yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] pndwal:
Consistently,

official twrp is the only one that can display Adoptive Storage

, (I guess it correctly uses encryption key at data/misc/vold),

hovever it fails (with error 7) to flash any recent ROMs on LO2

(and I suspect on LO3 as in the past).

For this reason I still need to have unofficial twrp loaded to install ROM, and as

unofficial twrp

(incl. [MENTION=4479868]desalesouche[/MENTION]'s)

cannot see my SD formatted as Adoptive

, must swap and load installation files onto another SD formatted as portable, then swap to official twrp if I want to access my phone data in recovery.

As you can imagine, things would be a lot simpler for LO2, LO3 users if either official twrp could be made to load LO2, LO3 ROMs, or unofficial twrp could be made to recognise Adoptive Storage.

[MENTION=6829336]Hacker432[/MENTION] is still listed as official twrp maintainer but I am confused about who is updating official twrp as he seems to have entered no chargelogs over the past year.

[MENTION=4479868]desalesouche[/MENTION], [MENTION=6829336]Hacker432[/MENTION], is it now possible to fix (or merge) either twrp? Thanks, PW.
[Android Q&A, Help & Troubleshooting] rudolfm:
hi [MENTION=4479868]desalesouche[/MENTION], first of all thhanks for sharing your LOS build with us. This will give a new life to an old phone.

I have a Y550-L01 bought in Germany in a store, not from a provider. Baseband is version 11060009. I intstalled the latest TWRP 3.2.1-0, did a wipe and installed your LOS. Sofar everthing works except the phone. I can place or receive one call, then the dialer gets stuck in the hanging up screen when one side hangs up. I can leave the dialer, do other things, but the dialer always goes back to the "current call" which has actually been disconnetcted, an keeps on "hanging up". To place or receive another call i have to reboot. Killing the dialer doesnt help.

I tried your releases 1214, 1218 and 1219, each wih a prior wipe, it is the same with all. I tried setting the network to GSM only, no change. I tried a t-mobile and a vodafone Sim, no difference. Mobile data works. Only calling is affected.

Any idea?
[Android Q&A, Help & Troubleshooting] desalesouche:
Flash this: https://basketbuild.com/filedl/devs...ianlujitao/cherry/baseband/4xqwt_lp_modem.zip
[Android Q&A, Help & Troubleshooting] pndwal:
Info for new ROM installers (Often repeated)

Have you flashed Modem?

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 here:

https://xdaforums.com/android/development/huawei-y550-development-t3425524

See Modems, post #2. PW
[Android Q&A, Help & Troubleshooting] nashsa:
Hi everyone, Thanks for the wonderful support for this device. i recently flashed the los rom from this thread to my L02 variant which is coming from stock and it works fine.

Only thing i can't able to do is booting to twrp. I flashed twrp using fastboot and when i tried to boot to recovery, it is still stock recovery. Anyone can help me how to flash twrp so i can have it without stock.

Btw i flashed the los rom using fastboot boot twrp.

Again thanks to everyone for the support of this device.
[Android Q&A, Help & Troubleshooting] rudolfm:
[MENTION=8809693]nashsa[/MENTION]

When flashing twrp for the first time you must boot into twrp right after flash. Boooting into Android after flashing twrp restores the stock recovery. Booting twrp first corrects that.
[MENTION=4479868]desalesouche[/MENTION], [MENTION=7550078]pndwal[/MENTION] thank you for your fast help. I had read the last 10 pages but I missed the modem.

Merry Christmas to all!
[Android Q&A, Help & Troubleshooting] nashsa:
Thank you [MENTION=5815655]rudolfm[/MENTION], That is what i did and it still coming up stock recovery.

After flashing twrp using fastboot flash recovery, it comes up success. Then i press the power + volume up to go recovery, there is still stock recovery. Is there any other step i need to follow?
[Android Q&A, Help & Troubleshooting] pndwal:
Hi. Did you actually flash?

