yashsingh1/xdaforums huggingface dataset:
[Huawei Mediapad M3 Questions & Answers] pad media:
TRY "fastboot flash update.zip" (update.zip being a greatlson custom ROM)

edit : oh... fastboot commands fail! :P
[Huawei Mediapad M3 Questions & Answers] xdaens:
Well i did not try this one on purpose because it is not clear to me if you can flash a zip from bootloader (i thought it would only work with TWRP), also i think the command is « fastboot flash zip update.zip ».

There are also other commands like « flashboot erase xxx » i don't wan't to try for now ^^

I am trying to force rollback without external sdcard (despite the pdf instruction says NOT using the internal sdcard).
[Huawei Mediapad M3 Questions & Answers] pad media:
1) REMOVE MAGISK/SU.

2) Factory reset via *#*#284...

3) Put update.app (B09) in "dload" (on external scard ) and force install it. bootloader unlocked is not a problem and you now have a stock recovery.

B09 is a stock ROM so it will erase everything I believe if the install works (bootloader locked / FRP unlock)

The problem can be that you didn't remove magisk/SU... so the B09 may fail at 17% (after having removed magisk/SU... it worked for me!)
[Huawei Mediapad M3 Questions & Answers] xdaens:
The good new is that you were right about the rollback working with unlocked tablet (and the instruction pdf was wrong), i could rollback then apply B009 and have back a functional tablet,

the bad new is that the OEM unlock option is no longer grayed out, but when i enable it, it refreshes the setting screen and back to disabled, and the other bad new is that the bootloader is locked again and i can't unlock it because i can't allow OEM unlock… the last bad new is that i still have the FRP Lock which means at first boot if you don't enter my gmail account AND if i don't activate internet i can't complete the initial setup ( i think it's some kind of thief security), no idea how to disable that.

will try to use FF again, hopefully the OEM setting will work at some point…

it's sure a lot of work and motivation is needed haha
[Huawei Mediapad M3 Questions & Answers] pad media:
Root on B302 : Read instructions on post #77.

Under TRWP :

1) flash Magisk-v12.0.zip and reboot (link on post #77)

2) flash phh-superuser-magisk-r266-2.zip and reboot (link on post #77)

3) Install phh-superuser manager from The Google store (read what to do on #77)

DONE.

[MENTION=8238955]xdaens[/MENTION] :

I remember having read a blog on how to remove FRP thanks to ADB commands (was for samsung..). I'm sure the same kind of command/approach are valid for HUAWEI, I'll post in this thread if I find it of course.
[Huawei Mediapad M3 Questions & Answers] xdaens:
Good new, after an additional reboot the OEM unlock option was available and working, and i confirm it remover the FRP lock. It could be interesting to make the same thing solely with adb tho, because this OEM unlock option seems to be somehow instable…

I unlocked my tabled again, and then i even tried to flash the stock recovery (over itself i know…) to confirm fastboot was fully functional again, and it works! At this point i am upgrading again to nougat ^^

I just wonder, if i could not boot at all with FRP lock ON and stock recovery, does adb push still work? I shall test that, because if it's not the case there a risk of an « unrecoverable brick » at some point.
[Huawei Mediapad M3 Questions & Answers] pad media:
Very good news indeed!

FRP (OEM UNLOCK) is grayed out in B301/B302 if bootloader is unlocked (and bootloader being unlocked is mandatory if we want to flash a custom recovery like TWRP). But I wonder how FRP was modified to OFF then. Scary!

Logically, FRP lock shouldn't allow ADB write commands (to allow a thief to be able to reset and reflash the android device!) but I've read people having succeeded in removing FRP via ADB (on Samsung).

Anyhow, since you can log in with your google account, you can activate the developper settings and then put the OEM UNLOCK toggle on "ON" (

if the bootloader is LOCKED! After stock rom installation , it is.

)

Basically, our safety net is the possibility to install a stock rom!!! I'll always try to return to -B009 (official stock ROM) and I did it a few times already, in case of trouble.
[Huawei Mediapad M3 Questions & Answers] tom.android:
null
[Huawei Mediapad M3 Questions & Answers] Flavio:
I successfully managed to upgrade to B302 today.

I had an error with the OEMinfo bit but my M3 was already EU so I force installed stock B009 and took it from there.

Installed Firmware Finder, went to B010 and then straight to B302.

I also rooted the M3 again by unlocking the bootloader (forcing a full wipe), flashing greatslon TWRP5, flashing Magisk and flashing phh SuperUser.

Restore with Titanium Backup went without problems as well so all is good again.

