Volume resets to 26 every time unit powers on

The only option is to reset your unit if you forgot the password of your tab. Follow the step by step tuturial

1. Turn off the device.
2. Press and hold the Volume Up key and the Home key, then press and hold the Power key.
3. When the Samsung Galaxy Tab E logo screen displays, release only the Power key
4. When the Android logo displays, release all keys ('Installing system update' will show for about 30 - 60 seconds before showing the Android system recovery menu options).
5. Press the Volume Down key several times key to highlight 'wipe data / factory reset.'
6. Press Power button to select.
7. Press the Volume down key until 'Yes -- delete all user data' is highlighted.
8. Press Power button to select and start the master reset.
9. When the master reset is complete, 'Reboot system now' is highlighted.
10. Press the Power key to restart the device.

to reset the tablet there is two ways in the android settings > security > factory reset or from the bootloader (press and hold the power and volume up (or down or in samsung devices power + home + volume up) and pick factory reset/wipe data and it will take some time resetting once done use the volume keys to select reboot and press the power key

Have you checked for firmware updates? You can try to do a hard reset which can force OS errors to clear up.

First method:

1. In order to switch off the device, hold down the Power button for a short while.
2. In the next step press and hold Volume Up + Power key at the same time for a few seconds.
3. You can release held keys when you see menu on your screen.
4. Then press Volume Down to select option "Factory Reset", and press Power button to confirm.
5. Success! The hard reset has just been performed.

Second method:

1. Turn on the device by using the Power button.
2. Afterwards go to Settings and then to Backup & Reset.
3. Tap Factory Data Reset and select Reset Device.
4. If it's necessary enter the safety code and choose Erase Everything
5. Select OK to confirm the whole operation.
6. Well done! After a while your tablet should be ready to use.

Third method:

1. At the beginning press the Power key to turn off your device.
2. Afterwards press and hold Volume Up + Power simultaneously for about 5 seconds.
3. you can release held keys when you see menu on your screen.
4. Then press Volume Down to select option "Recovery", and press Power button to confirm.
5. Press Volume Down to choose "wipe data/factory reset", and then push the Power button to confirm.
6. Select "Yes--delete all user data". Use Volume Down button to scroll and Power key to select.
7. To restart the tablet, select "reboot system now".
8. Success! The hard reset is done!

A Hard Reset will erase all of your data

This will return the phone to factory settings with NO account.
This will also delete EVERYTHING on the phone.

1. Turn off the device.
2. Press and hold the Volume Up key and the Home key, then press and hold the Power key.
3. When the Samsung logo screen displays, release only the Power key
4. When the Android logo displays, release the Volume Up and the Home key ('Installing system update' will show for about 30 - 60 seconds before showing the Android system recovery menu options).
5. Press the Volume down key several times key to highlight 'wipe data / factory reset.'
6. Press Power key to select.
7. Press the Volume down key until 'Yes -- delete all user data' is highlighted.
8. Press Power hey to select and start the master reset.
9. When the master reset is complete, 'Reboot system now' is highlighted.
10. Press the Power key to restart the device.

To perform an External Manual Reset of your handset to restore to factory settings, read instructions below and then perform.

1. Power off the phone, press and hold volume down button, press power button.
2. Screen will come up with "Fastboot", press Vol down key to cycle through choices until you get"Android Recovery", then press Vol up key
3. Wait for the "triangle ! / Android" screen then go on to step 4
4. Tap on bottom right corner of the screen (may take a few times). a menu will come up
5. Tap on "wipe data/factory reset", and tap OK. Another Confirmation screen will come. Tap Yesand OK
6. After userdata is cleared, the "reboot system now" option will be highlighted by Default. Tap OK.
7. Phone will reboot to initial setup MOTOBLUR screen.

