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Everything Huawei Y550 - Root/CWM/TWRP

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szty0pa

Member
Sep 18, 2015
45
24
Having some spare time, I've given this phone another try. Sadly, I don't get anywhere. :(

[...]

How do I go about doing this? How can I flash partitions when the phone thinks it's locked?

I feel like having all the puzzle's pieces, but being unable to actually put them together. Very frustrating :(. Do you have any advice?

Uh-oh. The good news is that the bootloader works still but the bad news is that the flash in your phone is indeed physically corrupted/unstable.
At the moment it seems the bootloader lock is activated with a probably random key because of incidentally flipped bits.

I don't know what to do honestly... You could either try to brute-force unlock your phone, but that will only last until the next accidental bit-flip or if you are really desperate you could probably solder out the flash memory from the mainboard and try to get and solder in another one of the same type. I don't think it would worth the hassle though... :(

Sorry for not being able to help, this is a whole new puzzle we don't have the pieces for. :/
 
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tezzar

Member
Nov 5, 2013
30
0
Tutorial update

Hello all,

After the may-2021 security patches were merged into LineageOS 14.1, I immediately started the build for our Y550 devices.
It promptly failed saying
Code:
SSL error when connecting to the Jack server. Try 'jack-diagnose'.

Thanks to StackOverflow a quick fix was around the corner. Apparently, Ubuntu (or openjdk-8) received an update putting TLSv1 and TLSv1.1 on some sort of blacklist. This fix removes them from that list.

I have edited my build tutorial accordingly. While there, I also revised all hyperlinks and updated, among other things, the local manifest entries.

Kind regards,
FWieP
is flashing this onto a rooted Y550 fairly easy? I have a Y550 4G MX that I put CarbonROM onto years ago, it's too old Android 4.4.4 :(... but I forget everything about how I did it so I don't know which guide to use. I'd guess I'll be losing everything on the phone but that's ok.
 

fwiep

Senior Member
Nov 17, 2016
142
211
www.fwiep.nl
is flashing this onto a rooted Y550 fairly easy? I have a Y550 4G MX that I put CarbonROM onto years ago, it's too old Android 4.4.4 :(... but I forget everything about how I did it so I don't know which guide to use. I'd guess I'll be losing everything on the phone but that's ok.
Hi Tezzar,

The basic flashing procedure is not that difficult. The tutorial I linked to is for building the actual ROM, see my last post for example.
This thread's first posts are an excellent summary of downloads and instructions.
  1. Unlock the bootloader (in fastboot mode)
  2. Download and flash TWRP as the phone's new Recovery (in fastboot mode)
  3. Boot into TWRP recovery
  4. Download the modem image and flash it
  5. Download the current ROM and flash it
This should give you a Y550 device with an up-to-date LineageOS 14.1 (Android 7.1.2).
Note that there are probably some/many vendor-related security issues - those cannot be fixed by the LineageOS developers (or myself).

If you want root access, you could download the su (arm) 14.1 and flash the LineageOS root add-on.

Good luck and kind regards,
FWieP
 

CJROM996

New member
Jul 3, 2021
3
2
Hello friend I congratulate you for your great work, I have an error when I want to flash the room "lineage-14.1-20210608-wg-UNOFFICIAL-y550.zip" in Y550 L03, I am using the TWRP 3.5.1_9-0 recovery and the error is the next:
Error.jpeg
 

fwiep

Senior Member
Nov 17, 2016
142
211
www.fwiep.nl
Hello friend I congratulate you for your great work, I have an error when I want to flash the room "lineage-14.1-20210608-wg-UNOFFICIAL-y550.zip" in Y550 L03, I am using the TWRP 3.5.1_9-0 recovery and the error is the next
Code:
This device is .
Hello,

The ROM is specifically built for the Y550 and its variants L01, L02 and L03.

You say you're using a L03, but TWRP doesn't seem to know that. It says "This device is <blank>."
I have never seen such a message. What did you do before trying this flash?

Can you return to stock, then wipe and flash again?