Should I have formatted Data somewhere or was that done when the M3 was wiped after the bootloader got unlocked?
[Huawei Mediapad M3 Questions & Answers] xdaens:
Did you activate the magisk busybox option? it's an alternate way, it's either that or magisk+phh

---------- Post added at 06:20 PM ---------- Previous post was at 06:10 PM ----------

Yesterday night i finished installing almost everything, my tablet is fully functional again: unlocked rooted twrp nougat. i needed root for the youtube adfree, and nougat for the split screen resize feature, i'll post a few screenshots later ^^
[Huawei Mediapad M3 Questions & Answers] Flavio:
I used Magisk+phh.
[Huawei Mediapad M3 Questions & Answers] xdaens:
Oh i thought you had problem to root, all is okay then ^^

---------- Post added at 06:56 PM ---------- Previous post was at 06:50 PM ----------

Here are some screenshots of my setup:

[IMG="https://puu.sh/vGxbO/c0f14fd3f5.png"]https://puu.sh/vGxbO/c0f14fd3f5.png[/IMG]

some build info (that was before i had to rollback yesterday):

[IMG="https://puu.sh/vGxfP/cb87d21780.png"]https://puu.sh/vGxfP/cb87d21780.png[/IMG]
[Huawei Mediapad M3 Questions & Answers] Markken88:
Hi tom.android and teruhiko666, could you please upload your c209 eminfo? I already backup mine. Unfortunately my Micro SD yesterday was unrecognized and was forced to format when plug into PC. I need C209 eminfo in case I would like to go back to its original region. Thanks.
[Huawei Mediapad M3 Questions & Answers] tom.android:
Here BTV-DL09 C209 Oeminfo https://mega.nz/#F!kWhXCALD!pHjxStLWz-V4kxSHxwxJVQ

Someone Please share BTV-DL09 C233 OemInfo ......Thank you
[Huawei Mediapad M3 Questions & Answers] Markken88:
Thank you very much for the file. :)
[Huawei Mediapad M3 Questions & Answers] Markken88:
I just rooted my BTV-DL09C100B302 successfully following your guides. However, when I did a factory reset, the Nougat became unstable: Bluetooth not working, no Huawei keyboard and missing some other stock applications... I tried a few methods but could not make it work again. Therefore, I had to start over from B009 again. Now I am on B302 with locked bootloader. I would like to root, but if factory reset can't be used after rooting? Do you have any ideas? Thanks!
[Huawei Mediapad M3 Questions & Answers] Flavio:
Just try it again.

When you unlock the bootloader the M3 will do a factory reset automatically.
[Huawei Mediapad M3 Questions & Answers] GSX-R Rider:
I'll stick to B009(stock in my Mediatab M3 EU

Got a friend looking at the files. He says he found keystroke loggers in versions B301 and B302 with roots to RU.

i know him, and take his words/warning for granted.

So NO more FF for me.
[Huawei Mediapad M3 Questions & Answers] Markken88:
Yes it did a factory reset automatically. Anyway I mean that if I would like to do a factory reset manually in case some day it is a need, it will make the M3 unstable.
[Huawei Mediapad M3 Questions & Answers] tom.android:
Guy try https://github.com/stangri/MagiskFiles ( flash Magisk-v13-170505.zip and install MagiskManager-v5.0-170427.apk) good luck.

I can't try it now. when you want to factory reset please uninstall magisk first.
[Huawei Mediapad M3 Questions & Answers] xdaens:
That's exactly why i stick to B301, because i have the bluetooth problem with B302 when i factory reset. Some people says their B302 is okay, but i won't take the risk again for such minor changes: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1224/g490/v83674/f1/full/changelog.xml

---------- Post added at 11:49 AM ---------- Previous post was at 11:44 AM ----------

So you say that FF actually unpack the UPDATE.app, inject a key logger, then repack with a valid signature? it would be very useful for all of us to know what rogue process/file was identified tho

---------- Post added at 11:51 AM ---------- Previous post was at 11:49 AM ----------

Oh there is a version 13 now ^^ Well, the version 12 is working fine for me, and till we have full nougat firmware i will follow my « don't update anything if not needed » policy, i lost to much time on finetuning this tablet already haha.
[Huawei Mediapad M3 Questions & Answers] Flavio:
I installed Magisk V13 but I did not get root.

Reinstalled V12 and root worked again.
[Huawei Mediapad M3 Questions & Answers] xdaens:
I see in your signature that you say 380dpi, did you lower your dpi from 480dpi on purpose?
[Huawei Mediapad M3 Questions & Answers] Flavio:
Depending on where I use the M3 I use DPI's between 300 and 480. I use Easy DPI Changer to change it on the fly.

