yashsingh1/xdaforums huggingface dataset:
[Magisk] walker4ever:
I have error 1 twrp with magiskuninstaller in android oreo galaxy s7

please help, i installed android oreo 8.0 in my galaxy s7 sm 930f, i rooted because i want delete somethings system apps, and then fix samsung health error with root, then i want unroot my device with magiskuninstaller an appear error 1, I already tried installing custom boot.img and nothing, same error, please help me with this, or is there some form to solve samsung health error without root?.:(:(

Sorry for my english, is not very good, i hope that they understand me.

Greetings.
[Magisk] Didgeridoohan:
[MENTION=7313674]walker4ever[/MENTION]

Try this uninstaller:

https://github.com/topjohnwu/Magisk/releases/download/v16.3/Magisk-uninstaller-20180328.zip

And a tip for the future. Provide logs together with the details about your issue. In this case, the recovery log (in TWRP, go to Advanced - Copy log). It makes it a lot easier to help...
[Magisk] Didgeridoohan:
[MENTION=7313674]walker4ever[/MENTION]

First of all, do

not

post an entire log like that... It makes the thread really hard to read. If you can't attach it at least use HIDE tags.

Second it's impossible to know if it's the same error, since "error 1" can mean a whole lot of things.

Third, how did you root your device in the first place? And have you tried using the "Complete Uninstall" option in the Magisk Manager?
[Magisk] Baba110:
Magisk installation failed after install costume rom

I'm using lineages os 15.1 now.

In my redmi note 4 mido device.

Before i installed magisk on stock room,but now while I try to install magisk on costume rom lineages os 15.1 showing installation failed and i try magisk uninstaller it's successfully completed and I rebooted the system and again I try to install again but showing same problem.

Please help me I want to install magisk on costume rom.

How is this possible?
[Magisk] Didgeridoohan:
Could the error possibly be something along the lines of "cannot mount vendor"? In that case, try searching the Magisk forum for that...
[Magisk] Baba110:
Magisk error:1 while installing

I read all and try all methods.

Still I have same problem.

I don't have stock ROM backup.

Already i installed magisk on stock ROM in redmi note 4 mido.

Working properly.

But after I installed lineages os 15.1 latest version I lost magisk.when i try to install again TWRP saying error:1

How can i install magisk again without flashing stock ROM.
[Magisk] Didgeridoohan:
Did you really search the forum for "cannot mount vendor" (like this: https://xdaforums.com/search/forum/5903?query=cannot mount vendor), and tried using the proper TWRP as the information you'd find suggests?

And if you are using the proper TWRP, "error 1" in itself means absolutely nothing. What's important is the recovery log that you save after the flash fails...
[Magisk] Baba110:
Magisk error:1 while installing

Yes I read that thread and follow all description. I lost TWRP recovery saying system destroyed and again I flashed TWRP and i try again to install magisk saying same like before unable to mount/vendor error:1
[Magisk] Didgeridoohan:
You might want to head over to your device's forum and ask for help. They'll know more... Even better would likely be to ask in your ROM thread.
[Magisk] Tarunratan:
I'm getting error 1 while installing magisk through twrp I'm in crdroid 8.1.0 custom ROM the below was the full log anyone please help

Updating partition details...

...done

Formatting Cache using make_ext4fs... Updating partition details...

...done

Wiping Dalvik Cache Directories...

Cleaned: /data/dalvik-cache...

-Dalvik Cache Directories Wipe Complete! Updating partition details...

...done

Installing zip file 'lsdcard/Download/Magisk-v16.0 .21p'

Checking for Digest file...

Skipping Digest check: no Digest file found

************************

* Magisk v16 0 Installer

************************

Mounting /system. /vendor ! Cannot mount Ivendor Unmounting partitions

Updating partition details...

Done__
[Magisk] Baba110:
Wrong way

Install treble costume recovery and costume magisk
[Magisk] jyotixda:
Use Magisk 16.0 after flashing Orangewolf recovery.
[Magisk] RiotArrows:
How do you install magisk to your stock boot.img?
[Magisk] Митко:
Error 1

When i try to flash it with TWRP i get this error.
[Magisk] Pai Mei:
What boot.img?

Hello guys,

I have the same problem installing magisk on my Sony Xperia z3 compact with android stock 6.0.1.

