Bypass passcode on iPhone 5s without SIM card, Siri or iTunes.

you domt iphones use sims

Make Sure your iPhone asking for sim unlock code after insert a non accepted sim card( For Ex. if you are using AT&T sim insert the T-Mobile sim in this)
If yes then follow the steps below:
go to the www.unlockninja.com and select as per your requiremnet
Brand Name:-
Model No or Name:-
Country from The Phone Purchased:-
Network on which The Phone Is Locked:-
Mail ID:-
place order to unlocking confirmation at https://www.unlockninja.com/unlock-apple+phone and wait for the giving time that is 30 min to 2 days
You will confirmed via mail as the phone has been unlocked. Then you only need to follow the steps below:
How to fix sim lock in apple iPhone

How to Unlock the Apple iPhone 6 after getting the confirmation as Unlocked
-Install the last version of iTunes on your computer.
-Make sure your iPhone is updated with the lastest version of iOS.
-Switch ON your iPhone 6 with a SIM Card from a non-compatible network.
-Connect your iPhone 6 to your computer using the Original USB Cable.
-Launch iTunes andwait until iTunes detect your iPhone 6.
-Now disconnect your iPhone 6sand reconnect it after 10 seconds.
-Your iPhone 6 is now Unlocked!
Note:-In the unlikely event that your iPhone 6s is not unlocked, please restore your device following the official guideline from Apple - https://support.apple.com/en-us/HT201252

You need to do a factory/Hard reset to bypass this problem.

You can bypass the password with recovery mode, after this, reset your iPhone, you will get the passcode cleared. To enter and exit recovery mode, ReiBoot is the best and easiest tool, it is free. You can search it on google then you may get the download from official site or download site like CNET.
Huh, i have found the download link for you, just paste it to your broswer: tenorshare.com/products/reiboot.html

There is no known way to bypass an iCloud unlock unless the previous owner provides the correct credentials for the account in question. Performing a factory restore will not remove the lock since the lock requires authentication through Apple's servers. Hypothetically even if you could restore the device to a previous firmware, the lock will remain.

Depends on the IOS thats running. I found a few on youtube but they all limit the functions of the iphone to taking photos and making phone calls. You still won't be able to view the info on the iphone without the passcode or itunes password. Even in DFU mode connected to itunes, you'll be required to enter itunes ID and password.

You will most likely have to restore your iphone through itunes. You can do this but the only draw back will be losing any apps, music and contacts that are not saved or backed up through your itunes account. If you want to restore your iphone which is the only way you can bypass your passcode, you first need to connect your Iphone up to your itunes account through a laptop or PC. After the computer connects up to your phone, first press the power button and count to 3 and keeping the power button pushed in press and hold the home button. Keep both buttons pressed in until the iphone goes into recovery mode and than release both buttons at the same time. It may take 30 seconds. You should be able to restore your iphone and than you will be able to put in a new passcode. If you put it into recovery mode and you change your mind don't worry, just press and hold the power button until the apple symbol appears and than release it and it will take you back to the locked screen.

The only way to activate without a valid sim card its hactivate with redsnow with a computer. regards

I'm afraid you probably have a bad sim. I had a similar problem with a sony ericsson. phone would reject the sim, but a telco rep was able to recover data