info to troubleshoot at component level, like schematic, test points

@peteyoung those are copyrighted and we, this forum, would definitely get in trouble by distributing those. I can tell you that they are available but may require some good searching. you always want to use the proper model number when you search for those. I tis important that you realize what model you are looking for and have to identify this ahead of time. In your case I assume you are looking a manual for a Samsung Galaxy S5 which would be one of these Versions: G900F (Europe), G900I (Asia, Australia), G900M (Vodafone), G900A (AT&T), G900T (T-Mobile), G900W8 (Canada), G900K/G900L/G900S (Korea).