yashsingh1/xdaforums huggingface dataset:
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] SovietNick:
Thanks for the answer!

I tried rebooting, turning on and off the headphones and the tablet. But the sound doesn't work.

I will write more about the problem. Headphones are connected and displayed in the settings. But when I press play in any application (music, YouTube, video player, etc.), an error window appears and the bluetooth crashes. You can see it on the screenshots.

I do not know what to do. I'm currently using wired headphones. But I really wish there was a way to fix this.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] SovietNick:
I understand that the headphones are trying to use the aptX codec, although the tablet does not support it. Switching in the developers menu to AAC does not work (when I select this item, nothing changes).

Is there a way to make the system only connect AAC or SBC?

When connecting other headphones (I borrowed them from a friend for testing) that only support AAC, the sound on the tablet works.

And does anyone have the same problem?

And I’ll add that when I used LineageOS 15.1, the headphones worked there, and the AAC codec was used by default.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] god123456:
exactly same with my problem,

my old post:

https://xdaforums.com/t/rom-10-0-li...date-02-01-2022.4198965/page-19#post-84390355

i have already try to cross flash to us,eur,china version to test ,no luck

now i'm back to stock and waiting;)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Sorry, no !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
I'm now waiting over 2 weeks. Still not registered...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
I don't any certification issue. Because i know how to fix this....

The only issue i have is

Whenever i flash lineage os any of the versions. I can only use it for 1 day only. After that it starts messing up with apps. I mean

Bluetooth keeps stopping , launcher keeps stopping , chrome and youtube stops responding. I bought this device for multimedia only.

View attachment 5519339
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
My BTV-L0J had a problem that Chrome freezed. And it has been solved.

To be precise, Chrome is working, but the screen is not refreshing properly and it looks freezing.

After this issue, I had to go to home screen and open Chrome again, then Chrome refreshed the screen normally.

To solve this problem, type chrome://flags in the Chrome search bar and set Android SurfaceControl to Disabled, and RELAUNCH.

This may be an issue that only occurs on BTV-L0J, but if it happens on other models, try it.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
I registered my GSF ID at the end of last year, and it took me about two hours to complete the registration. At that time, I went shopping and when I came back, it took about two hours. I registered my GSF ID several times, and it usually took about 30 minutes to register.

After getting a GSF ID, register your GSF ID on https://www.google.com/android/uncertified/ and wait for 5-10 minutes keeping your device connected to the Internet. Restart the device and wait for 5-10 minutes again. Then open the Play Store and log in. It takes about 30 minutes.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
If unable to register a GSF ID, you may have to change a fingerprint...

For changing a fingerprint, I think Aqibjd773's post and evilhomura89's post can help you.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
The connection between bluetooth and speaker is unstable on my device as well.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
O M G It worked!! I don't belive it !!! Thank you!!! :D
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
changing the fingerprint^^
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
To me it seems that the data was not deleted, or properly deleted before installing a new version of Android, switching between different versions of Android, such as LineageOS 15.1, 16 or 17.1 necessarily requires wipe data, which unfortunately are not 100% compatible and may have unexpected results.

So my advice is to try to install LineageOS on clean, by going to TWRP, in the advanced wipe menu, wipe all - besides Internal Storage and/or External Storage ( Micro SD card ) - if available ( available only if you have inserted microSD on your device )

EDIT:

Data also need to be FORMATED not wiped ( and this is mandatory ) and only once when you switch from stock EMUI Firmware to LineageOS & TWRP - but I guess you already did this, as you already run TWRP & LineageOS on your device !

EDIT II:

These are the options that need to be wiped to install LOS on clean :
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
I use custom roms on my main device too. So i know a little about switching between roms.

And i did the same steps.

And i have found the reason behind this issue. If i flash magisk and at the same time i have google chrome and youtube installed than my device messes up after a few hours or days. Here is the list of minor issues that shows up.

1. Can't enable wifi i have to reboot device to use wifi or hotspot everytime.

2. Bluetooth shows error that it stopped responding.

3. Systemui and launcher crashes.

...

And all these issues are faced on all builds.

But only with magisk. Without magisk i didn't face this.

.....

Other than that lineage os 15 has an issue with dialer where i can't use ussd codes it doesn't show reply. So I can't check my balance and data pack resources.

....

Lineage os 16 doesn't have any other issues except for the mentioned above.

...

