- Name Type Board Source Added Size
- 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.81 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 2026Schematic pdf—3.81 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—1.93 MB - SM-A21S MIC SPK EAR
Audio schematic for the Samsung SM-A21s covering microphone, loudspeaker and earpiece, PDF, 3.82 MB.
Schematic · 3.82 MB · 2 Apr 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.82 MB - SM-A21S FINGERPRINT
Samsung SM-A21s fingerprint reader schematic, delivered as a 3.82 MB PDF. The page documents the fingerprint sensor circuit, generally the connector, supply and…
Schematic · 3.82 MB · 2 Apr 2026Schematic pdf—3.82 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 2026Schematic pdf—3.81 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.83 MB - 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 2026Schematic pdf—3.82 MB - 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 2026Schematic pdf—3.82 MB - SM-A20S WIFI BT GPS
Samsung SM-A20S schematic section covering the Wi-Fi, Bluetooth and GPS circuitry, supplied as a 4.63 MB PDF.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S TOUCH SCREEN
Touch screen section of the Samsung SM-A20S schematic, a 4.59 MB PDF document. The pages focus on the touch panel connector, its supply and communication lines and the…
Schematic · 4.59 MB · 2 Apr 2026Schematic pdf—4.59 MB - SM-A20S SIM CARD
PDF schematic extract for the Samsung SM-A20S showing the SIM card circuit, 4.63 MB in size.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S ON OFF VOL
Samsung SM-A20S schematic section for the power (on/off) and volume keys, delivered as a 4.63 MB PDF.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S NETWORK
Network (cellular RF) portion of the Samsung SM-A20S schematic in PDF form, 4.63 MB. The pages cover the radio front end, power amplifiers, antenna switches and the…
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S MIC SPK EAR
Audio section of the Samsung SM-A20S schematic covering microphone, loudspeaker and earpiece circuits, a 4.63 MB PDF.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S LCD
LCD circuit page from the Samsung SM-A20S schematic, provided as a 4.63 MB PDF. It documents the display connector pinout, the display data interface lines and the…
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S LCD LIGHT
Samsung SM-A20S schematic section dedicated to the LCD backlight, 4.62 MB PDF. It covers the backlight driver circuit, its boost coil, diode and capacitors, and the…
Schematic · 4.62 MB · 2 Apr 2026Schematic pdf—4.62 MB - SM-A20S HANDSFREE
Handsfree (headset) section of the Samsung SM-A20S schematic, a 2.07 MB PDF. It shows the headphone jack connections, detection line, audio left and right outputs and…
Schematic · 2.07 MB · 2 Apr 2026Schematic pdf—2.07 MB - SM-A20S FRONT CAMERA
Front camera page of the Samsung SM-A20S schematic, supplied as a 4.63 MB PDF. It lays out the selfie camera connector, its supply rails, clock and data lines, and…
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S COMPONENT NAME
Component name reference for the Samsung SM-A20S, distributed as a 4.63 MB PDF in the same schematic set.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S CHARGER & DATA
Charging and data section of the Samsung SM-A20S schematic, a 4.63 MB PDF. It traces the USB connector, charging IC, VBUS path, data lines and the protection components…
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - SM-A20S BACK CAMERA 13MP WIDE
Schematic section for the 13 MP wide rear camera of the Samsung SM-A20S, provided as a 4.64 MB PDF.
Schematic · 4.64 MB · 2 Apr 2026Schematic pdf—4.64 MB - SM-A20S BACK CAMERA 8MP ULTRAWIDE
Samsung SM-A20S schematic page for the 8 MP ultrawide rear camera, a 4.64 MB PDF. It covers the ultrawide module connector, its supply voltages, clock and data interface…
Schematic · 4.64 MB · 2 Apr 2026Schematic pdf—4.64 MB - SM-A20S BACK CAMERA 5MP DEPTH
Depth camera section of the Samsung SM-A20S schematic, the 5 MP rear sensor, as a 4.63 MB PDF.
Schematic · 4.63 MB · 2 Apr 2026Schematic pdf—4.63 MB - LINEAS DE ALIMENTACION Y COMUNICACION EN EN CONECTOR DEL FLEX DESchematic · 1.97 MB · 1 Apr 2026Schematic pdf—1.97 MB
- SAMSUNG A21S ESQUEMATICO 240821 084427Schematic · 5.26 MB · 1 Apr 2026Schematic pdf—5.26 MB
- TroubleshootingSchematic · 2.68 MB · 1 Apr 2026Schematic pdf—2.68 MB
- SM-A12 WIFI BT GPS
Schematic section for the Samsung Galaxy A12 (SM-A12) covering the Wi-Fi, Bluetooth and GPS circuitry, provided as a 3.40 MB PDF.
Schematic · 3.40 MB · 31 Mar 2026Schematic pdf—3.40 MB - SM-A12 TOUCHSCREEN
Galaxy A12 (SM-A12) touchscreen circuit diagram in a 3.36 MB PDF. It covers the touch panel connector, its supply voltages and the interface lines toward the processor…
Schematic · 3.36 MB · 31 Mar 2026Schematic pdf—3.36 MB - SM-A12 SIM CARD
SIM card reader section of the Samsung SM-A12 (Galaxy A12) schematic, a 3.36 MB PDF. Technicians consult it for no-SIM or SIM-not-detected faults, tracing the card…
Schematic · 3.36 MB · 31 Mar 2026Schematic pdf—3.36 MB - SM-A12 SD CARD
Schematic extract for the microSD card slot of the Samsung Galaxy A12, model series SM-A12, supplied as a 3.35 MB PDF.
Schematic · 3.35 MB · 31 Mar 2026Schematic pdf—3.35 MB - SM-A12 ON OFF VOL
Power and volume key circuit for the Samsung SM-A12 (Galaxy A12), presented as a 3.39 MB PDF schematic section.
Schematic · 3.39 MB · 31 Mar 2026Schematic pdf—3.39 MB - SM-A12 NETWORK
Network and cellular RF section of the Samsung Galaxy A12 (SM-A12) schematic, 3.40 MB PDF.
Schematic · 3.40 MB · 31 Mar 2026Schematic pdf—3.40 MB