Ie. Type: fastboot flash recovery FILENAME.img

(Not: fastboot boot FILENAME.img)

Or, did fastboot dialogue indicate success with this?

Sorry if this is obvious.

Usually no problems or stock recovery replacement on Y550. PW.
[Android Q&A, Help & Troubleshooting] nashsa:
Yes i did fastboot flash recovery FILENAME.img and it comes up sending 'recovery', writing 'recovery' and finished.

And on first boot to recovery without booting to system it is still

Android system recovery Y550-L02V100R001C346B249
[Android Q&A, Help & Troubleshooting] pndwal:
Strange. Never had this on y550. Did you have very late stock update? (This may have caused restore-stock-recovery behaviour as [MENTION=5815655]rudolfm[/MENTION] said, but it's new to me.)

Also, can you confirm fastboot screen says 'unlocked'?

I did have this behaviour on Lenovo tablet, and amended the steps to root and install recovery to successfully avoid this problem. See here:

https://xdaforums.com/android/help/lenovo-tab3-8-2016-custom-recovery-t3483454/page7 post #66

Since you have successfully booted to twrp using fastboot boot FILENAME.img from fastboot, you could try similar method. (Removed bootloader unlock steps as I assume you've done this) ie:

1) Copy SuperSU or Magisk to the tablet

2) Open cmd (command Window) in folder with ADB and FASTBOOT and plug in phone in fastboot mode

3) Type: fastboot boot recovery.img (must be copied in the same folder as adb.exe and fastboot.exe) (Don't flash recovery yet - system will replace stock recovery before you have root)

4) Use TWRP to install SuperSU or Magisk. - Now you have ROOT (Systemless)

5) Repeat 2) and type: fastboot flash recovery recovery.img - Now your new TWRP recovery will be permanent.

6) Use TWRP to reinstall SuperSU or Magisk as root is probably lost in step 5 - Now you have restored ROOT (Systemless).

You will note that it is the flashing of root system that prevents overwriting of recovery in this case, which may or may not help with Y550.

Let us know if this helps. PW.
[Android Q&A, Help & Troubleshooting] nashsa:
Thanks for the detailed steps [MENTION=7550078]pndwal[/MENTION]

This phone was last updated on 28/12/2015.

I can confirm, from the fastboot screen it says bootloader is unlocked.

I used Magisk and did the steps from 1 to 5. After flashing twrp it can't boot into twrp, instead it booted to stock recovery. Is there any other way to flash twrp as permanent?

Thanks [MENTION=7550078]pndwal[/MENTION]
[Android Q&A, Help & Troubleshooting] desalesouche:
su

i would like to mention that all my roms come with lineage root (su) included.
[Android Q&A, Help & Troubleshooting] pndwal:
Actually, if you flash twrp image in twrp it may stick (install, install image, then select 'recovery' partition when prompted). I swap recoveries this way often.

Booting straight to twrp, or flashing su before twrp were the only tricks that has worked for me for stock system overwriting recovery, but it was a long shot that this might work for Y550. As I said, you may be the first to experience this problem on our device.

Can you confirm using root checker that custom rom has retained root (whether inbuilt or flashed in twrp)? (This seemed to prevent recovery overwriting on Lenovo device)

Also, have you run any software that may alter partitions other than system, modem & recovery in any way (eg to change logo etc)?

Guess it's possible either recovery is being overwritten, or that it never flashed properly in first place. (Possibly memory has been altered/ damaged)

Other than these suggestions/clues I'm stumped for now. Hope you can boot twrp, then flash twrp.img. Let us know.

At least you can install ROM and use twrp thru fastboot. All best, PW
[Android Q&A, Help & Troubleshooting] desalesouche:
if you go in twrp there is option to flash as Images and then as boot.img or recovery.img

Of course a twrp.img or a boot.img must be on sd card
[Android Q&A, Help & Troubleshooting] kekkkko:
I use lineage-14.1-20171218_002033-UNOFFICIAL-y550 but bluetooth doesn't work
[Android Q&A, Help & Troubleshooting] pndwal:
I'm using this to. No problems with Bluetooth to me. Media or calling. PW.
[Android Q&A, Help & Troubleshooting] nashsa:
[MENTION=7550078]pndwal[/MENTION], I tried flashing twrp image via booting in twrp, but it is still stock.

