When screen opens it suddenly starts asking for a password. I have never used a password, don't have one and cannot unlock my Kindle Fire HD

Forgot my password

Did you forget the password used to unlock your Kindle? If so, you'll need to reset the device to gain access. By resetting, your Kindle will be restored to factory defaults, which means your registration information and content will be removed, and all settings will return to the defaults.

To reset a Kindle Fire 1st Generation:
1. From the lock screen, slide the Unlock Bar from right to left
2. Use the keypad to enter characters into the password/PIN field four times
3. You'll be prompted to reset your Kindle Fire. Tap "Ok reset"

To reset all other Kindle Fire models:
1. From the lock screen, slide the Unlock Bar from right to left
2. Use the keypad to enter characters into the password/PIN field five times.
3. When prompted to reset your Kindle Fire, tap "Reset"

To reset a Kindle 2nd Generation, Kindle Keyboard, or Kindle DX:
1. Slide and release the power switch to turn on the device or exit sleep mode
2. Enter "resetmykindle" in the password field and press the enter key on the key pad
3. Wait several minutes while your Kindle restarts

To reset a Kindle (5-way controller):
1. Press and release the power button to turn on the device or exit sleep mode
2. Select the keyboard key once on the password screen and enter "resetmykindle" in the password field, then select "Enter"

To reset a Kindle Touch or Kindle Paperwhite:
1. Press and release the power button to turn on the device or exit sleep mode
2. Tap the password field to bring up the onscreen keyboard
3. Enter "111222777" and select "OK"

If you don't remember your Parental Controls password, you can deregister your device instead of resetting, as long as you're connected to a wireless network. You'll need to redownload your content, but items that were transferred via USB will be kept. Here's what to do:

1. Visit the Manage Your Content and Devices (www.amazon.com/manageyourkindle) page on your computer
2. Select the "Manage Your Devices" link
3. Select "Deregister" to deregister your device from your account
Sync your Kindle, then register again.

If you need help with your Wi-Fi password, please contact your Internet Service Provider or router manufacturer.

Forgot my password

Did you forget the password used to unlock your Kindle? If so, you'll need to reset the device to gain access. By resetting, your Kindle will be restored to factory defaults, which means your registration information and content will be removed, and all settings will return to the defaults.

To reset a Kindle Fire 1st Generation:
1. From the lock screen, slide the Unlock Bar from right to left
2. Use the keypad to enter characters into the password/PIN field four times
3. You'll be prompted to reset your Kindle Fire. Tap "Ok reset"

To reset all other Kindle Fire models:
1. From the lock screen, slide the Unlock Bar from right to left
2. Use the keypad to enter characters into the password/PIN field five times.
3. When prompted to reset your Kindle Fire, tap "Reset"

To reset a Kindle 2nd Generation, Kindle Keyboard, or Kindle DX:
1. Slide and release the power switch to turn on the device or exit sleep mode
2. Enter "resetmykindle" in the password field and press the enter key on the key pad
3. Wait several minutes while your Kindle restarts

To reset a Kindle (5-way controller):
1. Press and release the power button to turn on the device or exit sleep mode
2. Select the keyboard key once on the password screen and enter "resetmykindle" in the password field, then select "Enter"

To reset a Kindle Touch or Kindle Paperwhite:
1. Press and release the power button to turn on the device or exit sleep mode
2. Tap the password field to bring up the onscreen keyboard
3. Enter "111222777" and select "OK"

If you don't remember your Parental Controls password, you can deregister your device instead of resetting, as long as you're connected to a wireless network. You'll need to redownload your content, but items that were transferred via USB will be kept. Here's what to do:

1. Visit the Manage Your Content and Devices (www.amazon.com/manageyourkindle) page on your computer
2. Select the "Manage Your Devices" link
3. Select "Deregister" to deregister your device from your account
Sync your Kindle, then register again.

If you need help with your Wi-Fi password, please contact your Internet Service Provider or router manufacturer.

1. From the top of the screen, swipe downwards.
2. Select 'More'.
3. Tap 'Security'.
4. Find 'Lock Screen Password' and tap 'Off'.
5. Now enter your current password.
6. Select 'Next' and tap 'Done' to confirm.

