Samsung Galaxy Tab S 10.5 hard reset using hw keys

How to delete password on Galaxy Tab S T805. Tutorial on how to remove forgotten password or unlock pattern on Samsung Galaxy Tab S T805 Android tablet, hard reset, tablet repair, unlock password, remove unlock pattern on Galaxy Tab S SM-T805, Samsung Galaxy Tab S 10.5 Wifi SM-T805 factory reset,

With the Samsung Galaxy Tab S T805 turned off, press and hold the HOME + VOLUME UP button, (or simply the Vol up) and then briefly press the POWER button for a few seconds, but keep pressing the other buttons until the recovery menu comes up. In recovery menu select wipe data / Factory reset using Volume down button and confirm with power key.
Repeat it on the next screen, highlight Yes -- delete all user data using the Volume down and confirm the deletion using the power key. All data will be lost!
How to remove unlock pattern password on samsung galaxy tab s sm-t805 hard reset tutorial tips & tricks

samsung galaxy tab S - SM-T805 backside
Resetting Samsung Galaxy TabS from the menu settings

When your Galaxy Tab S T805 tablet freezes or has fatal errors, does not response to any input
If your device freezes or hangs, you may need to close programs or reset the device to regain functionality. If your device is still responsive but a
program is frozen, close the program using the task manager. If your device is frozen and unresponsive, press and hold [POWER ] for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Menu mode, select Settings → Backup & reset → Factory data reset → Reset Tablet and confirm using OK

Samsung Galaxy Tab S SM-T805 ODIN mode / firmware update mode

To put your tablet in ODIN mode press Volume down + power (on some models VOL DOWN + home)
Note: If you see  "Downloading" "Do not turn off target" on the screen with an Android shoveling you are in ODIN mode. In this mode you can connect your device to PC / laptop and update the firmware, or download (upload) a custom binary.

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.