Today, for the first time, I unlocked the bootloader and I installed TWRP recovery.

I tried to install the latest version of magisk (v. 18.1) via TWRP, but it shows the famous "Error 1".

I read in this topic that I should flash the boot.img and then I should reinstall magisk.

What I don't understand is where I can find this file "boot.img".

Can someone help me?

Thanks!
[Magisk] Maan arora:
Install magisk 16.2

First u flash uninstall magisk zip file then U will install magisk 16.2 with twrp and stock boot image flash automatically when u flash magisk 16.2.. try it
[Magisk] jbusta:
Same error,please help. See attachment for log
[Magisk] HeiSiri:
Hi, I know it's been 3 years, but I wanted to share the solution with other users. If TWRP fails to install Magisk, try another recovery. I have installed OrangeFox and the installation was successful
[Galaxy S 5 Q&A, Help & Troubleshooting] kerek46:
Aug 12 version's media scanner didn't find music files in phone stroge. Find music files in sdcart, didn't find in Phone stroge. Pls help. Thx.
[Galaxy S 5 Q&A, Help & Troubleshooting] kerek46:
Help please :(
[Galaxy S 5 Q&A, Help & Troubleshooting] kerek46:
I solved.

For same issue: wipe internal stroage with latest twrp (I used 3.1.0.0). You can backup files with pc or etc.
[Galaxy Note II Q&A, Help & Troubleshooting] leongliang:
Dear Sirs,

In the middle month of July 2017. I was unable to play the game Pokemon Go anymore. The error message "Unable to Authenticate" or " Inappropriate OS, Software, Device ...". With the same device, there is no problem before. I have been trying one month already to solve the problem...The result is so disappointed. Can anybody help me to solve this kind of problem...

I am using Samsung Note 2, rooted to Android ver. 7.1.2 (RR-N-v5.8.4-20170807-7100-Milestone). Kernel Version : 3.0.101-lineage-gd142ec0.

Please HELP...

Thanks.
[Galaxy Note II Q&A, Help & Troubleshooting] audit13:
Try using a stock unrooted ROM.
[Galaxy Note II Q&A, Help & Troubleshooting] leongliang:
Dear Sirs, I have to root my device for upgrading to Android 6.0. Is it any way to hide or avoid the detection of Safetynet checking. I used the Magisk V.13, failed.....Thanks!
[Galaxy Note II Q&A, Help & Troubleshooting] audit13:
I don't know of a solution as I don't play Pokemon Go. The only people I know play Pokemon Go with stock unrooted ROM.
[Galaxy Note II Q&A, Help & Troubleshooting] Zavd:
Hello, try to clean flash ressurection remix and after that magisk. Dont flash SuperSU or other root after or Before magisk. Hope that helps
[Sony Cross-Device Development Themes and Apps] bromserge:
hi everyone who read this.

i have sony xperia l with LOS 14.1 installed. and i want to get the most out of camera app.

need help to find any camera app or mod which could help to fulfill my dream.

a tried some mods but the camera app always crashs after install.

I believe in xda-gurus
[Sony Cross-Device Development Themes and Apps] nreuge:
The LOS camera, i.e. Snapdragon camera, is great, probably better than Sony stock camera.

Alternately, you can try OpenCamera, very good too.
[Sony Cross-Device Development Themes and Apps] bromserge:
LOS camera have problems with WB and exposition, Open Camera is better, but the photos was noised.

tried cameramx - much better, but i cant make external-sd saving
[Sony Cross-Device Development Themes and Apps] nreuge:
I've no such problems with LOS camera on my Z5.

To force external-sd saving, you can use the magisk module Magic Folder Binder
[Sony Cross-Device Development Themes and Apps] bromserge:
thanks a lot for your reply!

can LOS14.1 cope with other camera ports? is it worth trying to make camera quality better using port?

you are talking just about camera apps. i'm sorry if something is wrong from me, but i dont know much about it.

and one more sorry for my english..)
[Sony Cross-Device Development Themes and Apps] nreuge:
There are several HTC camera ports available on XDA, you can try them (anyway always backup first...)
[Sony Cross-Device Development Themes and Apps] spynathan:
Do note I have an Xperia Z5 so results may vary for you, but I've found best results using the ProShot app, it's worked amazingly on several different phones I've tested so I'd imagine it would work well on a Z1 as well. Definitely worth looking into.
[Sony Cross-Device Development Themes and Apps] bromserge:
Ou.. i will try it now!

