How To Unlock Samsung Galaxy F15 5G Phone Without Password?
How To Unlock Samsung Galaxy F15 5G Phone Without Password?
Has your Android smartphone been locked, and are you having trouble unlocking it now because you have forgotten phone password? Looking for methods to remove the password from your Android phone without doing a factory reset?
If the answer is “YES,” you’ve come to the correct spot.
Many people, including you, have had similar issues and wish to know how to unlock an Android phone without a password.
As a result, we have created some of the greatest guidelines or, you might say, top ways that may assist you in unlocking Android phones today, simply for you and countless other Android users.
Part 1: Unlock Your Locked Screen Without Password By 6 Efficient Ways
1. By your Google account
You can use your Google Account to unlock the Android phone password if, after several tries, you are still unable to do so without doing a factory reset.
You need to log into the Google account that is associated with the Samsung Galaxy F15 5G device, then do the following:
- The unlock pattern may only be used five times before a notification telling you to try again in 30 seconds appears.
- “Forgot pattern” will show up at the bottom of the screen.
- You must enter the Gmail account that is associated with the Samsung Galaxy F15 5G device here before selecting “Next.”
- That’s it; from this point forward, you may enter any new PIN or pattern that you can recall to unlock your smartphone.
2. Google Find My Device
Using your Google account is a superb method for finding the Samsung Galaxy F15 5G device when lost or stolen.
In addition, it may be used to lock or ring your smartphone. You may have noticed that there are three options available when using this feature: “Ring,” “Lock,” and “Erase.”
To bypass the Android lock screen, all you need to do is sign into the Samsung Galaxy F15 5G device’s associated Google account and then follow these steps:
- On any Android device or a computer, go to <www.google.com/android/find> and sign in using your Google account. Choose the Android smartphone you wish to unlock after that.
- After choosing the Samsung Galaxy F15 5G device, select one of the three options, “lock,” from the list.
- There will be a new pop-up window that you can use to change the Samsung Galaxy F15 5G device password. Additionally, you can choose to add a phone number or recovery email.
- Confirm it immediately, then input the password you just established on your locked device.
Many Samsung customers have this issue, which prevents them from using their devices. Try using the “Find My Mobile” feature on your mobile if you wish to unlock it if you’re a Samsung user. It would be helpful if you had a Samsung or Android model account.
After that, use Find My Device to unlock your Android phone without losing any data by following the instructions below:
- Sign in with your Samsung account at findmymobile.samsung.com.
- Choose “Lock my screen” from the menu on the left, type a new PIN in the box given, and then click “LOCK.”
Your smartphone will be unlocked, and the password will be changed to the new one after a brief delay.
3. Use ADB (Android Debug Bridge)
Without a factory reset, Android phone passwords may also be unlocked using the Android Debug Bridge (ADB).
- You must first download ADB to your computer. Visit the Android developer’s website at https://developer.android.com/studio/command-line/adb.html to do this.
- Launch the installer after that to begin downloading crucial software for your machine.
- Here, you must use a USB cable to connect your Samsung Galaxy F15 5G to the computer
- This will activate the developer option on your smartphone if you navigate to Settings > About Phone > and choose the “Build Number” option seven times.
- After that, activate USB debugging by going to Settings > Developer Options.
- Launch the command prompt in the ADB installation directory after your device is connected to the system.
- Press enter after typing “ADB shell rm /data/system/gesture.key” into the command line.
- Finally, just restart your smartphone and use it as normal.
4. Hard reset (data loss)
Each brand has a unique method for hard resetting a locked Android device. The methods to factory reset locked Android devices from Samsung, LG, HTC, Sony, and Huawei are compiled here.
When your phone is locked, you may access the recovery menu of your phone using its physical keys and choose to hard reset the Samsung Galaxy F15 5G device. Here’s how to restore a locked phone to factory settings.
- Use the buttons to see the recovery menu.
- Press and hold the Volume Up and Side buttons simultaneously until you see the brand logo on the screen for Android devices without a Power/Bixby/Home button.
- Press and hold the Volume Up, Bixby, and Power buttons all at once if your smartphone has a Power button. Releasing them before a logo arises is advised.
- Use the Volume Down key to highlight Wipe data/factory reset when the Android system recovery option displays, then hit the Power/Bixby key to choose it.