Good luck and kind regards,
FWieP
 

pndwal

Senior Member
Hello friend I congratulate you for your great work, I have an error when I want to flash the room "lineage-14.1-20210608-wg-UNOFFICIAL-y550.zip" in Y550 L03, I am using the TWRP 3.5.1_9-0 recovery and the error is the next:
& @fwiep

For L02, L03 official twrp gives these errors (seems original Dev was only concerned with L01). For these variants, use last Unofficial TWRP 3.1.1.0, Dec. 16 2017 by desalesouche for flashing. (Swap back to official to see adopted storage, etc.)

I commented about this in this post:
https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-77745275

Working link here (Custom Recovery section)
https://forum.xda-developers.com/t/huawei-y550-development.3425524/post-67893946

New thought:

During the years I used Y550 I (and others) battled with lag / instability. I never did consider F2FS loopback bug, but formatted my data partition this way in twrp simply because I could w/ LOS!

I would definitely be trying LOS with original EXT4 formatting now that I understand this bug / problem!

🤠 PW
 
Last edited:
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pndwal

Senior Member
...
My personal Y550-L01 has given up; permanently, so it seems. Yesterday, I was happily testing the WG stuff and switched it off using the power menu. This morning, there was no life in the device at all. Connecting the charger should boot up to show a loading animation, but does nothing. The battery itself is fully charged at 3,7V. I've taken the device apart to see if there's nothing obviously defective or loose - there isn't.

Update - when connected to a PC via USB, the device is detected as QHSUSB__BULK.
So, there's hope after all. I'm searching XDA for further instructions.

I hope my second Y550 will return to me in a few days time, but until then... I won't be able to test myself what I upload right here on the forum.

If any of you know a reanimation trick for a 7-year old smartphone - please tell me!

Kind regards,
FWieP
Just saw this...

Here's some stuff I posted re DLoad and other emmc fixing methods / utilities... All a bit hazy now... (divide page numbers by 2 for old XDA page references 😉 ):
https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-81961393

... Found earlier info; may be useful to scan one next couple of pages from this:
https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-76222455

PW
 

CJROM996

New member
Jul 3, 2021
3
2
Hello,

The ROM is specifically built for the Y550 and its variants L01, L02 and L03.

You say you're using a L03, but TWRP doesn't seem to know that. It says "This device is <blank>."
I have never seen such a message. What did you do before trying this flash?

Can you return to stock, then wipe and flash again?

Good luck and kind regards,
FWieP
I have returned to the TWRP 2.8.7.0 recovery to try to flash your rom but it has failed, I have tried with @desalesouche rom the compilation "lineage-14.1-20170702-y550" and it has flashed correctly, finally I have flashed stock rom of @ HB72K and it has been installed successfully. Model: Huawei Ascend Y550-L03. I assume that it is a Recovery problem, I will try the version 3.1.1 that @pndwal comments and I will report if I have any problem.
 
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CJROM996

New member
Jul 3, 2021
3
2
For L02, L03 official twrp gives these errors (seems original Dev was only concerned with L01). For these variants, use last Unofficial TWRP 3.1.1.0, Dec. 16 2017 by desalesouche for flashing. (Swap back to official to see adopted storage, etc.)......
Indeed it has been a recovery problem, I have flashed TWRP 3.1.1.0, Dec. 16 2017 and the rom was installed without problem:
Report:
- Calls: ok
- Bluetooth: ok
- Wifi: ok, (The file "WCNSS_qcom_wlan_nv.bin" is needed to improve the scope. Place it in the following address in case someone does not know this: / system / etc / firmware / wlan / prima /)
- Gyroscope: ok
- Camera: ok (Photo and video)
- Sound: ok
- Battery consumption: Testing ... (It seems that the consumption has improved)
- Turning on the phone: In 1 occasion I stayed on the Huawei Ascend home screen. (It is solved by removing the battery and restarting it)
- Open Gapps arm 7.1 pico: ok
- Administrative access in developer options: ADB only (There is no Applications option)
- Root: ----
Thank you very much, do you know which file to flash for root?
 

