BIOS image in .rom format, 2 MB, named NP-NC111-A01TR, which follows Samsung's model naming and likely corresponds to the NC111 netbook, A01TR variant.

Original firmware read from an unspecified HP device; the name says only hp org, giving no model or board number.

Small 120 KB PDF that, judging by its Persian title, is a saved Wikipedia encyclopedia article about inverters rather than a board-level schematic.

Boardview document for a board identified as MB2110 revision 2.0, supplied in PDF form inside a RAR of about 1.26 MB.

Short Spanish PDF course on the oscilloscope, 375 KB, with no device or model associated. It is study material, not a circuit diagram.

Schematic in PDF for the Samsung i8200, named only by its model number with no further details given.

Troubleshooting guide in PDF for the Samsung G900H, a Galaxy S5 variant, with Tshoo being Samsung's abbreviation for troubleshooting.

Firmware package for the TP-Link Archer AX10 AX1500 Wi-Fi router, hardware version 1.20, EU region, archived as RAR.

Schematic PDF of 2.00 MB named X65 with the code name Sydney; no brand or board number appears in the name, so the device it belongs to has to be verified from the title…

Schematic titled only LF14M, with no brand, board number or revision in the name. This 1.57 MB PDF needs checking against its title block to confirm which device it…

Firmware archive whose name gives only a numeric prefix and the tokens ITZR and H55KAL2 with an s1 suffix, so the exact device is unclear; H55 may hint at an Intel H55…

Small 684 KB ZIP archive for the Lenovo A5500-H tablet. The name gives only the model, so whether it holds schematics, a component layout or another service document…

Spanish tutorial PDF on how to read a schematic, credited to ABCtecnologyspro. It is a training document rather than a diagram for a specific device, and it likely…

Samsung Galaxy S8 schematic collection covering the SM-G950D and SM-D950J variants, compressed into a 7.44 MB ZIP.

Archive for the Samsung Galaxy J4 Core, model code SM-J410F/G, provided as a 9.00 MB ZIP.

ZIP archive of 8.20 MB carrying only the Samsung model code SM-G8870. Nothing in the name says what is inside, so extract it to see whether it contains schematics, PCB…

Schematic archive for the BlackBerry 9981, the Porsche Design handset, sized 2.66 MB in RAR format. Nothing beyond the model number is given in the name.

Service schematics for the Samsung SM-A217F, the Galaxy A21s, in a 9.69 MB RAR. Samsung service diagrams of this kind usually show the circuit sheets for power…

Firmware archive named ME ICON 44, delivered as a 627 KB RAR file. Apart from the ICON 44 model reference and the ME token, which may mean Management Engine or a product…

RAR archive labelled with board number 10211-1, roughly 112 KB, without a device or brand in the name.

Service manual for the Alcatel One Touch OT-890D phone, provided as a 2.18 MB RAR archive; the name does not state the service level.

Issue 17 of El mundo de la electronica, a Spanish electronics course or magazine series supplied as a 1.31 MB PDF.

Samsung SM-G355H schematic PDF of 3.21 MB; the HrM suffix in the name is not explained and likely marks a document section. The SM-G355H is the Galaxy Core 2 smartphone.

Schematic PDF whose name is only KL2D, probably a project or board code. The name gives no brand, board number or revision, so open the 979 KB document and read the…

Datasheet for the AON6794 from Alpha and Omega Semiconductor, a 243 KB PDF. AON-series devices are power MOSFETs in DFN 5x6 packages, used as switching elements in…

Alpha and Omega Semiconductor datasheet for the AON6314, a 359 KB PDF. AON63xx devices are power MOSFETs in DFN packages widely used in the high-side and low-side…

RAR archive for the Quanta RM5 motherboard at revision D3A, no device brand stated in the name.

RAR archive of 1.71 MB containing material for the Quanta G75C motherboard at revision 1A.

Archive titled TERESA20, 1.61 MB, where Teresa appears to be an internal project or board code name and 20 likely a revision, although the name does not spell out the…

Odin root package for model A805F, 18.5 MB tar, built for binary revision U2 with a trailing 9 that likely corresponds to the Android version.

Odin-ready tar archive of 15.9 MB carrying root for the A605F, binary revision U4, and a closing 9 that most likely refers to the Android version.

ZIP archive of 8.67 MB whose name points to an electrical schematic (E.E, Portuguese abbreviation for esquema elétrico) for the Samsung Galaxy J4, model J400.

Archive named after Easydraw with a repair-site tag, 15.6 MB in ZIP format. The name points to a drawing or viewing utility rather than device documentation, and no…

RAR archive of 917 KB named 2MC61SFE-13. The name is cryptic: it gives no brand, document type or device, and the trailing 13 may be a version or revision index.

Raw firmware image for a DG31PR motherboard, part of Intel's desktop board range, 512 KB in size. The name carries no version or revision details.

Service manual archive, judging by the SM suffix, for the Samsung GT-I9200, the Galaxy Mega 6.3.

Short PDF of 161 KB with the numeric name 317091 and a browser copy marker, offering no information about the device, brand or board.

Firmware for the ZyXEL VMG5301 VDSL gateway, version 200ABIW0b6 as given in the name, compressed into a 9.40 MB RAR.

Large PDF of 38.6 MB named only by a date, 18 May 2020, and the abbreviation BOM, meaning bill of materials; no device, brand or board number is stated.

Large 356 MB RAR archive named DDBTVVKV40FH18X, a code that does not clearly identify the device.