Everything Huawei Y550 - Root/CWM/TWRP

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Blank tape

Member
Oct 5, 2014
27
8
Yep I've the same problem, error message when trying to flash lineage-14.1-20210803-UNOFFICIAL-y550.zip.

I thought fwiep fixed that but as I never tested that or subsequent versions I can't confirm the fix works. Finally, taking a looking at the most recent zip and the fix itself it does something different to what I suggested so I'm guessing not. Sorry to provide such late feedback Frans!

Anyway, I worked around the problem with a setprop command in adb shell:
setprop ro.product.device Y550-L02

This must be done before an install is attempted. It seems values are cached.

FWIW, I used twrp-3.3.0-1-y550 back then.
 
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Blank tape

Member
Oct 5, 2014
27
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To pose a question myself: Is there a way I can use to return the phone back to B240 stock. B247 changed the boot process in such a way that while flashing TWRP in fastboot appears to work it does not replace the stock recovery.
 
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Sign1

Senior Member
Jun 3, 2022
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Did you confirm you have 3.1.1?... How are you installing the twrp?... Are you first extracting the .img file, then flashing that to recovery partition as .img? PW
Unofficial TWRP 3.1.1.0, Dec. 16 2017 by desalesouche ===> Post

That is the correct TWRP file above; it is a zip file, not img.

Did you confirm you have 3.1.1?... How are you installing the twrp?

I installed the above TWRP 3.1.1.0 using the zip file install method in my current installed TWRP on my phone so via TWRP.

Are you first extracting the .img file, then flashing that to recovery partition as .img?

Where do I extract the img file from?

My assumption is to extract the recovery image file from your latest custom ROM, and then flash it to either my boot or recovery partion on my phone using my current installed TWRP on my phone. Is this correct.

Then flash your latest custom ROM.
 

pndwal

Senior Member
Unofficial TWRP 3.1.1.0, Dec. 16 2017 by desalesouche ===> Post

That is the correct TWRP file above; it is a zip file, not img.
No, it's only uploaded as a zip... Extract the img file and use that. 🙃
Did you confirm you have 3.1.1?... How are you installing the twrp?

I installed the above TWRP 3.1.1.0 using the zip file install method in my current installed TWRP on my phone so via TWRP.
Does the splash screen confirm you now have 3.1.1_0?

Via current twrp yes, as zip no ... Change flash type to.img and flash extracted.img file...
Are you first extracting the .img file, then flashing that to recovery partition as .img?

Where do I extract the img file from?
From the zip archive...
My assumption is to extract the recovery image file from your* latest custom ROM,
Does it include recovery?
and then flash it to either my boot or recovery partion on my phone using my current installed TWRP on my phone. Is this correct.
Correct method via TWRP is flash recovery.img to recovery partition generally for our device, never to boot partition...
Then flash your* latest custom ROM.
Can flash ROM or recovery first... Order doesn't matter afaik.

*ROMs are from @desalesouche / @fwiep... PW
 
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Sign1

Senior Member
Jun 3, 2022
80
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Blank tape, pndwal, fwiep....

Guys, many many thanks for all your input these last few weeks and days.


Without your help, I would never ever been able to transform this old phone into what it is today.

My kid is over the moon.

We have left one as stock, and the other in custom 7.12 format.

pndwal your latest custom ROM works a treat. 7.1.2.

Any chance of 8.1 in the future.(y)(n):)


Took this old dog a while to get it all working, learnt a bit myself.

Cheers fellas.
 

pndwal

Senior Member
Blank tape, pndwal, fwiep....

Guys, many many thanks for all your input these last few weeks and days.


Without your help, I would never ever been able to transform this old phone into what it is today.

My kid is over the moon.

We have left one as stock, and the other in custom 7.12 format.
Take it you got twrp swap working then...
pndwal your latest custom ROM works a treat. 7.1.2.
Again, ***ROMs are from @desalesouche / @fwiep*** - not mine!
Any chance of 8.1 in the future.(y)(n):)
Most likely not... This ROM is / was a port from Cherry/ Honour 4/4x by @Blefish. @desalesouche tried hard to unify Y550/Cherry (Cherry got LOS 15) but wasn't able, and we haven't heard from him for some time...
- https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-75686423
- https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-75653764


@fwiep's updates basicy build with the current security patches and a few other improvements from Google, LineageOS and his own kernel fixes, etc...
Took this old dog a while to get it all working, learnt a bit myself.

