yashsingh1/xdaforums huggingface dataset:
[OnePlus 3 Themes, Apps, and Mods] chdloc:
Thanks for the file! Correlating the contents of that file with the mixer_paths_tasha.xml leads me to believe that the OP3 has an external speaker amplifier. If modifying the various "RXx Mix Digital Volume" mixer controls do not change the loudspeaker volume, then we could try to find the gain control of the speaker amplifier (if it exists). Post the output of

cat /proc/asound/cards

and

find /sys -name '*snd*'

to see if there is, indeed, an external speaker amplifier.
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
I didn't try the RXx mix volumes yet but you're definitely right about there being an amplifier!

Here's the output of the two commands and the red highlights

root@:/ # cat /proc/asound/cards
[COLOR="red"]0 [msm8996tashamtp]: msm8996-tasha-m - msm8996-tasha-mtp-snd-card
msm8996-tasha-mtp-snd-card[/COLOR]
root@:/ # find /sys -name '*snd*'
/sys/bus/usb/drivers/snd-usb-audio
/sys/bus/platform/devices/snd-soc-dummy
/sys/bus/platform/drivers/apq8096-i2c-asoc-snd
/sys/bus/platform/drivers/msm8996-asoc-snd
/sys/bus/platform/drivers/snd-soc-dummy
/sys/bus/platform/drivers/snd-soc-dummy/snd-soc-dummy
/sys/bus/platform/drivers/apq8096-auto-asoc-snd
/sys/devices/soc/75ba000.i2c/i2c-12/12-0020/input/input3/capabilities/snd
/sys/devices/soc/75b6000.i2c/i2c-8/8-0020/input/input5/capabilities/snd
/sys/devices/soc/soc:gpio_keys/input/input4/capabilities/snd
/sys/devices/soc/soc:tri_state_key/input/input1/capabilities/snd
[COLOR="red"]/sys/devices/soc/soc:sound-9335/sound/card0/input6/capabilities/snd
/sys/devices/soc/soc:sound-9335/sound/card0/input7/capabilities/snd[/COLOR]
/sys/devices/virtual/input/input0/capabilities/snd
/sys/devices/virtual/input/input2/capabilities/snd
/sys/devices/platform/snd-soc-dummy
find: /sys/kernel/slab/L2TP/IPv6: No such file or directory
find: /sys/kernel/slab/L2TP/IP: No such file or directory
[COLOR="Red"]/sys/kernel/debug/asoc/msm8996-tasha-mtp-snd-card
/sys/kernel/debug/asoc/msm8996-tasha-mtp-snd-card/codec:snd-soc-dummy[/COLOR]
/sys/module/snd
/sys/module/snd_soc_wcd9330
/sys/module/snd_soc_wcd9335
/sys/module/snd_soc_wcd9xxx
/sys/module/snd_usb_audio
/sys/module/snd_timer
/sys/module/snd_soc_wsa881x
/sys/module/snd_pcm
/sys/module/snd_soc_msm_stub
/sys/module/snd_soc_tfa9890
/sys/module/snd_soc_wcd_mbhc
1|root@:/ #
[OnePlus 3 Themes, Apps, and Mods] chdloc:
Actually, these are the interesting entries.

The "tasha" extries you highlighted simply refer to the WCD9335 codec, which is the standard codec used in combination with the Snapdragon 820.

Both of the above entries refer to audio amplifiers. The TFA9890 from NXP and a WSA881x, which I think is a speaker amplifier by Qualcomm, see e.g. here. It is not quite clear which one is being used, but I think it is the Qualcomm one. Now let's try to find some gain control. Crawl through the /sys folder to find references to either amplifier:

find -iname '*wsa*'

find -iname '*tfa*'

For starters you can likely lower the speaker gain (although I have no idea by how much) by disabling the '*BOOST*' references in the "speaker" device, i.e.

