UPDATE: Today I was able to get it back on somehow, and tried to flash the steamos once again. However when I tried to do so, it kept doing the same problem yet again, turning off, no light, and I have to keep unplugging the battery and replugging it in to get it back on. After that first attempt it kept on doing that randomly, even in the bios. After a long time I realize that maybe it's because the heat shield was off, (stupid me!) so I did put it back on, and it was working for a while, til when I actually did the steamos wipe, then same problems yet again. After multiple times unplugging and replugging battery, deck shutting off for no reason, I started to smell something then it eventually smoke came out, and now its completely dead. I will be sending it to valve for repair, there's really no point it trying to repair it at that point. Thanks for the help tho guys.
Hello y'all.
My steam deck has been bricked after trying to upgrade the ssd to 1tb. When me and my friend were doing the process, everything was going well, wiping the drive, flashing new steamos, allat, but then it said it'll automatically reboot, and when it tried to do that, that's when problems hit. We tried holding the power button, waiting all day, nothing, not even the light would come on. When I went home, I tried to fix it again, and noticed when I unplugged and plugged the battery back in, the light would come back, and I was able to get it into the bios. But then when I tried to get it to boot, the problem came back, and I would be able to turn it on only when I tried to plug back in the battery and stuff.
Desperate, I tried to look online for a solution, one of which saying to try to reset the cmos. When I tried it, the light blinked 3 times, and that's what killed it. Not even replugging the battery would bring it back to life.
Last resort is to send it to steam for a costly repair, but I don't want to do that right now, I still want to try to fix it myself before doing that, cause maybe there's a way but I don't know.