- Allow a few seconds for the factory reset procedure to finish after selecting Yes, or Factory data reset. The phone will reboot once you pick the Reboot system. Now you may configure it as if it were a brand-new gadget.
5. Unlock from Forgot Pattern (android 4.4 or lower)
This is another choice that might assist you in unlocking your phone without a factory reset or password. You may have observed that when pattern lock was enabled on your device, a security PIN question was also prompted at that time.
Therefore, you have the choice to Backup PIN, which might assist you in unlocking your smartphone, if you are unable to unlock it. To do it, take the following actions:
- Click on Android pattern lock.
- You’ll see a notification telling you to try again in 30 seconds after failing many times.
- The “Backup PIN” option will be there; choose it.
- Put the backup PIN and OK here.
- At last, you may unlock your cellphone by entering the backup PIN.
6. Boot into safe mode
Here’s how you can boot into safe mode.
- Hit the power button on your phone.
- Press and hold the volume down button on your phone as the animation begins. Hold it down until the animation is finished and your phone enters safe mode.
- “Safe mode” will be shown at the bottom of your screen.
- Out of safe mode
- Switch off your phone.
- Press the Power button on your phone for around 30 seconds, or until the Samsung Galaxy F15 5G device restarts.
- You will see that after entering and booting into the safe mode, the lock option will not be visible.
- Then you will also see the option to turn off boot.
- You can get rid of the locked phone by proceeding with that option.
Part 2: Easy Tool To Unlock Android Phone Without Password
If you forget the lock code, you can simply unlock your Android phone using Dr.Fone - Screen Unlock.
Have you encountered the same situation? Do not fret. You may use Dr.Fone - Screen Unlock to unlock the screen lock on Android smartphones. It enables you to erase an Android phone’s password, PIN, pattern, and fingerprint.
Let’s learn how to safely remove the Android lock screen.
Step 1: Connect your phone
Open Dr.Fone on your PC, then select “Screen Unlock” from the list of tools.
The Dr.Fone functionality is still usable with the old UI of the Dr.Fone Mac version, but we will update it as soon as we can.
Connect your Android phone to the PC via a USB cable. then click the “Unlock Android Screen” button on the software.
Step 2. Choose a device model
Nearly all Android devices feature locked displays, including Android. Because the recovery kits for different phone models vary, it’s important to pick the correct device brand to unlock the lock. Every model of supporting hardware is included in the list.
Step 3. Switch to download mode
If you then adhere to the instructions on the software, the phone will enter Download Mode.
- Offset your phone.
- Hold down the Power, Home, and Volume Down keys all at once.
- Use the Volume Up button to start Download Mode.
- Remove the Android lock screen starting now..
Step 4. Download a package for recovery
The recovery package will begin downloading once you set your device in download mode. Wait only till it is completed.
Step 5: Unlock Android without erasing data
After the recovery package download is finished, click “Remove Now.” This operation won’t harm any data on your Android device.
When everything is done, you won’t need to enter a password to access your Android smartphone, allowing you to see all of your data without any limitations.
Bonus Tips: How To Keep Our Data Safe?
Dr.Fone - Phone Backup is an excellent solution to keeping data safe and secure and baking it up before resetting your device, even if you have forgotten your password. You may quickly and conveniently back up practically all forms of Android phone data with Dr.Fone - Phone Backup (Android). Additionally, you may examine and export only certain types of data.
Here’s how you can use Dr.Fone - Phone Backup to keep data safe.
Step 1: Connect your Android phone to your PC.
Open Dr.Fone on your PC, then select “Phone Backup” from the menu.
Next, join your Android phone to the computer with a USB cable. The phone must be in USB debugging mode, please. You will be prompted to approve USB Debugging in a pop-up window on the Android phone if your version of Android is higher. Press the OK button if you would.
Click Backup to start backing up the data on your Android device.
If you have previously used this programme to back up your device, you may review your backup history by clicking on “View backup history.”
Step 2: Choose which file types to backup.
Once the Android phone is connected, select the file types you want to backup. Dr. Fone has previously examined all the file types for you. After that, click Backup to start the backup process.
It will cost some time for the backup. Do not disconnect your Android phone from the computer, use it, or delete any data while making a backup.
When the backup is complete, you may click the View the backup button to see what’s in the backup file.
