Everything Huawei Y550 - Root/CWM/TWRP

[szty0pa]

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. :/

 

[tezzar]

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

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]

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]

Hi......

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]

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

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]

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

 

[pndwal]

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

Just a thought; I don't recall any problems using Magisk since this:
https://forum.xda-developers.com/t/everything-huawei-y550-root-cwm-twrp.2923318/post-80070420

PW

 

[pndwal]

...
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]

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.

 

[CJROM996]

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?

 

[pndwal]

- 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

 

[fwiep]

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

 

[fwiep]

Thanks to the LineageOS-developers this is today's build containing the June-2021 security patches.

Recent changes: LineageOS 14.1
Kernel: fwiep/android_kernel_huawei_y550

This ROM has Wireguard support built into the kernel.

ZIP: lineage-14.1-20210803-UNOFFICIAL-y550.zip
MD5: lineage-14.1-20210803-UNOFFICIAL-y550.zip.md5
ASC: lineage-14.1-20210803-UNOFFICIAL-y550.zip.md5.asc

Known bugs:
- the WiFi MAC-address sometimes switches between a Huawei-prefix 68:a0:f6 and an Airgo-prefix 00:0a:f5 on reboot
(I've observed this on a Moto G6 with RROS OTA, too - so it's probably a generic custom-ROM issue)

Kind regards,
FWieP

 

[GotoDengo]

Thanks to the LineageOS-developers this is today's build containing the June-2021 security patches.

Thanks again; it works like a charm.

 

[CJROM996]

Flash Magisk!

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

PW

Thanks! it worked perfectly.
Here are the steps for root access.
1- Install the magisk apk.
2- Extract the boot.img file that is inside the room .zip and pass it to the phone.
3- Open the magisk application, press install and patch the boot.img file that they passed to your phone, when the process finishes it will be saved in the downloads folder.
4- Enter the recovery TWRP 3.1.1 and flash the boot.img that generated magisk in the downloads folder
5- Restart and enjoy root access!

 

[pndwal]

Thanks! it worked perfectly.
Here are the steps for root access.
1- Install the magisk apk.
2- Extract the boot.img file that is inside the room .zip and pass it to the phone.
3- Open the magisk application, press install and patch the boot.img file that they passed to your phone, when the process finishes it will be saved in the downloads folder.
4- Enter the recovery TWRP 3.1.1 and flash the boot.img that generated magisk in the downloads folder
5- Restart and enjoy root access!

You can also just rename .apk to .zip and flash in TWRP, especially on old devices like this. Latest TWRPs also allow flashing Magisk without renaming as .zip. PW

 

[rudolfm]

Happy new year!

 

[szty0pa]

Happy new year!

Happy new year indeed!

 

[Sign1]

Hi. Just wondering if anyone could point me in the right direction. I have two Model: HUAWEI Y550-L02 both unlocked to any network.
I would like to install a custom ROM as the stock ROM is too clunky. I bought both off Ebay and they are working fine but I cannot find a way to unlock the bootloader or recieve a bootloader code. I emailed HUAWEI with no luck.

Could anyone be kind enough to point me in the right direction on how to either unlock the bootloader or gain the bootloader unlock code to unlock the phones.
Thanks for any help.

 

[pndwal]

Hi. Just wondering if anyone could point me in the right direction. I have two Model: HUAWEI Y550-L02 both unlocked to any network.
I would like to install a custom ROM as the stock ROM is too clunky. I bought both off Ebay and they are working fine but I cannot find a way to unlock the bootloader or recieve a bootloader code. I emailed HUAWEI with no luck.

Could anyone be kind enough to point me in the right direction on how to either unlock the bootloader or gain the bootloader unlock code to unlock the phones.
Thanks for any help.

I put this 2 years ago:
Post in thread '[ROM][Official] LineageOS 14.1 for Huawei G620S, Honor 4/4x' https://forum.xda-developers.com/t/...huawei-g620s-honor-4-4x.3547682/post-79511456

Y550 unlocking was / is supported by these people, shown as supported in their 'client software '...

I've used them several times in past, but years ago now. You'll need to familiarise yourself with their process... Please report success. PW