Tangent Quattro not booting

[jisotalo]

This is not probably related to this patching process, as the radio worked fine for many months.

However, now suddenly my radio won't boot at all. It just shows black squares/boxes after plugging the powers.

I tried to post to http://iradioforum.net but their spam blocker blocks also all my messages :D So if anyone has idea what could cause this I'm happy to hear!

[matpanel]

Can you measure the output of your power supply? Maybe it has gone faulty.

[jisotalo]

Thanks, I'll check that out in a few days!

[modestos]

It's probably bricked. You need to patch again using the jtag method.