Lineage os 17 has an issue that is very much concerned.

Sim doesn't work properly..

But i appreciate your work that you gave life to this device.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
ok, thank you very much for the additional information, but this should have been specified at the same time as the post where you reported about the problems you are experiencing !

Since you did not specify from the beginning that you were using Magisk, I gave you the correct answer to solve any problems in such cases ... It seemed strange to me anyway to find out that you have problems like this, considering that I am not using Magisk and I do not encounter the problems described by you.

EDIT :

Please, can you send me more information about the SIM issue into LOS 17.1 via PM, maybe I'lll be able to solve this problem in the near future? Thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
Ok i will flash lineage os 17 again and give you screenshots and logs. ..

Maybe network issue is only for pakistani networks.

I got to weak signal strength... Which makes internet speed slower..
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
There is a problem on LOS 17.1 with the correct scaling of the signal strength, so it appears in the status bar as weak

Unfortunately , the fix for the signal strength applied on LOS 15.1 & LOS 16.0 does not work on LOS 17.1
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hi !

New Update Of LineageOS 17.1 !

A new update of LOS 17.1 for our devices has been published in the OP

Changelog:

update of security patch level : January 5, 2022

Like always you can update via dirty flash if you come from previously update or on clean in all other situations !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mOlDaViA:
That is something i do always just to be sure and i did it for LOS 17.1 too but still the fingerprint was the problem for Google Services.

It looks like something is messed up with that.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] jarek7705:
I tried to do the update on my BTV-W09 no and unfortunately I have a bootloop. Fortunately, there is access to TWRP. Can someone help me what to do next?

Before the update, I had a fully running LineageOS-17.1-BTV_2021-03-19
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] earlg100:
Did you flash the boot.img? After every update you have to flash the recent boot.img as well on w09
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] jarek7705:
Yes of course, from this topic - https://www.androidfilehost.com/?fid=17825722713688278463

Now, if turn on the tablet, hava a startup animation in ~4 minutes and auto reboot to twrp.

EDIT:

Another upload of firmwaru and boot.img without restarting helped. fired up :) A file system repair was also needed because there was a problem with /data and /3rdmodem

Thank you very much for your willingness to help!

btw, and where I will find the instruction to upload back STOCK - and possibly where are the working sources, because those on huawei show an error ...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] soicon11:
Did you fix camera's problem bro?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Camera it's working only on LOS 15.1 & 16.0 !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] WUYL:
support system update？
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tek3195:
To go back to stock you should be able to find anything you need in this thread
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] terry_mccann:
Hi guys, getting this when trying to flash any LOS-image.....i am stuck here. Any ideas? Tried 15.1 as well eas 16.0 and 17.1 and also tried all the different TWRPs...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please take the time to get better informed about this device, as it seems at this time you do not know which TWRP to use, and if you have used the right TWRP it seems that you have not read / understood the installation instructions. Everything here is very simple, you just have to pay close attention to the installation instructions ... after choosing the right TWRP !

EDIT:

When you installed LOS 15.1, if you had read carefully what is written there you would surely have found out which TWRP to use, as this is clearly stipulated to eliminate any confusion !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] terry_mccann:
Thanks for nothing. Taking the time spamming that wall of text took you more time than hint in the right direction.

I understand very well what is going on. Choosing the right TWRP resulted in the directories of my current installation of stock 7.0 not being visible.

I thought up to now, forums where meant for helping each other out and not patronising like .....
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Well ... let's just say you're right ... but what about reading and understanding the Installation Instructions? Here is your 100% problem, more than that I can't help you !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] terry_mccann:
OK, for the second time: If I use TWRP 3030 I can see the image files that I saved on my SD card and internal memory, but I cant install them, just as you write in the instructions.

When I flash TWRP 3.3.1-1 all diretories are empty and I can see no files. The whole "Data"-share is not displayed, which it is unsing TWRP 3030

This is mentioned nowhere in your directions so pointing to it over and over doesnt really help.

Sorry, but getting a bit frustrated here.

€dit

OK, found it in a very secluded place in the 15.0 thread. To use 3.1.1-1 formatting Data is needed.

Still, not very helpful and pretty arrogant of you to not say this.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
ok, I get it now ... just because you're not able to follow the installation steps in the Installation Instructions, does that mean I'm arrogant ? Are you serious ? ... I guess you're kidding, man

I attach here once again especially for you what is written in steps 1 and 2 in the Installation Instructions :
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] terry_mccann:
Yes, because you are wasting loads of energy trying to readjust my attitude instad of simply pointing out the one logical step I had to fish out of a mountain of information.