The Bottom Line
It would be best if you had been able to answer the question, “How to unlock an Android phone without password,” using the techniques we have demonstrated here. The most effective way for resetting an Android phone is Wondershare Dr.Fone - Screen Unlock for Android. You may quickly reset a locked Android phone without a password with only a few clicks.
Lock Your Samsung Galaxy F15 5G Phone in Style: The Top 5 Gesture Lock Screen Apps
Ever wondered, if there was an easier and more interesting way to unlock and open your devices and apps without boring PINs/Passwords that you tend to forget? Worry not, gestures are here! Imagine the joy when you can unlock your phone by just waving your hand over it, or instead of getting access through confusing patterns or lengthy PINs, you can just get in by drawing an alphabet! So let’s go through some gesture lock screen apps for Android phones.
Gestures in Android
Gestures have become an iconic piece of the entire mobile operating system and experience, giving all Android users the joy of using our gestures for functions in our mobile phones We will be discussing 5 gesture lock screen apps, but let us first talk about the existence of gestures in Android.
- • Two-finger swipe down
- • Press and hold on notifications
- • Triple-tap to zoom in
- • Tap and hold on menus
- • Double-tap to wake
- • Press and hold Power Off Button
These gestures gave Android developers an idea of creating apps, to make use of new gestures for not only in-phone functionality but also for the most basic smartphone function of locking and unlocking.
Why do we need these gesture apps? –Would you not want to control your phone’s notification bar by just waving your hand over the screen, when it’s not reachable? These apps are not only fun but also useful and efficient. So, now let us discuss 5 Android gesture lock screen apps.
1) Gesture Lock Screen
A top-rated app in the Google Play Store, for gestures, the Gesture Lock Screen is a wonderful gesture app that locks and unlocks Android lock screens. Rated 4/5 stars in the Google Play Store, this app was developed by Q Locker.
Gesture Lock Screen is an all-in-one gesture app that locks the screen as well as provides you with other good features. The app allows you to draw anything or gesture to unlock your phone; you can draw letter, signatures, various shapes, whatever you want to unlock your device! This app gives you the convenience to unlock your phone through fingerprints, gestures, and recover passwords as well.
• Gesture – you can easily add/change gestures, it can be a single or a multiple stroke gesture as well. For maximum accuracy, this app features gesture sensitivity. If you want a unique lock screen, this app is ideal!
• Customization – This app is highly customizable, so let your creative tech ideas fly! App notifications are available for Android 4.3 and above. Unread notifications will appear on the lock screen, and you can easily hide any confidential notifications.
With over 40,000 5/5 ratings and 5,00,000-10,00,000 installs, this app proves to be the top gesture app for locking your phone.
Download this app from here - https://play.google.com/store/apps/details?id=qlocker.gesture&hl=en
2) Magic Unlock
Magic Unlock app, developed by zonep.ro, is designed with the main aim of responding to hand movement. The future is here!The app detects the movements of your hand, preferably horizontal or vertical, through the phone’s proximity sensor and then opts to unlock the screen. Technology, I tell you!
Firstly, the lock screen security needs to be turned off. You can do this by going to Settings on your phone, then click on Security, then “Screen Lock” and change the lock type to swipe or slide. Now, fire up this app and turn on the magic unlock option. Tada! Now you are all set to unlock your device via air gesture.
The app was released early 2017, but Magic Unlock has already received 50,000-100,000 installs and has a 4.2/5 rating in the Play Store, giving you all the more reason to install it. The app requires Android 4.1 and above.
Download the app from here - https://play.google.com/store/apps/details?id=com.binarybuilding.magicunlock&hl=en
3) Gesture Magic
Another app that uses gesture to lock/unlock the screen is the Gesture Magic app, developed by Apps2all. Compatible with most Android devices, this app is very easy for you to use.
The app already suggests you with predetermined gestures to unlock the screen and open the specific apps. How convenient!
Features – Don’t we all love apps that do not just stick to their main purpose but also come with extra features? This app allows you to launch apps, make calls, send text messages, and quickly access all applications with ease, everything with the help of gestures! This app needs to use the Samsung Galaxy F15 5G device Administrator permission in order to work.
Launched on 17th August 2017, the app has already fetched 100,000-500,000 installs and has maintained a 4/5-star rating, proving why it’s worth using despite being a new-comer.