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  • 1
    Hello,

    The ROM is specifically built for the Y550 and its variants L01, L02 and L03.

    You say you're using a L03, but TWRP doesn't seem to know that. It says "This device is <blank>."
    I have never seen such a message. What did you do before trying this flash?

    Can you return to stock, then wipe and flash again?

    Good luck and kind regards,
    FWieP
    I have returned to the TWRP 2.8.7.0 recovery to try to flash your rom but it has failed, I have tried with @desalesouche rom the compilation "lineage-14.1-20170702-y550" and it has flashed correctly, finally I have flashed stock rom of @ HB72K and it has been installed successfully. Model: Huawei Ascend Y550-L03. I assume that it is a Recovery problem, I will try the version 3.1.1 that @pndwal comments and I will report if I have any problem.
    1
    For L02, L03 official twrp gives these errors (seems original Dev was only concerned with L01). For these variants, use last Unofficial TWRP 3.1.1.0, Dec. 16 2017 by desalesouche for flashing. (Swap back to official to see adopted storage, etc.)......
    Indeed it has been a recovery problem, I have flashed TWRP 3.1.1.0, Dec. 16 2017 and the rom was installed without problem:
    Report:
    - Calls: ok
    - Bluetooth: ok
    - Wifi: ok, (The file "WCNSS_qcom_wlan_nv.bin" is needed to improve the scope. Place it in the following address in case someone does not know this: / system / etc / firmware / wlan / prima /)
    - Gyroscope: ok
    - Camera: ok (Photo and video)
    - Sound: ok
    - Battery consumption: Testing ... (It seems that the consumption has improved)
    - Turning on the phone: In 1 occasion I stayed on the Huawei Ascend home screen. (It is solved by removing the battery and restarting it)
    - Open Gapps arm 7.1 pico: ok
    - Administrative access in developer options: ADB only (There is no Applications option)
    - Root: ----
    Thank you very much, do you know which file to flash for root?
    1
    - Root: ----
    Thank you very much, do you know which file to flash for root?
    Flash Magisk!

    Everything you need is here:
    https://github.com/topjohnwu/Magisk

    👍 PW
    1
    Hi all,

    There will be a delay in my building the updated LineageOS 14.1 ROM with june 2021's security patches, although the sources are available. My build machine is not available and will not be for several weeks.

    Please feel free to build the ROM by yourself; there is a detailed tutorial available.

    I'll be back :)

    Kind regards,
    FWieP
  • 52
    Thread Index

    Rooting, CWM & TWRP Instructions LINK

    Latest TWRP
    TWRP 2.8.7.0 21/8/15 - CM12 compatible
    2.8.7.0 Final 25/1/16
    Older TWRP TWRP 2.8.4.1 31/1/14 - CM11 compatible
    Latest CWM 9/12/14
    Latest Superuser 9/12/14
    Latest Slim SDK 9/12/14

    Stock Rom Recovery Link (Install through fastboot - fastboot flash recovery recovery_y550.img)
    Updated LInk Here

    Latest Y550 (L01) Stock Rom
    5/11/14 Western Europe
    16/1/2015 Eastern Europe & Scandinavia

    Normal upgrade/reinstall using in built updater Link
    Forced upgrade/reinstall procedure Link
    Upgrade/Reinstall using Fastboot Link

    Google Stock Apps Link

    All Huawei y550 related apps and files (thanks to klaidone) Link

    Alternate unlock code methods Link Link
    And another Link


    L02 Files
    All At this URL
    Files:
    Update.zip - the latest OTA update for L02 Region Phones - Applied using inbuilt updater
    Y550-L02 Stock - CWM backup of the original L02 Stock Rom Link
    Y550-L02 (Build 346) - CWM Backup of the most up to date L02 Rom Link
    Credits to Happychappy on the Whirpool Forum
    Y550 (Prob L02) TWRP Stock Backup

    Faq/Tips
    Will the L01 rooting method work on my L02 Yes
    Can I change the Boot Animation? Link (And the following post)
    Can I use L01 firmware on my L02? Link
    Can I change the status bar and carrier logo? Link
    Does Exposed framework work on this phone? Link
    How do i remove the Kitkat write restrictions? Link

