yashsingh1/xdaforums huggingface dataset:
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I'm sorry but I don't think I can help you, I don't have this model so I can't check / possibly fix your issues !

If you search back with more several posts, someone with a device like yours managed to fix the sensors by flashing cust partition from stock .... I do not remember exactly what he did, so better check yourself .
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Nghia270295:
Thank you!!! 😃😃😃
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Here you can check how rotation can be fixed on your device !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Nghia270295:
Which Partition should I flash the CUST.img file to fix the rotation issue?

Thank you!View attachment 5222067
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
In my case, flashing CUST had no effect, but if you want to try, The CUST should be flashed with the fastboot command.

fastboot flash cust CUST.img

I would recommend you to launch the Google Maps app and leave it for a few minutes. This will make the rotation work, but note that even if it works, the response will still be delayed.

For example, sometimes it responds immediately after tilting the device to the side, and more often it responds after about 15 seconds.

You will need to do the same step for each reboot, but Rotation will work until you reboot.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Nghia270295:
I tried both methods, the rotation still doesn’t work. Now I am having a temporary solution that is an app called “Rotation control”,

P/s: My CUST.img file was pulled out from BTV-L0J 6.0 stock rom, I don’t know if it is exact file
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Me,You,and Daigorou:
I am sorry😥

Rotation is working on my BTV-L0J running LOS17.1 for two days now, although rotation is very often slow to respond.

I have not tested it on LOS15.1, but I was sure it would work just as well.

If you could, please launch Google Maps, leave it for two minutes, then go back Home and tilt the device and wait for 20 seconds? In my case, the rotation always works within 20 seconds.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] red71fl:
Here's my problem :

1) I put USB debug, and OEM unlocked.

2) adb reboot bootloader is working.

I have : PHONE lokced and FRP Unlock.

3) fastboot flash recovery twrp-3.3.1-0.img gives :

target reported max download size of 471859200 bytes

sending 'recovery' (21994 KB)...

OKAY [ 0.499s]

writing 'recovery'...

FAILED (remote: Command not allowed)

finished. total time: 0.512s

Any ideas ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, It's mandatory to have : PHONE Unlocked and FRP Unlock, the both with RED :)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
long time ago I've had a look into this thread but is the camera still only working in landscape mode for pictures?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
OK...very strange... had this issue now twice... ROM is working great... after a backup in TWRP and a restart I again get the "encryption unsuccessful" message :-(

why? any idea? It's now the second time I have to start from the scratch with "format data", install and full config

EDIT: OK If I format the data I can boot into the system and have to restart the whole initial setup... how can it be that the data partition gets encrypted somehow after working with the ROM for several hours or even days

EDIT 2: Is this maybe caused by Magisk? I've now formated data partition started initial setup and then restarted to recovery restoring only the data partition.... everything works fine so far .... completely clueless why this happens sometimes
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hello !

A New Update has been added to the OP right now !

Changelog:

update security patch : February 5, 2021

fixed SIM issues for all LTE devices with productid=0x3c220800
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] few__:
I use it all the time. Thanks for the update!

In using it, I found a problem that it is very slow to recover from sleep.

(My translation may be inaccurate)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] nguyentu2204:
Wonderful
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
@thunderz1

Please, can you send me sys/fs/pstore content from TWRP ( adb pull sys/fs/pstore ) as soon as your device reboot after you connect your bluetooth keyboard and also usb otg keyboard !

You shouldn't wait to boot on erecovery, instead as soon as device try to shut down, quicly disconnect usb cable and keep pressing volume + button , in this way you'll force the device to boot on TWRP, and only now you can grap the corect content from sys/fs/pstore !

You can also archive the whole pstore folder with all content in it and upload somewhere and send me the link here or via PM, thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] thunderz1:
Thanks so much!

Here is a link to the pstore folder archived after a reboot from connecting a Bluetooth keyboard.

pstore.tar.gz

drive.google.com

Please let me know if this is not correct, need more info, etc.

Thanks again!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, I guess that the content of pstore is OK, thanks ! I'll try to take a look into it, maybe I can find something useful in order to fix your issue.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] few__:
@surdu_petru

Can you publish the device tree and vendor tree?

There are too many bugs in LineageOS itself and I want to build another rom.

thank you
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] the_wing:
Hi guys, hi @surdu_petru

I just flashed the newest release and it works like a charm!! Thank you Surdu for keeping this version always up to date! It's been some time I didn't update the tablet (I was still on a version from last November or so) but I could use the tablet also with that version and didn't really have the need for updating!

