yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] msamiltekin:
I look forward to :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Nik2404:
Would be great :D ...looking forward to every rom update from you sir :D
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] :
A minute bug @mohancm sir...

When I play a song from any Music application and turn off my screen, The song stops...

Please fix this bug [MENTION=7471004]mohancm[/MENTION] sir
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Go and install the latest RR 5.8.4, maximum bugs are fixed. And camera is working superb in the latest one.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Cheezzyy:
its showing that my internal storage is full and I cannot download anymore apps [MENTION=7471004]mohancm[/MENTION] help me pls
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
Is your internal storage visible in file manager?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] namthat:
he's like me, it show internal storage, but not using. file manage is not show, connecting to computer it isn't show too. Only show micro SD card.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Cheezzyy:
No its not visible. How can I solve this?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
People who lost internal storage, can head into this thread.

I am gonna provide new recovery for them :)

https://xdaforums.com/k4-note/how-to/fixed-missing-internal-storage-nougat-t3657798/page4
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
I also need volte ASAP. I started using RR 5.8.4 recently (3 days back) and it is super. I am glad that I rooted and installed this OS. THANKS [MENTION=7471004]mohancm[/MENTION]
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mangesh1256:
No but having issues in Instagram.. annoying..#

---------- Post added at 06:58 PM ---------- Previous post was at 06:52 PM ----------

Don't use aggressive doze mode apps or white list the music player..!!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] rdadalte:
I've tried 5.8.4, but my storage doesn't work in this version. I have a 2GB/32GB brazilian version.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
I badly need VOLTE for RR 5.8.4. the current OS is working bugless. Since most of us are using Jio sim the feature is must. When will you bring it? Also I want to know how to optimise apps running in background.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Ke_vAl:
Yeah !! He's right !

We need Volte !

Jio4Gvoice App sucks ! Please [emoji852]️

Although ROM is perfect !
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] lalit387:
Volte is not possible on any of the K4note custom ROM

Blame mtk
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Ke_vAl:
Maybe Its possible if we have source code !!?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] maheshg31:
I have install resurrection remix on my device lenovo k4 but I want to reinstall android Marshall 6.1 .

How to install it.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] YogaSmara:
MediaTek is not going to release the VoLTE source code. Period.

Stop asking for VoLTE.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Adapreddy Avinash:
does 5.8.4 supports dolby atmos????? Plzz rply ASAP
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] lalit387:
Yes but have to flash separately
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] breonor123:
When I connect my phone to car player via Bluetooth I can't use hands free profile

Pioneer deh 5900bt

Any solution?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
That's too and to hear. So no even an iota of hope?!!!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
It is one of the burning issue in this thread.

But understand the gravity of having NO SOURCE CODE. Even MTK didn't released the code and dev in their part did their best. Hope we would soon get the VOLTE source code so our dev can start working on it.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
How to manage background apps?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Yes it supports.

https://xdaforums.com/k4-note/how-to/custom-roms-lenovo-k4-note-t3631820

Go to this thread and download the DOLBY ATMOS zip file and flash it.

---------- Post added at 06:19 PM ---------- Previous post was at 06:16 PM ----------

Go to Battery section in setting tap on the 3 dots and there you will see battery optimization option.

-----------------------OR------------------------

Download the greenify app and control the apps in background.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] edarick:
Try this, search on xda, dolby mods

Ahrions Dolby Atmos a7000

QuasarAtmoX
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Yes. Ahrions Dolby is best so far.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Imshahbaz21:
U can also install it from magisk
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] :
The zip from magisk is for arm not arm64, if you try to flash it you will soft brick your device and will require a full wipe and clean rom flash; out of experience.

There is however a dolby atmos zip provided in this thread, if you manage to find it, that would be the proper one to flash

---------- Post added at 06:41 AM ---------- Previous post was at 06:38 AM ----------

Could the force closing issue regarding the Facebook app be related to some kind of memory leak? That would be the easiest way to explain the repeated fc's. Everytime you keep the app running long enough it will eventually fc, especially when video playback is involved; however scrolling through the app briefly does nothing. I'm thinking the same would apply to the ig app since they're both published by the same dev as far as I'm concerned. Let me know if there's anything I can help with
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] greatpapa:
Jio4Gvoice app is also not working in this ROM...it says device is VOLTE... :(
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] akshaysannakki:
Install google android system webview from play store
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] adarshgr:
Is there any custom ROMs of any android version with volte??
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] iyer78:
congratw:D
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] lalit387:
Mind reading a bit.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] :
Already have it installed, what purpose would it serve in this case nevertheless?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] G Ajju Ajju:
Help I can't boot into recovery
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] edarick:
No VoLTE forever in all roms, mediatek never release source of VoLTE, read an article on google about why mediatek dont release volte sc?

