Short Spanish PDF on schematic nomenclature, 21.2 KB, not tied to any device. It likely explains the designator prefixes and symbols used in diagrams, such as R for…

Spanish PDF titled Microelectrónica, 4.14 MB, with no device, brand or board named. It is likely training or course material covering microelectronics topics such as…

Spanish-language training document on intermediate microelectronics for mobile phones, filed under schematics but by its title a course text rather than a circuit…

Portuguese introductory study material on digital electronics, the first part of a course series judging by the numbering in the name.

Manual of digital electronics written in Spanish, a general reference rather than a schematic for any particular equipment.

Portuguese list of common defects and possible solutions for reported problems, written as a troubleshooting guide.

Short Spanish document on Kirchhoff's laws, the current law for nodes and the voltage law for closed loops.

Spanish basic electronics guide, a general introduction rather than a schematic for any specific equipment. The name gives no device or board number.

Spanish electronics learning series El mundo de la electronica, issue 21, in a PDF of about 1 MB.

Spanish document about the diode, a 373 KB PDF of component theory rather than a schematic for a specific device. The name gives no product or board number.

Spanish-language course document on Android devices, supplied as a 424 KB PDF and filed under schematics although the title points to training material rather than a…

Portuguese reference titled charging connectors and devices, a 1.18 MB PDF that appears to list charging ports and the phones they fit.

Short electronics course in Spanish, a 1.26 MB PDF catalogued with schematics but evidently a teaching document rather than a circuit for a particular device.

Compatibility chart in Portuguese for charging connectors, a compact 183 KB PDF listing ports that can be swapped between handsets.

Spanish reference on interchangeable integrated circuits for mobile phones, a 273 KB PDF.

Charging pin compatibility guide in Spanish, a 2.03 MB PDF that presumably groups phones sharing the same charge connector or flex.

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…

Spanish tutorial on recognising components in a schematic, a 310 KB PDF intended as training rather than a diagram for a specific device.

Backlight circuit document in Spanish, a 741 KB PDF that likely explains or diagrams a display backlight driver stage.

Spanish manual on unlocking, releasing and flashing mobile phones, a 3.27 MB PDF. No brand, model or tool is named in the title, so expect general procedures covering…

Spanish document about coils, the file name meaning inductors, a 1.17 MB PDF. No device or board is mentioned, so it is general material on how inductors work, how they…

Spanish reference on SMD coils or inductors, a 273 KB PDF covering surface-mount types found on modern boards. The name gives no device.

Spanish document on the logic or control area of a mobile phone board, a 252 KB PDF. Typical phone repair courses divide the board into sections, and the logic area…

Spanish notes on basic electronics, a 591 KB PDF. The name mentions no device, board or brand, so it serves as study material on fundamentals such as electrical…

Spanish repair training document titled learning to repair, a 4.09 MB PDF and a different file from the similarly named from-scratch course.

Learn Arduino, a Spanish guide in a 5.69 MB PDF focused on the Arduino microcontroller platform rather than repair of a specific device.

Portuguese-language handout on basic electronics, filed under schematics although the name points to a study booklet rather than a circuit diagram of a specific device.

Spanish-language guide on analysing logic boards that are in short circuit, credited to Daniel Escalante in the file name.

Portuguese fault-analysis document for the J700, which by naming convention is most likely a Samsung Galaxy J7 handset, although no brand is stated.

Short Spanish reference sheet explaining the acronyms and letter codes found on electronic diagrams, saved as a 27.7 KB PDF.

Training PDF about SMD surface-mount components, numbered 31 in what looks like a course series, about 998 KB in size.

Samsung SM-G532F schematic section, labelled as part 07 in the file name, delivered as an 847 KB PDF.

Spanish-language PDF offering ten tips for a technician who is developing their skills, about 152 KB.

Chapter six of a Spanish mobile-phone repair course covering disassembly and identification of parts, with the number 720 in the title, which may refer to a handset…

Fourth chapter of a Spanish cellular-phone course, dealing with cloning or unlocking, saved as an 863 KB PDF.

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

Second chapter of a Spanish course introducing cellular phones and their technology, saved as a 503 KB PDF.

PDF document of 1.29 MB whose numeric file name gives no hint of the device, board number or content, although it is catalogued as a schematic.

First chapter of a Spanish course on cellular telephony, a 1.95 MB PDF filed under schematics but evidently a training lesson. It names no device or board number.

Guide to the charging process of the Samsung Galaxy A10, provided as a 1.05 MB PDF. It likely illustrates the path from the USB connector through the charging IC and…