The only thing which I still didn't get is how to install that damn Netflix app and pass this SafetyNet thing:

By searching on older posts I found out that (1) you have to install Magisk and (2) you will have to change some option to fake something and possibly (3) clear data from PlayStore to make the apps like Netflix appear.

For example:

Sorry but I never used Magisk and therefore I'm confused:

- Installing Magisk requires rooting the device? Or are the two things independent from each other?

- Can I install it after the ROM is flashed or should I've done it already in TWRP while "clean" flashing the ROM?

- Apart this Aurora Store option which I don't trust, are there other options to do that without rooting (in case 1st question is true)?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] martymcbro:
- Magisk is installed by flashing it through TWRP. No extra root needed, TWRP already has root. After flashing it your device is rooted, so your apps can request root permissions.

- You can flash Magisk with TWRP also later. No need for flashing during initial installation.

- Just use play store, you only need to register your device with google. Edit: Sorry I was confused, extra registration is only needed in LOS 17.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
New Update : LOS 15.1 !

I just released a new update into OP for our device Beethoven !

Changelog:

update security patch : March 5, 2021

fixed USB-OTG issues !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] thunderz1:
Thanks very much @surdu_petru!

Wanted to confirm this update fixes the Bluetooth keyboard reboot issue. In fact using it to type this. Thanks again and keep up the great work!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] nguyentu2204:
Wonderful, my Bluetooth keyboard works
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
I have again the "device encryption unssuccessful" message after 2 weeks of working fine... why I receive this message?

Only thing I can do is TWRP the data partition and flash the system again and then restore but it's anoying... anyone has an idea whats going on?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Because this problem does not occur in all users, I tend to think that it is given by a certain application installed only by you ... I guess that you don't have this issue if you only flash GApps and nothing more !

Anyway, I'll try to fix your issue on the next update.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
Could it be Magisk related?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tek3195:
I don't know what happened to my tablet, but I can't get a twrp to stick without boot-looping to twrp or booting to fastboot. As soon as I open twrp it reboots to twrp or fastboot. I have tried placing twrp in recovery and in recovery2 partitions both with same outcome. I have flashed board software multiple times via IDT and SigmaKey and always same outcome when I install recovery. @surdu_petru do you have an LOS Recovery I can try ? I just want to see if I can get anything to work.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Unfortunately I didn't build LOS recovery - and even if I'll build one I don't know if really working as I don't have experience with LOS recovery !

If your device it's WiFi only, I can try to fix mount modem partitions issues, as your device doesn't have them - and maybe the issue come from here .
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tek3195:
You may really be on to something there. I forgot to deselect modem partitions when flashing .skf bsware which is dl09 and have to untick modem and oem related items for w09 use. Afterward I followed up with update.app for w09 so it should actually be btv-w09/dl09 which is a bad thing. Can I zero out modem partitions and reflash w09 or will erasing modem partition content cause bigger issues ? I'm thinking like wiping 3rdmodem 3rdmodemnvm and 3rdmodemnvmbk and then flash correct files. Or is your way easier ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
BTV-W09 do not use 3rdmodem, 3rdmodemnvm and 3rdmodemnvmbk and also modemnvm_img & modem_om !

So, you can decompile my TWRP, uncomment all those partitions from etc/recovery.fstab & re-compile TWRP back.

I can't remember exactly which modem partitions I included in twrp, but if you find one or more, they should all be removed.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tek3195:
That's what I was saying, I forgot to untick them with the software I have and flashed those 3rdmodem partitions to a w09 and they aren't supposed to be there. OK, okay I'm catching on, I'll check recovery and remove if there so it doesn't read or load them hopefully.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] arestb:
How to flash cust bro?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] arestb:
I can not backup cust d01j android 7 tmwr 3.1

How to backup bro?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] arestb:
@surdu_petru

Do you know how to flash CUST ? , Sorry to disturb you !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
Is going to be lineage 15.1 update in the future? I recently switched to that one and it feels better as I can make video calls
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
In my case GPS doesn't work is it a known issue?