Tip: Once you've reset your device, you can use your existing account to sync your contacts back to the phone.
(Steps on Gingerbread 2.3)
Remove and remount the battery and power up
If the phone still does not boot up to the MOTOBLUR screen, then perform the following Factory Reset instructions:

1. Power off the phone, press and hold the Volume down button and Power buttonsimultaneously while powering up the unit.
2. Screen will come up with "Fastboot" at the top of the screen, press Volume down key to cycle through choices until you get "Android Recovery", then press Volume up key to boot in this mode
3. Wait for the "triangle ! / Android" screen then go on to step 4
4. Press both Volume up and Volume down key simultaneously. A Recovery Menu will come up
5. Tap on Volume down key until "wipe data/factory reset" is highlighted, and tap Power button. Another Confirmation screen will come. Tap on Volume down key until coming to Yes and tapPower button
6. After userdata is cleared, the "reboot system now" option will be highlighted by Default. TapPower button
7. Phone will reboot to initial setup MOTOBLUR screen.

To Perform a Factory Data Reset through settings menu:

1. From the Home screen, press Menu
2. Touch Settings
3. Touch Privacy
4. Touch Factory data reset (Read notes for other options)
5. Touch Reset Phone
6. Touch Erase Everything

Try this

1.hold down the power key for 10 seconds to turn off the unit with nothing hooked to the unit (no ac/no usb/nothing)
2. hold the volume up key (+) and the power, once the screen starts to turn on release the keys.
3. NEXT you should get a robot laying down with a red triangle, push the power key one time. This will get you to the menu screen.
4. from here you chose the reset factory by using the volume down (-). Once you have that line highlighted press the power button.
5. next use the (-) key to get to yes to reset/reboot followed by the power key to chose the option.
6. tablet will come back on and be just like you got it from the store originally.

Try these fixes if, for example, your phone randomly reboots, freezes or does not switch on, if an app crashes, if you have sound problems, or if the screen is blank:

1. Restart your phone.
Press and hold the Power and Volume Down keys simultaneously for 10-15 seconds. Release and the phone will restart. After this operation, you may need to set the date and time on the phone.

If the problem persists, reset and restore your phone as instructed below.

2. Reset and restore your phone.
Important:

• This erases all personal content on your phone and restores the factory settings.
• Before continue with the reset, make sure your phone's battery level is above 50%. To check the remaining battery life, go to Settings > battery saver. If you are not able to check it, or the level is too low, charge your phone for at least 20 minutes.

Reset your phone by using the built-in option in the phone settings. Select Settings > About > Reset your phone.
However, if you cannot access the phone settings, follow the steps below:
a. Disconnect the charger. Press and hold the Power and Volume Down keys simultaneously. Release the pressed keys when phone vibrates and then immediately press and hold the volume down button until the phone displays an exclamation mark (!) on the screen. Release the volume down key.

b. Then press the volume and power keys in the following order: volume up, volume down, power, and volume down.

c. Wait for your phone to reset, during the reset you will see gears rotating on the screen for up to 5 minutes, after which the screen goes blank for ~30 seconds and then your phone will restart.
d. Go through the initial phone setup. Make sure that you have the date and time set correctly on your phone (Settings > date+time).