Root checker says my phone is rooted.

And i didn't use any software to modify anything in this phone.

Luckily i can use twrp using fastboot.

Thanks for your help.

---------- Post added at 05:00 AM ---------- Previous post was at 04:56 AM ----------

[MENTION=4479868]desalesouche[/MENTION], excatly this is what i did and sadly, twrp doesn't stick.
[Android Q&A, Help & Troubleshooting] pndwal:
Did you get twrp dialogue indicating flash success, then reboot immediately to twrp? (It would be useful to work out if custom recovery is in fact being overwritten, or if it's simply not flashing).

You could try fastbooting to different twrp for y550, then flashing twrp, but I doubt this will work.

Check 'Development' thread for alternative / useful files & info:

https://xdaforums.com/android/development/huawei-y550-development-t3425524 (post #2 kept up to date presently by [MENTION=6726815]Saint_13[/MENTION]).

You could try restoring full stock using dload method and see if this fixes your anomaly. See IVE BRICKED MY PHONE! section in thread above. (I imagine you can avoid step 5 as you seem to have stock recovery, but my understanding is that dload will only work with stock recovery installed).

Nb. Download stock ROM in step 1 seems to be for Y550-L01. You may want to extract stock rom from ROMs section, All Stock ROMs and Official Updates (L01, L02, L03), L02 Stuff or L03 Stuff if yours is not L01.

Nb2. I tried this method some time ago on my L02 and gave up without success. Others report full stock restored successfully however.

Hope it helps, PW.
[Android Q&A, Help & Troubleshooting] nashsa:
Yes twrp dialogue says flash success and i immediately booted to twrp using volume up+power, then it shows stock recovery.

i also tried to boot to recovery from twrp (there is a option to reboot to recovery in twrp) after flash success but it still stock.

I also tried other twrp (v2.8.4.1, v3.1.1-NATO'S) and it still stock.

Later i will try the dload method.

Thanks [MENTION=7550078]pndwal[/MENTION].
[Android Q&A, Help & Troubleshooting] pndwal:
Yep. Probably best option if you want to try. I think your phone likely has memory damage or other problem as this is very unusual on y550. All best with it, PW.
[Android Q&A, Help & Troubleshooting] desalesouche:
update.

http://www.mediafire.com/file/b9d9l38vx7r3115/lineage-14.1-20171226_233047-UNOFFICIAL-y550.zip

Please tell me if you have any problem with sim when doing code pin.

i don't know if my sim have problem or if comes from some kernel change...

Cos: once again less huawei thing in kernel. but it was just about log and diag.

some fix and some update (memshare mainly/xpad)

kernel source

https://github.com/HUAWEI-Y550-Y635/android_kernel_huawei_msm8916/commits/lineage-14.1

Wireguard still added to rom and kernel.

Audio Fx: i have a new bluetooth earphone and it seems to me that it works but may be i understand nothing to audio fx problem actually?

will buy another headphone cos with that bluetooth one i canno't listen to fm radio.

Don't know where is the piece of brain i lost actually....:confused::D

To All: i whish you a very happy new year, a lot of health , and success.

Edit, it seems my latest boot.img create problem with pin code... searching faulty commit.

if needed use older boot.img. the more recent one. or use attached one.
[Android Q&A, Help & Troubleshooting] pndwal:
Happily, you can use Bluetooth headphones for FM radio in lineage! Not sure about BT earpiece though.

-(I mentioned this previously, post #5550): re. FM radio - Surprised it plays natively over Bluetooth! (Needs corded headphones [or cable with headphone plug only] for antenna.) Fantastic! Previously needed Spirit FM app with root rights to achieve this.