I use Nova Launcher that keeps the desktop icons looking the same.
[Huawei Mediapad M3 Questions & Answers] lolo83560:
Hi there, I tried to read and digest all that has been written so far but am a relative noob and still unsure which method should apply best ...

I fancy a lot this "official" method described just above, it looks simple and straightforward, but has it got chances to make it through w/ no hassle in my case? :

BTV-DL09C100B003

Vendor=HW, Country=EU

EMUI 4.1

Unlocked bootloader

TWRP installed

Rooted

And then, if a success, is it going to nuke my TWRP and rooted state? (and can these be easily reinstalled on top of recent Emui 5.0/Nougat system for M3)

Thanks for some wise advices. :good:
[Huawei Mediapad M3 Questions & Answers] Markken88:
The stock B302 without rooting is stable and nothing to worry about Factory Reset that I had done a few times. However, after flashing TWRP by greatslon and rooting, if doing manual reset, the M3 became unstable. And what I have noticed after doing a backup via TWRP, I saw a directory name, SD Card > TWRP > Backups > K6T6R16924000050 > 2017-05-06--16-58-59_NRD90M_test-keys. Yet, I checked the Settings > About tablet; there was noting wrong. It got right build number: BTV-DL09C100B302.

Nevertheless, I still persist in staying with rooted B302 and am not planing to do a mannal factory reset right now. So it will stay stable as it is...
[Huawei Mediapad M3 Questions & Answers] imgsna:
I`m on BTV-DL09C199B002 without any update
[Huawei Mediapad M3 Questions & Answers] xdaens:
I try to be more specific, here are the official changelog.xml from B301 and B302:

http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1224/g490/v81930/f1/full/changelog.xml

http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1224/g490/v83674/f1/full/changelog.xml

See a difference? that's the point.

---------- Post added at 09:31 AM ---------- Previous post was at 09:27 AM ----------

indeed the NRD90M_test-keys is what appears in build name after a reset, are you doing the TWRP backup with default options? i will try it with B301 and check the backup to compare

---------- Post added at 09:38 AM ---------- Previous post was at 09:31 AM ----------

Oh i think i tried Easy DPI Changer on my M3 but i did not use it because i was worried about it detected the wrong DPI on first launch ^^ I know changing DPI is pure cosmetic, but i think that Nova launcher looks nice with default settings anyway (look at my screenshots i posted https://xdaforums.com/showpost.php?p=72176375&postcount=128

I will make a signature like yours, it can always be useful for the readers to know your context when you post ^^
[Huawei Mediapad M3 Questions & Answers] Markken88:
My backup was included Boot, Systems and Data.
[Huawei Mediapad M3 Questions & Answers] xdaens:
Actually you can see the filename during the backup, and indeed it ends with NRD30M_test_keys, i will try to see if i can see that directly in a system info app. My backup will take some time, it says 8GB.

edit: the backup finished, i rebooted and… the fingerprint sensor is not working again… (not even visible in settings anymore). what kind of joke is that… i just made a backup!
[Huawei Mediapad M3 Questions & Answers] Markken88:
Sorry to hear that. I think that is problem with custom recovery. Anyway I hope somebody could figure it out.
[Huawei Mediapad M3 Questions & Answers] norti:
Tried this, but the first update fails at 36-37% (files are correct) and also nothing changes on the device (thankfully). I am on stock B006/LTE EU model (BTV_DL09_V2). I don't like to try the FW Finder method, I think I'll just wait for the official OTA then :confused:
[Huawei Mediapad M3 Questions & Answers] pad media:
[MENTION=838895]norti[/MENTION] :

1) You don't want to update directly from B006 to B301/302 ; B006 --> B009 --> B010 -> B302.

2) I've used Firmware Finder / Firmware Finder Proxy to update to B010 than B302 from the two local files which I've put in HWFF/null (note that they've corrected the folder naming in the latest *.apk. So you may have now to initiate the download to identify the folder which replaces "null" ; then stop the download and put the file you've downloaded directly from Huawei servers into HWFF/whateverfoldernamedbyFF.)

Don't give up. It works and it's super stable. NOTE : I'm going to add a note to this official installation process in my previous post as it leads to questions and an (harmless) installation failure

Have you read my long post above ? I guess not... why are you talking about an official OTA ? The link posted are official HUAWEI OTA. They are simply not final version releases (301/302) but beta/test versions. Nonetheless, they are official and links originate from HUAWEI servers.

