Spanish PDF course topic about diagnosing and fixing software faults on mobile devices, 541 KB in size and seemingly identical to topic 7 in the same series.

Spanish course chapter numbered topic 7, dealing with diagnosis and repair of software faults in mobile phones; the 541 KB PDF matches the unnumbered copy of the same…

Topic 2 of a Spanish smartphone repair course, covering basic electronics, as an 817 KB PDF that appears to duplicate the unnumbered copy. No device or board is named.

Opening topic 1 of a Spanish course on mobile telephony fundamentals, a 343 KB PDF. No phone model or brand appears in the name.

Spanish training PDF on identifying the parts of a smartphone, describing the main components and modules found inside a typical handset.