AudioFX now functions property for me (without AML 1.4) for FM radio on Speaker, BT and Headphones, but when playing MP3 file (I use ES Media player), it's only working with BT. Previous ROM seemed to work with speaker, but no longer does. (It seems to me it to be an audio routing problem). I'm currently using your lineage-14.1-20171218_002033-UNOFFICIAL-y550.

AML compatible mods like Viper4AndroidFX continue to work well with magisk module updates, and seem to be better alternatives to AudioFX anyway.

(I've updated to Magisk 15, and can no longer natively install the obsolete AML 1.4. that fixes AudioFX. In fact ended up with boot loop after installing v15 with AML 1.4 module active and I think this was the cause. [edit - boot loop was from bad code in magisk 15.0. (Dev offered apologies.) Fixed in 15.1. Still can't load AML 1.4 mod.] I imagine it will still install on Magisk 14). PW.
[Android Q&A, Help & Troubleshooting] Garanews:
Hi,

at the moment I have just one SD, will buy another one.

I just installed latest lineage-14.1-20171226_233047-UNOFFICIAL-y550 and wiped dalvik and cache but result is the same.

SD size is 16GB . Under storage I read 5.46GB of 18.51GB. Then internal shared 3.22GB of 3.69GB and SD 2.24GB of 14.82GB.

If I click over shared internal storage and migrate data it says that will free around 2.10GB of SD card, so it seems that it want to move the data from SD to internal, completely the opposite that what I want to do!
[Android Q&A, Help & Troubleshooting] pndwal:
Must say I'm a bit confused now. Sizes seem correct for your card, and migrate data option

to

internal storage indicates you have in fact successfully migrated data to SD already, so you must have agreed (successfully) to migrate data after formatting. (If you hadn't, migrate data option would appear under Manage storage for SD card).

You appear to have 2.10GB data already on SD. Click SD card in Storage settings to see in this includes Apps, or just other data (Images, Videos etc)

My post was clear: Go to settings, storage,

SD card

, 3 dot menu at top - and select Migrate data to move data from internal to SD. Were you in fact trying to migrate data

to internal storage

(using migrate data option appearing under Manage storage for

Internal shared storage

, as indicated by 'clicked over shared internal storage' in last post)? This would explain "not enough space" error.

Are you sure? It's been under Developer options for each Lineage ROM I've tried. Presently under Apps, 5th item. (4 from end).

That just leaves this. What exactly was this message? Are you still having 'Low Space' problem?

If this is low internal or system space, this may help (see post #5784):

I still use Apps2SD to integrate system updates into system (convert to system app). Frees up internal memory as updated app as well as original (deactivated) are otherwise retained. [I tried a stand-alone app (System cleaner 2) to do this, but it messed up system apps. Went back to Apps2SD for this, and it integrated updates without problems.] I do this maintenance on y550 when needed. (Apps2SD has other functions still useful to, eg. Fix Device Lag (Trim partitions), etc.)

If you want to do this, install Apps2SD, but don't let it set up mount script (sim link) for SD card. Open 'Link apps to SD card' utility and check Storage info. Filter Updated Apps. Can multiselect, or individually Integrate into system. Nb. some integrated updates will be overwritten by new ROM installations, and you will need to repeat integration, and likely reinstall GApps.

Nb,

If you are using old GApps

: You will have more space wasted in internal by system updates that replace deactivated apps left in system. So,

using latest GApps is another way to minimise wasted space.

Nb2, Smaller GApps packages reduce system space used as extra Google apps installed from Play store are installed to internal from the start. However, these may not be optimised as are apps from GApps package, and if you install many from Play store, internal space can become low (Google apps generally don't like to be moved to SD). So it's a balancing act with GApps packages to keep a small buffer of free space on both internal and system memory on low memory devices like Y550. I find nano open GApps works well for me.

Hope it helps, PW.
[Android Q&A, Help & Troubleshooting] rudolfm:
[MENTION=4479868]desalesouche[/MENTION] I am using the 1218 release and Sim PIN works fine with two different Sims.