---------- Post added at 05:17 PM ---------- Previous post was at 04:54 PM ----------

"

I try to be more specific, here are the official changelog.xml from B301 and B302:

http://update.hicloud.com:8180/TDS/d.../changelog.xml

http://update.hicloud.com:8180/TDS/d.../changelog.xml

"

See a difference? that's the point.

Ah, I see.

Look at the package size of the 301 and the 302.

Then, there is a addional package which comes with the 302 for a total of 3.7GB vs 1.3 GB or so for the 301.

One is from February and the latter from late April. Enough for me and it is damn stable so I really don't care about what can be the changes honestly. Therefore, I have preferred to pick the latest test release ;)

I've disregarded the changelog.xml files because it seems that they have simply wanted to focus on EMUI 5.0 look and feel and features and have forgotten to mention the differences between 301 and 302. But there are differences (bug and security fixes), this for sure.

All the best with your issues.
[Huawei Mediapad M3 Questions & Answers] norti:
Thanks, I'll give a try then the incremental update again ;) By official I meant final OTA, that will be pushed out soon(?), but I don't care, if this is already stable, I upgrade it now, the MM notification center drives me crazy :D
[Huawei Mediapad M3 Questions & Answers] xdaens:
I can't explain everything but:

- restoring the backup worked, i mean, i restored data and system (not boot because i think it may not work) and i recovered the fingerprint feature, i lost root but i will flash it again no problem

- in TWRP i remember it often asked to install TWRP app before rebooting, i think it may be cause of the problem, because i can't see why the backup process itself would cause a problem (plus i backuped to external sd)

At this point i think it was still a good idea to have a backup because it saves me a lot of configuration time (this way i did a faster chain B009->B301->TWRP->restore ). i hope the final nougat version will be released soon, wasn't it planned to be released this month?
[Huawei Mediapad M3 Questions & Answers] nicolap8:
Why?

If exists an ufficial download link use it!

If you are a normal User don't use betas!
[Huawei Mediapad M3 Questions & Answers] xdaens:
So, i installed magisk again because it was the only thing missing after the backup restore, and… the fingerprint sensor is gone again…
[Huawei Mediapad M3 Questions & Answers] pad media:
[MENTION=4159151]nicolap8[/MENTION] :

1) You don't want to update directly from B006 to B301/302 ; B006 --> B009 --> B010 -> B302.

Why?

According to inmates, it has proven to work without issue this way. And it did actually... Since I don't know what B301/B302 expect as the latest Android 6.0 version, a logical approach is to update till the lastest Android 6.0 update available which was the B010 for my region (EU).

Quote:

2) I've used Firmware Finder

If exists an ufficial download link use it!

Let me repeat it for the 3rd times (at least) : I've used an official link. Then, I have simply used Firmware Finder Proxy to install it ! Didn't use the "dload" folder procedure because OTA update fails (at 17% usually).

Quote:

They are simply not final version releases (301/302) but beta/test versions.

If you are a normal User don't use betas!

Let me think about what kind of user I am ; Hum... as I do like the B302, I'm not a normal user! :)
[Huawei Mediapad M3 Questions & Answers] nicolap8:
I don't know him and doesn't matter. It's informatics.

Nonsense! Rarely there is only one way!

This is not logical.

The B301 and B302 updates contain all relevant partition (use Extractor!) and the old partition are completely overwritten. So doesn't matter what was before!

There is only one exception: the content of file "/system/build.prop". Some ROMs want to upgrade only some others, usually limited to the "C"ountry part of ROM code.

I often read that people had this kind of problem with some sdcard, chaged the sdcard solved. Not ever...

This is not a joke: using a beta exposes the user (and his data) to problems. You can use betas BUT you must be aware of this. Only spreading how to install a beta without saying clearly that it's a beta, IMHO, is very bad.

A comment for people having problem with rooted device after a format: why have you not read the SuperSU documentation? It's clearly stated that the "su.img" and the copy of the original BOOT image are STORED in the DATA partition! So if you format the boot process is somewhat incomplete and the su is not functional.
[Huawei Mediapad M3 Questions & Answers] xdaens:
Someone can tell me the value of ro.build.fingerprint using BuildProp Editor? as i know it's a software problem, i am just trying to restore the fingerprint menu in settings

also, i have these values in these files, and i can't edit even if root mode (maybe those are volatile files):

/sys/devices/virtual/sensors/fingersense_sensor/power/runtime_enabled : disabled

/sys/devices/virtual/sensors/fingersense_sensor/enable : 0

also when i check catlog i find this error:

