[General Questions and Answers] Mandami:
Thank you.

I haven't installed it yet (because I'll need some other details) but here is a part of the description of this build:

ro.build.display.id=T2-A7-10F_S000041_150112_ROW

ro.build.version.incremental=T2-A7-10F_S000041_150112_ROW

ro.custom.build.version=1421044222

ro.product.locale.language=oo

ro.product.locale.region=XX

Searching for the apps, we find:

-------------------------------------------app-------------------------------------------

ApplicationGuide.apk [1 MB]

ApplicationGuide.odex [22 KB]

ApplicationsProvider.apk [42 KB]

ApplicationsProvider.odex [30 KB]

BasicDreams.apk [34 KB]

BasicDreams.odex [20 KB]

BatteryCharge.apk [82 KB]

BatteryCharge.odex [9 KB]

BatteryWarning.apk [132 KB]

BatteryWarning.odex [11 KB]

Bluetooth.apk [889 KB]

Bluetooth.odex [947 KB]

Books.apk [7 MB]

BrowserProviderProxy.apk [36 KB]

Calculator.apk [1 MB]

Calculator.odex [2 MB]

CellConnService.apk [254 KB]

CellConnService.odex [72 KB]

CertInstaller.apk [167 KB]

CertInstaller.odex [39 KB]

Chrome.apk [11 MB]

DeskClock.apk [6 MB]

DeskClock.odex [1 MB]

DocumentsUI.apk [1 MB]

DocumentsUI.odex [2 MB]

DownloadProviderUi.apk [306 KB]

DownloadProviderUi.odex [93 KB]

Drive.apk [8 MB]

DrmProvider.apk [42 KB]

DrmProvider.odex [34 KB]

Email.apk [5 MB]

Email.odex [6 MB]

EngineerMode.apk [2 MB]

EngineerMode.odex [1 MB]

EngineerModeSim.apk [57 KB]

EngineerModeSim.odex [81 KB]

Exchange2.apk [1 MB]

Exchange2.odex [3 MB]

FMRadio.apk [1 MB]

FMRadio.odex [212 KB]

FWUpgrade.apk [234 KB]

FWUpgradeProvider.apk [34 KB]

Galaxy4.apk [270 KB]

Galaxy4.odex [41 KB]

Gallery2.apk [22 MB]

Gallery2.odex [4 MB]

Gmail2.apk [5 MB]

GoogleCalendarSyncAdapter.apk [735 KB]

GoogleContactsSyncAdapter.apk [201 KB]

GoogleVideos.apk [3 MB]

Hangouts.apk [13 MB]

HoloSpiralWallpaper.apk [59 KB]

HoloSpiralWallpaper.odex [41 KB]

HTMLViewer.apk [12 KB]

HTMLViewer.odex [8 KB]

KeyChain.apk [75 KB]

KeyChain.odex [31 KB]

LatinImeGoogle.apk [17 MB]

LiveWallpapers.apk [1 MB]

LiveWallpapers.odex [274 KB]

LiveWallpapersPicker.apk [183 KB]

LiveWallpapersPicker.odex [29 KB]

Magazines.apk [7 MB]

MagicSmokeWallpapers.apk [230 KB]

MagicSmokeWallpapers.odex [52 KB]

Maps.apk [14 MB]

MATSDServer.apk [14 KB]

MATSDServer.odex [18 KB]

MTKAndroidSuiteDaemon.apk [215 KB]

MTKAndroidSuiteDaemon.odex [632 KB]

MtkBt.apk [1 MB]

MtkBt.odex [504 KB]

MTKLogger.apk [224 KB]

MTKThermalManager.apk [44 KB]

MTKThermalManager.odex [38 KB]

Music2.apk [8 MB]

NoiseField.apk [86 KB]

NoiseField.odex [46 KB]

PackageInstaller.apk [585 KB]

PackageInstaller.odex [683 KB]

PacProcessor.apk [7 KB]

PacProcessor.odex [6 KB]

PartnerBookmarksProvider.apk [68 KB]

PartnerBookmarksProvider.odex [164 KB]

PhaseBeam.apk [81 KB]

PhaseBeam.odex [43 KB]

PicoTts.apk [37 KB]

PicoTts.odex [20 KB]

PlayGames.apk [2 MB]

PlusOne.apk [31 MB]

PrintSpooler.apk [231 KB]

PrintSpooler.odex [166 KB]

Protips.apk [146 KB]

Protips.odex [12 KB]

RunInReboot.apk [14 KB]

RunInReboot.odex [8 KB]

SchedulePowerOnOff.apk [228 KB]

SchedulePowerOnOff.odex [63 KB]

SoundRecorder.apk [821 KB]

SoundRecorder.odex [171 KB]

Street.apk [258 KB]

TelephonyProvider.apk [177 KB]

TelephonyProvider.odex [507 KB]

UserDictionaryProvider.apk [13 KB]

UserDictionaryProvider.odex [17 KB]

ValidationTools.apk [1 MB]

ValidationTools.odex [313 KB]

Videos.apk [128 KB]

Videos.odex [65 KB]

VisualizationWallpapers.apk [207 KB]

VisualizationWallpapers.odex [72 KB]

YGPS.apk [178 KB]