<ctl name="SpkrLeft BOOST Switch" value="0" />
<ctl name="SpkrRight BOOST Switch" value="0" />
[OnePlus 3 Themes, Apps, and Mods] derbestimmer:
you guys are so cool! these mods are the reason i decided to buy the op3 and lay my trusty nexus5 to rest (i have very much enjoyed chdlocs sound mods for the n5). i hope you know how much appriciated both your efforts are! keep it coming!
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
How would the boost be effected if that path is not being used? From what I saw the only path for audio playback was the deep buffer quat i2s one.

Also I think the nxp amplifier is being used in this case

Output of find -iname '*tfa*'

1|root@:/ #
1|root@:/ # find -iname '*tfa*'
./system/etc/firmware/tfa98xx.cnt
./system/etc/audio/nxp/Tfa9895_MOZART.cnt
./system/etc/audio/nxp/Tfa9895_MOZART_coefficient.config
./system/etc/audio/nxp/Tfa9895_MOZART_sec.cnt
./system/etc/audio/nxp/Tfa9895_default.cnt
./system/lib/libbtfasttrack_jni.so
./sys/bus/i2c/drivers/tfa98xx
./sys/firmware/devicetree/base/soc/i2c@7577000/tfa9890@36
find: ./sys/kernel/slab/L2TP/IPv6: No such file or directory
find: ./sys/kernel/slab/L2TP/IP: No such file or directory
./sys/kernel/debug/asoc/msm8996-tasha-mtp-snd-card/codec:tfa98xx.3-0036
./sys/module/snd_soc_tfa9890

Output of find -iname '*wsa*'

1|root@:/ #
1|root@:/ # find -iname '*wsa*'
./sys/bus/soundwire/drivers/wsa881x
find: ./sys/kernel/slab/L2TP/IPv6: No such file or directory
find: ./sys/kernel/slab/L2TP/IP: No such file or directory
./sys/module/snd_soc_wsa881x
./sys/module/snd_soc_wsa881x/parameters/wsa881x_ocp_poll_timer_sec
[OnePlus 3 Themes, Apps, and Mods] chdloc:
OK, you are likely correct in that the NXP amplifier/codec is used and that the WCD9335 is completely bypassed when the phone's speaker is active. I'd be interesting in what device is being called for, though. The reference to "[...]quat_i2s[...]" one is with respect to the use-case and not the device itself. To find out which device is being called for start the following command just before playing audio through the speaker:

logat -c && logcat > /sdcard/logcat.txt

and interrupt the command about five seconds after audio has started playing. It would also be interesting to see the kernel messages right around that time.

Too bad I don't have access to an OP3 to run these tests myself.

I'd suggest you take a look at all the *.cnt and *.config files pertaining to the NXP amp from your above list. Are any of them plain text? What is the content of the following directories?

/sys/kernel/debug/asoc/msm8996-tasha-mtp-snd-card/codec:tfa98xx.3-0036
/sys/module/snd_soc_tfa9890
[OnePlus 3 Themes, Apps, and Mods] harshainvader:
Here's simply what I want:

Disable (or at least reduce) noise cancellation in the audio recording for when I am recording videos and stuff.

Please provide a quick DIY on how to do it.

I don't want to do anything else with the phone.

Thanks for this post! I am sure many have found it useful :)
[OnePlus 3 Themes, Apps, and Mods] AcmE85:
You clearly did not read the OP or you would have already discovered which zip to flash.

I hope you don't refer to your own post, it was quite useless... smh
[OnePlus 3 Themes, Apps, and Mods] kristofpetho:
Thanks for all the work on this!

Can you tell me how to modify the volume on this path? This was I can modify the volume of notification.

