After dead-zones carrier is dropped until restart

Question

So I'm assuming this has to be a property that can be changed through buildprop, but I thought I'd consult you guys first.



Phone: Unlocked Galaxy S7 (Sprint), Android 6.0.1



Network: T-Mobile



Issue: If disconnected from the GSM network(in a deadzone/tunnel/big building), the device will continue to stay disconnected until it has been powered off or restarted, even if its in an area with known coverage.



I checked the APN while it was "disconnected" and it still detects a SIM is installed and all the carrier settings are good, but it wont reconnect to the carrier unless it is restarted.


— Ambrose K | Sources

Answer

Solved it myself after tinkering with it for the last day. While not recommended, it is possible to flash the Galaxy with other carrier's "version" of the android OS. So the old stock Sprint operating system was removed and replaced with a T-Mobile variant which changes all of the settings to GSM on the back-end for me. If you move from carrier to carrier and experience no issues... I highly recommend the "ain't broke, don't fix it route."




  • First by putting the phone into download mode (home+pwr+volume down)


  • Connecting the device to the computer, and running ODIN


  • Installing a T-Mobile variant of the S7 ROM (this will essentially change it from a 930S to 930T)




Downloads included:




  • New OS, I used "G930TTMB3APG1", but your mileage may vary depending on what carrier you need to change to.

  • ODIN 3.12.3


— Ambrose K | Sources

Q & A

Preventing auto login to the default email on an android tablet
Huawei bootloader: what is "FB Lock" and how to unlock it?
What is /storage/emulated/0/?
Should i be worried of these permissions from an app?
How do I install Google Pixel Launcher on HTC U Ultra?
Is it possible to get root permission using Magisk in Work Profile?
Why am I unable to get my nook to remap the upper left button to work as a CTRL key?
Remove app notification when app opens from launcher
Show adb backup manual
How can I search for a sticker or emoji on Line for Android?
Time zone keeps changing wildly
Equivalent ADB command in Termux
Consequences of removing Launcher3's APK (com.android.launcher3)
How to prevent SECUSO Privacy Friendly Net Monitor apps from shutdown without my permission
Install Lineage OS on Samsung Galaxy S4 and S5, heimdall problems
Google drive making extra local copy on phone
Can .nomedia be a folder?
How can I use browser userscripts on my Android phone?
Play Protect : Device not certified - What does it mean?
What happens if vendor partition is corrupted?

Topics

2D Engines   3D Engines   9-Patch   Action Bars   Activities   ADB   Advertisements   Analytics   Animations   ANR   AOP   API   APK   APT   Architecture   Audio   Autocomplete   Background Processing   Backward Compatibility   Badges   Bar Codes   Benchmarking   Bitmaps   Bluetooth   Blur Effects   Bread Crumbs   BRMS   Browser Extensions   Build Systems   Bundles   Buttons   Caching   Camera   Canvas   Cards   Carousels   Changelog   Checkboxes   Cloud Storages   Color Analysis   Color Pickers   Colors   Comet/Push   Compass Sensors   Conferences   Content Providers   Continuous Integration   Crash Reports   Credit Cards   Credits   CSV   Curl/Flip   Data Binding   Data Generators   Data Structures   Database   Database Browsers   Date &   Debugging   Decompilers   Deep Links   Dependency Injections   Design   Design Patterns   Dex   Dialogs   Distributed Computing   Distribution Platforms   Download Managers   Drawables   Emoji   Emulators   EPUB   Equalizers &   Event Buses   Exception Handling   Face Recognition   Feedback &   File System   File/Directory   Fingerprint   Floating Action   Fonts   Forms   Fragments   FRP   FSM   Functional Programming   Gamepads   Games   Geocaching   Gestures   GIF   Glow Pad   Gradle Plugins   Graphics   Grid Views   Highlighting   HTML   HTTP Mocking   Icons   IDE   IDE Plugins   Image Croppers   Image Loaders   Image Pickers   Image Processing   Image Views   Instrumentation   Intents   Job Schedulers   JSON   Keyboard   Kotlin   Layouts   Library Demos   List View   List Views   Localization   Location   Lock Patterns   Logcat   Logging   Mails   Maps   Markdown   Mathematics   Maven Plugins   MBaaS   Media   Menus   Messaging   MIME   Mobile Web   Native Image   Navigation   NDK   Networking   NFC   NoSQL   Number Pickers   OAuth   Object Mocking   OCR Engines   OpenGL   ORM   Other Pickers   Parallax List   Parcelables   Particle Systems   Password Inputs   PDF   Permissions   Physics Engines   Platforms   Plugin Frameworks   Preferences   Progress Indicators   ProGuard   Properties   Protocol Buffer   Pull To   Purchases   Push/Pull   QR Codes   Quick Return   Radio Buttons   Range Bars   Ratings   Recycler Views   Resources   REST   Ripple Effects   RSS   Screenshots   Scripting   Scroll Views   SDK   Search Inputs   Security   Sensors   Services   Showcase Views   Signatures   Sliding Panels   Snackbars   SOAP   Social Networks   Spannable   Spinners   Splash Screens   SSH   Static Analysis   Status Bars   Styling   SVG   System   Tags   Task Managers   TDD &   Template Engines   Testing   Testing Tools   Text Formatting   Text Views   Text Watchers   Text-to   Toasts   Toolkits For   Tools   Tooltips   Trainings   TV   Twitter   Updaters   USB   User Stories   Utils   Validation   Video   View Adapters   View Pagers   Views   Watch Face   Wearable Data   Wearables   Weather   Web Tools   Web Views   WebRTC   WebSockets   Wheel Widgets   Wi-Fi   Widgets   Windows   Wizards   XML   XMPP   YAML   ZIP Codes