flash won't lose anything in /data
I just installed this rom and I had to debloat. So here are the apps I left ( also removed samsung ime and replaced with swiftkeyboard and replaced touchwiz with nova launcher )
This are the apps necessary for the system to run, if you remove anything from this 99% chances of bootloop or not working things. I just posted this list to save all of you some time googleing what's what. Took me a whole day to debloat.
[email protected]:/ $ ls /system/app
ls /system/app
AccessControl.apk
AccessControl.odex
Bluetooth.apk
Bluetooth.odex
CSC.apk
CSC.odex
Calendar.apk
CertInstaller.apk
CertInstaller.odex
ContainerAgent.apk
ContainerAgent.odex
ContextProvider.apk
ContextProvider.odex
DefaultContainerService.apk
DefaultContainerService.odex
FusedLocation.apk
FusedLocation.odex
GmsCore.apk
GoogleBackupTransport.apk
GoogleContactsSyncAdapter.apk
GoogleLoginService.apk
GooglePartnerSetup.apk
GoogleServicesFramework.apk
Hearingdro.apk
InputDevices.apk
InputDevices.odex
JobManager.apk
JobManager.odex
KeyChain.apk
KeyChain.odex
KeyguardWidget.apk
KeyguardWidget.odex
LogsProvider.apk
LogsProvider.odex
MtpApplication.apk
MtpApplication.odex
NetworkLocation.apk
NfcNci.apk
NfcNci.odex
PackageInstaller.apk
PackageInstaller.odex
Personalization.apk
Personalization.odex
Phonesky.apk
SBrowser.apk
SBrowser.odex
SamsungCamera2.apk
SamsungCamera2.odex
SecCalculator2.apk
SecCalculator2.odex
SecCalendarProvider.apk
SecCalendarProvider.odex
SecCalendar_SPen.apk
SecCalendar_SPen.odex
SecContacts.apk
SecContacts.odex
SecContactsProvider.apk
SecContactsProvider.odex
SecDownloadProvider.apk
SecDownloadProvider.odex
SecEmail_J.apk
SecEmail_J.odex
SecExchange.apk
SecExchange.odex
SecGallery2013.apk
SecGallery2013.odex
SecMediaProvider.apk
SecMediaProvider.odex
SecMms.apk
SecMms.odex
SecPhone.apk
SecPhone.odex
SecSettings.apk
SecSettings.odex
SecSettingsProvider.apk
SecSettingsProvider.odex
SecSetupWizard2013.apk
SecSetupWizard2013.odex
SecTelephonyProvider.apk
SecTelephonyProvider.odex
SecurityProvider.apk
SecurityProvider.odex
SystemUI.apk
SystemUI.odex
TimeService.apk
TimeService.odex
UltraCfg.apk
UltraCfg.odex
clockjbplus.apk
com.modoohut.dialer-1.apk
com.teslacoilsw.launcher-1.apk
com.teslacoilsw.notifier-1.apk
eu.chainfire.supersu-2.apk
swiftkey.apk
[email protected]:/ $