    Roms from HB72K

    Stable and suitable for everyday use. More information, install instructions, root etc from user @HB72K in This post

    AOSP Based Roms
    Carbon Rom from Hb72k Link & Install instructions - Known Bugs: Phone only rings once then mutes

    Stock Based Roms
    Y550 Stock Rom by Hb72k Link
    Y550 Stock Lite by Hb72k Link
    Y550 Stock (Gstock 2) by Hb72k Link
    Y550 Stock (Gamer 2) by Hb72k Link

    MIUI Based Roms
    MIUI 7 by Hb72k Link
    MIUI 6 by Hb72k Link

    CM Roms

    CM11 - Final XDA Build by Hb72k link
    Hecaex Build - 11 June 2015 Link Doesnt include Static Mac Address fix
    Hecaex Build - 30 May 2015 Link This is based on Patrick's march build with Camera modifications. Working Wifi (Random Mac), Camera working (But flash not working)
    Patrick KT Build - 11 March 2015 (CM11) Link - Wifi working but with random Mac. Camera not working
    Hecaex Build - 10 February 2015 (CM11) Link - Camera flakey, superuser and torch not working
    Patrick KT Build - 1 February 2015 (CM11) Link - Wifi and Camera not working

    Static Mac Address Fix Link
    Camera Patch Only Link

    2016 Roms

    Modded EMUI 3.0 https://mega.nz/#!Dt4gGQCD!zEvIGHsuZURN7Xl9F3LnAdRDviTo-BLzC0n42YH9ZjM
    Modded Miui 7.0 (Twrp backup) https://drive.google.com/folderview?id=0BzJ-jN4Pv2baSXFwRFpqcGoySUE&usp=sharing
    CM Patches/Fixes
    EMUI (Hb72k) http://forum.xda-developers.com/showpost.php?p=65241854&postcount=2268
    Pacman (hb72k) http://forum.xda-developers.com/showpost.php?p=65327203&postcount=2281
    Pacrom (Jeffta) http://forum.xda-developers.com/showpost.php?p=65353386&postcount=2284
    Miui7 (Dabi01 almost final) http://forum.xda-developers.com/showpost.php?p=65702075&postcount=2334



    Other Files

    Walkman (Zip) for Stock and Custom Roms Link

    IVE BRICKED MY PHONE!
    Download the full Huawei Y550 rom from Here (You want the penultimate file - y550 build 239
    Download the Huawei update extractor from the same link
    Run update extractor and extract the rom
    Copy the entire folder "dload" to the root of your sdcard (so there is a folder on your sd card called dload containing the update file)
    Hold down all physical buttons on your phone - volume up, volume down and power at once
    24
    DISCLAIMER - THIS CWM AND ROOT METHOD IS DESIGNED FOR THE G620 - IT IS ESSENTIALLY THE SAME PHONE BUT LIKE ANYTHING THERE ARE ALWAYS RISKS WITH INSTALLING CWM AND ROOTING YOUR PHONE. IT WORKED FOR ME, BUT I BEAR NO RESPONSIBILTY IF IT DOESNT WORK FOR YOU, BRICKS YOUR PHONE, OR TURNS YOU INTO A PUMPKIN.

    Ok, rooting the Huawei Y550..
    Source Credits Here and Here
    Originally this is the boot image for the G620 but it has the same partition table as the Y550

    Three step method - first you need your bootloader unlocked, then CWM installed, then superuser installed.