Edit : in fact it doesn't work WITHOUT google services.(without gapps)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
Hi Petru, again after 3 weeks of using... tablet is encrypted and not useable... very few apps installed, no Magisk... I dont know why only I have this issue
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, sure ...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Will be fixed in the next update ...
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
Thx! It means you know why this happens?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, I can guess what is the root of your issue and in normal conditions it shouldn't happen.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
Can you give me a hint...maybe there is also a way to avoid it from an user perspective
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
Is there a problem if I installed that rom with twrp3.3.1-1 instead of 3.3.1-0?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Grander77:
Somewhere here or at 17.1 @surdu_petru wrote that TWRP is 3.3.1-1 for Android 9/10 and 3.3.1-0 for Android 8.

But I cannot say whether there are significant problems or whether it works with the 'wrong' TWRP.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
TWRP for Android 9/10 do not mount product partition as we use system/product instead stock Huawei product partition. So I guess we can use also TWRP for Android 10 when we flash Android Oreo , because product is not used at all when install the LOS 15.1
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
Boh, i don't find any particular problem. So it s okay
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Hello !

A new update has been released with the latest security patch : May 5, 2021

As usual please check OP for downloads, thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Joelintw:
Riru xposed won't work since pervious version (3/19), any suggestion?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
Hi Petru: encryption issue addressed with the new update?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, what device do you have ? LTE or WiFi ? I'll provide a new boot.img in order to fix your issue, thanks !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
it's an LTE one
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I'm sorry, but I had too many things to do these days and I forgot that, in fact your issue was solved with the new update !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Hitchi:
ur great petru...thx. So no need to install another boot.img just install new release of your custom ROM, right?

If the camera would work on 17.1 I would instantly switch to it :)
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
Hello. I have been following the instructions to install LOS 15 but I have a problem with TWRP: I can mount it with power Shell or CMD and the installation looks normal but, when trying to enter recovery mode, the recovery from Huawei continues to appear. I have done the procedure several times thinking that perhaps it is a bad installation but the problem persists. Could you help me?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] thunderz1:
If you have a USB cable plugged in (even charging) the tablet will generally not boot to TWRP. Hopefully that helps.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Ferreto.11:
Thanks for the collaboration. I do not know what else to do. Still not working. It also does not allow me to root with any method
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Firstly you should be sure that you have the bootloader and FRP unlocked .. secondly , you should install the proper TWRP and follow the installation instructions from TWRP & LOS, and all will be fine !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] brundmc:
I bought a BTV-W09 off of ebay. The software was mostly restored. Fastboot said the bootloader was unlocked but it wasn't. So after reading all these posts I have done the data folder recovery and actually unlocked the tablet. I installed TWRP and loaded LOS 15.1 following the directions from the OP. I had the failed to mount /cust and /3rdmodem errors and LOS never boots just has the lineage loading circle and line. I did the fix to get the cust partition error to go away by extracting the cust.img and flashing it over fastboot. But I'm still not able to boot lineage 15.1. I can boot LOS 17 but I'd like to have the camera working. Any advice to get this working? Thanks in advance!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
If you are able to boot LOS 17.1, then there is no reason to not boot on LOS 15.1 !

EDIT:

Make sure you performed a proper clean between the both LOS ! ( as data from LOS 17.1 will not be compatible with data from LOS 15.1 neither with stock EMUI )
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] spyfly:
It seems like the download link for the ROM is broken.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] daser4berlin:
Can someone share the last Update? Thx
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Please, take a look here !

In the meantime, I think someone will be able to help you.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] daser4berlin:
Thx for answering..

i have found the second last update and used it with the newest kernel..

For los17... It's running better than previous buildings but for me personal it is not so stable as 15 and for my feeling the battery life is not the same as 15... My personal thing...

Greetings

Patrick
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
Just use the last twrp 3.3.1.1 it works with no problem
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
You can find march update on Android file Host. If it can help you until newer update comes
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
if you keep 3.3.1-0 twrp, to enter on it you have to shutdown your device hold vol+ and vol - while you plug the usb cable which is connected to computer. you will boot on twrp
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] trotos:
I got the following device:

BTV-W09 - C100 BTV-W09C100B308

I managed to unlock the boot loader and installed the TWRP.

But from that point, I only stumbled upon problems and boot loops.

I am positive (?) that I installed the wrong version for my tablet (I installed the one clled: twrp_BTV-W09_5_greatslon). Then I saw that that the there is a recomendation in another post to firstly install the 3.0.2 version while under EMUI 5.0.4.

This one was showing a lot of partitions (I am uncertain what to be expeceted) I format the partitions (of course there was the 3rdmodem partition not found) but when I tried to install the LOS 15.1 (LineageOS-15.1-BTV_2021-03-07) there were errors being an incorrect device, and my device was recognized as empty.

