Disconnects, enumeration loss, cable/port instability
Confirm host port, cable, device connector, USB-controller power and repeatability before NAND or sandwich work.
IPHONE RESTORE / DFU / RECOVERY FORENSICS
Read the stage.
Read the stage.
Then prove the fault.
Interpret restore errors using the exact log, restore phase, USB transport state, NAND/baseband/security evidence and board measurements. Progress percentage alone is not a hardware verdict.
RESTORE EVIDENCE CHAIN
USB
iBSS/iBEC
VERIFY
WRITE
MODEM/SEP
FINALIZE
Error number + percentage + exact failing command + electrical evidence should agree before BGA or destructive repair.
01 — RESTORE EXECUTION PIPELINE
Use percentage as a rough stage clue, not a fixed map
The uploaded source divides restore into percentage windows. V2 preserves the stages but explicitly treats percentages as tool/build-dependent observations.
02 — ERROR PROFILE ENGINE
Error → stage → competing causes → confirmation
Select an error family to build a safe bench route.
SELECTED ERROR FAMILY
What the error supports
Competing causes
Evidence to capture
03 — LIVE RESTORE LOG PARSER
Parse the failing command, not only the error number
Paste Apple Devices/Finder/iTunes/Configurator/3uTools log text or use a sample.
04 — RESTORE CHECKPOINT DATABASE
Voltage + GR + resistance + scope state
Uploaded-source values are kept as source references. Exact-model known-good measurements take priority.
| Domain | Rail / Signal | Source Voltage | Source GR | Resistance | Scope / State | What abnormal supports |
|---|
05 — LIVE RESTORE-LINE EVALUATOR
One reading narrows the branch
Classify the electrical state without turning it into an automatic IC diagnosis.
06 — RESTORE FAILURE SEPARATION MATRIX
USB vs storage vs baseband vs security
Use the exact symptom family before invasive board work.
ANS/NVMe/read-write/partition evidence
Confirm storage rails, reset/interface and repeated read/write failure. Error 9/4013 alone is not sufficient.
Modem firmware / IPC / identity evidence
Check modem power/reset/clock/IPC and baseband identity before interposer rework.
Authentication/peripheral verification
Use exact restore-log text plus paired/peripheral state; do not map an 80% halt to Face ID/NFC universally.
APFS capacity / extraction failure
Preserve data goals first. Do not recommend destructive erase as the first action when data recovery matters.
Early disconnect or iBSS/iBEC instability
Check USB transport, PMIC/SoC/RAM rails and repeatability before CPU/RAM reball.
07 — RESTORE CASE DOSSIER
Preserve the exact restore evidence
Generate a standardized record for future comparison.