For those of you who use Afwall and LOS 14.1 you may want to enter these in a su terminal window:

settings put global captive_portal_mode 0

settings put global wifi_watchdog_on 0

to resolve the Wifi "connected, but no internet" thing. Do this once, it survives a reboot.

See this for more info:

https://github.com/ukanth/afwall/issues/761
[Android Q&A, Help & Troubleshooting] J5 2015 SM-J500FN:
Where can i get lineage-14.1-20171218_002033-UNOFFICIAL-y550 ROM? BTW does it get Updates?
[Android Q&A, Help & Troubleshooting] pndwal:
ROMs, post #2: https://xdaforums.com/android/development/huawei-y550-development-t3425524

lineage-14.1-20171218_002033-UNOFFICIAL-y550 By desalesouche

Page 588 post 5877: https://xdaforums.com/showpost.php?p=74885285&postcount=5877

Download Link Mirrors :

MEGA: https://mega.nz/#!0w0wzZba!dLR9i3owLsRmEjW-UyzJt0Obj0gQAQE6b6U8ezwu--8

Mediafire: http://www.mediafire.com/file/7qzdb9v60azoe9z/lineage-14.1-20171218_002033-UNOFFICIAL-y550.zip

Yes. Latest was yesterday: lineage-14.1-20171226_233047-UNOFFICIAL-y550.zip. Post # 5907 here, only five posts back.

A quick read of last few pages here will acquaint you with how things are progressing with custom ROM for Y550, and desalesouche's valuable work. PW.
[Android Q&A, Help & Troubleshooting] desalesouche:
kernel update

As usual , maintaining and updating kernel.... :p

latest commits: https://github.com/HUAWEI-Y550-Y635/android_kernel_huawei_msm8916/commits/los-14.1

Edit; With that boot.img you should have better ram management and more free ram...
[Android Q&A, Help & Troubleshooting] J5 2015 SM-J500FN:
How do you flash/install the Kernel?
[Android Q&A, Help & Troubleshooting] desalesouche:
you must be running one of my latest lineage os 7.1.2.

unzip the attached file.

copy boot.img on sd card in a folder if you want.

reboot to twrp recovery

flash as Images /boot.img and reboot
[Android Q&A, Help & Troubleshooting] kekkkko:
is there quick unlock in the lineage-14.1-20171218_002033-UNOFFICIAL-y550 rom ?
[Android Q&A, Help & Troubleshooting] rudolfm:
I just setup wireguard according to:

https://xdaforums.com/android/general/guide-how-to-wireguard-android-ubuntu-t3723544

The only problem was figuring out what I needed to allow in Afwall: Apps running as root.
[Android Q&A, Help & Troubleshooting] greenlabel:
Guys, i need a suggest. It's for my mother phone. Could you please suggest a full stable custom rom for this device?

Really thanks in advance
[Android Q&A, Help & Troubleshooting] rudolfm:
I have been using wireguard now and no problems yet. Azire gives you free VPN if you use wireguard.

https://www.azirevpn.com/wireguard
[Android Q&A, Help & Troubleshooting] Saint_13:
last lineage :

lineage-14.1-20171226_233047-UNOFFICIAL-y550 By desalesouche

https://xdaforums.com/android/development/huawei-y550-development-t3425524

https://xdaforums.com/showpost.php?p=69543714&postcount=74
[Android Q&A, Help & Troubleshooting] J5 2015 SM-J500FN:
Hey i test this rom for 2 days now and its running very good thx for lineageos 14.1 <3
[Android Q&A, Help & Troubleshooting] rudolfm:
Nagging for more only leads to us getting less. Let us all be thankful for getting 14.1 which gives our old Y550 such a wonderful new life.
[Android Q&A, Help & Troubleshooting] fwiep:
No more crackle sound

I flashed your latest ROM (lineage-14.1-20171226_233047-UNOFFICIAL-y550) and latest boot.img. My Y550-L01 works very well; perfect as far as my daily use goes.