No VoLTE for mediatek....##
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
This is a very sad state as of MediaTek. Here's an article :(

https://www.xda-developers.com/have-you-paid-your-linux-kernel-source-license-fee/
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] justnow261:
Can i flash stock s232 directly while on this rom, i want to sell this phone so need to restore Volte.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
You can flash stock rom using sp flash tools while being on any rom. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Nik2404:
Bugs encountered

I encountered the following bugs in this new build :

1. The camera crashes as soon as we go in the video recording mode and press the pause button .

2. The battery saver when activated causes the phone to lag,which did not occur on previous builds

3. The phone doesn't remain switch off restarts automatically

4. Pie controls don't work as they used to in previous builds

5. No of clients connected on the hotspot are shown zero in the notification bar even when device are connected

Pls look in to the bugs and thanks for the otherwise great room
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Solution to few of your problems.

1. You can't switch off the phone through normal switch off option in power button.

You have to enter into recovery and switch it off from there.

2. Currently dev is figuring out a solution for the hotspot client issue which all are facing out.

-----------------------------------------------------------------OR--------------------------------------------------------------

Clean flash the latest ROM instead of dirty flash. ( It may help for the camera and battery issue.)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Nik2404:
I clean flashed the rom( moved from version 3.3 to 4.1 ) also the fingerprint doesn't seem to work properly when the screen is off ? Anyone else who faced this fingerprint problem ?

---------- Post added at 06:07 PM ---------- Previous post was at 06:03 PM ----------

Can anyone post download link for the stock rom for the device (for 3gb ram and 16gb ROM) and tutorial link( trusted and tested ) for using sp flash tool to flash stock rom without loosing the imei number ?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] adarshgr:
Sorry:confused:
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Download and flash the 2nd recovery by MohanCM using rashr app.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] G Ajju Ajju:
Thanks for help but my last backup Is not detecting

However my problem is solved :good:
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Imshahbaz21:
I m using it without any issue it has ahrion dolby atmos classic a7000 only
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] namthat:
Where the setting for function of finger as stock: setting touch or hold to back or home? I like this target, but i don't find it. tell me plz!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] 15me1a0411:
i have flashed RR 5.8.4 successfully,everything works fine camera wifi hotspot battery first class but except that device won't turn OFF if i do so via power button.It turns off normally and turns ON in a span of 3 minutes .....basically 'power off' button is acting as 'restart' apart from that it RR 5.8.4 ROM works fine...
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
The power option in power button is no more functional like normal. The only way is to get into recovery and turn the device off from it.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] 15me1a0411:
okay thank you...?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mangesh1256:
There is no such a option in rom..!

---------- Post added at 06:12 PM ---------- Previous post was at 06:10 PM ----------

Plez [MENTION=7471004]mohancm[/MENTION] remove bugs as soon as possible..not upgraded to latest.. Cause want a pure bugless rom..#peace..!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Issue regarding a app.

In the previous version of this ROM I installed Orbot app from play store and it worked perfectly fine. But in this latest one I installed but the the app, but it couldn't connect to tor client, each time I opened after few seconds it showed "Deactivating Tor".

I rebooted and cleared the data of this app but no help.

Please help.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] fpbasilio:
How can I flash back to stock ROM? Is there a zip I can flash?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Neerajkraj:
doesn't matter whether it is Lenovo or Mediatek, we have to pressurize them both to get source code as not sharing the source code is against the GPL policies Android is distributed under.

http://www.gizchina.com/2014/03/24/m...e-source-code/
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] YogaSmara:
Lenovo is not the one that has the source code. Furthermore, MediaTek is known for not releasing their source code. How exactly are you going to pressurize the company?

And yes, I'm aware of the GPL policies. But that doesn't stop a few companies from not releasing their source code.