Download this app from here - https://play.google.com/store/apps/details?id=com.gesture.action&hl=en
4) Gesture Lock Screen
Developed by Prank App, Gesture Lock Screen is a wonderful app that allows to securing your Android phone with letters, signatures or a pull-down gesture. This is an intelligent gesture screen-lock app that detects and adjusts to the letters that are created every time and stored as lock screen passwords. You can be creative with this app as well; hearts, circles, triangles, squares, make any shape, letter, number and save it as the gesture lock.
Gesture Lock Screen is designed to allow you to launch any personal application through your personalized gesture, so you do not have to worry about anyone meddling with the contents of your phone. The app comes with the following range of features:
• Create any kind of password – letters, shapes, numbers, signatures, etc.
• App notifications appear on the lock screen itself - unread texts, calls, app notifications, etc.
• Double tap the notification, draw the gesture to unlock and open the app – privacy, finally!
• Supports both single as well as multiple stroke gesture.
With a 4.4/5-star rating in the Play Store, and with 5,000-10,000 downloads in a span of 2 months of its launch. The app works on Android 4.1 and above.
Download it from - https://play.google.com/store/apps/details?id=com.vasu.gesturescreenlock&hl=en
5) Gestos – Gestures
Developed by Imaxinacion, Gestos-Gestures is an amazing gesture screen-lock app, designed with the main aim of providing you with fluency and speed as you perform actions on your device. This app aims to give you the facility of accessing various functions by drawing an easy gesture on the lock screen.
Gestos allows you to – call contacts, enable or disable settings like Wi-Fi, Bluetooth, GPS, etc, run various system options, lock or unlock your device, and access websites as well.
Talking about configuration, Gestos is a well-designed app that can be activated by just a double-touch on your home screen. Its sensitivity can be adjusted according to what you prefer, a permanent notification toggle floating button is available as well!
Maintaining a 4.1/5-star rating in the Play Store, Gestos has had 100,000-500,000 installs.
Download it from here - https://play.google.com/store/apps/details?id=com.imaxinacion.gestos&hl=en
As Android reaches new heights every year, gestures are getting more and more enhanced, as their functionalities increase as well. Gestures have always been an exciting feature in Android phones and a convenient one as well. They are practical and fun to use, and the apps mentioned above are some of the best gesture-lock apps amongst the vast number of such apps in the Google Play Store. If you want to make your tasks easier by using gestures on your phone, feel free to try some of the mentioned apps here.
10 Easy-to-Use FRP Bypass Tools for Unlocking Google Accounts On Samsung Galaxy F15 5G
FRP, popularly known as the Factory Reset Protection program, is an additional data protection feature for all Android users. As per the FRP feature, in any unfortunate event wherein you lose the Samsung Galaxy F15 5G device or if any unauthorized person tries to reset it, the Samsung Galaxy F15 5G device will require the Google Account ID and password to be fed in. So, this program is designed to curb the chances of theft and other fraudulent activities.
However, it was found that the FRP feature comes out as trouble for those who somehow forget their Google Account ID/ password, or who have purchased a second-hand phone either online or via some third-party source. Hence, it is important to know how to bypass a Google Account. Below mentioned are the Top 10 FRP tools to bypass Google accounts.
Tool 1: Android FRP Bypass Helper - Dr.Fone - Screen Unlock (Android OS 2.1 or later)
Dr.Fone - Screen Unlock can help you bypass your Google account and enter into your device’s home screen with ease. No matter whether you can’t get the Google account from previous sellers, or just forgot the PIN. In just 5 minutes, your Google FRP lock can be removed.
safe & secure
Features
- Available for Samsung/Xiaomi/Readmi/OPPO/Realme/Vivo devices.
- It provides a useful guide.
- Dr.Fone - Screen Unlock can reactivate the lock removers
Price: $39.95/year, Go and check Dr.Fone –Screen Unlock.
Pros:
- a. Easy to use with detailed guide including video guide.
- b. Only need a few minutes to complete.
- c. It is also useful for users who do not know their mobile phone model.
- d. It is safe and convenient.
Cons:
A little pricey, but worth it.
You can easily download it from Dr.Fone’s official website within one minute and use it with our detailed instructions. Even if you don’t know the specific model of your Samsung device, Dr.Fone - Screen Unlock will provide you with quality service and assistance. Check the bypass FRP lock guide in detail to help you disable your Google account on your Android smartphone.
