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[ROM][STOCK][Android 6.0][M2 8.0] All 8.0 models - Stock Marshmallow ROMs

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By beast.in.black, Senior Member on 10th January 2017, 09:54 AM
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Hi all,

This is the consolidated thread for all Marshmallow ROMs for the Mediapad M2 8.0 8" devices, as downloads available from the Huawei hicloud.com servers (see below for whois info on this domain, to verify that the domain owner is Huawei). If anyone is running a ROM more recent than those mentioned here, please reply in this thread. Also, if you can mention the source from where you downloaded it, please also add that source in your reply, and I will update this post accordingly and give you credit for finding it

This post will be updated as and when new info becomes available. In this post you will find:
  • ROM downloads for the Mediapad M2 8.0 Marshmallow ROMs.
  • Installation instructions for the ROMs
  • Rooting/Unrooting instructions
  • DPI/LCD Density change instructions
  • How to perform Local Updates on Marshmallow ROMs
  • Issues/Problems Noticed
  • Instructions to recover from a bad ROM install/softbrick/bootloop

Obligatory Disclaimer: I have not tested any of the ROMs mentioned below (apart from B203 and B207 on the M2-802L) because I do not have the proper device models. Also note that even though they are available for download from the Huawei hicloud site, these ROMs have not (as far as I know) been actually formally released by Huawei.

M2-801L
Note: user @omaga reports that B202 seems to contain a newer kernel and security patch than B205.
B205: http://update.hicloud.com:8180/TDS/d...1LC100B205.zip
Thanks to user Caelestiel for mentioning that B205 existed for M2-801L so that I could search for it - a valid download link for it was not present in my previous search.
B205 Text Link:
Code:
 http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v57899/f2/full/M2-801LC100B205.zip
B202: http://update.hicloud.com:8180/TDS/d...ull/update.zip
B202 Text link:
Code:
http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v70346/f1/full/update.zip
@omaga has found B206 for the 801L (thanks, omaga!); however the ROM download is NOT from an official Huawei server.
user @pajosekX has found B206 for the 801L on an official Huawei server! Thanks, pajosekX! User @allrightlite has verified upgrading from B008 to this B206 ROM. Thanks, allrightlite!
[B]B206:[B] http://update.hicloud.com:8180/TDS/d...1LC100B206.zip
B206 Text link: [CODE]http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v74068/f1/full/M2-801LC100B206.zip[CODE]





M2-801W
Note: user @elendiir reported that you should skip the installation step where you unzip the downloaded ROM. See post #63 in this thread. Thanks, Elendiir!
B202 European cust channel M2-801WC232B202 found by XDA user @lonwas (see post #77 in this thread):
http://update.hicloud.com:8180/TDS/d...ull/update.zip
Text link:
Code:
http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v74308/f1/full/update.zip
B213: XDA user @ruggles says in a thread replythat the B213 zip posted here worked for him. But please note that this B213 download is NOT from an official Huawei server.



M2-802L
Note: My M2-802L just got an official OTA update from Huawei to B203 (I had restored my old B005 ROM from TWRP). This OTA update does have the Huawei Swype IME keyboard, though (I had lost Swype when I flashed B207 over B005). However, the kernel and security patch version in this B203 OTA update are older than the one on B207. Also, both B203 as well as B207 ( after following the update path B005 -> B203 OTA -> B207) seem to have the "3G/4G icon is always on" problem. See below.
B203: http://update.hicloud.com:8180/TDS/d...2LC209B203.zip
B203 Text Link:
Code:
http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v65143/f1/full/M2-802LC209B203.zip
B207: http://update.hicloud.com:8180/TDS/d...ull/update.zip
B207 Text link:
Code:
http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v67917/f1/full/update.zip
3G/4G icon always on: I've confirmed that this is due to B203; the upgrade path B005->B207 does not have this issue. B005->B203, B005->B203->B207 and B005->B207->B203 all have the issue. While it appears to be alarming, no data seems to actually be going through the mobile data if Wifi is on ("Settings"->"About Tablet"->"Status" shows mobile data as disconnected); so it seems to be just be an indicator the current mobile data speeds.
Also note that flashing B207 over B203 will remove the Swype IME.



