iPhone 6s is disabled and tried all the solutions but it’s not working

Carefully follow these instructions:

If your device has iOS 15.2 or later installed, you can reset it without a computer; check out this link→How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support. Otherwise you will need a computer:

See this Apple support link→If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

Or watch this companion video ⬇️

After restoring the phone using one of the methods above you can restore your most recent backup.

Without know what “all the solutions” that you tried are it would be frustrating to reply “try this” and be told “I tried that” over and over. So please tell us what troubleshooting you have already done.