Also, I've never seen evidence that a change.org petition has changed anything ever. In fact, whenever something does change, companies often make statements that the petition had nothing to do with the change. Therefore, that petition is completely worthless.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] :
What about the features available in ASOP ROM of Lenovo k4 note?

Features like Dolby Atmos, VR and fingerprint gestures,etc(basically some good features of the stock ROM of the k4 note), are these features available in this ROM I want to ask this because this is my first time installing a custom ROM for first time on my Lenovo k4 note.

Can anyone help by telling me that this ROM have these features or not? Also there are no problem in this ROM, right?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Yes. ROM is perfectly stable. Smoother than stock one. Dolby Atmos is available as an add-on (doesn't come pre-installed). Fingerprint and VR works. And there are tons of other mods and stuff better than stock. ;)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] fmhd:
[MENTION=7471004]mohancm[/MENTION] Should we flash zero addition kernel separately while flashing the new update?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
No. ZA has not been released yet for this build,as mohancm said yesterday. He will release it soon. Flashing the ZA now will result in bootloop
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] vishal3g:
[MENTION=7471004]mohancm[/MENTION] bro any plans to build stock oreo for Lenovo k4 note
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] fmhd:
Fine then!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
[MENTION=7471004]mohancm[/MENTION] please look at the orbot app, which is opening but always shows deactivating tor and is unable to connect to the tor network.

Please see to this issue.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
Working on it....

Hope for the success :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
Send me your log
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
log
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Jaival:
Thanks for it
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Ke_vAl:
Does "ZeroAdition " kernel have CPU voltage control !?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
My battery drains faster after installing 5.8.4. I installed more than 130 apps.

---------- Post added at 01:45 PM ---------- Previous post was at 01:44 PM ----------

Can we use substratum in 5.8.4. if yes, how to use it?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
1. I also faced the same problem of battery drainage.

Instead of dirty flash I clean flashed the latest ROM, and was set.

2. Yes, you can use the substratum.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
How to clean flash the ROM? What is the latest ROM?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
V4.1 is the latest build. To clean flash the ROM, wipe everything except sd card, i.e, data, dalvik, cache, internal storage. Now flash rom and gapps. Now flash the patched recovery. Reboot. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Neerajkraj:
It seams you work for Mediatek... Seriously man...you have more problem than mediatek for the petition
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
Where to download 4.1 and can you give me a detailed procedure. )
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] vishal3g:
It will be huge success..

Wise u gud luck bro....

.. and keep it pure stock .. just make hardware key customisable..?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] vishal3g:
It will be a huge success..

Wise u gud luck bro....

.. and keep it pure stock .. just make hardware key customisable..?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] YogaSmara:
I'm just a teen, what are you talking about? Stop assuming things up and actually do something instead of complaining stuff by making useless petitions.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Look at the first page OP of this thread, mohancm has written the instructions, follow that carefully. If you cannot access your sd card then follow this:

https://xdaforums.com/k4-note/how-to/fixed-missing-internal-storage-nougat-t3657798/page5 2nd post.

Take backup first. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
For the battery drain issue.

I will release zeroAddition kernel based on this kernel seperately.

I have did already, not getting time to publish.

Will do it soon, be patience.(don't flash old version of mine)

Thank you :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Omar Champ:
Nice Rom!

Please I want to port this Rom to my mtk6753 device! I have both MM and N firmware!

I'd really appreciate a port guide!

Thanks a lot!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Omar Champ:
Port guide please to other mt6753 devices running N firmware
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Thank you! Just a small info... It will have USB Fast charging right? :D
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] mohancm:
Yes, definitely.

For now, what all I have added in Za V2 features are present.

If I get time, I will add few more and release
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Ok thank you. ;)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
Will it be OTA or how we will be able to do that?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Ke_vAl:
PLEASE release soon !!!

---------- Post added at 09:40 AM ---------- Previous post was at 09:29 AM ----------

https://www.change.org/p/lenovo-mobile-india-we-want-volte-sources-for-lenovo-k4-note

Go and sign this on change.org

We will get VOLTE in ours custom rom !! Please do !!

Thank You!!!
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] imabhaysutar:
How to disable notifications for mobile broadcast? They are really annoying
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Bhanuanon:
A7010a48_s232_161227Raw.