    First you will need your bootloader unlocked. You can get this by emailing Huawei
    to get your unlock email Huawei on [email protected]

    Send them a request for bootloader unlock with the following info:
    Serial Number: under battery
    IMEI: under battery
    Product ID: call * # * # 1357946 # * # * to get it
    Model: HUAWEI Y550-L01

    Once you have your code...
    switch device off
    boot into fastboot mode "volume down and power"
    connect by usb to your PC
    wait for drivers to install (just install the huawei app to get the drivers)
    download and install ADB toolkit from google (or Android SDK Slim which ive attached as a zip)
    open the directory adb toolkit is in, shift and right click and select open command window
    type in... fastboot oem unlock 1234567812345678 where the number is your unlock code
    Your bootloader will now be unlocked. Source and more info

    Update: Alternate way to get the unlock code Link

    UPDATE - TRWP RECOVERY
    We now have TWRP thanks to patrik.KT. Source
    1) Download the TWRP Image file Link
    2) Place the image file in the same directory as fastbook.exe from the previous step
    3) Connect phone in fastbook mode
    4) Check compatability by booting only initially.
    Code:
    fastboot boot TWRP_y550_20150130.img
    5) if boots correctly go back into fastbook mode and run in the dos window
    Code:
    fastboot flash recovery TWRP_y550_20150130.img

    CWM Recovery
    Zip file download Link
    Extract zip file to computer
    Put phone in fastboot mode (Down volume and power button)
    Connect phone to PC and run the file - install-windows.bat
    This will install a CWM boot to your phone and then reboot it

    Contents of zip showed up clean with McAfee
    23rl4wm.png


    Superuser
    Dowloaded superuser.zip from HERE
    (Do not use Super-SU it doesnt work with stock roms)
    copy superuser.zip to your SD card.
    Boot into CWM (Volume up and power key)
    select english language if prompted
    install zip from SD card and install superuser.zip

    Boom....
    21cun13.jpg
    alkh3n.jpg


    Phone has CWM and Root.
    Only downside is parts of the CWM (notably the backup section) are in chinese

    Translation for backup section is:

    backup image to internal SD
    restore image from internal SD
    delete image from internal SD
    restore image with options from internal SD
    backup image to external SD
    restore image from external SD
    delete image from external SD
    restore image with options from external SD
    14
    Things to do after rooting

    A few comments now that I've rooted one of my Y550 phones:

    First thing I did was to permanently nuke the file restrictions on writing to the SD card, this was easily achieved in seconds. Now everything can read/write to the external SD card just like in every other release of android.
    *This was the main frustration and reason pushing me to root the phone.

    Next was to change the screen DPI to make everything look less blobby.
    After going through settings of 230, 220, 215 and 210 I've found that on the default Huawei EMUI launcher anything lower than 230 looks odd, although 220 is probably usable.
    With a setting of anything less than 220 the desktop icons are shifted into strange positions which is quite off putting, and having only 4 rows of desktop icons looks kind of odd when the icons are shrunk, there is easily enough room for 5 rows, on Nova launcher mine is set to 6 rows and it looks great.
    As always Nova cures most of the visual ills that appear in the supplied manufacturers launchers, so no problems...
    Anyone considering the Y550 should disregard any the negative comments from those who proclaim the screen is crap..!!!
    Obviously it is very slightly lower resolution than some models, but if you don't hold it next to another phone with a higher resolution screen to compare against then I can't imagine anyone would know.

    Running MX Player Pro the Y550 can easily play H.264 1080P videos scaled to full screen.
    *In MX Player Pro I set the sound playback for S/W Audio, the volume can then be increased to 200% which is great. I set the video to playback using H/W+ decoder which is impressive. The Y550 quad core combined with a better GPU obviously helps with smooth media playback. Using AllCast to playback video through the LAN to a big screen is also very smooth, it works a treat.

    And to top off my first round of rooting fun I installed AdFree to get rid of the nasty adds that appear in many apps, together with an old favourite called BatteryCalibration which is always worth running after installing CWM or TWRP.
    :good:

    ---------- Post added at 01:14 PM ---------- Previous post was at 01:08 PM ----------

    A quick "How to" describing the method for removing the stupid KitKat write restrictions on the External SD card.

    Perhaps a disclaimer first to say that if any of the following seems like techno-babble you should NOT do this, just leave it the way google intended it to be, or find a local droid geek to assist you...

    Out of habit I use ES File Explorer to edit my android system files directly on the device, it has a decent enough text (note) editor and also has the easiest way to visually confirm that the file permissions are correctly set after you have edited/moved/copied files.

