Circuit schematic for the LTE version of the Xiaomi Mi 4, compressed as a 1.34 MB ZIP file.

Service schematics for the Samsung SGH-C160 feature phone, packed into a small 278 KB RAR archive marked as a copy.

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

Schematic for the iPhone X, 2.48 MB PDF, with a contributor handle and a misspelled word in the name.

Nokia 6020 schematics, second file of the set as the trailing 2 in the name suggests, in a 952 KB PDF. No board revision is listed.

Network and RF section schematic for the Samsung SM-A23, a 2.78 MB PDF from a series of per-function sheets.

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…

Full schematic set for the Nokia E60 business handset, packaged as a 4.00 MB PDF. It is the larger of the E60 diagram files and likely contains the main sheets for the…

Nokia N71 schematic diagrams in PDF form, 2.01 MB. The N71 is a clamshell, so besides the main board power and baseband sections the drawings are handy for following…

Apple iPhone SE schematic, provided as a 3.91 MB PDF. The name does not specify which generation of SE it covers, so check the board and model number against the…

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…

Sectioned schematic in PDF dealing with the SIM card reader, from a series of pages of roughly 4.77 MB with no model named in the file.

Schematic for the Xiaomi Poco M3 smartphone, with J19S MB marking the main board, distributed as a ZIP of about 3.16 MB.

Schematic set in PDF form for the Samsung SM-G615F smartphone, packed in a RAR archive of about 7.55 MB.

Schematic for the Apple iPhone 3GS, provided as a 6.54 MB RAR. No board or schematic number is given in the name, so check the document and compare it with the markings…

Apple iPhone 3GS schematic in PDF form, roughly 8.92 MB. Board-level diagrams like this let a technician follow power rails from the PMU, trace signal lines between the…

Apple iPhone 4S schematic in a 1.34 MB PDF. The name gives no board number or revision, so compare the diagram with the logic board you are servicing.

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…

Schematic set for the Nokia N8-00, product code RM-596, marked as version 2 in the name.

Nokia 5510 schematic, the second document in a set judging by the trailing 2 in the name, in a 714 KB PDF. No revision is mentioned.

Apple iPhone 4S schematic, 1.34 MB, whose name includes an Arabic phrase meaning iPhone map, a common term for a circuit diagram.

Chapter three of a Spanish mobile-phone training series, explaining how a phone works, as a 1.75 MB PDF.

Schematic in PDF form for a device labelled Y9 2019 with the codename jackman, credited to Anibal Garcia in the name.

Schematic PDF for the Apple iPhone 3GS, logic board 820-2762, in a 789 KB RAR. 820-xxxx is Apple's own numbering for logic boards, which lets you confirm the exact board…

Schematic set for the Apple iPhone 3GS logic board, Apple board number 820-2580, packed in a 412 KB RAR archive.

Apple iPhone 6 Plus schematic or repair document in PDF format, 1.49 MB. The name does not give a board number or a page count, so open it to see whether it holds full…

Schematic for the Apple iPhone 3GS, packaged as a 787 KB PDF. The file name does not state a board number or revision, so verify the title block against the board you…

Schematic drawings for the Nokia 2600 phone, a 1.03 MB PDF whose name ends in 1, hinting that it may be the first file of a split set.

Portuguese guide on fixing iPhone error 4013, converted to a 310 KB PDF. Error 4013 typically appears in iTunes or Finder during restore and is commonly linked to…

Schematic diagrams in PDF form for the Motorola Moto E6 Plus, model XT2025-1, delivered as a 1.96 MB RAR archive.

Schematic section for the LG G5 smartphone covering the network or RF part of the circuit, according to its title.

Schematic for the Apple iPhone 7 Plus, shared as a PDF of about 10 MB and credited to a Vietnamese repair source.

iPhone 3GS schematic in a 2.20 MB RAR archive. The name gives no logic board number or revision, so compare the drawings against the board in hand.

Schematic diagrams for the Samsung SM-G350, the Galaxy Core Plus model, stored as a 4.26 MB RAR archive.

Schematics version 1.0 covering Nokia product codes RH-70 and RH-64, packed in a 1.22 MB RAR archive.

PDF schematic for the Huawei U9510E smartphone, which repair shops use for board-level work. The name gives the model only, with no PCB revision.

Schematic set for the Nokia 2690 mobile phone, provided as a 406 KB PDF. Service schematics like this show the baseband, power management, RF, charging, SIM, display and…

Nokia 2100 schematic, marked as version 2.0 in its title, delivered as a 1.49 MB PDF. The drawings help when diagnosing a phone that will not power on, does not charge…

Full schematic for the Samsung SM-A307F, the Galaxy A30s, as a PDF of about 13.8 MB described in Spanish as complete.

Apple iPhone XR schematic in PDF form, the second part or alternate copy judging by the suffix in the name, at 48.8 MB.