• SM-A21S SIM CARD

    SIM card reader schematic for the Samsung SM-A21s, PDF, 3.81 MB. The page covers the SIM socket circuit, usually its supply, clock, reset and data lines plus protection…

    Schematic · 3.81 MB · 2 Apr 2026
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  • SM-A21S CAMERA 2MP DEPTH

    Depth camera schematic for the Samsung SM-A21s covering the 2MP depth sensor, PDF format, 3.82 MB.

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S LCD

    Display circuit schematic for the Samsung SM-A21s, PDF of 3.82 MB. It documents the LCD connector and the supply and data lines feeding the panel.

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S CHARGER & DATA

    Charging and data schematic for the Samsung SM-A21s, PDF, 3.82 MB. It covers the USB connector, protection components, charging circuitry and USB data lines.

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S FRONT CAMERA

    Front camera schematic for the Samsung SM-A21s, PDF, 3.82 MB. It shows the selfie camera connector together with its power rails and data connections to the main board.

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S NETWORK

    Network section schematic for the Samsung SM-A21s, a smaller 1.93 MB PDF. It covers the cellular radio part of the board, typically the RF transceiver, power amplifiers…

    Schematic · 1.93 MB · 2 Apr 2026
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  • SM-A21S LCD LIGHT

    Backlight circuit schematic for the Samsung SM-A21s, a 3.82 MB PDF. It covers the LCD light section, typically the backlight driver, its boost inductor and diode, and…

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S BACK CAMERA 2MP MACRO

    Macro camera schematic for the Samsung SM-A21s, showing the 2MP macro module circuit, PDF, 3.82 MB.

    Schematic · 3.82 MB · 2 Apr 2026
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    3.82 MB
  • SM-A21S SD CARD

    Memory card slot schematic for the Samsung SM-A21s, provided as a 3.81 MB PDF. It documents the microSD reader circuit, typically the slot supply, data and clock lines…

    Schematic · 3.81 MB · 2 Apr 2026
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    3.81 MB
  • SM-A21S COMPONENT NAME

    Component name sheet for the Samsung SM-A21s, a 3.81 MB PDF from the schematic set. Judging by the title, it identifies board parts by designator so a component named in…

    Schematic · 3.81 MB · 2 Apr 2026
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  • SM-A21S WIFI BT GPS

    Wireless section schematic for the Samsung SM-A21s, covering WiFi, Bluetooth and GPS, in a 3.82 MB PDF.

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S BACK CAMERA 8MP ULTRAWIDE

    Ultrawide rear camera schematic for the Samsung SM-A21s, covering the 8MP module, as a 3.83 MB PDF.

    Schematic · 3.83 MB · 2 Apr 2026
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  • SM-A21S TOUCH SCREEN

    Touch screen circuit sheet for the Samsung SM-A21s, a PDF schematic of 3.82 MB. It shows the display and touch connector side relevant to the touch panel, typically the…

    Schematic · 3.82 MB · 2 Apr 2026
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  • BACK CAMERA 48MP WIDE

    Rear camera schematic for a 48MP wide main camera, PDF of 3.82 MB. The name itself does not state the phone model; the file size matches the Samsung SM-A21s sheets, but…

    Schematic · 3.82 MB · 2 Apr 2026
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  • SM-A21S ON OFF VOL

    Power and volume button schematic for the Samsung SM-A21s in PDF form, 3.82 MB. It shows the key circuit for the on/off and volume controls, usually the side-key…

    Schematic · 3.82 MB · 2 Apr 2026
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  • A20s SIM CARD-@phoneschematic

    Schematic excerpt covering the SIM card circuit of an A20s handset, presumably the Samsung Galaxy A20s, in a 2.82 MB PDF.

    Schematic · 2.82 MB · 27 Dec 2023
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    2.82 MB