I know this phone is old. But there are certain Xposed mods that I want to use but I can't because it soft bricks it. Also I want to install lineage os 16. My point is that every Android device should be able to be unlocked. I have bought 4 s5's hoping I would get a 15, but they were all 11. I can't afford a newer phone. That's why I want a bootloader unlock for the s5 with the Toshiba chip.
Well, unfortunately this phone, the max of what you can get is root. Practically this chip is not unlockable for custom ROMs and that, and practically the Verizon 15 chip version ROM catalog is not so big even. You can try considering buying other budget phones if thats stopping you from upgrading an s5, they are plenty of options such as Xiaomi, Huawei or even some other brands, you can even stop buying new ones and buy used ones with good usable conditions very cheap on Facebook Marketplace or sell/buy phones groups. Just take this as an advice from a dude who starts with a S4 as main phone .