dammit, so what can i do now ?It depends if you did the upgrade with efuse protection. If your efuses are burnt then, afaik, you can't roll back.
Boot into hekate and check your fuse count under system info.
If you have 6 burnt fuses, then you can safely downgrade back to 5.1.0 with your backup.
If you have 7 burnt fuses, then you cannot safely downgrade back to 5.1.0. (At least not without always disabling fuse checks)
By always booting with hekate or any other bootloader that disables them.How do you always disable fuse checks?
Basically, you can downgrade, but you'll always need to boot using a payload to skip the fuse checks.
Does that mean that i can restore my nand then update again ?By always booting with hekate or any other bootloader that disables them.
Does that mean that i can restore my nand then update again ?
Boot into hekate and check your fuse count under system info.
If you have 6 burnt fuses, then you can safely downgrade back to 5.1.0 with your backup.
If you have 7 burnt fuses, then you cannot safely downgrade back to 5.1.0. (At least not without always disabling fuse checks)
Checked i have 7 burnt fusesCheck how many burnt fuses you have before trying to downgrade
Unless you want a brick
You can't downgrade. Don't listen to anyone who says otherwiseChecked i have 7 burnt fuses
Then you are no longer able to boot into your 5.1.0 backup as though it were stock.Checked i have 7 burnt fuses
Then you are no longer able to boot into your 5.1.0 backup as though it were stock.
If you decide to restore your backup anyway (I advise against this), you must always boot through hekate or another bootloader that disables fuse-checks.
Otherwise your system will panic at boot and turn off whenever you aren't disabling fuse-checks.
Yes, it's the reason why we can safely update to higher firms and then downgrade later.Really? Hekate can disable fuse checks?
Yes, it's the reason why we can safely update to higher firms and then downgrade later.
We upgrade with ChoiDujour(NX), and then when we boot with hekate it disables writing/reading of the fuses to let use boot properly, without locking us to the latest firm.
I'm pretty sure it disables both checks and burning, but I'm not in a position to test it at the moment.AFAIK Hekate can boot higher FW without burn fuses, but can't boot lower FW if you have more fuses burned than it requires. (Sorry if I'm wrong )
AFAIK Hekate can boot higher FW without burn fuses, but can't boot lower FW if you have more fuses burned than it requires. (Sorry if I'm wrong )
In my testing of ReiNX, I downgraded my console with 5 burnt fuses down to firmware 3.0.2 without any issues so yes, bypassing the fuse count goes both ways: both for counts above and below your current count.I'm pretty sure it disables both checks and burning, but I'm not in a position to test it at the moment.
Though I think it's fair to say even if it does support booting lower firms than your fuse count would allow, it's probably best not to.