I installed proshot. Its very good! Thanks for your reply!
[Sony Cross-Device Development Themes and Apps] Aphex33:
Camera FV-5 all the way
[Sony Cross-Device Development Themes and Apps] bromserge:
I have already tried it on my c2105. ProShot is much better for now
[Tilt, TyTN II, MDA Vario III General] lamson:
At school there is wireless all around campus however I can't connect to it. My Tilt shows the wireless but can't connect. On my laptop all I need to do is connect and then login when prompted in Internet Explorer. On my Tilt sometimes I'm able to connect and then get to the login page in IE but then it won't go any further and just stays that way. Are there any settings or mods that I can use? Please help me. Thank you thank you
[Tilt, TyTN II, MDA Vario III General] higherbeing:
I have had the same issue with my Kaiser as well as my s620 Excalibur... I think it has to do with certificates.. Atleast at my school after logging into their web page, it asks me to download a certicate on my laptop... my cell doesnt downlaod the cert, therefore doesnt work
[Tilt, TyTN II, MDA Vario III General] jug6ernaut:
@ first dude, tryping copying over the mac ip address from ur laptop to ur cell(idk if its possible to clone the ip to ur phone or not). when u log in through ie its most likly regestering ur mac with a mac filter...so this might work

@ second dude, try using odyssey access client on ur phone and importing ur certification that u downloaded from ur laptop...again this may not work bc the certification may only work on pc's
[Tilt, TyTN II, MDA Vario III General] ekw:
Yeah my school requires me to register my mac address for it to connect. Ask the IT guys or helpdesk to see how to do so!
[Tilt, TyTN II, MDA Vario III General] lamson:
thanks guys I will try these suggestions tomorrow at school
[Spice Mi 509 Questions & Answers] cric Naman Soni:
Apps are not open

When I open app then messege came "unfortunately stopped"

Please tell me solution
[G 2014 Android Development] nithin chandra:
reserved:D
[G 2014 Android Development] surajoza:
Screenshot plzz
[G 2014 Android Development] tejasrao1996:
Screenshots everybody!
[G 2014 Android Development] DeluxeMark:
A lot of features and very smooth! I just dont like this color:
[G 2014 Android Development] nithin chandra:
Well you may request the colt team then..about the color
[G 2014 Android Development] Wislley Frauner:
[MENTION=6735685]nithin chandra[/MENTION], look

https://plus.google.com/+NitinkumarChobhe/posts/QFNW3qGaLmV
[G 2014 Android Development] nithin chandra:
taste the mint flavour :)

ColtOS_Mint-N-v1.3​

https://androidfilehost.com/?fid=817906626617940432

Version bumped to V1.3 Mint

October Security Patch

Sources are inline with LOS

Added Lockscreen Colors

Added Ticker

Added brightness icon toggle

Some device specific fixes

Fixed some NPEs in Fwb

Applied Colt boosting configurations

Added Data/WiFi icon toggle

Added pulsing battery icon when charging

Faster app switching

Added Camera and screenshot sound toggle

Weather in Expanded header

Added toggle for data indicator

Lock screen colors supported by font styles

Added Lock screen quick unlock

New default Circle Battery Icon

Add/Remove QS Tiles with one click

New default wallpaper
[G 2014 Android Development] rubentkato77:
Thanx, will give a Try :good:

Edit; Love the dark theme, and ROM's very smooth, thanx [MENTION=6735685]nithin chandra[/MENTION]

Regards !
[G 2014 Android Development] mini2015:
I am on v1.1 suppose ... how is v1.3.. :D
[G 2014 Android Development] rubentkato77:
Try it
[G 2014 Android Development] mini2015:
Ok.. everything looks good... except that I cannot use Mobile Data... this is not working.. in either of SIMs.
[G 2014 Android Development] nithin chandra:
if you dirty flashed the rom...do clean flash..if still mobile data wont work add apn manually :)
[G 2014 Android Development] mini2015:
I had done clean flash and also tried with manual APN .. not working..

