[Android Q&A, Help & Troubleshooting] rumfyro:
Hey All,

I have an old chinese phone that I use only for two purpose "watching movies and tv series in MX Player Old Version" and "reading ebooks in Moon+ Player". I dont even have to connect it via WiFi or SIM. It is completly Offline.

I copy the files over USB File Trasfer (MTP) using Data Cable

So I decided to remove all visible and hidden apps as it has jusr 1GB of RAM and more free RAM means better viewing and reading application. As of now, I have just 4 Applications installed and visible (All I need):

Nova Launcher

Solid File Explorer

MX Player

Moon+ Reader

So I did

"adb shell -> pm list packages"

and started removing crap and everything.

Problem is that my device was no longer visible in Windows PC even though its showed properly connected in Device Manager (devmgmt.msc) and driver was properlly installed. USB File Trasfer (MTP) was no longer working as I could not copy any files as device was not showing up even though it was properly connected.

I must have removed some important system package becuase I did a reset and all apps were back and it was working again.

So I am again going through the process of removing all of them, this time I dont want to remove that package. Can you please help me Identify which that package is that I shouldnt remove?

Here is the total list of system packages of my phone:

Striked are the Packages I removed last time

[STRIKE]pm uninstall -k --user 0 com.google.android.youtube
pm uninstall -k --user 0 com.google.android.googlequicksearchbox[/STRIKE]
pm uninstall -k --user 0 com.google.android.onetimeinitializer
[STRIKE]pm uninstall -k --user 0 com.google.android.apps.enterprise.dmagent
pm uninstall -k --user 0 com.google.android.apps.genie.geniewidget[/STRIKE]
pm uninstall -k --user 0 com.google.android.configupdater
[STRIKE]pm uninstall -k --user 0 com.google.android.marvin.talkback
pm uninstall -k --user 0 com.google.android.gm[/STRIKE]
pm uninstall -k --user 0 com.google.android.setupwizard
[STRIKE]pm uninstall -k --user 0 com.google.android.music
pm uninstall -k --user 0 com.google.android.apps.cloudprint
pm uninstall -k --user 0 com.google.android.apps.docs
pm uninstall -k --user 0 com.google.android.apps.maps
pm uninstall -k --user 0 com.google.android.apps.plus[/STRIKE]
pm uninstall -k --user 0 com.google.android.webview
pm uninstall -k --user 0 com.google.android.syncadapters.contacts
pm uninstall -k --user 0 com.google.android.packageinstaller
[STRIKE]pm uninstall -k --user 0 com.google.android.gms
pm uninstall -k --user 0 com.google.android.gsf
pm uninstall -k --user 0 com.google.android.tts[/STRIKE]
pm uninstall -k --user 0 com.google.android.partnersetup
[STRIKE]pm uninstall -k --user 0 com.google.android.videos
pm uninstall -k --user 0 com.google.android.feedback
pm uninstall -k --user 0 com.google.android.apps.photos
pm uninstall -k --user 0 com.google.android.calendar
pm uninstall -k --user 0 com.google.android.gsf.login
pm uninstall -k --user 0 com.google.android.apps.translate[/STRIKE]
pm uninstall -k --user 0 com.google.android.backuptransport
[STRIKE]pm uninstall -k --user 0 com.google.android.talk[/STRIKE]
pm uninstall -k --user 0 com.google.android.inputmethod.latin

