Untouchable state

Question

When I connect my device with USB to Windows PC it shows as




Marshall London HS-USB Diagnostics 9006




at device manager. Windows finds multiple device partitions and asks if I want to format them.



Device cannot boot properly. I cannot enter download mode or do factory reset with button combinations. Screen shows LG logo for a while and then goes dark (backlights still on). While logo is still up, it shows




Boot certification verify




message.



I have tried to connect to device with multiple tools, including ADB/Fastboot with no luck.



I got there by doing factory reset on rooted device. I got that message before I was doing factory reset and device booted just fine.



How do I connect to my device in order to flash its firmware? Or might be just restore to previous state? What does that boot certification message mean?


— featherbits | Sources

Answer

— featherbits | Sources

Q & A

Hidden alarm at everyday 12AM
Calibrating/Correctly draining an Extended Battery
How do I disable audio pause in Android 5.0 when receiving notifications?
Auto-sync is turning itself on randomly
Restoring backups from SD
How to get out off bootloop?
Tell me what is actually broken
Galaxy Tab S2 is psuedo-bricked; will not get past activation process
Cannot format userdata, Fastboot refuses to detect
Persistent Loading in Chrome
Dangers of modifying a manufacturer firmware
fastboot works, adb doesn't
Is there a way to access the phone filesystem from computer, wireless?
How can I limit WiFi data usage to activities I explicitly allow?
How to minimize the app window (freeform mode/pop-up view)?
How can I rename an app on my phone, and what are the consequences?
Bootanimation command not recognized without root
Where can I find the Xposed Framework and installer for Nougat?
How does the android graphics stack work?
How do I delete application sync data permanently?

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