M2-803L
B215: http://update.hicloud.com:8180/TDS/d...ull/update.zip
B215 Text link:
Code:
http://update.hicloud.com:8180/TDS/data/files/p4/s10/G506/g0/v60481/f3/full/update.zip
Sorry, M2 10.0 owners, I do not know what is the proper ROM numbering for the M2 10.0 Android 6.0 Marshmallow ROMs - I have found ROM B030 for the M2-A01L and ROM B020 for the M2-A01W, maybe some M2 10.0 owners can tell me if these are Marshmallow ROMs...? If anyone can confirm that the above-linked B0XX ROMs for the A01L and A01W are Marshmallow, I will update the thread accordingly.

Installation Instructions:
  1. If you are currently rooted and/or have a custom recovery installed, you will need to go back to the Huawei official recovery to install this update. You can do this by following the instructions in my previous post here.
  2. Download the appropriate ROM update zip from one of the above links.
  3. Note: If you are using one of the wifi-only models - specifically the M2-801W, user @elendiir reported that you should skip this step. See post #63 in this thread. Thanks, Elendiir! Extract the contents of the zip file in the link after it has finished downloading. The contents should be something like this:
    Code:
    [update.zip contains]
    ├── META-INF
    │** ├── blacklist.conf
    │** ├── CERT.RSA
    │** ├── CERT.SF
    │** ├── com
    │** │** ├── android
    │** │** │** └── otacert
    │** │** └── google
    │** │**     └── android
    │** │**         ├── update-binary
    │** │**         └── updater-script
    │** └── MANIFEST.MF
    └── UPDATE.APP
    
    5 directories, 8 files
  4. Create a folder called dload on your SD Card. You can create it on either the internal or the external SD, it doesn't matter.
  5. Copy the entire contents of the unzipped download package into the dload folder on your SD Card, which you created above. Alternatively, you could just unzip the contents directly into the dload directory on your external/internal SD card.
  6. Go to your phone's "Settings". There, navigate to "Updater"->"Menu"->"Local Update", select the displayed option, and allow it to install. Your phone will boot into the original OEM recovery and install the ROM, after which it should (hopefully) boot into the new ROM.
  7. It should then connect to the Google Play Store and update the Google framework. All your settings, apps etc should still be preserved - mine were.
Local updates on Marshmallow ROMs
In the Huawei Marshmallow (Mm) ROMs, the updater app does not have the "Local Update" option anymore. So how do you do an update from the SD Card (say you want to install a different Mm ROM)?
Here's how to do local updates on Huawei Mm ROMs. I used the dialer method. If you are on one of the Wifi-only models, XDA user @elendiir has this method for performing a Local Update on Marshmallow (where the updater app does not have the "Local Update" option), especially on the Wifi-only models which don't come with a dialler app. Thanks, Elendiir!
Quote:
Originally Posted by elendiir

Maybe you should extent the description how to flash roms via the local update in Marshmallow for the Wifi-only models:
Tested on my M2-801-W:

  • Start the included calculator app
  • switch to landscape mode in order to enable the more advanced input mode (you will need this in order to enter the "()" as described in the next step)
  • enter the follwoing string: ()()2846579()() and press the = sign
  • you should now have entered the project menu
  • select number 4 for software upgrade and then sdcard upgrade
If you're on a Wifi-only model and the instructions above don't work for you, then you may need to use the HwOUC app method detailed in the link above.

Not sure if this also works on the models with SIM card - but there you can enter mostly the same sting via the dialer app: *#*#2846579#*#* as you have already described.

