7 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
An owner describes random reboots that escalate to failure to boot past the Apple logo; a repair answer points to NAND storage failure.
What to check. If a 15 Pro Max starts randomly rebooting and then fails to boot, treat it as a hardware fault, not a software glitch. Back up data early, because a NAND failure can make data unrecoverable and the fix is board-level.
Reported on: zh.ifixit.com
A German owner's device failed outright after ~18 months of light use; an Apple Authorized Service Provider diagnosed a logic board defect and quoted ~€700 for a board replacement, with data unrecoverable.
What to check. A sudden no-charge/dead state after 1–2 years can be a logic board failure, not the battery. The fix is a costly board swap and data is typically lost, so keep backups and be aware the repair can approach €700.
Reported on: ifone.de
A Turkish owner of a 1 TB unit reports freezing, a faulty touchscreen from day one, self-restarts, and camera focus failure; the service report listed multiple faulty components and the device was returned with a new IMEI.
What to check. In the Turkish market, some units show combined hardware faults (freezing, touchscreen, camera) within the first months. If you buy one, test touch, camera focus, and stability during the return window, and keep the service report.
Reported on: sikayetvar.com
A news report on iOS 27 complaints quotes an iPhone 15 Pro Max owner reporting higher battery consumption after the update.
What to check. Battery drain on the 15 Pro Max is often tied to a recent iOS release rather than a worn battery. Before paying for a battery swap, wait for a point update and check battery usage in Settings.
Reported on: english.mathrubhumi.com
A UK repair guide states a persistent green/pink line on the 15 Pro Max panel means a damaged row driver and requires a screen replacement.
What to check. A permanent green or pink line on the display is a panel fault, not a software glitch, and needs a screen replacement. If the line is intermittent, try a forced restart first, but a fixed line will not clear on its own.
Reported on: phonerepair.co.uk
A German owner reports the phone restarting on its own and can reproduce a restart by tapping the back, pointing to an internal loose contact rather than software.
What to check. A device that restarts when tapped or knocked is a hardware contact problem, not an iOS bug. It tends to worsen over time and is not fixed by a software update.
Reported on: computerbase.de
A Turkish tech-news report on iOS 26 complaints lists performance drop, heavy visual effects, and battery consumption as the standout issues on the iPhone 15 Pro and Pro Max.
What to check. After a major iOS release, the 15 Pro Max can feel slower and drain battery faster. This is usually temporary software indexing; hold off on hardware repairs until a point update ships.
Reported on: cnnturk.com
Kriko reads a listing and tells you which of these apply to that exact product. It runs on your computer, needs no account and is free.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Smartphones catalog, version 0.1.1, under the CC-BY-SA-4.0 license.