    ================
    WARNING: Incorrect file permissions are your biggest danger, the phone will probably not boot if they are set incorrectly.
    Whatever happens you should proceed with extreme caution! Recheck everything several times before rebooting...
    ================

    In ES File Manager toggle the "Root Explorer" to on, and then navigate to the following file:
    /system/etc/permissions/platform.xml

    Note: You deserve to have problems if you don't make a backup of the original file first, so make a copy of it in the user memory space or on the SD card.

    Then open the file in the ES note editor and scroll down until you find: android.permission.WRITE_EXTERNAL_STORAGE and android.permission.WRITE_MEDIA_STORAGE lines.
    In the ES text editor click the top right menu and chose the pen, this will give a cursor to allow you to write text.
    These are XML sections, you need to make them look exactly like the strings below:

    <permission name="android.permission.WRITE_EXTERNAL_STORAGE" >
    <group gid="sdcard_r" />
    <group gid="sdcard_rw" />
    <group gid="media_rw" />
    </permission>

    <permission name="android.permission.WRITE_MEDIA_STORAGE" >
    <group gid="sdcard_rw" />
    <group gid="media_rw" />
    </permission>

    Save the platform.xml file (do this by hitting the back hardware button once, it'll then ask if you want to save changes.
    Then exit the editor and refresh the directory listing, chose view and select "small detail" and make sure that platform.xml file permissions are set to "-rw-r--r--" (in geek speak it needs to be 644) before rebooting your phone.
    *Don't forget to turn off the "Root Explorer" toggle in ES File Manager after you have edited the file and confirmed the file permissions.
    That's it.

    Once again, if any of the above seems too hard then DON'T do it.

    *In the past I've tried apps from the playstore to perform this tweak on other devices, but none of them worked, so now I just do it myself, it only takes a couple of minutes to edit the file.

    =========================
    DISCLAIMER – THERE ARE ALWAYS RISKS WITH EDITING SYSTEM FILES, IT WORKED FOR ME, BUT I BEAR NO RESPONSIBILITY IF IT DOESN'T WORK FOR YOU, BRICKS YOUR PHONE, OR TURNS YOU INTO A WOMBAT.

    ---------- Post added at 01:19 PM ---------- Previous post was at 01:14 PM ----------

    ==================================

    I hope the above posts are helpful for those who've never edited system files before...
    It's bit scary the first couple of times, but it you take it slow and steady it is not hard at all.

    It's basically the same method for changing the display DPI, you'll need to edit the /system/build.prop file and look for this line:

    ro.sf.lcd.density=240

    and change the "240" to anything between 240 ~ 200 then reboot.

    Simple as...
    Just remember to check those file permissions before you reboot :good:

    =================
    Don't forget to press the THANKS button if any of this helped you ;)

    ---------- Post added at 01:30 PM ---------- Previous post was at 01:19 PM ----------

    I have achieved 7020p & 1080p resolution on Huawei Y550, I would advise 720p over 1080p as it is alot clearer on this little screen....

    Yours was an interesting post, I would never have considered trying to set a non native resolution on the device. I imagine this would cause all sorts of problems that could be hard to solve.

    If your intention is only to increase the information shown on the screen, then I think it is a much better idea to change the display DPI rather than setting a totally different screen resolution. The chances of upsetting the system are far less and there is no need for busybox, or soft keys because everything still works as it should...
    11
    So guys it's been a while but I'm working on CM12.1. But I'm quite busy with my job, so please be a little more patient ;) .
    I've got a new TWRP and I have a booting CM12.1. But there are some major things which need to be fixed.
    I will push some test build with new TWRP later.
    11
    So I noticed you dont have any working TWRP on the Y550, so I made one :cowboy:

    Make sure you only boot it first to check if its compatible
    Code:
    fastboot boot TWRP_y550_20150130.img
    and if it works just fine, then flash it
    Code:
    fastboot flash recovery TWRP_y550_20150130.img

    Download: https://docs.google.com/file/d/0B5KRmU8P96dlYTc4eS11QXItdlU/edit