Have inherited frozen braveheart

[dukla2000]

Have "inherited" a Braveheart from a roomie. They said they could never get UBTouch to work well, so they replaced it with Mobian.

They eventually gave up on it, so now I'm trying to make a go of it.

The Problem: now it only boots to the splash screen and completely locks up.  The battery has to come out to turn it off.

It also won't boot from any SD card, I've tried about 5 or 6 with Jumpdrive or an OS on them - nothing.

So can someone tell me if there's a way to send this phone into a factory reset when starting it up?

There is a reset button inside the back cover next to the modem - I have never had to use it so cannot be sure when you should push/release nor quite what to expect.

From your description I fear the mainboard is most of the way to meeting its maker: if you can't get any SDcard image to boot then the SDcard reader is presumably dead and who knows what other issues there are. But doubt the reset button will clear them.