Let's start with the most common Hard Reset methods and go from there:
Note: the different types of methods are numbered, method 1, method 2, method 3, etc.
1. When the phone is powered off, press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key until a test screen that shows some available options appears, usually takes about 15-20 seconds. When that screen pops up you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights FACTORY RESET then press the Power key to select it.
2. Power the phone off all the way, press and hold the Volume Down key and press than release the Power key, still holding the volume down key for about 10-15 seconds. When you see some additional options pop up on the screen you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights the reset option; it usually says FACTORY RESET, then press the Power key to make the selection.
3. While powered off, press and hold the Home key, while continuing to hold the home key power the device on by pressing the Power key.
Once the Android Recovery screen appears release the Home key, then while on the Android Recovery screen, press the Volume Up and Volume Down keys both at the same time.
If/when you're on the Android System Recovery screen release all the keys, and then use the Volume down key to navigate down to the "wipe date/factory reset" option. Once it's highlighted press the Power key to select it.
Once you see the "Confirm wipe of all user data?" Press the Volume down key to highlight "Yes-delete all user data", then press the Power key to select it.
4. Power the device off, then press and hold the Home key and press and release the Power key (while still holding the Home key).
From the Android Recovery screen, press the Search key.
Tap to select wipe data/factory reset then select Ok (located in the lower left of the screen). Note: if screen is not responsive use the Volume keys to scroll and the Camera key to select.
Select Yes - delete all user data, and then select OK (again lower left).
Select "reboot system now" and press OK.
5. This is becoming a common hard reset method and can be used to factory reset Samsung's more recent Galaxy smartphones such as the Samsung Galaxy S III, the Samsung Galaxy S4, the S5, the Samsung Galaxy Note the Note II and Note 3, etc.
With the device powered off press and hold the Volume Up key the Home key and the Power key all at the same time.
When the phone vibrates (or you see the GALAXY Logo) release the Power key but continue to hold the Volume Up and Home key.
Continue holding the Volume up and Home key until the "Android system recovery" screen appears.
Use the Volume buttons to scroll to and highlight the "wipe data/factory reset" option, and then use the Power key to make the selection.
Once the factory reset is finished you may use the Volume and Power keys to highlight and select the "Reboot system now" option and the hard reset will be complete and your cell phone will be nice and squeaky clean.
6. Here is an alternate reset for a Motorola Atrix still running on the 2.2 Android OS...
While the phones power is off, press and hold the Volume down button and press and release the power button (note: if it doesn't work after all the steps listed try holding down the power button along with the volume down button in this first step).
A "Fastboot" screen should pop up, press the Volume down key to cycle through the choices until you get to "Android Recovery", then press the Volume up key.
Wait for the "triangle!/Android". Once it pops up you'll need to tap on the bottom right corner of the screen (note: it may take a few attempts). A menu should pop up.
Tap on "wipe data/factory reset", and then tap OK. Another confirmation screen will appear. Tap Yes and then OK.
After the data is cleared the "reboot system now" option should appear and is highlighted by Default. Tap OK.
Note: this type of reset is common on the 2.2 (Froyo) before the tech geeks wised up and removed the need to use the touch screen.
7. This reset is for the same phone, the Motorola Atrix, but one that's running on the 2.3 OS.
Power off the phone, press and hold the Volume down button and Power button simultaneously while powering on the unit.
The "Fastboot" screen should pop up. When it does press the Volume down key to cycle through the choices until you get to "Android Recovery", and then press the Volume up key to boot in this mode.
Wait for the "triangle!/Android" screen to pop up. Once it does press both the Volume up and Volume down keys simultaneously. A Recovery Menu should pop up.
Tap on the Volume down key until "wipe data/factory reset" is highlighted, and then tap the Power button. Another Confirmation screen will come up. Tap on the Volume down key until it highlights "Yes" and then tap the Power button to make the selection.
After it's done make sure "reboot system now" is highlighted and then tap the Power button.
In this method you don't have to use the touch screen any more. So let's say your touch screen isn't responding therefore you can't navigate the phone or go into your settings and do a regular factory data reset. Well now on the 2.3 there is hope. Just power off the phone and perform these steps and the reset should go through.
8. Here is a hard reset for a Sharp Android Smartphone.
While the device is off, hold the Sym button (it's located on the keyboard) and the Power button simultaneously.
Once the Android boot screen appears highlight the Wipe data/factory reset option by using the volume buttons. Then use the Return key (on the keyboard) to actually make the selection.
Scroll down to Yes - delete all user data and then press the Power key to confirm.
Once it is done select reboot system now and press the Power key to confirm and reboot your handset.

