iFixit - Answers With Device "iPhone 16 Plus"

iPhone 16 Plus: Does the iPhone 16 Plus have a gasket on its sim tray

Fri, 23 May 2025 04:36:29 -0700

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iPhone 16 Plus: Panic log help: 16+ battery stuck at 1%, stops charging when booted

Sun, 12 Jul 2026 08:54:10 -0700

Hello, I was hoping someone could help me decipher the panic log on an iPhone 16 Plus. The phone charges normally when first plugged in, but stops charging as soon as it's fully booted (the charging icon still shows up, but no power is going to phone) and the battery indicator always shows "1%". It then crashes after ~3min.

I've already replaced both the battery and the charging port (with aftermarket parts from IG), but neither has impacted the behavior of the device.

I believe the relevant part of the panic log is here:

"panicString" : "panic(cpu 0 caller 0xfffffff03eba9a94): SMC PANIC - ASSERT: target\/d48a\/target.cpp:248: 0, SMC BSC failure, TB0T SBAP\nspreadsheet ver(*10) 110\nS.sensor array 0 - 7 is 169, 0, 0, 0, 0, 0, 0\nF.sensor array 0 - 1 is 0\n\n - Misc(2) OUTBOX1 not ready\nASSERT: target\/d48a\/target.cpp:248: 0, SMC BSC failure, TB0T SBAP\nspreadsheet ver(*10) 110\nS.sensor array 0 - 7 is 169, 0, 0, 0, 0, 0, 0\nF.sensor array 0 - 1 is 0\n\n\nRTKit: root

As far as I understand, the "SMC BSC failure" indicates a sensor not communicating with the SMC, and the "TB0T" lead me to suspect the battery. However, the behavior is identical with the original battery and the replacement battery. There's no obvious liquid or physical damage to the device.

Anyone know what sensor is being indicated, or what the issue is if I'm totally misreading it? I can post more of the log if helpful. Thanks so much,

Henry Chung

⟐ Answered July 12, 2026 at 8:54 MST

iPhone 16 Plus: Why do all games keep lagging and only sometimes adjust to 60 FPS

Sun, 05 Oct 2025 06:06:41 -0700

Sometimes it just stays locked in at 30 FPS and I have to restart the game and wait for it to adjust to 60 FPS sometimes it keeps switching between 30 to 60 FPS every half a second and only after like 30 minutes, it starts to run at 60 FPS. I checked every setting even the game settings and there’s nothing limiting frames per second. How can I fix it? And the games are lightweight like geometry dash, levels like button masher, and Roblox private servers.

⟐ Commented October 05, 2025 at 6:06 MST

iPhone 16 Plus: I had a Panic CPU 4 Caller in my panic log

Mon, 22 Sep 2025 20:51:25 -0700

Hi,

Please help. My new iPhone 16 Plus had a sudden shutdown and when I checked analytics, it shows a panic full and says Panic CPU 4 caller. Can you please help me identify if it is a software or a hardware issue. The Apple service center was too far from my location so I needed some insights if this crash needed an urgent service or it can be resolve with troubleshooting.

⟐ Commented September 22, 2025 at 20:51 MST

iPhone 16 Plus: Front camera doesnt work after motherboard swap

Sat, 25 Oct 2025 11:28:16 -0700

Hello, on iphone 16 plus i recently swapped motherboard to icloud locked phone, (I took camera from same phone where was motherboard), it works but on all components expect rear camera it says they are locked but work, but face id and front camera dont work. It just say issue. I tried restoring via dfu mode with apple devices app but it kept giving me error 53. I managed to restore with 3u tools but it didnt fix the issue. I also tried using icloud locked camera, but it just said its locked and didnt work. Is there any way to fix it ? Would buying another genuine icloud unlocked cam fix it ?

iPhone 16 Plus: كيفية إزالة حساب I claud من الأيفون How to Remove an iCloud Account

Fri, 22 Aug 2025 09:04:35 -0700

كيفية إزالة حساب i claud من الأيفون

Translation Arabic - English

How to Remove an iCloud Account from an iPhone

⟐ Edited August 22, 2025 at 9:04 MST