Samsung Diagnostics & Fault Manuals
Manufacturer of Galaxy S25 / S24 Ultra, Dynamic AMOLED 2X displays, and Galaxy AI hardware platforms.
Equipment Models
Hardware families produced by Samsung
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S24 Ultra
46 guidesClass: Snapdragon 8 Gen 3 Titanium Phone
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Galaxy S25 Ultra
1 guidesClass: Snapdragon 8 Elite Flagship (Galaxy AI)
Indexed Error Codes for Samsung
Machine-verified error code diagnostic walkthroughs
45W Fast Charging Thermal Disconnect
SEC_CHG_ERR_04 is triggered by the Intermediate Frequency Power Management IC (IF-PMIC) or fuel gauge when the sub-board/battery NTC thermistor registers operational temperatures exceeding safety thresholds (typically above 45°C to 50°C) during 45W Super Fast Charging 2.0 (PPS negotiated rail), forcing power rail isolation to prevent thermal runaway.
Moisture Detected False Alarm Loop
The USB-PD protection controller or CC (Configuration Channel) pin sensing circuit detects anomalous micro-current leakage (<50uA) or impedance shift (<100k Ohm across VBUS/GND/CC pins) due to conductive debris, corrosion, or corrupted USBSettings daemon cache, triggering a persistent software-locked moisture lockout.
Fast Charging Low Temperature Alert
SEC_BATT_ERR_04 indicates a battery thermal monitoring fault where the Power Management IC (PMIC) detects an out-of-spec low-temperature reading (typically below -5°C/23°F) from the thermistor line. Charging is suspended to prevent lithium plating and permanent dendritic damage to the pouch cell.
Primary Wide Camera Failure
The camera subsystem kernel driver failed I2C/SPI handshaking or MIPI CSI-2 lane link negotiation with the primary 200MP ISOCELL HP2 wide-angle image sensor module. The hardware supervisor triggered an assertion trip due to missing power rail compliance (DVDD/AVDD) or damaged voice coil motor (VCM)/optical image stabilization (OIS) driver feedback.
5x Periscope OIS Actuator Lock
The camera driver IC detected a physical or magnetic stall in the 5x periscope telephoto voice coil motor (VCM) / Hall sensor feedback loop. Driver circuit shut down drive current to prevent coil burnout.
Intermittent USB Moisture Detected Fault
The USB-C controller PMIC triggered an analog impedance trip on the CC (Configuration Channel) or SBU pins, registering low resistance (<200 kΩ to GND) caused by liquid ingress, conductive debris, or corroded PCB traces. Fast charging protocols (USB-PD / PPS) are locked out to prevent galvanic corrosion and VBUS short-circuits.
Camera Failed ISP Bus Timeout
Fault 0x00000004 indicates an MIPI CSI-2 transmission bus timeout between the primary camera sensor module and the application processor Image Signal Processor (ISP), triggered by rail collapse, flex disconnection, or module hardware failure.
Camera Failed 5x OIS Fault
During camera subsystem power-on self-test (POST), the ISP/AP fails to initialize the 50MP 5x periscope telephoto voice coil motor (VCM) or optical image stabilization (OIS) driver IC over the I2C/SPI bus, triggering an unhandled camera HAL exception and resulting in a fatal 'Camera Failed' UI warning.
Camera Failed 5x Telephoto Buzzing
The camera subsystem crashes with 'Warning: Camera Failed' when initiating 5x zoom due to a physical jam or open/shorted Voice Coil Motor (VCM) / Hall sensor feedback loop in the 50MP periscope telephoto module. The buzzing acoustic noise indicates the driver IC is PWM-hunting to establish magnetic equilibrium, triggering a kernel camera-daemon watchdog timeout.
USB Moisture Detected False Trigger
The hardware protection IC continuously detects impedance drop or stray micro-current across the USB Type-C CC (Configuration Channel) pins, falsely triggering the water ingress latch in the Android OS kernel and blocking wired charging.
