And grapheneOS also reboots if it hasn't been unlocked in the past 36 hours. Maybe the amount of time is different by default though, I might have changed it.
FrozenHandle
Haven't tried yet, what exactly can this do? just downloads the pictures? or more? Can it also download the metadata like tags? Does it provide a webinterface to browse and search downloaded galleries? IMO the perfect tool would provide it's own webUI and then transparently proxy E-H using my account, downloading and saving all viewed galleries in it's own database.
It's just the easiest way to do this. Memory training is a very early step in the boot process. Firmware only has the CPU cache available as memory and most hardware in the system isn't initialized yet. Most of this isn't even done by the UEFI firmware itself, but by calling a binary blob provided by the CPU manufacturer, for intel it is called FSP and AMD i believe it is AGESA. I'd have to check, but I believe at the point memory training is running the PCIe bus has not even been brought up and scanned, so video output in this phase would require extensive reengineering of the early boot process from both the CPU manufacturer, firmware vendors and the board manufacturer. PCIe has DMA so making that work without memory might be a challenge. There are three easy to implement solutions though: post codes if your mainboard has a display for them, serial output if the board has a serial port (though this needs another device to read the messages) and the cheapest solution could be a flashing LED on the board labeled memory training in progress.
I am worried about burn-in on computer screens, but at the same time I am just wondering about how others use their phones, my last 4 phones had OLED and I have never had any burn in occur. I bought a used Galaxy S4 mini at some point and when I got it had slight burn-in of some icons, but it didn't get any worse in the two years I was using it. Am I maybe just too old because I use a computer while young people use their phones for 10 hours a day?
In Japanese a thermos bottle is called 魔法瓶/Mahoubin, which literally translated means magic bottle.