<path name="low-latency-playback quat_i2s">
<ctl name="QUAT_MI2S_RX Audio Mixer MultiMedia5" value="1" />
</path>

Thank you!
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
Already tried opening those files and none were readable. Can't really post the logs atm moment but I looked through it and saw it was using deep buffer playback for audio

I'll post everything later today

Still trying to figure that stuff out
[OnePlus 3 Themes, Apps, and Mods] chdloc:
Unless we find a way to interpret and modify the cnt files, it looks more and more bleak that hardware-level gain control of the main loudspeaker is (straightforwardly) possible without modifying the amplifier's kernel driver. This would not be trivial, but doable by following Faux' lead and expose the volume control in /sys/module.

Anyway, there is one more test we can run to see whether there is hope in using one of the mixer files in the loudspeaker use-case: pipe the output of tinymix into a file while the phone is sitting idle and again while audio is playing. Diff'ing the two files will tell us what has changed in the mixer to support loudspeaker playback.

Edit: Found this. It hints at a possibility of writing to the i2c bus directly. The audio volume register is 0x6, see here. So, maybe there is a /sys/bus/i2c/drivers/tfa9890/6* directory?
[OnePlus 3 Themes, Apps, and Mods] luddarell:
Wow thank you so much for this mod , works perfectly in my phone :D
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
This is the only directory like that where 3-0036 looks like a symlinked directory.

126|root@:/ # ls /sys/bus/i2c/drivers/tfa98xx/
3-0036 bind uevent unbind
root@:/ #

Outputting the tiny mix commands produced an empty file in both instances.

I'll link a post to yours on the rr thread and see if anyone else is having the same problem. If they can't fix it then I'll look at it
[OnePlus 3 Themes, Apps, and Mods] igorkatson:
Thanks! I updated the reply here and the separate thread with an update:

- both issues are also present in "Unofficial CM13"

- hangouts issue is not present on OxygenOS any more after flashing from scratch (not via OTA). So no audio bugs on OxygenOS any more.
[OnePlus 3 Themes, Apps, and Mods] chdloc:
What files are inside the 3-0036 directory and what is their contents?

Are you sure you invoked the command correctly?

tinymix > /sdcard/tinymix.txt

If that still doesn't produce any output, what does

tinymix

show?
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
root@:/ # ls /sys/bus/i2c/drivers/tfa98xx/3-0036/
Log calibra driver modalias name power subsystem uevent
root@:/ #

Log is empty

calibra is 0:0

Driver is a symlinked folder that has bind, uevent, unbind, and a symlinked 3-0036 folder

power folder has power parameters

modalias is i2c:tfa9890

name is tfa9890

Subsystem is a symlinked folder that looks like its 1 folder above the driver folder

Sorry my brain stopped working, I was trying to output the result of tinymix RX volume. Here's the full file

https://www.dropbox.com/s/4azy251x7i008ls/Tinymix.txt?dl=0
[OnePlus 3 Themes, Apps, and Mods] chdloc:
It looks like that, by default, volume control of the amp is not exposed.

OK, can you run tinymix twice, once in the codec's quiescent state (no media is playing) and once while audio is playing via the speaker, and post their respective outputs?
[OnePlus 3 Themes, Apps, and Mods] igorkatson:
Regarding the skype issue above, here's a report from someone else experiencing similar bug:

http://xdaforums.com/oneplus-3/development/rom-t3403365/post67585216#post67585216
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
Here is the file with audio playing. The previous one was without audio. Couple things to note, there are 8 line differences but ignore the RX1 digital volume change. I was playing with the tinymixer in the first one. Also the quat_mi2s bools are the following. Multimedia 1 is audio and multimedia 5 is notifications. It looks like both can't be enabled at the same time. Also tried changing compress playback 9 volume back to 25 25 with no effect.

