Recovering a Schlidbach wallet (Cold Storage) hundreds of BTC

So back in 2010 - 2013 I invested in BitCoin. I have a few old android phones from 2010 or so when BTC was around .25 cents - 100$ USD.

I know I had a Schlidbach BTC wallet at the time, so it was a cold wallet (stored in the data of my phone) so that means no PIN or password, nor seedphrase.

I've tried to recover the BTC for months following countless forums, websites and posts.

My question is:

Does anyone know how I can recover the BTC? I know I need to root it so, I've tried to use unrevoked to root the phone. But it didn't help. It says it need a specific driver once the phone is in H-Boot mode, my PC can't recognize the device.

I know rooting the device (other than unrevoked) will delete all data so its too risky. (Maybe there's a method with android studio? I also assume since the device is so old, windows 11 is probably an issuse)

Any feedback and help would be appreciated.

There's hundreds of BitCoin in the device.

If anyone can give me actual help I'll tip you heavily.

This is my first post on reddit. So forgive me if I'm not in compliance to the rules, etc.

Edit: I don't think people understand that the wallet was the original version of schlidbach BitCoin wallet. It's in COLD storage. That means it is stored in your phones files (basically like having cash in your pocket) Not a HOT storage being online or on a BTC platform. I have screen shots and pics of my other android devices that shows it. Sorry for the possible misunderstanding.