------------------------------------------------------------------------------

pm uninstall -k --user 0 com.goldsand.deviceinfo
pm uninstall -k --user 0 com.android.advancedreset
pm uninstall -k --user 0 com.qrd.omadownload
pm uninstall -k --user 0 com.android.providers.telephony
pm uninstall -k --user 0 com.adups.fota.sysoper
[STRIKE]pm uninstall -k --user 0 com.android.providers.calendar[/STRIKE]
pm uninstall -k --user 0 com.android.providers.media
pm uninstall -k --user 0 com.google.android.onetimeinitializer
pm uninstall -k --user 0 com.qualcomm.qti.modemtestmode
pm uninstall -k --user 0 com.qualcomm.shutdownlistner
[STRIKE]pm uninstall -k --user 0 com.android.wallpapercropper[/STRIKE]
pm uninstall -k --user 0 com.quicinc.cne.CNEService
[STRIKE]pm uninstall -k --user 0 com.android.profile
pm uninstall -k --user 0 com.android.protips[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.qti.phonefeature
pm uninstall -k --user 0 com.android.documentsui
[STRIKE]pm uninstall -k --user 0 com.android.galaxy4[/STRIKE]
pm uninstall -k --user 0 com.android.externalstorage
pm uninstall -k --user 0 com.android.timerswitch
pm uninstall -k --user 0 com.android.htmlviewer
pm uninstall -k --user 0 com.qualcomm.sta
pm uninstall -k --user 0 com.qualcomm.svi
[STRIKE]pm uninstall -k --user 0 com.android.mms.service
pm uninstall -k --user 0 com.android.providers.downloads
pm uninstall -k --user 0 com.adups.fota[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.qti.engineertool
pm uninstall -k --user 0 com.qualcomm.qti.notificationservice
pm uninstall -k --user 0 com.qapp.secprotect
pm uninstall -k --user 0 com.hike.popupplayerservice
pm uninstall -k --user 0 com.qualcomm.qti.telephonyservice
pm uninstall -k --user 0 com.google.android.configupdater
pm uninstall -k --user 0 in.amazon.mShop.android.shopping
[STRIKE]pm uninstall -k --user 0 com.android.soundrecorder[/STRIKE]
pm uninstall -k --user 0 com.android.defcontainer
pm uninstall -k --user 0 com.qualcomm.agpstestmode
[STRIKE]pm uninstall -k --user 0 com.android.providers.downloads.ui
pm uninstall -k --user 0 com.android.vending
pm uninstall -k --user 0 com.android.pacprocessor[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.cabl
pm uninstall -k --user 0 com.android.certinstaller
pm uninstall -k --user 0 com.android.carrierconfig
pm uninstall -k --user 0 com.google.android.marvin.talkback
pm uninstall -k --user 0 org.codeaurora.bluetooth
pm uninstall -k --user 0 com.qti.qualcomm.datastatusnotification
pm uninstall -k --user 0 android
[STRIKE]pm uninstall -k --user 0 com.android.contacts
pm uninstall -k --user 0 com.android.mms
pm uninstall -k --user 0 com.android.stk
pm uninstall -k --user 0 com.android.launcher3[/STRIKE]
pm uninstall -k --user 0 cn.ckt.factorymode
pm uninstall -k --user 0 com.android.backupconfirm
pm uninstall -k --user 0 com.qualcomm.qti.supersaver
pm uninstall -k --user 0 org.codeaurora.ims
pm uninstall -k --user 0 com.android.statementservice
[STRIKE]pm uninstall -k --user 0 com.android.wallpaper.holospiral
pm uninstall -k --user 0 com.android.phasebeam[/STRIKE]
pm uninstall -k --user 0 com.google.android.setupwizard
pm uninstall -k --user 0 com.qti.primarycardcontroller
pm uninstall -k --user 0 com.qualcomm.qcrilmsgtunnel
pm uninstall -k --user 0 com.android.providers.settings
pm uninstall -k --user 0 com.android.sharedstoragebackup
[STRIKE]pm uninstall -k --user 0 com.android.printspooler
pm uninstall -k --user 0 com.android.dreams.basic[/STRIKE]
pm uninstall -k --user 0 com.android.frameworks.telresources
pm uninstall -k --user 0 com.android.inputdevices
pm uninstall -k --user 0 com.qti.xdivert
pm uninstall -k --user 0 com.android.musicfx
pm uninstall -k --user 0 com.android.cellbroadcastreceiver
[STRIKE]pm uninstall -k --user 0 com.google.android.webview[/STRIKE]
pm uninstall -k --user 0 com.android.qrd.engineeringmode
pm uninstall -k --user 0 com.android.server.telecom
pm uninstall -k --user 0 com.google.android.syncadapters.contacts