https://www.dropbox.com/s/d5r1yeao30zttjt/tinymix_music.txt?dl=0

Thanks I'm wondering if its a ROM specific issue or just a CM issue in general, if it is CM, then it might be fixed in a ROM update
[OnePlus 3 Themes, Apps, and Mods] chdloc:
The "Compress * Volume" knobs control the playback volume when the audio is being offloaded to the DSP (should be obvious from the reported "usecase", probably MultiMedia4 or MultiMedia7). On my Nexus 5 the relevant "Compress * Volume" setting follows the position of the volume rocker, 8192 being max volume, i.e. 0 dB. Did you modify the volume setting while audio is playing (you would have to)? Just to make sure, in order to change the volume to X<8192 the syntax should be

tinymix "Compress Playback 9 Volume" X X

You could also try lowering "QUAT_MI2S_RX Volume" while audio is playing:

tinymix "QUAT_MI2S_RX Volume" Y
[OnePlus 3 Themes, Apps, and Mods] igorkatson:
I have the same issues in "Unofficial CM13" rom too, not only resurrection, so it's probably general CM13 issue. Thanks.
[OnePlus 3 Themes, Apps, and Mods] sgenz84:
Thanks for the fix. Works great in videos. But one question.... Is there any way to push mic volume in WhatsApp? Voice messages are very quiet... I hope you can help? Thank you very much!

Gesendet von meinem ONEPLUS A3003 mit Tapatalk
[OnePlus 3 Themes, Apps, and Mods] this.guy.lol:
Can anyone upload a volume mod like for the OPO where its just the bottom speaker increase and not the bottom and top? I deaf and not really smart with tech...would love for my op3 to be louder for the bottom grill only. Thanks to whoever can help me in advance.
[OnePlus 3 Themes, Apps, and Mods] patalao:
Use just viper4ndroid or better yet use A.R.I.S.E sound systems mod that as all included.
[OnePlus 3 Themes, Apps, and Mods] dakid1235:
Link to either that work with the OnePlus 3?
[OnePlus 3 Themes, Apps, and Mods] patalao:
Search button is there to be used.

http://xdaforums.com/android/software/r-s-e-sound-systems-auditory-research-t3379709
[OnePlus 3 Themes, Apps, and Mods] Cyda:
Thanks to chdloc and abhi08638 for the NS fix, the audio is much clearer now.
[OnePlus 3 Themes, Apps, and Mods] vyp54:
OOS 3.2.2 is out and the changelog says that noise cancellation in video recording is fixed. Is this something that you want to look into? Compare the values to this existing mod?
[OnePlus 3 Themes, Apps, and Mods] abhi08638:
Hey sorry for not being so active on this thread I've been really busy dealing with some college issues.

Yeah I'll need the mixer_paths and audio_platform_info files. Alternatively if someone could point me to their git hub with these commits that's would be helpful as well because I can't find anything

Also, if someone can post a comparison of this and stock 3.2.2 that would be great
[OnePlus 3 Themes, Apps, and Mods] AcmE85:
[MENTION=4732904]abhi08638[/MENTION] I will provide you with the needed files in around 2 to 3 hours if nobody beats me to it.
[OnePlus 3 Themes, Apps, and Mods] Cyda:
Here you go. I've put the 3.2.2 files on my dropbox, let me know if I've missed any files.

https://www.dropbox.com/s/sv2chbb96vyrimd/audio_files.zip?dl=0
[OnePlus 3 Themes, Apps, and Mods] EP2008:
If I flash the OTA will I lose the modded settings? I ask because 3.2.2 is supposed to fix the noise suppression bug and it seems to be working as expected now - I didn't revert this mod before flashing so I'd like to confirm that the sounds I'm hearing are a result of the fix.
[OnePlus 3 Themes, Apps, and Mods] AcmE85:
As you have modded system files, you will need to flash the full rom zip or else the Update process will fail.

Doing so will remove all previously applied mods to your system including this one.

So you are good to go without reverting the fix.
[OnePlus 3 Themes, Apps, and Mods] EP2008:
Awesome. That's what I did so it looks like op fixed this issue FINALLY! This mod has been a lifesaver while we waited.
[OnePlus 3 Themes, Apps, and Mods] AcmE85:
[MENTION=4732904]abhi08638[/MENTION]

CM13 will include the OTA changes soon.