5x Periscope Telephoto Actuator Failure
The camera subsystem threw a fatal 'Camera Failed' kernel alert due to a closed-loop Hall sensor or Voice Coil Motor (VCM) feedback timeout on the 50MP 5x folded periscope telephoto module during power-on self-test (POST).
5x Telephoto OIS Sensor Shift Failure
Hardware-level actuator fault where the Camera HAL fails to initialize the 50MP periscope telephoto sensor-shift voice coil motor (VCM) feedback loop due to mechanical jamming, flex open-circuit, or LDO rail drop below 2.85V.
5x Telephoto OIS Rattle Failure
A fatal camera initialization fault triggered when the device cannot calibrate the 50MP 5x periscope telephoto module. Audible rattling indicates mechanical dislodgement or drive coil failure within the electromagnetic voice coil motor (VCM) or ball-bearing OIS suspension guide.
5x Periscope OIS Actuator Jam
The camera subsystem threw an unrecoverable hardware exception due to the 5x periscope telephoto voice coil motor (VCM) or ball-bearing suspension rail jamming. The Camera HAL detects an open-loop condition when Hall effect position sensors fail to report optical axis movement matching drive current, triggering a safety shutoff to prevent driver IC burnout.
5x Telephoto Banding and Hunting
Horizontal read-out banding, excessive chromatic noise, and Voice Coil Motor (VCM) focus hunting in the 50MP 5x periscope telephoto module caused by MIPI CSI-2 differential signal degradation, power rail ripple, or jammed Hall-effect sensor feedback.
Display Grainy Texture Low Brightness
Low-luminance display non-uniformity (mura effect) manifesting as a paper-like, sandy, or grainy texture on AMOLED panels at low brightness settings. Caused by threshold voltage (Vth) dispersion in low-current driving regimes across individual subpixel Thin-Film Transistors (TFTs) and uneven anti-reflective glass coating optics.
Display Grain Mura Subpixel Issue
Non-uniform luminance output (mura effect) across the Dynamic AMOLED 2X panel caused by low-drive current variation in individual LTPS/LTPO subpixel thin-film transistors (TFT) at ultra-low nit values.
Telephoto OIS Failure Banding
Voice coil motor (VCM) or Hall sensor feedback failure inside the 5x/10x periscope telephoto module causes high-frequency mechanical oscillation, inducing horizontal CMOS sensor rolling shutter banding and triggering firmware safety shutdown.
Display Grain Mura Effect
Low-luminance display non-uniformity (mura effect) on the Dynamic AMOLED 2X panel caused by subpixel luminance variance at 492 Hz PWM dimming thresholds coupled with anti-reflective glass refraction.
Display Grain and Mura Defect
Sub-pixel luminance non-uniformity across the Dynamic AMOLED 2X panel caused by low-drive current mismatch and fine metal mask (FMM) variance at low brightness thresholds, exacerbated when the display controller throttles refresh rates to 60Hz or lower during 492Hz PWM cycles.
Display Grainy Texture Low Brightness
Sub-pixel luminance non-uniformity across the Dynamic AMOLED 2X panel caused by hardware-level Low-Temperature Polycrystalline Oxide (LTPO) backplane threshold voltage (Vth) variations during low-current sub-10 nit driving states, exacerbated by software de-mura compensation curves.
5x Telephoto OIS Sensor Shift Failure
The 50MP periscope telephoto module's dual-axis voice coil motor (VCM) and Hall effect sensor-shift feedback loop failed self-test during camera initialization, triggering a Camera Failed hardware interlock.
Moisture Detected Port Error
The hardware moisture detection circuit within the USB Type-C interface controller (CC logic / SBU lines) has detected sub-threshold impedance or galvanic leakage currents, asserting the USB-PD protection state and preventing wired VBUS charging.
Telephoto Camera OIS Stall Failure
The camera application terminates with a 'Warning: Camera Failed' modal due to a closed-loop Optical Image Stabilization (OIS) or Voice Coil Motor (VCM) feedback timeout. The driver IC detected mechanical resistance or open-loop hall sensor drift on the 5x/10x periscope telephoto prism rail.