Sir, will this ROM work for s232_161227 raw...after flashing, sim signals are not coming...but after restoring backup to stock rom, sim signals are coming..plzz help me sir:(
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] venky21:
Tnq sir I am waiting for it
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
While in this rom, check if your IMEI number is there or not. If you have lost your IMEI in this rom, then try this guide:

https://xdaforums.com/k4-note/how-to/guide-imei-fix-devices-custom-rom-t3630070

This might help to get back sim signals. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] venky21:
Uninstall broadcast app using ES file explorer
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] akshaysannakki:
Goto cell broadcast settings and disable it
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
My kernel correct or not? Should I upgrade it? (P.S.: My questions may be very basic. Kindly bear with me. I am not a techie)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Nice. This will help others. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] rdadalte:
I've just deleted the system app for it with Solid Explorer (needs root). I don't remember the exact apk name, but you'll find it easily in Applications collection on SE. It was a shot in the dark, but solved my problem and I hadn't any problems 'till now. I deleted Trebuchet Launcher too (I use Nova) and some other stock apps that I don't use (like FM, stock Browser, etc).

I did this with Lineage OS, but I'm pretty shure you can achieve the same results in RR.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] iyer78:
in stock, he is getting sim signal, so he hasn't lost imei..... may be be kernal
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
No. Sometimes you loose imei only in custom ROM (which happened to me), hence i created that guide only for custom ROM.

PS: He PM'd me saying that his IMEI was blank. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
Can anyone help me/guide me?

[MENTION=7471004]mohancm[/MENTION]
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Imshahbaz21:
Dnt do anything with ur kernel its ok zero addition kernal is still to be launched for rr 4.1
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Arpit1011:
after installing rom internal storage become read only type and not even showing in pc
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] esakki1988:
What is RR 4.1?

---------- Post added at 10:19 AM ---------- Previous post was at 10:17 AM ----------

The same happened to me after I formatted my ad card as an internal storage. Anyone explain the logic I'm missing?
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] syedrhashmi:
Please help

How to install Google Camera
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] kalematus:
yeah, i had the same problem, i solved it using the developer's instructions, i have the method above in my comment

you need to reflash the stock rom, fix you imei again with mauimeta, than flash twrp recovery than flash custom rom, than reflash the other recovery the developer posted. it worked for me, if you want details let me know.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] jatinjitzz:
hw decoder not working, mohan cm
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
Mohancm has released a patched recovery. It's in his new thread.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] BBird5000:
Please help me with this CELL BROADCAST issue, it is quite annoying every time you shift your place, many broadcast message will appear.

Please tell how to get rid of this.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] imabhaysutar:
What's name for APK?

---------- Post added at 06:05 PM ---------- Previous post was at 06:04 PM ----------

Please help with disabling CELL BROADCAST notifications...
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Imshahbaz21:
Uninstall system app named cell broadcast using es file explorer or any other app u like

---------- Post added at 06:15 PM ---------- Previous post was at 06:14 PM ----------

RR is the latest resurrection remix rom
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Arpit1011:
Means I have to install custom ROM again nothing else
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] PraneethMv:
If you are still facing internal issue, go though this and flash this recovery:

https://xdaforums.com/k4-note/how-to/fixed-missing-internal-storage-nougat-t3657798/page5

Post #44. :)
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] jatinjitzz:
Hey guys I wanna know that hw decoder is working or not in the latest rom, else I am the one who got this not working..thanks
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] emogibran:
HW decoder is fine, there's nothing wrong with it. If you have a problem with the HW decoder maybe you should tru to clean install or re-flash it again.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Mcolen:
Oh thanks
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] edarick:
When i on dolby, sound is not purely hq than stock.. this is bug in nnng or dolby app
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Mcolen:
Clear the data of "Google App" should done.

---------- Post added at 04:02 PM ---------- Previous post was at 03:59 PM ----------

I guess Dolby support is currently bugged cuz I was too having problem with dolby. Whenever I flash dolby or install dolby from magisk it bugs my phone(No Sim, Internal storage filled, etc)

Still want amplifier, try Viper4android(V4A) its good also and doesn't bug our android.
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] edarick:
Google app cleardata dinnt resolve my problem.. ok google set up voice is.not available..
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Mcolen:
Then try to reflash the google ass. though recovery zip file
[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] edarick:
What opengapps , micro