Signed Firehose / OEM root trust
Sahara/Firehose failure can involve programmer compatibility, transport, authentication or DDR programmer context. Do not reduce every failure to storage.
ANDROID CHIPSET / SERVICE MODE / LOW-LEVEL BOOT
Five platforms.
Five platforms.
Five different service paths.
Qualcomm, MediaTek, Unisoc, Samsung Exynos and Google Tensor are handled as separate boot/service architectures with their own USB modes, loaders, security layers and partition workflows.
MULTI-PLATFORM SERVICE ARCHITECTURE
QUALCOMMEDL / Firehose
MEDIATEKBROM / DA
UNISOCFDL / PAC
EXYNOSOdin / PIT
TENSORFastbootd / AVB
Service-mode presence is evidence of boot progress, not automatic proof of a specific storage, CPU, RAM or BGA fault.
01 — PLATFORM SELECTOR
Choose the SoC family first
The uploaded source already defines five different platform pipelines. V2 keeps that separation and expands the diagnostic context around each one.
02 — LOW-LEVEL BOOT / SERVICE PIPELINE
Platform startup chain
Click a stage to inspect the expected loader, USB mode, partition/security context and what a failure at that point actually proves.
03 — PLATFORM FAILURE PROFILER
USB state → protocol → evidence → next action
Current profiles and service-mode states are retained from the source as examples, while V2 avoids using them as single-test component verdicts.
SELECTED PLATFORM CASE
Source-derived evidence
Required confirmation
Partitions / security focus
EXAMPLE CURRENT / STATE PROFILE
04 — MASTER PLATFORM DATABASE
Boot stages, partitions, USB modes and security layers
Search platform-specific boot stages and partition/security context from the uploaded source.
| Platform | Stage / Partition | USB Mode | Security / Verification | Power / Signal Reference | Failure Context |
|---|
05 — SECURITY / AUTHORIZATION STATE
Security failures are not hardware failures
Locked bootloaders, signed programmers, SLA/DAA, Knox/KG/VaultKeeper, AVB and rollback policy must be treated separately from power, storage and DRAM faults.
SLA / DAA / authorized DA
V2 records authentication/security state and supported service workflow. It does not treat generic security bypass as a normal repair step.
Signed FDL / secure boot
FDL compatibility and security verification can fail before external DRAM or storage are proven faulty.
Knox / KG / VaultKeeper
Download-mode access, repartitioning and flashing can be constrained by bootloader/security state independently of storage health.
AVB / A-B / rollback policy
Separate slot state, bootloader lock, verified boot and rollback policy from hardware storage or modem problems.
06 — SERVICE MODE INTERPRETER
Use the port as a boot-progress clue
Choose the observed service mode and V2 will route the technician toward the right platform stage.