Apple iPhone 7 Plus logic board schematic in a 2.99 MB PDF. It is a key reference for tracing voltage rails, inspecting the audio codec, baseband and charging sections…

Apple iPhone 7 Plus logic board schematic in PDF form, covering board number 820-00229.

Complete schematic diagram for the Apple iPhone 7 in PDF format, about 2.1 MB. It covers the logic board circuits that board-level phone technicians work on, such as…

Schematic PDF for the iPhone 6S, identified in the name by the Apple project code N66. At about 1 MB it is a compact document, so check that it contains the full set of…

Apple iPhone 6 schematic diagram as a 3.96 MB PDF, bearing the name of a Vietnamese repair site in its title.

iPhone 6S Plus schematic supplied as a 6.5 MB PDF, with the name pointing to a Vietnamese mobile repair site as its source.

Full schematic set for the Apple iPhone 6 Plus, delivered as a PDF of about 1.5 MB. Phone repair technicians use these pages to trace supply rails from the PMIC, follow…

Apple iPhone 5S schematic for logic board 820-3292, revision A, a large 72.5 MB PDF. The 820- prefix is Apple's standard numbering for main logic boards, and the letter…

Large PDF schematic labelled 5C, which most likely refers to the Apple iPhone 5C, though the name itself gives no board number or revision.

PCB layout document in PDF for the Apple iPhone 5, showing component placement on the logic board.

Schematic in PDF for the Apple iPhone 5 logic board, about 8.6 MB, with no board revision stated in the name.

Schematic for the Apple iPhone 5, delivered as a larger 9.46 MB PDF that may include more pages or higher-resolution drawings than smaller copies.

Circuit schematic for the Apple iPhone 4S, identified in the name by its internal N94 model code, supplied as a 1.34 MB PDF.

Schematic in PDF form for the Apple iPhone 4, a compact 876 KB document. Logic board schematics like this one let a technician follow power rails from the battery…

Apple iPhone 3GS schematic, provided as an 8.92 MB PDF. The circuit drawings let repair staff follow the supply rails, check charging and backlight sections, and trace…

Circuit diagram for the Apple iPhone 3G in a small 612 KB PDF. A technician can use it to locate the power management stage, battery and dock connector lines, audio…

Electrical schematic for the Motorola XT1543, a Moto G (3rd generation) variant, as a PDF; the title is in Portuguese (esquema elétrico).

Board layout PDF for the Motorola XT1543 (Moto G third generation family), the companion to its electrical schematic; the name spells layout as layoult.

PCB layout document for the Xiaomi Redmi Note 3 smartphone, model code 3Z, delivered as a 3.42 MB PDF.

Block diagram for the Xiaomi Redmi Note 3 handset, model code 3Z, in a 1.75 MB PDF. A block diagram summarises how the main subsystems connect: processor, power…

Service manual for the Xiaomi Redmi Note 3, model code 3Z, a 9.52 MB PDF. Phone service manuals usually cover disassembly steps, exploded views, spare part lists…

Circuit diagram for the Xiaomi Redmi Note 3 smartphone, model code 3Z, a 5.49 MB PDF. Full schematics show every net, component value and connection, so a technician can…

Schematic for the Xiaomi Redmi Note 2, model code 3Y, supplied as a 3.53 MB PDF. The sheets show the power management circuits, processor connections, memory, RF…

Full circuit schematic for the Xiaomi Redmi Note 4, a 16.7 MB PDF that covers the phone's main board.

Component layout diagram for the Xiaomi Redmi Note 4 main board, a 6.97 MB PDF showing where parts sit on the PCB.

Block diagram for the Xiaomi Redmi Note 4, a 3.79 MB PDF giving an overview of the main subsystems and how they link to the processor and power management.

Board layout PDF of 968 KB labelled Note 4, with no brand stated in the name, so the exact phone it belongs to must be confirmed from the drawing itself.

Small block diagram PDF of about 105 KB titled Note 4, without a brand or variant given in the name.

Schematic PDF for a phone called Note 4, 544 KB in size, with no manufacturer or board revision stated in the name.