### Dr.Fone - Screen Unlock (Android)Bypass Android FRP Lock without Google Account or a PIN Code.
- It is helpful even though you don’t know the OS version of your Samsung.
- Only remove the lock screen, no data loss at all.
- No tech knowledge asked, everybody, can handle it.
- Work also for Xiaomi, Redmi, Oppo, Realme, Vivo devices.
4,926,978 people have downloaded it
Tool 2: Samsung Reactivation/FRP Lock Removal Service
Samsung Reactivation/FRP unlocking service can solve your FRP issue through an online service. With this, you only need to enter your phone details to get the unique user ID and password. The staff will contact and help you to bypass the Google FRP lock on your Samsung devices within 24-72 hours.
Features
- Unlock most Samsung FRP locks, not limited to the version of Android.
- Huaman service only, solve the problem with the help of staff.
Go and check Samsung Reactivation/FRP unlocking service
Pros:
- It provides online service - no confusing video tutorials and no risky software to download.
- No tech knowledge is required. Everybody can handle it.
- Issues will be solved within 24-72 hours.
Cons:
- It supports Samsung phones only now.
- It takes a long time to wait.
One of the best tools that cover almost all the latest versions of Android phones. This tool is quite easy to use.
Features
- Works for Samsung, HTC, MTK, MI, QUALCOMM, SPD, and many more devices.
- This tool is for all the latest device versions.
- The old version of SP Flash is also covered by this tool.
Go and check FRP/Google Account Bypass and Flashing Tool
Price: Free
Pros: Work for almost all the versions of Android phones.
Cons: Currently not tested with Android versions 5.1.1 and 6.0.1.
Tool 4: FRP Bypass Solutions
FRP Bypass Solutions is tested and updated for the process of bypassing Google verification if you forget the credentials of your account.
Features
- It works with all Android devices such as Moto series, LG, ZTE, HUAWEI, Vodafone, Samsung, Lenovo, HISENSE, XPERIA, and lots more.
- It covers the latest versions and the team keeps it updated.
- It is a useful tool for Samsung Galaxy S8.
Go and check FRP Bypass Solutions
Price: $7.00
Pros: The tool has been tested and verified to work for Android 7.0 and 7.1.
Cons: You need to purchase the tool to use all its features.
Tool 5: D&G Password Unlocker
D&G unlocker tool assists you in step by step and comprehensive way to unlock your Android phones. It can help Android users to remove FRP restrictions from their mobiles and tablets in a few seconds. The program will work for major brands including Samsung, Lenovo, Motorola, Xiaomi, Huawei, HTC, and Yuphoria.
Features
- It is compatible with Windows 7, 8, 10, XP, and Vista.
- It supports Samsung, Motorola, Huawei, HTC, Lenovo, Xiaomi, and Euphoria.
Go and check D&G Password Unlocker
Price: Free
Pros: Provides free setup for Windows.
Cons: There are no details available for LG devices.
Tool 6: Pangu FRP Bypass tool for Remove 2017
The processing time is just about 10 minutes. This facility is for the Authorized Google account owner. With this tool, the FRP lock will get removed.
Features
- This tool works for All Samsung, Motorola, Micromax, Lenovo, MTK, and SPD devices.
- Lollipop 5.1, Marshmallow 6.1, Nougat 7.0 and 7.1.2, and Oreo 8.0.
Go and check D&G Password Unlocker
Price: Free
Pros: Works well with all Samsung and other devices.
Cons: The tool requires you to use an OTG cable with a pen drive or a computer.
Tool 7: FRP lock Google Verification Bypass Tool Software
This is a kind of software program that is innovative and through this unlocker tool, additional protection for the Android devices can get bypassed.
Features
It works for HTC, Samsung devices, Motorola, Huawei, Lenovo, OPPO, LG, Alcatel, Xiaomi, Sony, and other Android devices.
Go and check FRP lock Google Verification Bypass
Price: Free
Pros:
- Works well for almost all Android devices and unblocks any Android phone with a Reactivation Lock error.
- It is 100% free.
- Also, it works for higher Android versions from 5.1.1 – 6.0 to 7.1.
Cons: To Apply this method you need a Wi-Fi connection or a micro USB cable.
