How to use power key? - Texas Instruments TI-30XA Calculator

Pattern code can be removed through Hard Resting the phone. Below are some most common ways to hard reset an android phone.

1. Make sure 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.

Perform a hardware factory reset - Samsung Galaxy Tab 2 10.1

1. A master reset will return the tablet to the default factory settings and erase all personal information on the tablet. All important information should be backed up before proceeding.
   With the tablet turned off, press and hold the Volume Up key.
   Note: To turn the tablet off completely, press the power key, tap Power off,and tap OK.
2. While holding down the Volume Up key, press and hold the Power key.
3. Hold both the Volume Up key and the Power key until the Samsung logo appears.
   Release the Power key when the Samsung logo appears.
   When the Samsung Galaxy Tab 2 10.1 logo appears, release the Volume Up key.
4. Press the Volume Down key to scroll to wipe data/factory reset.
5. With wipe data/factory reset highlighted, press the Power button.
6. Press the Volume Down key to scroll to Yes --delete all user data and press the Power key.
7. Once the wipe is complete, press the Power key to select reboot system now.
8. The master reset is now complete. The tablet will restart.

Hi Sai,

Depends on the model and make. Typically, there are steps to reset it completely. Please try the following steps and see if they work.

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.

Hi Jessica

Let's try something, please follow these steps and see if they will help reset the phone. (have you tried removing the battery first to see if it will restore the screen)?

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.

1. Turn the phone off.
   

2. Press and hold the following keys at the same time: Volume Down Key + Power/Lock Key on the back of the phone.
   

3. Release the Power/Lock Key only when the LG logo is displayed, then immediately press and hold the Power/Lock Key again.
   

4. Release all keys when the Factory hard reset screen is displayed.
   

5. Press the Power/Lock Key to continue or either of the Volume Keys to cancel.
   

6. Press the Power/Lock Key once more to confirm or either of the Volume Keys to cancel
   

1. Turn the power off
2. Press and hold the following keys at the same time: Volume Down Key + Home Key + Power/Lock Key .
3. Release all of the keys when you see the screen message "Permanently Erase User Data & Reset Settings? Press Power key to confirm and any other key to cancel." The first message will be displayed in 10 to 12 seconds.
4. Press the Power/Lock Key to confirm (or press any other key to cancel). When you press the Power/Lock Key to confirm, a pop- up appears asking "Are you sure you want to continue with erase?".
5. Press the Power/Lock Key and your phone will be restored to the factory settings. To cancel, press any other key.

Leave your phone for at least a minute while the hard reset is carried out. Your phone will reboot automatically.

You would have to perform a factory reset to get back into the device. This removes all data on the tablet so if you can find the password that would be best.
To perform factory reset please follow those steps:
1. Power the device off.
2. Press and hold the Volume Up key and the Power key simultaneously to power on the device.
3. Release the Volume Up key and the Power key when the Samsung logo displays on the screen.
4. Use the Volume keys to select Recovery Console then press the Power key.
5. From the Recovery Console screen, use the Volume keys to select Wipe Data/Factory Reset then press the Power key.
6. Use the Volume keys to select Yes then press the Power key.
7. Once the Wipe Data / Factory Reset has completed, use the Volume keys to select Reboot System Now then press the Power key.
8. After a Wipe Data / Factory Reset has been performed, the device will need to go back through the activation and setup process

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.

Data will be lost so first press the back up option and take a back up into sd card

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 theVolume 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.

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 theVolume 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.