META QUEST 2 Screen Black

Internal Lithium-ion Battery

Deep discharge cycles or prolonged storage in a depleted state causes internal resistance to increase within the Lithium-ion cells. During the boot sequence, the transition from the low-power logo to the high-power rendering of the home environment causes a current spike that the degraded battery cannot sustain, resulting in a system hang or display rail shutdown while the backlight remains powered.

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Proximity Sensor Flex Cable

The proximity sensor utilizes an infrared beam to detect user presence; if the sensor's logic circuit or the flex cable assembly is compromised, the device will remain in an 'Idle' state. In this state, the OS may boot in the background, but the display drivers are intentionally kept in a 'black' state to prevent thermal buildup and power consumption.

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Mainboard Assembly

If the device displays the boot logo but fails to initialize the shell after a factory reset, the failure mode is likely localized to the eMMC or UFS storage on the mainboard. Physical degradation of the flash memory cells prevents the loading of the Android-based OS environment, necessitating a replacement of the logic board.

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