Troubleshooting guide for the Samsung G900H, presented as a 5.64 MB PDF; Tshoo is shorthand for troubleshooting. No board revision is stated in the name. Such guides usually list fault symptoms like no power, charging failure, missing display or audio problems, with flowcharts, test points and expected readings to check. Technicians pair them with a schematic and multimeter to work through faults systematically. It opens in any PDF reader. Confirm that the handset is the G900H variant before following measurement values or component recommendations.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tamirat_moobile. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.