It will not ask for a password each time you turn on or it goes to sleep!

Note: Your Kindle Fire lock screen password or PIN is different from your Amazon account password.
Reset Your Kindle Fire Reset your Kindle Fire if you forgot your lock screen PIN or your parental controls password and need to regain access.

If you have any content not saved in your Kindle Library in the Cloud, be sure to transfer that content from your device to your computer via USB.

Important: Resetting your Kindle Fire will remove all content downloaded to it. Any content you purchased from Amazon is saved to your Kindle Library in the Cloud and will remain in the Cloud. You can download that content again if you register your Kindle Fire to your account again.

1. From Home, swipe down from the top of the screen, and then tap More.
2. Tap Device.
3. Tap Reset to Factory Defaults, and then tap Erase Everything.

Your Kindle Fire will restart.

To use your Kindle Fire again, you'll need to connect wirelessly and register your Kindle Fire.

Plug in your Kindle to your PC. Watch the "Kindle screen" come on, then unlock (slide unlock bar) the main window to see a notice showing your plugged in. Wait until you see the window open on your PC for the options window then click on "view files" option. When all files show on your PC screen from the Kindle, then click on "pictures" folder to open. Copy and past your pictures from your PC into this folder. You can also copy mp4 videos into your videos folder to watch movies on Kindle Fire HD and the same with your mp3 files into the music folder. Hope this works.

You may have to unregister the kindle and then re-register it. You will lose everything.

If you can't remember your lock screen password or PIN, you will need to reset your Kindle Fire.

Important: Resetting your Kindle Fire will remove your personal information (including your lock screen password or PIN), Amazon account information, and downloaded content and apps. Any content you purchased from Amazon is automatically saved to the Cloud. You can download that content when you register your Kindle Fire to your account again.

1. From the lock screen, slide the Unlock Bar from right to left.
2. Enter characters into the prompt ten times. You will receive several warning messages. Dismiss the warning messages, and continue entering characters into the prompt.

After you've entered the incorrect password or PIN ten times, your Kindle Fire will reset.

Prerequisites:

1. Kindle Fire HD 7", Kindle Fire HD 8.9" or Kindle Fire 2
2. Rooted Kindle: http://forum.xda-developers.com/show....php?t=2069117
3. Google Play: http://forum.xda-developers.com/show....php?t=2069329

Custom Locker Step 1. Using Google Play, search for "No Lock". Download and Install No Lock - You may use this link to verify the software: https://play.google.com/store/apps/d...d.nolock&hl=en

Custom Locker Step 2: DO NOT Open No Lock, it will fail. Next, go to the Kindle, open up ES File Explorer or Root Explorer

Custom Locker Step 3: Be sure to enable Superuser on ES File Explorer. Navigate to /data/app, find org.jaf.androidnolock-1.apk - long press on the APK, select Move or Move To. Next, Move org.jaf.androidnolock-1.apk from /data/app to /system/app.

Custom Locker Step 4: Next find org.jaf.androidnolock-1.apk in /system/app. Long press and Choose Permissions (on Root Explorer) or Properties (on ES File Explorer). Change the Permissions to: Owner: Read Write Group: Read Others: Read - Click OK to apply the Permissions.

Custom Locker Step 5: DO NOT Open No Lock. Pull down the Upper Status Bar, Select More+, Select Sounds & Display and change the Screen Timeout to: Never and then reboot the Kindle.

Custom Locker Step 6: Once the Kindle is back to the desktop, open No Lock which is found in the Kindle Apps, select "Locking disabled".

Custom Locker Step 7: Using Google Play Search for MagicLocker Main which you can find here: https://play.google.com/store/apps/details?id=mobi.lockscreen.magiclocker - Download and Install Magic Locker Main

Custom Locker Step 8: Be sure to enable Superuser on ES File Explorer. Navigate to /data/app, find mobi.lockscreen.magiclocker-1.apk - long press on the APK, select Move or Move To. Next, Move mobi.lockscreen.magiclocker-1.apk from /data/app to /system/app.