Could you please let me know the correct TWRP version and the correct combinations of TWRP and custom ROMs, for my device? Also the order of installation.

I am still a bit confused.

Also, sorry for the also confusing post.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] trotos:
If I am not mistaken while the device is powered off you need to simultaneously constantly press the power button and the volume up button. I usually first press the volume up and then the power button till I see the mediapad logo.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] Incomtus:
In my case I press simultaneously up and down volume buttons until I see the "device has been unlocked" warning
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
If you try to read carefully the whole OP, you'll find for sure what TWRP you need ... Also into OP and the second post there's all steps that you need in order to install correctly TWRP an LOS. Good luck 🤞
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] todd98092:
Hi. Sorry if this is stupid question. I've been trying to find a live link to LineageOS-15.1-BTV_2021-05-13.zip . Am I missing something? I've installed older versions. Just trying to get current.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] demonspork:
Looks like the filehost that the main ROM is hosted on has vanished. Anyone have a copy of that latest LOS 15.1 build to share? I've been having some annoyances with the 17.1 so I wanted to try out 15.1 but I'm stuck without the ROM.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] tek3195:
I don't know when latest was, this one is 2021-03-07

https://androidfilehost.com/?fid=2188818919693748975
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] cospo:
Hi Petru, could you please re-upload the latest firmware LineageOS-15.1-BTV_2021-05-13.zip ?

The original link is down.

And seems like one 2021-03-07 above was not the latest release.

Thank you!
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
I'm sorry, no ... I can't for moment ( you should read a few posts behind to see why ) !

As soon as I'll be able to upload ... I'll release new updates for this ROM !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] heiko-soft:
Is there any update?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Yes, starting with January 2022 !
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] samarchik:
Hello, please tell me if Huawei m3 supports video playback at the hardware level as 1440p60 in the Lineage OS firmware?

I understand that this question may seem strange, but I can't find the exact information on this issue. Someone says that this support is available on this processor, and someone on the contrary claims that there is no support.

Personally, I have the factory firmware BTV-DL09C170B352, suits me almost completely, except for the support of video 1440p60, the video on it slows down. I think to flash to Lineage OS if there is support.

So before the firmware, I would like to ask you if the video is playing on your device with the new firmware. I use the tablet mainly to watch videos via Youtube, and I am very interested to know if flashing will help me or not?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Final Update Of LineageOS 15.1

I have released a new update and the last one for Lineage OS 15.1 based on Android Oreo for our devices in OP !

Changelog:

new security patch : October 5, 2021

This is the last update of this custom ROM due to stopping updates of the security patch.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] suteadopass:
Hello.

I have been using this custom ROM for a while now.

Now, when I run a shell with this rom and execute commands such as "ls", I get the following error.

---

WARNING: linker: Warning: unable to normalize "system/lib64/vndk-sp"

---

It seems that the dynamic linker cannot find the search path. I think it's a relative path, which causes an error when running outside of root.

Could you please fix it?

Thank you very much.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] basilatiao:
我的设备是BTV-W09，Android N，想用Los15.1系统，有详细教程吗？我想从这个网页（https://pro-teammt.ru/online-firmware-database-ru/?firmware_model=BTV&firmware_page=0）下载BTV-W09C233B367 (FullOTA-MF)，但是点击下载时网页报错404，请问还有其他地方可以下载吗？我正在用谷歌翻译
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] basilatiao:
我的设备是BTV-W09，Android N，想用Los15.1系统，有详细教程吗？我想从这个网页下载BTV-W09C233B367 (FullOTA-MF)，但是点击下载时网页报错404，请问还有其他地方可以下载吗？我正在用谷歌翻译
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
unfortunately we can only respond to messages written in English, this also being the XDA policy
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] arslan mir:
Kindly please make backup of andriod 7 os stock i want to fix my device please . Cant get ota thanks
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] trunglevt:
Is the first boot process supposed to be long ? I flash the latest version and opengapps Nano and it still is booting

Also i cant use the format dat function. It stuck for a while. I have to use change data system to ext4 to get the data partition/

Edit Finally install Lineage os. Got to use the erecovery to wipe data and cache. So the data is fully reseted.
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
Does you use the right version of TWRP ?
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] hk56184172:
BTV_W09 cant boot.I flash the boot.img
[Huawei Mediapad M3 ROMs, Kernels, Recoveries, & Ot] surdu_petru:
You need the right TWRP and also you need to format data .... try to follow instructions and you'll not have any issues