Judging by this commit, it seems that only

mixer_paths_tasha.xml has been changed:

http://review.cyanogenmod.org/#/c/154084/
[OnePlus 3 Themes, Apps, and Mods] chdloc:
I doubt that this is the relevant commit. OnePlus likely fixed the issue "right" by appropriately modifying the closed-source calibration data rather than going "our" route.

Kudos to OnePlus for listening to its customers.
[Android Q&A, Help & Troubleshooting] Zeno90:
I am cross compiling busybox for android and I can not find any guide or list of which applets cannot be built for the android environment. Most guides I have found are either to install a busybox binary or are aimed at non programmers so they do not go into great detail on configuration if they go into configuration at all.

I know bionic is not 100% POSIX compliant and I have read some .config files and based my config file in part on cyanogen's busybox config but for example I know bionic does not support passwd but something more niche such as the lpd / lp applets are disabled as well is this due to some limitation with bionic or just due to most people not using lp to print with.
[Android Q&A, Help & Troubleshooting] blandead:
I have a bionic can help test with.

Think lpd used to work in ICS.
[One (M7) Q&A, Help & Troubleshooting] thegreatkazoo:
ok...I'm trying to save a phone without flashing a new rom.

I have:

s-on

tampered

locked

security warning

att m7

Mt brother replaced the screen, went to CO for a month. phone died, he turned it on and bam, stuck in the boot loader.

everything i've read points to having to flash a new recovery and then a rom. He needs pictures on it. it's of his newborn after she was born. Super sentimental.

Is there anyway to get it to boot or do an adb pull from recovery without flashing a rom and loosing everything?

any help is greaty apprecited.

also, can someone post the link for the mini adb?

edit: He swears he has not tampered with the phone as far as bootloader,unlock or flashing. he said he replaced the screen and thats it.
[One (M7) Q&A, Help & Troubleshooting] alray:
Using adb from recovery is only possible with a custom recovery, not the stock recovery. Flashing a custom recovery requires to unlock the bootloader, unlocking the bootloader will wipe all data.

Are you sure there is no button stuck? Maybe the volume down button is stock and thats why it always boot in bootloader mode? Test all buttons when in bootloader and make sure they all work fine. Otherwise you'll no other choice than flashing a ruu (will wipe the phone) or unlock bootloader, flashing a custom recovery + a rom (will wipe the phone).
[One (M7) Q&A, Help & Troubleshooting] firedroidx:
Sorry about your brother's issue mate... But anyways, what gallery app did he use? You might be able to find those photos online if he used GPhotos, maybe even stock Gallery. I think HTC has their own cloud service on there too.

Here's Minimal ADB/Fastboot http://xdaforums.com/showthread.php?t=2317790
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
As the thread states....has anyone tried to flash stock DOK2 firmware from the new MM update? I have searched and asked many questions but have not gotten a solid answer. And if no one knows or no one has tried yet, would someone who had already taken the update be willing to try flashing stock DOK2 firmware? For developmental purposes. Thanks in advance. ?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] viewsfromthepi:
Anyone got root for Marshmallow?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] ajr901:
Root works perfectly fine. Use SuperSu Systemless root. I believe the version number is 2.74-2. It's the latest beta if I'm not mistaken.

First use ODIN to get TWRP onto the device and then flash the supersu zip like usual.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
I was thinking of just using flashfire to flash BL and modem only then install the rom..that way it doesnt overwrite recovery... bad idea ?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] Bruce lee roy:
Yes, bad idea. No shortcuts on base updates.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] xoxo_xdagirl91:
I was able to downgrade to DOK2 but I only flashed the bootloader & modem file not the entire firmware
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
If you flashed BL then we are good. I wonder if the MM bootloader is like n910G.....they couldn't go from 5.1.1 to 4.4.4 but when they got 6.0.1 they were able to got back 2 steps to 4.4.4.like a magical BL unlock ha
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] nymikey:
What files did you use? I tried flashing the entire dok2 firmware through Odin and kept getting stuck in a bootloop. If I could just flash those 2 files that would be great.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] xoxo_xdagirl91:
DOK2 Bootloader: https://www.androidfilehost.com/?fid=24269982087008410