Cheers fellas.
👍 PW
 

pndwal

Senior Member
To pose a question myself: Is there a way I can use to return the phone back to B240 stock. B247 changed the boot process in such a way that while flashing TWRP in fastboot appears to work it does not replace the stock recovery.
This may depend on xloader version of both (can't roll back to earlier) as seems Huawei started implementing anti-rollback with this device... I read reports of several issues for B249...
Nb. Some have permanently bricked their devices (no methods to restore work) after rolling back to a ROM with older xloader, or flashing a ROM with different xloader.

WARNING To Others who want to customise Y550:
It seems Huawei updated XLoader on B249 and later in a number of regions. Problems relate to xloader.img updates to bootloader from version 0 to version 1 or version 1 to version 2 which prevents rollback to earlier ROM's using lower xloader versions, and other patches that break root (though magisk now has a workaround requiring manual creation of boot.img), as well as problems using TWRP and custom ROMs (which have been made using lower XLoader), and unlocking bootloader with legacy (the only) methods.

But are you sure recovery isn't just being replaced on system boot (also common practice)? ... Usually booting immediately to twrp after initial installation allows twrp to install it's fix for this, or simply installing magisk... Still, it could be a bootloader thing as similar issues are reported for B249... PW
 

Sign1

Senior Member
Jun 3, 2022
80
12
Yep bud, got the unzipped 3.1.1.1.0 TWRP working.

I did a full format of the phones drive in TWRP 3.5.1_9-0.

I then installed the TWRP 3.1.1.1, then installed the latest ROM without issue.

A big thankyou to desalesouche and fwiep for providing the custom Rom's.

I've not installed the zipped modem update yet, is it worth it, will it enhance anything on the phone.

I have noticed even though the custom ROM package is so much smaller than the Stock ROM package. It does not increase storage space on the phone itself very much does it.
 

pndwal

Senior Member
Yep bud, got the unzipped 3.1.1.1.0 TWRP working.

I did a full format of the phones drive in TWRP 3.5.1_9-0.

I then installed the TWRP 3.1.1.1, then installed the latest ROM without issue.

A big thankyou to desalesouche and fwiep for providing the custom Rom's.

I've not installed the zipped modem update yet, is it worth it, will it enhance anything on the phone.
You will have call / network / LTE issues on post Android 4.4 ROMs if you don't... Your call...
I have noticed even though the custom ROM package is so much smaller than the Stock ROM package. It does not increase storage space on the phone itself very much does it.
No... You should review my notes on this / setect appropriate GApps package / update Gapps or systemise updates regularly / use adopted storage... This was debated, but for me it's essential on Y550... PW
 

Sign1

Senior Member
Jun 3, 2022
80
12
You will have call / network / LTE issues on post Android 4.4 ROMs if you don't... Your call...

No... You should review my notes on this / setect appropriate GApps package / update Gapps or systemise updates regularly / use adopted storage... This was debated, but for me it's essential on Y550... PW
I will install the modem then.

I have not installed GApps, only for the reason as the four apps needed, i have the latest apk's, so I did not see the point.
Would you disagree?
 

pndwal

Senior Member
I have not installed GApps, only for the reason as the four apps needed, i have the latest apk's, so I did not see the point.
Would you disagree?
As you say, it depends on what you want / need...

For me personally, I like / need to have a number of Google apps incl. Chrome browser, Webview, Maps etc, Play Store access to apps / updates, Safety net API (in Google play services) working for bank app, etc etc...

Moreover, Android w/ proprietary Google apps may be fine for a TV box or an automobile interface, but as Google's mobile OS a Smartphone is pretty much crippled (or dumbed down at least) w/o their proprietary offerings in my view... (I note that many Chinese install custom mods / ROMs just to obtain GApps otherwise not available to them!)

