Old iPhone 6s disabled

"Old iPhone 6s disabled: My iPhone 6s is disabled because I cannot remember the passcode to get into the phone to unlock it How do I get around that without using iTunes? I have no computer."

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Disabled iPhone:

A. Perform the Following:

If you forgot the passcode on your iPhone, or if a message says that your iPhone is disabled, here's what to do:

1. Go Here: If you Forgot the Passcode on your iPhone, or your iPhone is Disabled - Apple Support
2. Scroll to: "Remove the passcode on iPhone X or later, iPhone SE (2nd generation), iPhone 8, and iPhone 8 Plus"

B. Unlocking Without a Computer:

Having no computer, you'd have to take this to your local Apple Store. You'd set up a Genius Bar Appointment at your local Apple Store. You might need to bring a proof of purchase with you, such as the original sales receipt or original packaging.

iPhone is disabled.

Following this process is the only way out if your iPhone is disabled. The steps given in this link will help you reset the passcode -> If you forgot the passcode for your iPhone, iPad, or iPod touch, or your ...

Regarding your data…

1. If you have an iCloud or iTunes latest backup, then there is nothing to worry about. If not read more...
2. You have synced your data to iCloud, then what you will get back is what you have synced to iCloud and uploaded to iCloud Drive; the information that is synced and stored in iCloud are, Contacts, Calendars, Bookmarks, Mail, Notes, Voice Memos, shared photos, iCloud Photos*, Health data, call history, and files you store in iCloud Drive. (*-If you have turned on iCloud Photos, your content is automatically stored in iCloud.)
3. You have imported your Photos and videos to Mac/PC then they are safely residing there on Mac/PC
4. You have uploaded some of it to Cloud Drives using the Files app (iCloud Drive, Google Drive, OneDrive, DropBox, Flickr, box, AmazonDrive, Adobe Creative Cloud, etc). The data remains there.
5. If you have not backed up or do not have the latest backup, nor imported nor you have synced or uploaded your data to cloud drives prior to the situation that you are in, then I am sorry, all your data is lost.