks, that sounds encouraging!

I have now tried to flash twrp (I am on Nougat again now), but I didn't succeed:

--------------------------------------------------------------------

C:\adb>fastboot devices

28D6R17123002577 fastboot

C:\adb>fastboot flash recovery twrp-3.3.1-1.img

target reported max download size of 471859200 bytes

sending 'recovery' (21596 KB)...

OKAY [ 0.484s]

writing 'recovery'...

FAILED (remote: Command not allowed)

finished. total time: 0.516s

C:\adb>

---------------------------------------------------------------------

What might be the reason?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
What return this command ?

fastboot oem lock-state info

Edit :

I guess you need to move the whole adb folder from C partition, as may be there some permission issues .
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wandro:
C:\adb>fastboot oem lock-state info

...

(bootloader) FB LockState: LOCKED

(bootloader) USER LockState: LOCKED

OKAY [ 0.006s]

finished. total time: 0.007s

C:\adb>fastboot oem get-bootinfo

...

(bootloader) unlocked

OKAY [ 0.004s]

finished. total time: 0.006s

C:\adb>
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Try to install adb not on C partition, there you need special permissions ... and flash TWRP again !