The crackling notification sound I reported earlier is gone, now.

Thank you very much.

FWieP
[Android Q&A, Help & Troubleshooting] desalesouche:
7.1.2 lineage os update

Not tested at all. i couldn't cos i had to lend device to a friend.:o please feed back.

http://www.mediafire.com/file/2ekdqchcleipy5n/lineage-14.1-20180105-UNOFFICIAL-y550.zip
[Android Q&A, Help & Troubleshooting] szty0pa:
Thanks [MENTION=4479868]desalesouche[/MENTION]!

I noticed a more and a less major bug:

- the MAC address is a constant value of 02:00:00:00:00:00 after reboot (after flash?) for some time, but it changes to a unique value after a few days - I don't see how or why it changes

- if you set a custom location for weather display cLock doesn't remember your coice after a reboot

otherwise it works great for my parents! thanks for all your efforts! (I'm keeping track of the changes you make to the kernel on github) \m/ :)
[Android Q&A, Help & Troubleshooting] rudolfm:
I had the same strange MAC shown by a wifi widget with the last three releases. But when i look at the phone info in settings i see the correct MAC.

[MENTION=4479868]desalesouche[/MENTION]

I just flashed the 2018 and no problems so far. Thanks again for sharing your work.
[Android Q&A, Help & Troubleshooting] J5 2015 SM-J500FN:
Works very well but is there a way to improve battery life? (I don't use gapps, turn off everything i dont use like location or wifi, use energysave mode as well i turned off backgroundprocesslimit in developersoptions and many more). btw is there a app which shows me the health of my battery? I used this Phone 2 Years daily.
[Android Q&A, Help & Troubleshooting] desalesouche:
use kernel adiutor apk .you will find many option to set your device: cpu/gpu/etc...
[Android Q&A, Help & Troubleshooting] kekkkko:
I can't to solve the problem of call volume
[Android Q&A, Help & Troubleshooting] J5 2015 SM-J500FN:
What are the best settings to improve battery life?

I downloaded the app and disable core 3,4 and set cpu Governor to Condemend there is also (Performance, Powersave and Userspace). I tweaked a little bit in low memory killer and in io scheduler.

[MENTION=5998652]The Dev[/MENTION] How can i do a LOGCAT?
[Android Q&A, Help & Troubleshooting] greenlabel:
hi guys, i've a problem. I unlocked my bootloader and flashed twrp, but there's no way to start my custom recovery. If i hold vol+ and power starts android recovery. Also if i use adb commands. Can someone help me? thanks
[Android Q&A, Help & Troubleshooting] pndwal:
[MENTION=8809693]nashsa[/MENTION] had same problem recently. We never got to the bottom of it, except that it may be a hardware problem. You are only the second to have this problem I'm aware of.

Please check pointers I gave him: posts #5891 - #5906

Please especially check fastboot syntax used to flash as I mentioned: ie Type: fastboot flash recovery FILENAME.img (Not: fastboot boot FILENAME.img), and whether PC dialogue indicates success flashing.

Let us know how you go / any other clues you have to problem. PW.
[Android Q&A, Help & Troubleshooting] greenlabel:
Fastboot syntax is ok, andpc tells me flash is ok.

I found a way to use twrp 2.8.7 , starting it via adb with command "fastboot boot filename.img" and holding smartphone connected i can use it (i know, it's strange but it functions).

I flashed rom, and it goes ok.

I've problem with gapps, i tried fo flas pico for arm 64 android 7.1 but it gives me erros.

Just another thing. I've to flash also modem?
[Android Q&A, Help & Troubleshooting] desalesouche:
flash modem zip and use gapps arm/7.1/pico

did you have fastboot for android installed on pc?
[Android Q&A, Help & Troubleshooting] greenlabel:
I think so, i've adb folder with fastboot.exe, and i used it with every phone i had. This evening i try and i'll report if i'll be able to install modem and gapps (and boot.img, if i'll find a way to do it)