You really need to get your priorities right.

I am really thankful for all the work you do around LOS, but that really wasnt best practice. Anyway, it works now, so thanks anyway.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
You posted a screenshot here with the wrong TWRP, that's why I answered you, basically the help was that I told you to follow the steps in the Installation Instructions ... which I see that you finally realized and it really helped you !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] MA7MOD_GSM:
amazing rom update
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] friedsonjm:
So, now, if you have not already done so, make a contribution to the developer to thank him for all his hard work to develop and maintain the ROM.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tomchism:
wow this is amazing. i've been waiting to see if this made progress. I use my btv w09 for everything, I've even written several books on it. do you think its at the point where I could safely upgrade? i don't use magisk or other stuff like that, its primarily watching tv, writing, amazon, online banking, and pokemon go via hotspot from my phone. i'll miss the camera function, but not so much that i'm not willing to wait. I just want to be sure that i can go back to doing all my old stuff after upgrading.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
Hi there i need help i tried to go back to stock rom and downloaded files put them into internal storage and than restored backup in twrp than my device restarted and got it's bootloader relocked. And now it's stuck at e recovery. How to recover it. I don't have bootloader code
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hi !

The next update will bring the new security patch for February 5, 2022 along with the ultimate kernel linux 4.4.302 update, unfortunately the Linux Kernel 4.4.y arrived at the EOL point !

I have already running the last update of Kernel version 4.4.302 on my device :
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
Can you please help me with locked bootloader and stuck at huawei recovery. I was going back to stock but unfortunately it stuck at recovery
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, take a look here, maybe it helps you !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Aqibjd773:
Sir i unlocked my bootloader with same method a few months ago. But today i was going back to stock.

And copied update.app file but it just rebooted and locked my bootloader and now only recovery boots even if i reboot it boots back to recovery.

I tried copying dload folder to sd card but when i press both volume buttons it starts updating and than fails at 5%
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
update.app must to match 100% your device in order to flash it via dload method !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Kolossus One:
Quick question, maybe I overlooked it but

It says camera not working does that mean it kills my camera and I can’t use another app to take pictures? Thanks in advance.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, you should use LOS 15.1 or 16.0 if you want to use camera ... or of course the stock EMUI firmware Android 6.0 or 7.0 !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] jarek7705:
I decided to stay on Lineage, it's fast and responsive. Thank you very much to the author for the huge work. I have only one question: how to get rid of the message about the lack of certification after installing Gapps (recommended in the pico version). Is it possible to use gmail ? Currently, I'm using to install the APKPure application but I would like to have at least a working gmail.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, see page 49/50 for the same discussion.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
New Update LineageOS 17.1 for Huawei MediaPad M3 8.4

I'm pleased to announce that there is a new update of this ROM into OP

Changelog:

new security patch : February 5, 2022​

kernel updated to the last patch 4.4.302​

Like always you can update via dirty flash if you come from previously update
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] mr.0x:
Thank you for your continued updates！hope the camera will work normally in the future
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
Thank you surdu_petru.

After erasing the Magisk, I did a dirty flash and it worked.

Is there something wrong after kernel update unable to be done? Security?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I don't understand ... you are not able to update kernel to 4.4.302 ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
Yes, kernel update to 4.4.302 succeeded. I read this comment and interpreted it to mean that kernel update to 4.5 is not possible. My misunderstanding?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Kernel 4.5 has reached EOL in 2016 !

View attachment 5547085
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
I embarrassed myself😖
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Vesko01:
Hello @surdu_petrum would you like to share what you are working on for the next update? Or are you planning on updating anything else except security patches?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
Hi, thanks for your job. I'm using my tablet with a 3d printer, but i'm not able to use/enable the ch341 driver, i know i must compile the kernel, can you help me??? thanks!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I'll take a look at this in the weekend.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
thankyou!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wuuuuu:
After i use the lastest rom. I found that my tablet didn't vibrate...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] wuuuuu:
Sorry, I think it may be caused by low battery mode...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please @a.faz.ago, what device do you have ? LTE or WiFi only ? Thanks ! ( in order to build your kernel with ch341 drivers inside )
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
Hi, LTE, thanks! if you have more time, can you write a guide to kernel compile. tried several times, but i do something wrong and i can't obtain the zimage. thanks for all
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
When you download the stock kernel from Huawei, there is a file called README_kernel.txt where you have absolutely all the instructions on how to compile that kernel to get Image.gz !