Custom Locker Step 9: Next find mobi.lockscreen.magiclocker-1.apk in /system/app. Long press and Choose Permissions (on Root Explorer) or Properties (on ES File Explorer). Change the Permissions to: Owner: Read Write Group: Read Others: Read - Click OK to apply the Permissions.

Custom Locker Step 10: Using Google Play Search for MagicLocker Theme - Download and Install a few Themes that interest you. I use Starry lock screen and Jelly Bean lock screen.

Custom Locker Step 11: Launch MagicLocker Main, click on Next, Next, Next - You will now see a popup, click Next and choose Clear Defaults until it Grays Out, click on the picture of a house (Home Button), you will be asked which Launcher to Use, you choose MagicLocker Main <Select Default>.

Custom Locker Step 12: Launch MagicLocker Main, sometimes you are taken to your regular Launcher App, if this happens repeat Step 11. Select "Lost Robot Music" and click Apply. Next MagicLocker applies the Theme and asks if you would like to Customize it, answer Yes or No depending on your interests. I selected No so we can move on. You can always customize it latter.

Custom Locker Step 13: Next MagicLocker will show you an example of the Theme. Unlock it by pulling down the circle in the Android Picture.

Custom Locker Step 14: Now we need to customize the way MagicLocker reacts when you unlock to the Left which is a Phone Call and when you unlock to the Right which is a SMS Application. Unlock straight down just unlocks the screen.

Custom Locker Step 15: OK, lock the Kindle by depressing the Power Button for 1 brief Second until the screen turns black. Depress the Power Button briefly again, you will see the lock Screen. Unlock to the Right, next you are asked which is your SMS Software, I use Go SMS Pro. Check the Box to "Always use this application". Unlock to the Left, next you are asked which is your Phone Software, I use Google Voice and Groove. Check the Box to "Always use this application".

Custom Locker Step 16: Next, let's install the Themes. Find the name of the Themes you downloaded in Step 8. In this example we picked Starry lock screen and Jelly Bean lock screen. So go into the Apps. Find Starry lock screen, click on Starry lock screen and select "Install this theme". The installer will process and you will be back at the MagicLocker main Theme Menu. Exit MagicLocker, then go to Apps, find Jelly Bean lock screen, click on Starry lock screen and select "Install this theme". The installer will process and you will be back at the MagicLocker main Theme Menu.

Custom Locker Step 17: Now we need to let MagicLocker know what is your Default Launcher, so launch MagicLocker, find Preferred Home Launcher, click on Preferred Home Launcher and select your Launcher, we use Nova Launcher Prime.

Custom Locker Step 18: Let's eliminate the Ads from ever appearing again. Open either ES File Explorer or Root Explorer, navigate to /system/app find the dtcp_apk.ap, long press dtcp_apk.apk select Rename. Rename dtcp_apk.apk to dtcp_apk.old.

Custom Locker Step 19: Reboot the Kindle.

Custom Locker Step 20: Whenever you reboot, the Kindle Fire Framework starts before anything else, so you may see the Kindle lock screen at Reboot IF you do not let everything start. If you can not wait 5 to 10 minutes, unlock it and let all the services start, usually 10 minutes is sufficient. Once you unlock it, you will notice there are no more Ads! After 10 minutes No Lock Service kicks in and disables the Kindle Fire Lock Screen. We have attempted to play with the start-up timing and ended up with Framework missing, so Amazon was smart when they thought out this function. Also, the service that controls the lock screen is part of the same group that displays the Kindle Framework when you unlock it. Finally, if you do wait 10 minutes you will never see the old Kindle Fire Lock Screen!

That is it! Next we will offer you a solution with the stock lock screen but you will need high resolution photos to make it function properly. Be sure to look at our new Backup and Recovery Software for the Kindle Fire Series: http://forum.xda-developers.com/show....php?t=2096888

So if I understand you correctly, you are now locked out of your Kindle and you never using a PIN Code when you setup the Kindle, correct?
Unfortunately there is no back door password, the only way to crack the Kindle is by calling customer service and usually they replace the unit, so you loose everything.
Sorry, I wish I had better news.

If you see a lock when you open the kindle have you tried to run your finger from the lock across the screen??? Most new kindle users are unaware of this as I was. If that isn't your problem then I cannot help you. good luck.