Dead iPhone 14 Pro Max? The fault may be a BB PMIC short.
A real case where a phone looked completely dead, but the fault was a specific baseband power-management short.
Read the guideRepair guides
Real repair insights from faults that simple part swaps do not solve.
These guides are written from real Tech2Fix bench cases. They explain what a symptom looked like, what the true fault turned out to be, and why specialist diagnosis matters before replacing the device.
Start with the thing you can see: no power, no WiFi, charging trouble, liquid damage or a repair-process question. From there, the guides below point you to the right type of explanation.
01
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Case files
Real jobs from the Tech2Fix bench: dead devices, no-WiFi faults, liquid damage and board-level diagnosis.
Open case files archiveiPhone 12 Pro no WiFi: when the fault sits in the sandwich board.
Why a no-WiFi iPhone can be a board-layering issue rather than a simple antenna or software problem.
Read the guideDead iPhone 13 Pro diagnosis: shorted U8300 audio IC.
A dead-device case where the answer came from isolating the short, not guessing at parts.
Read the guideiPad flashing Apple logo after water damage.
A boot-loop case where corrosion near the battery connector changed the whole diagnosis.
Read the guide02
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Fault patterns
The symptoms we see repeatedly, what they can mean, and why the obvious part is not always the failed part.
Open fault-pattern archiveThe most common dead-phone fault patterns we see.
A broader guide built from repeated dead-device cases: shorts, charging-path faults, board damage and why "dead" is never the diagnosis by itself.
Read the guideCharging faults that mislead diagnosis.
What repeated cases show about no-charge symptoms: when they are ports, when they are rails, and when they imitate more serious faults.
Read the guideWater-damage symptoms that point the wrong way.
How corrosion can mimic storage, display, charging or power faults before the board is inspected properly.
Read the guide03
Collection
Customer help
Help with sending a device in, packing it safely, checking repair progress and understanding warranty cover.
Open customer-help archiveHow Tech2Fix mail-in repair works from booking to return.
A customer-friendly walkthrough of the full process: booking, shipping, diagnosis, quote approval, repair and return.
Read the guideHow to pack your phone or iPad for mail-in repair.
The simplest way to avoid preventable damage in transit and make sure the parcel reaches the lab ready for assessment.
Read the guideTech2Fix shipping and packing guide.
Royal Mail small-parcel limits, the Tech2Fix label and the packing standard for sending a device safely.
Read the guideHow Tech2Fix repair tracking works.
What the tracking page shows, why postcode matching is used, and what each status means for your repair.
Read the guideHow Tech2Fix warranty claims work.
What is covered, how to start a claim, and how the QR claim route fits into the repair aftercare process.
Read the guideNeed a diagnosis, not a guess
Send the device in only when you want a proper answer.
Book the diagnostic route, get the findings and approve repair only when the fault is clear.