DOK2 Modem: https://www.androidfilehost.com/?fid=24269982087008409

I used odin 3.11.1: http://dl.sammobile.com/Odin3-v3.11.1.zip

put the bootloader in the BL section & the modem in the CP section of odin
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] nymikey:
Thanks, I'm gonna give this a try.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] DeeXii:
I have downgraded from a full PE3 to OK2. Worked fine.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
Awesome...that makes me feel safer...I might try to odin nk4 later just for ships and giggles haha
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] gtharea:
does anyone know if you can downgrade from MM PE3 to KK ANK4? I know that you can't go from DOK2 to ANK4. Love firekat too much :)
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] Karina Kapri:
Someone needs to try this ASAP.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] lewis.james.750983:
I had a T-mobile Note 4 (N910T) on 5.0.1 , downgraded to KitKat 4.4.4, when Lolipop 5.1.1 came out I upgraded. rooted, and then flashed custom rom Tekxodus .. phone used to restart randomly .. later discovered that once you upgrade OK2 you get locked and no longer can downgrade to KK.

later on, the phone started to give mmc error and then just died.

Lesson Learned, stay on 5.0.1 or downgrade to 4.4.4 and stay there.

I still wonder if Android 6.0.1 Locks down the downgrade process to 4.4.4. I doubt it will allow it.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] Chrisayami:
Ok. You just downgrade, but I have a question.

After you flashed BL and CS, you still have to flash the firmware, right? So, I have to have the firmware OK2 too, right?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] SeerePetrova:
im also waiting for this reply hehehe...
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
Yea if you want everything to be OK2 but its not necessary....if you are gonna use twrp, u dont need to odin recovery....and if you are gonna use a custom rom instead of stock then you dont need to odin system...so basically anyone with twrp and a custom OS is only using BL and Modem
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
But i always just flash it all just to be thorough....
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] wilsonmd:
Can i flash that with flashhire app? (Without odin) And without loose my twrp?

Thanks!
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
Yea i ise flashfire way more than odin....
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] whitenote4:
Sorry I am a noob can u tell me the process how to downgrade from marshmallow to lollipop. Do I have to flash bootloader and modem along with rom or just the rom
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] Chrisayami:
And you think its gonna work for N910T, I mean, Tmobile?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
If going backwards, from MM to LP it would def be safer to flash the whole full wipe firmware because of int storage issues changing from build to build...just like going from LP to MM....but its probably not necessary...
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] noob4598:
Yea a good handful of people have made full downgrades already....and one claims to have made it back to KK haha
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] wilsonmd:
Anyone confirm if i can download from MM to Lollipop or KitKat via Flashire? Thanks in advance!!
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] whitenote4:
Can you please elaborate the process. Have you flashed modem and bootloader as well?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] wilsonmd:
Im waiting for that too because we (both) dont have a confirmation or a good data to do the procedure..

---------- Post added at 01:01 AM ---------- Previous post was at 12:55 AM ----------

Because we dont have a variety of custum roms in MM.

I flashed several custom roms but, have many bugs. Restore my nandroid, root with systemless and debloating with titanium backup .... That all i can did...
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] whitenote4:
I want to downgrade from marshmallow to lollipop so do I have to flash bootloader and modem along with rom or just the rom on t-mobile note 4?
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] louforgiveno:
At the very least you'll need to flash bootloader and rom. Modem is not necessary to roll back, but it's up to you....I was running 5.1.1 with the 6.0.1 modem for a while without any problems.
[T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting] Satan_Neil:
I just updated to 6.0.1 and wiped everything so in the morning I'll try to flash back to 4.4.4..... I'll update this post soon as I get finished..