Tool 8: Samsung FRP Helper V.0.2 FRP Removal Tools
Samsung FRP tool uses the ADB feature to Bypass the FRP verification process.
Features
- This tool has an easy and interactive GUI.
- It comes with a detailed guide.
Go and check Samsung FRP Helper V.0.2 FRP Removal
Price: Free
Pros: Easy to use and comes with a guide.
Cons:
- It does not work with other models besides Samsung.
- Combination firmware is required to run this software.
Tool 9: GSM Flasher ADB Bypass FRP Tool
GSM flasher uses an easy and accessible way to bypass an Android device’s lock through a USB cable. The downloading, as well as the complete setup, takes a few minutes. Also, ADB (Android debug bridge) helps you to have to communicate with your device.
Features
- a. GSM flasher software setup is easy to use.
- It works with all OS types.
- A pattern lock removal facility is also available.
- This file can be used for the reactivation of lock removers.
Go and check GSM Flasher ADB Bypass FRP
Price: Free
Pros: It can be used for all types of Android devices.
Cons: Can also act as a reactivator for lock removers.
Tool 10: FRP Bypass APK Download Samsung for Android
FRP Bypass helps to overcome the security feature of the Samsung Galaxy F15 5G device so that you can easily bypass the Google Account verification process. As per user ratings, FRP Bypass APK has 4.1 Stars.
Features
- A useful tool for Samsung Galaxy devices.
- Download and use it for free.
- You can also share this tool with your friends and family.
Go and check FRP Bypass APK Download Samsung for Android
Price: Free
Pros:
If you have forgotten your Google Account ID/ password, this tool will come in handy.
Cons:
- You cannot access this tool directly through the local market or resources.
- Play Store users cannot access this tool.
The Comparison of the 10 FRP Bypass Tools
Bypass FRP Tools | Unique Feature | Price | Cons |
---|
| Dr.Fone - Screen Unlock | Bypass most Android FRP remotely | $39.95 per year for 1-5 mobile devices | Only available for Samsung/Xiaomi/Readmi/OPPO/Realme/Vivo at present |
| Samsung Online Removal Service | Huaman service only, solve the problem with the help of staff | $15-$50 per time for 1 device | It takes a long time to wait |
| FRP/Google Account Bypass and Flashing | Works for Samsung, HTC, MTK, MI, QUALCOMM, SPD, and many more devices | Free | Currently not tested with Android versions 5.1.1 and 6.0.1, and not always functional. |
| FRP Bypass Solutions | Works with all Android devices such as Moto series, LG, ZTE, HUAWEI, Vodafone, Samsung, Lenovo, HISENSE, XPERIA, etc. | $7 | You need to purchase the tool to use all its features |
| D&G Password Unlocker | Compatible with Windows 7, 8, 10, XP, and Vista | Free | Unavailable for LG devices |
| Pangu FRP Bypass tool for Remove 2017 | Lollipop 5.1, Marshmallow 6.1, Nougat 7.0 and 7.1.2, and Oreo 8.0. | Free | Requires you to use an OTG cable with a pen drive or a computer. |
| FRP lock Google Verification Bypass Tool Software | Additional protection for Android devices can get bypassed. | Free | A Wi-Fi connection or a micro USB cable is needed |
| Samsung FRP Helper V.0.2 FRP Removal Tools | With an easy and interactive Guide. | Free | Combination firmware is required to run this software |
| GSM Flasher ADB Bypass FRP Tool | Works with all OS types | Free | Can also act as a reactivator for lock removers |
| FRP Bypass APK Download Samsung for Android | Effective on Samsung devices | Free | Play Store users cannot access this tool |
The Bottom Line
The article above gives useful information on some of the important tools for the FRP bypass process. The information available is to assist the original users only who have somehow forgotten their user GoogleID/password. We hope that using any of the above methods will definitely resolve your FRP bypass issue with ease. If you also want to bypass the iCloud activation lock, Dr.Fone is of help.
- Title: How To Unlock Samsung Galaxy F15 5G Phone Without Password?
- Author: Peter
- Created at : 2024-07-16 10:40:15
- Updated at : 2024-07-17 10:40:15
- Link: https://android-unlock.techidaily.com/how-to-unlock-samsung-galaxy-f15-5g-phone-without-password-by-drfone-android/
- License: This work is licensed under CC BY-NC-SA 4.0.