YGPS.odex [84 KB]

YouTube.apk [8 MB]

-----------------------------------------priv-app-----------------------------------------

AnyShare_ww.apk [4 MB]

BackupRestoreConfirmation.apk [146 KB]

BackupRestoreConfirmation.odex [12 KB]

CalendarProvider.apk [785 KB]

CalendarProvider.odex [1 MB]

CDS_INFO.apk [156 KB]

CDS_INFO.odex [193 KB]

ConfigUpdater.apk [838 KB]

DefaultContainerService.apk [20 KB]

DefaultContainerService.odex [22 KB]

DownloadProvider.apk [971 KB]

DownloadProvider.odex [1 MB]

ExternalStorageProvider.apk [27 KB]

ExternalStorageProvider.odex [29 KB]

FileBrowser_ww.apk [3 MB]

FusedLocation.apk [14 KB]

FusedLocation.odex [13 KB]

GmsCore.apk [14 MB]

GoogleBackupTransport.apk [124 KB]

GoogleFeedback.apk [299 KB]

GoogleLoginService.apk [5 MB]

GoogleOneTimeInitializer.apk [8 KB]

GooglePartnerSetup.apk [127 KB]

GoogleServicesFramework.apk [2 MB]

ideaFriend.apk [15 MB]

InputDevices.apk [131 KB]

InputDevices.odex [5 KB]

Keyguard.apk [1 MB]

Keyguard.odex [725 KB]

LeCalendar.apk [4 MB]

LeLauncher.apk [4 MB]

LenovoContactsProvider.apk [463 KB]

LenovoOTA_ww.apk [1 MB]

LenovoSafeCenter_ww.apk [8 MB]

LenovoSync_ww.apk [4 MB]

LenovoWeatherApp.apk [7 MB]

LenovoWeatherAppThemePlus.apk [8 MB]

LenovoWeatherService.apk [32 KB]

LSF-Device-Row-Pad.apk [368 KB]

LSF-UEService-Pad_RoW.apk [213 KB]

LSF-User-Pad-RoW.apk [2 MB]

MediaProvider.apk [184 KB]

MediaProvider.odex [301 KB]

MtkVideoLiveWallpaper.apk [1 MB]

MtkVideoLiveWallpaper.odex [142 KB]

MusicFX.apk [173 KB]

MusicFX.odex [109 KB]

Phonesky.apk [7 MB]

ProxyHandler.apk [9 KB]

ProxyHandler.odex [12 KB]

Settings.apk [14 MB]

Settings.odex [4 MB]

SettingsProvider.apk [142 KB]

SettingsProvider.odex [107 KB]

SetupWizard.apk [4 MB]

SharedStorageBackup.apk [6 KB]

SharedStorageBackup.odex [9 KB]

Shell.apk [271 KB]

Shell.odex [634 KB]

SystemUI.apk [2 MB]

SystemUI.odex [926 KB]

TeleService.apk [4 MB]

TeleService.odex [3 MB]

Velvet.apk [24 MB]

VpnDialogs.apk [64 KB]

VpnDialogs.odex [11 KB]

WallpaperCropper.apk [321 KB]

WallpaperCropper.odex [818 KB]

------------------------------------------vendor\app----------------------------------------

Ds.apk [243 KB]

Ds.odex [56 KB]

DsUI.apk [16 MB]

DsUI.odex [168 KB]

------------------------------------------vendor\operator\app-------------------------------

Mirage_ww.apk [6 MB]

RawDataTest.apk [268 KB]

------------------------------------------vendor\operator\app\oversea-----------------------

app-anydpi.apk [7 MB]

Despegar.apk [12 MB]

ebiReader.apk [10 MB]

Evernote.apk [20 MB]

Faskaren.apk [23 MB]

FilmyBlum.apk [19 KB]

GameStore.apk [789 KB]

googlekoreaninput.apk [4 MB]

GoogleZhuyin.apk [12 MB]

Guveramusic.apk [18 MB]

iFreeBooks.apk [5 MB]

JPIFilter.apk [20 KB]

KatalogBlum.apk [14 KB]

Kindle.apk [31 MB]

KingsoftOffice.apk [24 MB]

KingsoftOfficeJP.apk [15 MB]

magazines.apk [16 MB]

NAVITIME.apk [12 MB]

SCOOP.apk [16 MB]

ServicesBlum.apk [13 KB]

Shiseido.apk [7 KB]

Skype.apk [15 KB]

Tapthefrog.apk [45 MB]

Twitter.apk [14 MB]

Txtrebooks.apk [13 MB]

UCBrowser.apk [12 MB]

WeChat.apk [27 MB]

Yandex.apk [12 MB]

YJTop.apk [4 MB]

So we find apps which are used only in some specific countries: Despegar.apk, Guveramusic.apk, FilmyBlum.apk, Yandex.apk, etc

Now, the questions:

if we install this firmware, does it mean that all these apps are installed too ? (I suppose so)

If we want to particularize the firmware only for a specific region, it's enough to modify the lines:

ro.product.locale.language=oo

ro.product.locale.region=XX (meaning that there is another file which links the regions to the specific apps which will be installed)

or do we need to delete manually the apps that aren't specific for that region ?