I guess will have to try reflashing the ROM .. :angel:
[G 2014 Android Development] mini2015:
Nope .... Mobile Data not working .... Reflashed and its still same ...
[G 2014 Android Development] mini2015:
NO Updates for this ??
[G 2014 Android Development] nithin chandra:
ColtOS_SeeBreeze-N-v1.4​

https://androidfilehost.com/?fid=890129502657591252

Some of the key highlights as follows :

1. Nov Security Patch

2. Added screen Lock/Unlock sound

3. Beautiful switch button

4. Added some default animations

5. Increased the fluidity with stability

6. More robust theme engine

Note: Dark Theme Lovers : pls apply Colt Dark theme also under display to enjoy the theme engine.

Colt based on AOSP will be arrived soon stay tuned :D
[G 2014 Android Development] sapo_joe:
Very nice! But November patch?

The aosp version will be Oreo based, right?

Thanks for porting the ROM, amazing job!
[G 2014 Android Development] nithin chandra:
Yeah..Nov is the last security patch of colt

Yes based on aosp
[Samsung Galaxy Alpha] lijkbezorger:
When phone find new updates (with wifi on) it shuts down. Sometimes with artifacts on screen and buzzing.

The temperature of device is high but when I use apps with wifi phone works good.

I have cleared cache of google services. I have reinstall official service firmware but nothing help.

Any ideas what can I do with it?

P.S. Phone have been worked 3 years without any issues.

Thank you!
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] prashantp01:
​

Changelog For Test Build​

Initial Release

Test Build thx to [MENTION=7350354]Mohamed R 96[/MENTION] for video review

https://m.youtube.com/watch?v=gUD5E_N6vEM​
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] prashantp01:
​

All here is Optional​

Edge Screen Only DOWNLOAD

If you need:

[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Bixby S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Edge Panel S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Game Tool S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Game Tuner S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Email S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Optical Reader S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Samsung Notes S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Samsung S-Health S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] S-Voice and TTS Voices
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Samsung Connect S8
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] SoundAlive
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] Viper4Arise
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] +Debloated Collection Apps ((Aroma Installer)
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] and more

Collection Apps and mods DOWNLOAD

You need changue position SystemUI and changue System Animation:

[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] SystemUI on the right - SystemUI to the center
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] System Animation IOS
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] System Animation BLUR
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] System Animation FLYME
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] System Animation MIXER
[B][COLOR="Black"][SIZE="3"]*[/SIZE][/COLOR][/B] System Animation STOCK NOUGAT

System Animations

SystemUI Clock Position

Enjoy the rom and this work.

Blessings​
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] prashantp01:
Reserved 3
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] umito35:
I download to night and test ur rom bro

SM-A310F cihazımdan Tapatalk kullanılarak gönderildi
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] parth111999:
[/QUOTE]

Here comes the beast himself ?

RevolutionOs
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Oves786:
See kernel source

????
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] furkhan67:
[/QUOTE]

Mah favorite man???

But kernel source is of a5??????

---------- Post added at 07:45 AM ---------- Previous post was at 07:45 AM ----------

???Reep
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] mbk999:
beast

Thanks alot ???
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] mozzafar alali:
Amazing rom thanks ?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Tnt148:
Thanks bro :good:
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] talk2indrajit:
Thanks Prashant to bring up this ROM to us...its buttery smooth and fluid !!! working awesome on J700F :)
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Bravo Inc.:
After Advaned Rom AF....

Thiz iz the Best AF Rom

It iz Smooth AF AF AF

The Battery SOT iz 8h+ AF

VoLte iz AF Working

Animations are AF

I love the Rom Control AF

It is the AF thing which i luv AF

I hope we will see more Updates AF Soon...

Till then Best of Luck AF...
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Mark_Draconian:
Wow, i've to test this, thank you!!!
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Nandha 3018:
Superb animations

Soundalive working in video also

Calling screen super

Volte working

Overall the Rom performance is excellent ?

I am really excited...
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] AHMED__HASSAN:
Man, you did a great work !!

You deserve to be Mr busy ??
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] joaonds:
You tested, Marcos ?

In Telegram Group, he said: need replace kernel in your build.

Our variant is M. Nougat left only to Indian users. Not to us (700M).