Grainy Display Low Brightness Mura
Sub-pixel luminance non-uniformity across the Dynamic AMOLED 2X panel caused by low-current drive variance at lower brightness levels (Mura effect). This manifests as a fine grain or sandpaper texture when driving sub-pixels under ~10-15 nits due to microscopic threshold voltage (Vth) shifts in the LTPS/LTPO thin-film transistor backplane.
Moisture Detected Warning Dry Loop
The USB Type-C interface controller (CC logic) registers persistent low impedance between VBUS, CC1/CC2, and GND lines despite a physically dry port. This triggers continuous hardware interrupt warnings from the USBDaemon subsystem, blocking wired charging.
Low Brightness Display Grain Mura
Visible granular, sand-like texture (mura defect) observed on Dynamic AMOLED 2X panel at sub-15% luminance levels. Caused by individual sub-pixel drive voltage variance (Vth mismatch) across the LTPS/LTPO TFT backplane, exacerbated by anti-reflective Gorilla Armor glass coatings.
5x Telephoto OIS Actuator Stall
The periscope 5x telephoto camera module Voice Coil Motor (VCM) or ball-bearing guide rail has mechanically seized or exceeded current draw limits during closed-loop Hall sensor calibration, causing the ISP to force shutdown the telephoto module.
Display Grain Mura Effect
Non-uniform luminance and micro-grain texture (mura) visible on dark/gray backgrounds under low ambient brightness at 120Hz refresh rates, caused by subpixel drive voltage inconsistencies on the Dynamic AMOLED 2X panel.
Camera Failed Periscope Zoom Error
The Camera subsystem trips a fatal 'Warning: Camera Failed' exception due to a MIPI CSI-2 timeout or power delivery failure to the secondary telephoto module (Sony IMX854 50MP 5x periscope) when switching from 1x/3x to 5x zoom. The AP fails to establish an I2C handshake with the sensor/OIS actuator driver.
5x Telephoto Camera Sensor Freeze
The camera application terminates with a 'Warning: Camera Failed' modal due to a MIPI CSI-2 transmission timeout or VCM (Voice Coil Motor) drive stall on the 50MP 5x periscope telephoto sensor module, triggering the kernel camera watchdog.
OLED Display Grain Low Brightness
Subpixel luminance variance across the Dynamic AMOLED 2X panel at low current injection levels. Under low ambient brightness (<10 nits) and active 492 Hz pulse-width modulation (PWM), discrete LTPS/LTPO TFT gate threshold voltage (Vth) shifts cause non-uniform micro-luminance (mura effect) across the subpixel matrix.
Camera OIS Actuator Driver Freeze
The camera subsystem triggered a driver stall interrupt due to unresponsive I2C/SPI communication with the Voice Coil Motor (VCM) or Shape Memory Alloy (SMA) OIS driver IC. The Application Processor (AP) halts the camera daemon and throws a 'Camera Failed' warning to protect the driver from thermal runaway.
S24 Ultra 5x Camera Failed
The camera subsystem crashes with 'Warning: Camera Failed' when initiating 5x zoom due to a hardware initialization timeout or driver stall on the 50MP periscope telephoto voice coil motor (VCM) or optical image stabilization (OIS) actuator.
OLED Grainy Mura Defect Fix
Sub-pixel luminance non-uniformity across the Dynamic AMOLED 2X panel at low brightness (<15 nits), caused by sub-pixel threshold voltage (Vth) mismatch or defective de-mura calibration data within the Display Driver IC (DDIC).
Moisture Detected Port Error Stuck
The hardware liquid detection circuit across the USB Type-C interface detected low impedance/galvanic continuity across CC (Configuration Channel) lines or VBUS to GND, triggering Android's kernel-level UsbDeviceManager protection latch. A persistent false positive typically indicates conductive particulate buildup, pin corrosion, or a corrupt USBSettings daemon cache.