try to restore it


Let's start with the most common Hard Reset methods and go from there:
Note: the different types of methods are numbered, method 1, method 2, method 3, etc.
1. When the phone is powered off, press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key until a test screen that shows some available options appears, usually takes about 15-20 seconds. When that screen pops up you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights FACTORY RESET then press the Power key to select it.
2. Power the phone off all the way, press and hold the Volume Down key and press than release the Power key, still holding the volume down key for about 10-15 seconds. When you see some additional options pop up on the screen you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights the reset option; it usually says FACTORY RESET, then press the Power key to make the selection.
3. While powered off, press and hold the Home key, while continuing to hold the home key power the device on by pressing the Power key.
Once the Android Recovery screen appears release the Home key, then while on the Android Recovery screen, press the Volume Up and Volume Down keys both at the same time.
If/when you're on the Android System Recovery screen release all the keys, and then use the Volume down key to navigate down to the "wipe date/factory reset" option. Once it's highlighted press the Power key to select it.
Once you see the "Confirm wipe of all user data?" Press the Volume down key to highlight "Yes-delete all user data", then press the Power key to select it.
4. Power the device off, then press and hold the Home key and press and release the Power key (while still holding the Home key).
From the Android Recovery screen, press the Search key.
Tap to select wipe data/factory reset then select Ok (located in the lower left of the screen). Note: if screen is not responsive use the Volume keys to scroll and the Camera key to select.
Select Yes - delete all user data, and then select OK (again lower left).
Select "reboot system now" and press OK.
5. This is becoming a common hard reset method and can be used to factory reset Samsung's more recent Galaxy smartphones such as the Samsung Galaxy S III, the Samsung Galaxy S4, the S5, the Samsung Galaxy Note the Note II and Note 3, etc.
With the device powered off press and hold the Volume Up key the Home key and the Power key all at the same time.
When the phone vibrates (or you see the GALAXY Logo) release the Power key but continue to hold the Volume Up and Home key.
Continue holding the Volume up and Home key until the "Android system recovery" screen appears.
Use the Volume buttons to scroll to and highlight the "wipe data/factory reset" option, and then use the Power key to make the selection.
Once the factory reset is finished you may use the Volume and Power keys to highlight and select the "Reboot system now" option and the hard reset will be complete and your cell phone will be nice and squeaky clean.
6. Here is an alternate reset for a Motorola Atrix still running on the 2.2 Android OS...
While the phones power is off, press and hold the Volume down button and press and release the power button (note: if it doesn't work after all the steps listed try holding down the power button along with the volume down button in this first step).
A "Fastboot" screen should pop up, press the Volume down key to cycle through the choices until you get to "Android Recovery", then press the Volume up key.
Wait for the "triangle!/Android". Once it pops up you'll need to tap on the bottom right corner of the screen (note: it may take a few attempts). A menu should pop up.
Tap on "wipe data/factory reset", and then tap OK. Another confirmation screen will appear. Tap Yes and then OK.
After the data is cleared the "reboot system now" option should appear and is highlighted by Default. Tap OK.
Note: this type of reset is common on the 2.2 (Froyo) before the tech geeks wised up and removed the need to use the touch screen.
7. This reset is for the same phone, the Motorola Atrix, but one that's running on the 2.3 OS.
Power off the phone, press and hold the Volume down button and Power button simultaneously while powering on the unit.
The "Fastboot" screen should pop up. When it does press the Volume down key to cycle through the choices until you get to "Android Recovery", and then press the Volume up key to boot in this mode.
Wait for the "triangle!/Android" screen to pop up. Once it does press both the Volume up and Volume down keys simultaneously. A Recovery Menu should pop up.
Tap on the Volume down key until "wipe data/factory reset" is highlighted, and then tap the Power button. Another Confirmation screen will come up. Tap on the Volume down key until it highlights "Yes" and then tap the Power button to make the selection.
After it's done make sure "reboot system now" is highlighted and then tap the Power button.
In this method you don't have to use the touch screen any more. So let's say your touch screen isn't responding therefore you can't navigate the phone or go into your settings and do a regular factory data reset. Well now on the 2.3 there is hope. Just power off the phone and perform these steps and the reset should go through.
8. Here is a hard reset for a Sharp Android Smartphone.
While the device is off, hold the Sym button (it's located on the keyboard) and the Power button simultaneously.
Once the Android boot screen appears highlight the Wipe data/factory reset option by using the volume buttons. Then use the Return key (on the keyboard) to actually make the selection.
Scroll down to Yes - delete all user data and then press the Power key to confirm.
Once it is done select reboot system now and press the Power key to confirm and reboot your handset.


this one note all files will be deleted

Lamp Time Reset Procedure:
Be sure to reset the Lamp time to "0" after replacing the new
Lamp.
1. Plug in the AC Cord, and turn on the power by pressing the
POWER button.
2. Press and hold the VOLUME DOWN button on the unit and
the SPLIT key on the remote together for over 5 seconds
in power on condition.
When the reset is finished, the display will indicate that the lamp hrs have been reset to 0 and the LAMP LED goes out.