Cheers
Elendiir



Rooting/Unrooting instructions using phhusson's Superuser:
Rooting:
  1. First install TWRP as your recovery. If in doubt, use the excellent Huawei Mediapad M2 rooting guide found on these forums.
  2. Then grab the latest superuser.zip (from phhusson's Superuser project which is an actively-maintained fork of Koush's open-source Superuser project), and install it via the TWRP recovery.
  3. Finally, get the "phh superuser" app from the Google Play store.
  4. At this point, you should be successfully rooted. To check, you can install an app which requests root permissions (maybe a terminal app like Termux, firewall app like AFWall+, or file manager like MiXplorer), run it, and see if the root permission app dialog comes up and if the app successfully gets root after you give it the permission in the dialog.
Unrooting:
For this, you need to fastboot flash the BOOT.img from your ROM. This will involve you extracting the BOOT.img from the UPDATE.app of the ROM you flashed.
  1. Make sure that you have ADB and FASTBOOT installed on your computer. You can use the 15-second ADB installer available here on XDA.
  2. Uninstall the "PHH Superuser" app on your device using the app manager or the Google Play Store.
  3. Unzip the ROM's zip file. If you're on Windows, you can use the excellent 7-zip tool for this. On Linux, you can just use the unzip command. After unzipping, you should have an UPDATE.APP file. This is the full ROM update image which we will use.
  4. Extract BOOT.img from your ROM's UPDATE.APP using the Huawei Update Extractor tool (make sure to use the "Huawei Mediapad M2 (M2-802L)" profile in the Huawei Update Extractor tool) and save it somewhere on your computer's hard disk.
  5. Boot your phone into the bootloader - this is called "fastboot mode".
    • If you have ADB enabled, you can use the following command
      Code:
      adb reboot bootloader
    • If you don't have ADB set up, you can use the hardware keys method to enter the bootloader - first shut down the phone, and then press POWER+VOLDN simultaneously.
    • Of the two methods, I'd recommend the ADB method because it works every time (using the hardware keys method I had mixed success; sometimes it would boot into the bootloader and sometimes it would boot into the normal ROM.
  6. With the USB cable connected to your phone, open up a command prompt in the directory where you extracted BOOT.img, and run the following fastboot command:
    Code:
    fastboot flash boot BOOT.img
  7. Reboot your computer:
    Code:
    fastboot reboot
And that's it, you should now be unrooted.

DPI/LCD Density Change:
If you're rooted, you can change the DPI/LCD density. If you're going to attempt this, I'd suggest making a TWRP backup first just in case your phone does not boot after changing the DPI/LCD density.
A big Thanks to Eagle-no1 for testing that a DPI/LCD Density Change to 380 and also 360 works without issues for him. The full thread is here.
To do this manually, you will find the DPI settings in /system/build.prop with these original values:
Code:
ro.sf.lcd_density=480
hw.lcd_density=480
Simply change the above so that it looks like this:
Code:
ro.sf.lcd_density=360
hw.lcd_density=360
and then reboot your device, and you should be good to go.

Have fun!

Issues/Problems Noticed
  1. XDA user @guille3073 has noticed a problem with the M2-802L and 5GHz WiFi Networks set to "AC-Only" mode, and I have verified the issue. Please see this post and the one before it. The solution is to change your 5GHz WiFi band to be in "Mixed" mode or "N-Only" mode. Thanks, guille3073! If anyone else notices this issue on a different device model than the 802L, please mention it in the comments to it can be added here. Update: User @lepidas reports the same issue on the 801L as well.


Instructions to recover from a bad ROM install/softbrick/bootloop:
First, make sure that you have known good official Huawei ROM for your particular device model. Then, follow the instructions (replace all references to the ROM version with the correct ROM for your device) in this post. Note: The detailed guide for extracting and flashing specific partitions from Huawei ROMs is here. Wish you good luck in your unbricking efforts.


WHOIS INFO:
Code:
Queried whois.markmonitor.com with "hicloud.com"...

Domain Name: hicloud.com
Registry Domain ID: 1429950708_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2016-05-03T10:37:45-0700
Creation Date: 2008-03-22T06:56:43-0700
Registrar Registration Expiration Date: 2023-03-22T06:56:43-0700
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Domain Status: serverUpdateProhibited (https://www.icann.org/epp#serverUpdateProhibited)
Domain Status: serverTransferProhibited (https://www.icann.org/epp#serverTransferProhibited)
Domain Status: serverDeleteProhibited (https://www.icann.org/epp#serverDeleteProhibited)
Registry Registrant ID: 
Registrant Name: Domain Administrator
Registrant Organization: Huawei Technologies Co., Ltd.
Registrant Street: Huawei Base, Bantian, Longgang District
Registrant City: Shenzhen
Registrant State/Province: Guangdong
Registrant Postal Code: 518129
Registrant Country: CN
Registrant Phone: +86.75528560097
Registrant Phone Ext: 
Registrant Fax: +86.75528560390
Registrant Fax Ext: 
Registrant Email: [email protected]
Registry Admin ID: 
Admin Name: Domain Administrator
Admin Organization: Huawei Technologies Co., Ltd.
Admin Street: Huawei Base, Bantian, Longgang District
Admin City: Shenzhen
Admin State/Province: Guangdong
Admin Postal Code: 518129
Admin Country: CN
Admin Phone: +86.75528560097
Admin Phone Ext: 
Admin Fax: +86.75528560390
Admin Fax Ext: 
Admin Email: [email protected]
Registry Tech ID: 
Tech Name: Domain Administrator
Tech Organization: Huawei Technologies Co., Ltd.
Tech Street: Huawei Base, Bantian, Longgang District
Tech City: Shenzhen
Tech State/Province: Guangdong
Tech Postal Code: 518129
Tech Country: CN
Tech Phone: +86.75528560097
Tech Phone Ext: 
Tech Fax: +86.75528560390
Tech Fax Ext: 
Tech Email: [email protected]
Name Server: ns4.dnsv5.com
Name Server: ns3.dnsv5.com
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2017-01-10T01:10:48-0800 <<<
A big big shoutout to Team MT and XDA user gmanrainy for the Huawei Firmware Finder tool available here on XDA - I wish I had known about this earlier when I was manually searching the Huawei servers for ROMs
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10th January 2017, 10:34 AM |#2  
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Excellent thread, great work beast.in.black! that firmware tool is a great find
10th January 2017, 10:35 AM |#3  
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In my 10" current (latest) version is M2-A01WV100R001C100B007 Android 5.1.1, but update zip seems to be only 56Mb?
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10th January 2017, 10:38 AM |#4  
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Quote:
Originally Posted by mele80