50MP Telephoto OIS Coil Short
The camera application terminates with a 'Warning: Camera Failed' popup due to the internal camera driver IC detecting an overcurrent condition or low impedance on the 50MP periscope telephoto Optical Image Stabilization (OIS) Voice Coil Motor (VCM) drive lines, tripping hardware overcurrent protection.
5x Telephoto Camera Server Died
The Android cameraserver daemon terminated unexpectedly (SIGSEGV or binder transaction failure) after failing to establish I2C/SPI handshake or MIPI-CSI frame synchronization with the 50MP 5x periscope telephoto module. This triggers a hardware safety cut or daemon crash when switching to 5x optical zoom.
Periscope Telephoto Actuator Failure
The camera subsystem encountered an actuator driver timeout or feedback anomaly on the 50MP 5x periscope telephoto module. The Image Signal Processor (ISP) aborted optical initialization due to a Voice Coil Motor (VCM) open circuit, Hall sensor positional feedback out-of-range, or a mechanical seizure along the ball-bearing suspension rail.
5x Telephoto Actuator Failure
Closed-loop feedback failure on the 50MP 5x periscope folded telephoto actuator assembly. The camera subsystem Hardware Abstraction Layer (HAL) halts the camera service when the Voice Coil Motor (VCM) or Optical Image Stabilization (OIS) Hall-effect sensor fails to report target coordinates within the driver IC timeout window, often caused by mechanical binding, open coil windings, or missing LDO drive voltages.
S24 Ultra 5x OIS Actuator Failure
The periscope 5x telephoto optical image stabilization (OIS) voice coil motor (VCM) or ball-bearing suspension rail has suffered mechanical dislocation or driver feedback decoupling. The camera HAL encounters a closed-loop positioning fault, tripping camera protection and throwing a Camera Failed warning.
5x Periscope Telephoto OIS Stall
The camera driver detected an Optical Image Stabilization (OIS) voice coil motor (VCM) or ball-bearing suspension jam on the 50MP 5x periscope telephoto module. The camera firmware triggered a safety stall shutdown after closed-loop Hall sensor feedback failed to match drive current PWM expectations.
5x Telephoto Prism Actuator Lockup
The camera application terminates with a 'Warning: Camera Failed' modal due to a closed-loop positioning fault in the 50MP 5x periscope telephoto module. The optical image stabilization (OIS) ball-bearing voice coil motor (VCM) or Hall sensor detected mechanical prism binding or an unrecoverable position offset during initial power-on self-test calibration.
5x Telephoto OIS Actuator Jam
The camera subsystem triggered a driver hardware fault and software crash due to physical resistance or failure in the 50MP 5x periscope telephoto voice coil motor (VCM) or ball-bearing OIS guide rail assembly. The application processor failed the closed-loop Hall effect sensor positional feedback check during initialization.
Moisture Detected in USB-C Charging Port False Alarm
The Galaxy S25 Ultra safety sensor locks down the USB Type-C port, beeping loudly with a waterdrop icon: "Moisture detected. Unplug charger immediately". In dry environments, this false alert is triggered by conductive pocket debris or corrupted USBSettings system cache.
Camera Failed 5x Sensor Fault
A hardware initialization or communication timeout on the 50MP periscope 5x optical telephoto module. The Camera HAL aborts operation and triggers the 'Warning: Camera Failed' UI dialog when MIPI CSI-2 data lines fail or LDO power rails collapse.
5x Telephoto OIS Camera Failure
During camera subsystem power-on self-test (POST) or dynamic lens switching, the device fails to establish closed-loop feedback with the 5x periscope telephoto module's Optical Image Stabilization (OIS) Voice Coil Motor (VCM) driver and Hall effect positioning sensors. When the camera HAL detects an open loop, driver communication timeout over I2C/SPI, or physical actuator lockup, the Android camera service aborts execution to protect drive circuitry, presenting the 'Warning: Camera Failed' modal.