Possible brick, if tested this rom ?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Mark_Draconian:
Not yet, but I will later today(I'm on M variant too)
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] joaonds:
He put A5 in the aroma, I asked, he said I was downloading the wrong rom kkkkkk

and call me noob.

kkkkkkkkk

I'm going to look at the Latino group in Telegram.
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Mark_Draconian:
Update, it's working! in Aroma options we can choose the variant, in our case M. The rom booted normally and is working pretty good!
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] :
Beautiful
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] thequellu:
Magisk working?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Irdi Mërzheku:
Can someone provide some screenshots of the ROM? And the battery usage

Thanks ?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] PRAKASHPANDEY193:
Hey can anyone suggest me a good camera app with working front flash....
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Harvey_Spectar:
Nice work bro?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] fehh_CrAzY:
Wow,nice work ❤️
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] :
Magisk Not Working.... Anyone Could Help me with installing it.... There's a error boot logo has been patched or smtng....

Sent from my Galaxy J7 Running Revolution OS
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Jrangel2000003:
Good work bro!

But i found a bug
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] fehh_CrAzY:
lol xD
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Jrangel2000003:
:silly: :laugh: c mamó
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] BLAZEGIG:
Rom is perfect. Really smooth. Thanks for your efforts.

.

What can be done to increase volume. Its very low. The rom is perfect though.
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Ayushj702:
First of all the ROM is very great, not even a bit laggy for me (was a bit at the starting but now good) Cheers and thanks for this Rom!

Also, i chose the magisk root option, magisk manager doesn't show magisk installed and asks to install it. When i tap on install, it downloads the file and crashes. After i open it again it again asks me to download the latest version and the same process repeats itself over and over again.

I am a bit of noob in the Magisk related stuff - so was wondering any one could help me??
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] fehh_CrAzY:
Bug when in connection, when putting the person on the other side of the line in a loud voice does not hear your voice
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] mechanist46:
cant send or receive message and problem with outdoor mode .
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Tejas Panmand:
Same with me.... Happens with jio network only... [emoji23][emoji12]
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] GianniM:
With me all is perfect I send and receive message and outdoor is working perfect. I am WITH J700H 2015.
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] mechanist46:
I think there is a problem with the volte
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] GianniM:
The only bug is in the edge panel calendar is not showing all the event otherwise this rom is fabulous. Thank you.
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] Tnt148:
It has a lot of bugs. I've been using it for the last two days. Gaming always lag, latency is much. Looking forward to early developer repair to make the rom more complete. I would love to move the pages, the application of this rom. It's amazing
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] prashantp01:
Hope All My j7ners like my test Build now enjoy the latest build by zonik.

Close this thread [MENTION=4910973]Vatsal[/MENTION] [MENTION=1840999]Bajanman[/MENTION]

Thank u?
[Samsung Galaxy J7 ROMs, Kernels, Recoveries, & Oth] parth111999:
Bhau ??

Thanks
[Honor 6X Questions & Answers] Schrotty35:
What is the different between dc and official bootloader unlock and which way is better?
[Honor 6X Questions & Answers] PalakMi:
Dc unlocker is faster but, you pay.

Official is free but, you need to wait some days.
[Honor 6X Questions & Answers] jerryhou85:
I would suggest you go for an official unlock way. I have little faith in these third parties...
[Honor 6X Questions & Answers] Ramesh006:
official doesn't take much time i got it instantly.
[Galaxy Grand Duos i9082 Q&A, Help & Troubleshootin] paraspanda:
can we install magisk having a nougat custom pre rooted rom already flashed ???
[Magisk] Valiante:
I came across this guide that explained how to get a sideloaded apk to work with Android Auto.

It got me thinking, there are always some apps that don't respond well to integrations due to the getInstallerPackageName() method of checking the install source.

Would someone be kind enough to create a module that does this so we do not need to connect our phones to the PC every time we update the APK just for a few apps?
[Magisk] Didgeridoohan:
There's no need to connect to your computer (and neither for a Magisk module, really). You should be ably to simply run the command in a Terminal emulator instead (without the ADB shell part).
[Magisk] Deic:
As Didgeridoohan said and you could try as

pm set-installer "PACKAGE" "com.android.vending"

Replacing

PACKAGE

with the package name of app installed already you want to change its installer to Google Play.
[Magisk] JohnFawkes:
Can't you do this in titanium backup by clicking on the app and going to special features tab and clicking attach to market?
[Magisk] mforce2:
This pm set-installer didn't work for me. What did was just installing the package (as root , not sure it's needed) with:

pm install -i "com.android.vending" <apk>