hm yeah the versions look wrong, so the decryption probably failed. On the other hand the versions look close together, so maybe not? Very strange.
That is a standard retail console? What board revision does it have?
you should not write the backup back. Just flash the boot1.raw backed up from another console and then it should prompt you to update the bboot1 version in the seeprom. If it fais at that I have to see if I can decrypt the seeprom and looks at...
Yes some 4GB sdcard that was even 10 years ago old and it looked like it just was the cheapest at the time.... Everything has a limited life span, I also have a stack of dead HDDs. I had a higher class 32GB Samsung card in my phone for years and...
There are two copies of the the boot1 on the SD. Did it reject to write the seeprom? Then you should be good.
What is the attached seeprom? A freshly dumped one?
Was it a refurbished console or something like that or really brand new? If it was new, then it is likely the firmware is to old for UDPIH and you would need to defuse, which also requires the pico but also some soldering
Since the seeprom key seems to be the same on all consoles, you could try to use another consoles otp.bin while flashing the latest boot1.raw (dumped from another console) and update the version in the seeprom with that.
After that remove the...
You would need to use UDPIH. You might not get an output on the screen, but if the led turns purple, it is working and you can navigate blindly to dump the logs.
https://gbatemp.net/threads/udpih-usb-host-stack-exploit-recovery-menu.613369/
Yes, there is a good chance, this is bad eMMC. You can dump the logs, so we can have a look to confirm. If it is brand new, the firmware might not be new enough for UDPIH, but you will see.
Also what voultar showed wouldn't help, since this is...
Just managed to install ISFShax on my spare Wii U in preparation for SDUSB setup and instructions were pretty straightforward, haven't run into any issue. Will continue with the SDUSB installation tomorrow and report back if everything goes well...