Some help needed

[u/hoopsong]

Hello reddittors.

It’s been some years since I took out my PSP. I spent quite some time to troubleshoot but can’t seem to find the answers to do so hoping someone can help.

So here’s some background. I’m trying to update myself to ARK-5.

Was running 5.50 Gen-D3. Tried to update to OFW 6.61 with this process from PSPunk & it got stuck in a 99% to 84% loop. Force shutdown at 99% as some past threads said. Devices boots up fine and shows in System as 6.61. & I know it’s not the full installation after attempting to install ARK-5, the device just does not automatically restart after running the “Game”

So I retried installation with Chronoswitch to 6.61, same 99%-84% loop, and force power off at 99%. ARK-5 does not install in this scenario. Attempted to install ARK-4 same outcome.

Thereafter I used chronoswitch to 6.60, thinking 6.61 file is corrupted. Stuck in same loop 99%-84%. System setting show 6.60, but unable to install ARK-5 or ARK-4.

I do read that OFW does check on hardware last 10% of the update, I could not recall if 10+ years ago my UMD was working fine. But I attached a video for someone to help.

So now that you’ve read until here, any idea how I should proceed? Or if there’s any way to revert to 5.50 GEN D3. Or I have to fix the UMD 🤔

Thanks in advance!