[STRIKE]pm uninstall -k --user 0 com.android.facelock[/STRIKE]
pm uninstall -k --user 0 com.android.poweroffhandlerapp
pm uninstall -k --user 0 com.android.keychain
[STRIKE]pm uninstall -k --user 0 com.android.chrome
pm uninstall -k --user 0 com.android.dialer
pm uninstall -k --user 0 com.android.gallery3d[/STRIKE]
pm uninstall -k --user 0 com.google.android.packageinstaller
[STRIKE]pm uninstall -k --user 0 com.google.android.gms
pm uninstall -k --user 0 com.google.android.gsf
pm uninstall -k --user 0 com.google.android.tts[/STRIKE]
pm uninstall -k --user 0 com.android.calllogbackup
pm uninstall -k --user 0 com.google.android.partnersetup
pm uninstall -k --user 0 org.codeaurora.btmultisim
pm uninstall -k --user 0 com.dsi.ant.server
pm uninstall -k --user 0 com.android.proxyhandler
[STRIKE]pm uninstall -k --user 0 com.cyanogenmod.filemanager[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.qti.loadcarrier
pm uninstall -k --user 0 com.android.inputmethod.latin
pm uninstall -k --user 0 com.google.android.feedback
pm uninstall -k --user 0 com.android.managedprovisioning
pm uninstall -k --user 0 com.android.dreams.phototable
pm uninstall -k --user 0 com.goldsand.calibrator
[STRIKE]pm uninstall -k --user 0 com.android.noisefield[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.qti.carrierconfigure
pm uninstall -k --user 0 com.android.providers.partnerbookmarks
pm uninstall -k --user 0 com.google.android.gsf.login
pm uninstall -k --user 0 com.android.smspush
[STRIKE]pm uninstall -k --user 0 com.android.wallpaper.livepicker
pm uninstall -k --user 0 com.qualcomm.qti.telephony.vodafonepack[/STRIKE]
pm uninstall -k --user 0 com.google.android.backuptransport
pm uninstall -k --user 0 com.qualcomm.qti.accesscache
pm uninstall -k --user 0 com.wdstechnology.android.kryten
pm uninstall -k --user 0 com.qualcomm.qti.extsettings
[STRIKE]pm uninstall -k --user 0 com.android.bookmarkprovider[/STRIKE]
pm uninstall -k --user 0 com.android.settings
pm uninstall -k --user 0 com.qualcomm.qti.ims
pm uninstall -k --user 0 com.qualcomm.qti.embmstuneaway
pm uninstall -k --user 0 com.android.calculator2
[STRIKE]pm uninstall -k --user 0 com.qualcomm.location
pm uninstall -k --user 0 com.qualcomm.simcontacts[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.qti.qs
pm uninstall -k --user 0 com.qualcomm.qti.tm
pm uninstall -k --user 0 com.qualcomm.qti.tetherservice
[STRIKE]pm uninstall -k --user 0 com.caf.fmradio[/STRIKE]
pm uninstall -k --user 0 com.qti.diagservices
pm uninstall -k --user 0 com.android.wallpaper
pm uninstall -k --user 0 com.android.vpndialogs
[STRIKE]pm uninstall -k --user 0 com.qualcomm.location.XT
pm uninstall -k --user 0 com.google.android.talk
pm uninstall -k --user 0 com.android.email
pm uninstall -k --user 0 com.android.music
pm uninstall -k --user 0 com.android.phone[/STRIKE]
pm uninstall -k --user 0 com.android.shell
[STRIKE]pm uninstall -k --user 0 org.codeaurora.snapcam[/STRIKE]
pm uninstall -k --user 0 com.android.providers.userdictionary
pm uninstall -k --user 0 com.qualcomm.qti.lunarinfo
pm uninstall -k --user 0 com.android.location.fused
pm uninstall -k --user 0 com.android.deskclock
pm uninstall -k --user 0 com.android.systemui
pm uninstall -k --user 0 com.qualcomm.qti.engineertool.operation
[STRIKE]pm uninstall -k --user 0 com.android.exchange[/STRIKE]
pm uninstall -k --user 0 com.android.bluetoothmidiservice
pm uninstall -k --user 0 com.qualcomm.qti.confdialer
pm uninstall -k --user 0 com.qualcomm.qti.networksetting
pm uninstall -k --user 0 com.qualcomm.fastdormancy
pm uninstall -k --user 0 com.android.bluetooth
pm uninstall -k --user 0 com.qualcomm.timeservice
pm uninstall -k --user 0 com.qualcomm.embms
[STRIKE]pm uninstall -k --user 0 com.android.providers.contacts[/STRIKE]
pm uninstall -k --user 0 com.qualcomm.ltebc
pm uninstall -k --user 0 com.android.captiveportallogin
[STRIKE]pm uninstall -k --user 0 com.qualcomm.qti.calendarlocalaccount[/STRIKE]