05-08 00:52:30.883 1872 1990 E libfingersense_wrapper: libfingersense.so was not loaded

can someone check (with ES explorer for example) if you have this file somewhere?
[Huawei Mediapad M3 Questions & Answers] NOSTALGIA:
Hello I would like to remind everyone to be respectable as much as possible. Just a friendly reminder from your dearest mod.
[Huawei Mediapad M3 Questions & Answers] trd_jzx100:
For the DL09C209 users there seems to be a nougat update B306 on firmware finder, any one test it out
[Huawei Mediapad M3 Questions & Answers] Calibaan:
I had similiar problems when flashing the EMUI5 ROM. After flashing MAGISK the fingerprint sensor did still work but after a full reboot it stopped working. So I tried flashing ROM -> factory reset -> run the first installation -> Reboot once -> now rebooted again into recovery and flashed MAGISK

So it seems that the ROM is still doing background installation stuff after the first reboot which shuts down the fingerprint sensor when finding MAGISK or to be more precise a SU binary since I could reproduce this behaviour also with trying to install SuperSU. Probably an undocumented safety feature to use the fingerprint sensor only in case it can´t be compromised by root access, who knows?
[Huawei Mediapad M3 Questions & Answers] norti:
So, I successfully updated from B006 to B009, but the B010 upgrade failed every time, then after several tries I went directly to B301 and that went fine again :) So I am now on B301, unfortunately the B302 won't install again, it fails at the firmware checking before restart and deletes the downloaded package because package authentication fails... All this with the Firmware Finder's proxy method. I haven't tried the SD card method yet, but I think it'll fail too. I guess I'm stuck on B301 for a while, but that's fine, it's so much better than B006/MM :P

Sidenote: downloads from the Huawei servers seem to have a hard 250 kB/s limit, at least in Hungary with my ISP...
[Huawei Mediapad M3 Questions & Answers] trd_jzx100:
I have a btvdl09 region c209. I updated to nougat via load on firmware finder went to 99% then failed.

I was previously running b008 with twrp .

So decided to rollback using the rollback package got the change of region. Dload the b008 it's stuck on emui 5. Tried factory reset same deal didn't work still stuck on it but this time with no keyboard. So I flashed the data file to get the keyboard back.

Now's here's my issues

Can't install tarp I get a image verification as I flash it

Boot loader is unlocked.

Tried Phoenix. Same deal. Method 2 I lost my serial but I restored it back.

I can't enter the hidden menus settings from dialer either.

So the current state of the tablet is at the moment

Can boot into it ennui 5 starts up can do normal things etc. Install software etc

What I can't do.

A factory reset. All the icons appear and no prompt for Google account. Finger print scanner etc.

Install twrp for emui 5 even though boot loader is unlocked. Tried relocking and locking. Failed

So basically I have a functional tablet which is broken on the inside.

Any ideas to get back to emui 4
[Huawei Mediapad M3 Questions & Answers] mfgzmfgz:
https://www.youtube.com/watch?v=2_j7tfSbXSA&t=94s

I have a problem with that tablet fingerprint sensor, it works when it wants and after a while the tablet stops working. Even the menu settings disappears, fingerprint ID is gone

when I restart the effect is zero only when I reset the factors it works but after a while the fingerprint sensor refuses to work again. Does
[Huawei Mediapad M3 Questions & Answers] Markken88:
Because now there is not any Full Firmware OTA for c209, the only way back to emui 4.0 is to dload C100 Full Firmware, HUAWEI MediaPad M3 8 Firmware (BTV-DL09 ,C100B009, EMUI4.1+Android 6.0). And you will get back to Emui 4.1 with different region from your original. if successfully downgrade, you will get BTV-DL09C100B009 with locked bootloader again.

http://consumer.huawei.com/it/support/search/index.htm?keywords=btv-dl09&t=SupportSearch
[Huawei Mediapad M3 Questions & Answers] trd_jzx100:
Thanks for the tip. I noticed a few pages back I am not the only one with the issue with c209. Will try it out tomorrow
[Huawei Mediapad M3 Questions & Answers] trd_jzx100:
Ok the good news is tablet is back to emui 4.1. I can get into the hidden menu with the *# etc. But after a factory reset I am not prompted to enter any info Google account finger print enrol etc. Is that because of a different oeminfo.

Also the boot loader did not lock. Still can't flash tarp I get a image verification error.
[Huawei Mediapad M3 Questions & Answers] Markken88:
Did you successfully (100%) dload full firmware BTV-DL09C100B009? My M3 was C209 too. Before I completely switched to EU, I had dload BTV-DL09C100B009 a few times, it got the bootloader relocked every time. You should try to repeat the steps as described in the posts, and you will fix this.