In my 10" current (latest) version is M2-A01WV100R001C100B007 Android 5.1.1, but update zip seems to be only 56Mb?

It might not be a full update - for example, on my 802L, B003 was a full update, but B005 was an OTA partial update and not a full system image update.
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10th January 2017, 10:40 AM |#5  
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Quote:
Originally Posted by omaga

Excellent thread, great work beast.in.black! that firmware tool is a great find

Isn't it just! I found it by accident on Google when I was trying to search for Marshmallow ROMs for our devices. I was like"Oh yeah, these guys are awesome!"

Big thumbs up to Team MT for the work on the Firmware Finder tool!
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10th January 2017, 11:04 AM |#6  
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How i root my M2-801L there no OEM lock open possibility of the developer's settings.
10th January 2017, 11:23 AM |#7  
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Quote:
Originally Posted by Eagle-no1

How i root my M2-801L there no OEM lock open possibility of the developer's settings.

Did you try pressing the build number about 8 times in quick succession? Which ROM version are you using?

You will find the build number in "settings" -> "About tablet". Just press on the actual build number (the stuff that says "M2-801Lblabla") about 7 or 8 times quickly, and it should show a message saying that you are a developer.
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10th January 2017, 11:45 AM |#8  
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I had the B205 firmware in my M2-801L, now i downloaded/and installed the B202 version and its seems to be a newer firmware version. B205 kernel is dated Jul 28 2016 and the android security patch is dated 1 july 2016, baseband is 21.600.23.00.010.
Now with the B202 firmware the kernel is dated Mon 7 Nov 2016 and the android security patch is dated 1 oct 2016, baseband 21.600.27.00.010
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10th January 2017, 12:07 PM |#9  
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Quote:
Originally Posted by beast.in.black

Did you try pressing the build number about 8 times in quick succession? Which ROM version are you using?

You will find the build number in "settings" -> "About tablet". Just press on the actual build number (the stuff that says "M2-801Lblabla") about 7 or 8 times quickly, and it should show a message saying that you are a developer.

Build number M2-801LC100B205 and tapped eight times.
No OEM Unlock selection choice developer options.
10th January 2017, 12:09 PM |#10  
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Quote:
Originally Posted by omaga

I had the B205 firmware in my M2-801L, now i downloaded/and installed the B202 version and its seems to be a newer firmware version. B205 kernel is dated Jul 28 2016 and the android security patch is dated 1 july 2016, baseband is 21.600.23.00.010.
Now with the B202 firmware the kernel is dated Mon 7 Nov 2016 and the android security patch is dated 1 oct 2016, baseband 21.600.27.00.010

Good to know, thank you! I will update the original post accordingly.
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10th January 2017, 12:21 PM |#11  
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Quote:
Originally Posted by Eagle-no1

Build number M2-801LC100B205 and tapped eight times.
No OEM Unlock selection choice developer options.

omaga reports that B202 seems to have newer content than B205. Can you try B202 and see?
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huawei, huawei mediapad m2, m2 8.0, marshmallow 6.0, stock

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