Others have a different view... Each to his own... 🙂 PW
 

Sign1

Senior Member
Jun 3, 2022
80
12
I installed the modem zip.
Got a big problem though. I never tried to make or recieve calls prior to installing the modem zip, but I tried to call the phone tonight and i cannot recieve calls or make calls?
Any thoughts.
 

Sign1

Senior Member
Jun 3, 2022
80
12
I just did a TWRP restore back to stock rom. Same problem no incoming or outgoing phone calls on stock rom restore.

Has the modem update caused an issue with L02?

Something not right.

Baseband is 11060045

Mobile network state - disconnected
 

pndwal

Senior Member
I just did a TWRP restore back to stock rom. Same problem no incoming or outgoing phone calls on stock rom restore.

Has the modem update caused an issue with L02?

Something not right.

Baseband is 11060045

Mobile network state - disconnected
Pasted:
"All New users need to update (flash) modem partition. It is not updated with ROM. Only need to do this once. Flash 4XQWT_LP_Modem Baseband Version: 11060045 "Recomended for Lollipop And Marshmallow ROMs", but needed for everything after KitKat. Download from Development thread above, see Modems, post #2."...

You should flash back stock modem for stock KitKat.

May need to set network manually by going to settings>more>Cellular networks>Preferred network type>

Check set to GSM/WCDMA/LTE or something appropriate for your region... (just set to LTE phone may not receive calls) Nb. VoLTE is not available for Y550.

May need to reset network connections too, check SIM is recognised etc... PW
 

Sign1

Senior Member
Jun 3, 2022
80
12
Appologies for my post; it's the easiest way to outline my experiment and relay the results to you.

Three different sim cards/numbers all on this network - https://www.o2.co.uk/coveragechecker

Two phones

Phone One - Huawei Y550 - Unlocked/Rooted Android Version 7.1.0

Phone Two - Samsung GT S7275T - Unlocked/Rooted Android Version 8.1.0


Prior to rooting phone one and flashing the new zipped modem into Phone one; Sim card 3 could make and recieve calls in phone one.

I am not sure if I could make and recieve calls in phone one after rooting phone yet prior to flashing zipped modem into phone one.

The Sim card 3 was present in Phone one during the rooting and flashing modem process of phone one.

Could sim card 3 have been corrupted during rooting and flashing of phone one yet it works fine in phone two.


Sim card 3 in phone one cannot make or recieve calls and I am getting -

GSM Call settings/call forwarding/Voice - Network or sim card error

GSM Call settings/ - Network or sim card error


Phone One

Sim 1

CDMA Call setings are blanked out.

GSM Call settings are fine.

Sim 2

CDMA Call setings are blanked out.

GSM Call settings are fine.

Sim 3

GSM Call settings/call forwarding/Voice - Network or sim card error

GSM Call settings/ - Network or sim card error



Phone Two

Sim 1

CDMA Call setings are blanked out.

GSM Call settings are fine.

Sim 2

CDMA Call setings are blanked out.

GSM Call settings are fine.

Sim 3

CDMA Call setings are blanked out.

GSM Call settings are fine.
 

Sign1

Senior Member
Jun 3, 2022
80
12
Bought another L01 arrived today from eBay. So got a L02 on 7.1. A L01 on stock. Today's arrival my 3rd is going to 7.1.
I'll unlock the bootloader. Then custom it. There is a charity on eBay UK selling them Brand new at £27 so about $50 unblocked to any network. I just like the phone and for $56 rooted it suits my need's. Sentimental value also.
 

Blank tape

Member
Oct 5, 2014
27
8
Bought another L01 arrived today from eBay. So got a L02 on 7.1. A L01 on stock. Today's arrival my 3rd is going to 7.1.
I'll unlock the bootloader. Then custom it. There is a charity on eBay UK selling them Brand new at £27 so about $50 unblocked to any network. I just like the phone and for $56 rooted it suits my need's. Sentimental value also.
If you have some firmware not already on https://files.fm/u/gdmxigp please upload it. Others wiser than me would know the best format. Personally, I would use adb to copy images of all the partitions since I know no better.
 

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  • 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