I compile much easier using the entire LineageOS 17.1 source code - but that means a lot more space (almost 80GB) which is of course not recommended if you only want to compile the kernel !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Here is a new kernel only for LTE devices that contains the "USB SERIAL CH341" kernel driver

Downloads : boot.img md5 : adbf79e283f4707c40569ee7da300cfd

Installation :

via fastboot in bootloader mode : fastboot flash boot boot.img

via TWRP, select install image ( boot.img ) over boot partition
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
wow thanksss!!!!!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
It's working ? Not tested in my device !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
i'm not at home, i'll try on late evening or tonight
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] ngohuyhoang:
Dear @surdu_petru, I bought a Mediapad M3 (BTV-DL09) a month ago, and it's the first time I come to this thread. Would you please answer some questions:

- I saw that "camera is not working", it's mean both front/rear cameras will nơ work?

- Do you have made any rom before (worked in BTV-DL09 version) on Android 9?

Thanks!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
No camera working on LOS 17.1, but it's working on LOS 15.1 & LOS 16.0 !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] ngohuyhoang:
Do LOS 16.0 work with the M3 BTV-DL09 version? I do not see it on the description like LOS 17 thread.

https://xdaforums.com/t/rom-9-0-lineageos-16-0-mediapad-m3-8-4-final-update-07-03-2021.4193555/
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
it's working really well! project done! thanks for your help! I hope you like the coffee :P
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] sjc0211:
Thank you for maintaining this awesome ROM @surdu_petru !

Here I share a methodology worked for me to solve Google Play Protect Certification.

1) Clean Install LOS 17.1 (You should wipe also system/vendor partition using 'Advanced Wipe' function)

2) Extract GSF ID (19-digits) using ADB (You can find corresponding adb command in this thread-search keyword: sqlite3)

3) Register GSF ID at https://support.google.com/android/answer/10248227?hl=en#zippy=,device-isnt-certified

4) Wait ~15 minutes with network connection

5) Disable 'Google Play Services' & 'Google Play Store' in Device Settings

6) Reboot Device

7) Enable 'Google Play Services' & 'Google Play Store' in Device Settings

8) Launch 'Google Play Store', if this method worked for you, Log-in screen will appear.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Thank you very much for your donation !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] baxter001:
HI I have a problem when I try to install gapps error 70 Rom working but I need gapps

Twrp 3.3.1-1
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
are you trying the pico version?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] baxter001:
pico its ok but now play protect doesnt find id by adb and Magisk 24.2 cant install
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
you must register your device. download this https://androidfilehost.com/?fid=673956719939830832 , then copy your gsf code, go to this link https://www.google.com/android/uncertified/ and paste the code. wait 10 minutes and it must works
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] baxter001:
Hi I found number by aplication register stop services google and google play reboot phone and dosent work.

When I use adb as a root I have this

/system/bin/sh: sqlite3 /data/data/com.google.android.gsf/databases/gservices.db select * from main where name = "android_id";: inaccessible or not found
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] a.faz.ago:
strange, mine is working well.

Try this

How to Fix This Device Isn't Play Protect Certified | Error By Google Play Services 2021 - ICTfix

– Hello everyone, in today’s video I would like to share with you how to Fix This Device Isn’t Play Protect Certified | Error By Google Play Services 2021 How to Fix This Device Isn’t Play Protect Certified | Error By Google Play Services 2021 Download File| https://ictfix.net READ MORE How to...

ictfix.net

i've a modded p40 pro with google services on it and no errors, hope works also for your device!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] baxter001:
thx :) done
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] bigjdunham:
I'm getting an "OOPS! no mirrors found." error when I try to download the 17.1 ROM, or the 16.0 ROM, or TWRP 3..3.1-1. So any ideas why that would be happening?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] bigjdunham:
Okay waited 24 hours, and now we're good. Downloading as we speak.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Alpa7000:
Does This ROM support Project Treble now？
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] bigjdunham:
Okay I got this ROM installed on my W09 M3 8.4 but as I boot into LOS 17.1 I get a "To start Android, enter your password." What's the password? I've never seen this prompt before when installing LineageOS on other devices.