How to Unlock Oppo A18 Bootloader Easily

Do you want to unleash the true power of your smart phone? Do you wish to have complete control over your smart phone? If yes, well, here is the answer; unlock bootloader. For people who are already into the tricks of hacking and rooting smart phones, might be aware of this. But still, there are exciting new developments. Bootloader is a code existing in all operating systems which usually comes pre-locked. So, it is important, if you wish to have a custom ROM installed on the Oppo A18 device, or if you wish to have other controls like installing applications which are incompatible, to have the Oppo A18 device bootloader unlocked. But going through with the process of unlocking bootloader and rooting the Oppo A18 device will not help and rather might break the warranty of the Oppo A18 device. This definitely calls for a diligent watch on how to unlock HTC bootloader. So, it is imperative as a user to know the process of HTC bootloader unlock. This article serves you with some ways you could follow to unleash the true power of your HTC device. Here’s how you can do it.

Part 1: Why We Want to Unlock HTC Bootloader

For people with HTC device, unlocking bootloader would mean complete authority over the smart phone and you have all the power to control the HTC device by all means. Since, bootloader usually comes pre-locked, unlocking the bootloader is the initial step if you would like to have a custom ROM installed in your device. There are various advantages of HTC unlock starting from gaining rights of control to installing latest custom ROMs in the phone and installing incompatible applications. Moreover, HTC unlock bootloader could boost the Oppo A18 device speed and battery life and also help in making complete backups of the Oppo A18 device. You could also have controls to remove bloatware from the HTC device. So, all in all, while there could be certain side effects, if not done properly, there are various advantages of unlocking HTC bootloader. If the process is carried out properly, the Android device could be the perfect smart phone you would like to have.

Part 2: How to Unlock Oppo A18 Bootloader

Oppo A18 is the flagship device of HTC by all means. With a world of features and offerings, Oppo A18 truly is a beast. While the phone is very powerful without any modifications, the true potential is yet to be seen and that can only be done if the bootloader is unlocked. So, to have a complete control over the Oppo A18 device, it is important to unlock the bootloader and the process has to be carried out diligently. One of the initial things that needs to be ensured is that the Oppo A18 device is fully charged or atleast 80% mark. Make sure you have the fastboot drivers for the Oppo A18 device configured on the windows machine and the Android SDK. Here are some of the steps which can be followed to unlock bootloader.

Step 1: It is always very important to keep the phone data backed up and more so when you are planning to unlock the bootloader.

As one of the initial measures, backup the Oppo A18 device completely as bootloader unlocking process will wipe all the data off. So, backup all the data like photos, contacts, multimedia files, documents, etc.

Step 2: Go to htcdev.com/bootloader. Ensure that you are registered with HTC and once the sign up is done, log in to HTC dev.

Now, ensure that HTC Sync Manager is installed on the PC.

Step 3: From the bootloader page, select your device using the drop down option as shown in the picture below.

After selecting the Oppo A18 device, click on “Begin Unlock Bootloader”, and then confirm all the dialogue boxes which come your way on screen.

Step 4: Now, you will be presented with four steps to put the Oppo A18 device in bootloader mode. Disconnect the Oppo A18 device from the PC and turn the Oppo A18 device off completely. Press the volume down button along with the power button to switch the Oppo A18 device on in bootloader mode.

Step 5: Use the volume keys of the Oppo A18 device to select Fastboot option along with pressing power button to confirm, after the Oppo A18 device is in bootloader mode. Now, connect the Oppo A18 device to the computer using a USB cable.

Step 6: Go to Fastboot folder on the PC and holding down the shift key, click on any empty space followed by a click on “Open command window here”.

Step 7: In the command prompt window, type “fastboot devices” and press enter. Oppo A18 will show up in the command prompt.

Note: The drivers have to be installed correctly to see the Oppo A18 device in the command prompt. So, if the Oppo A18 device does not show up, reinstall HTC Sync Manager and try again after restarting the computer.

Step 8: On HTC Dev’s website third page, click on “proceed to Step 9”. Follow the steps listed and then click on submit. The unlock token code for the Oppo A18 device will be mailed by HTC. Download the token and name it “Unlock_code.bin” and place the token in the fastboot folder.

Step 9: Now, in the command prompt window, type the following:

fastboot flash unlocktoken Unlock_code.bin

Step 10: On the Oppo A18 , one message will appear asking if you want to unlock the Oppo A18 device bootloader.

Use volume keys to select and power button to confirm. Once this is done, the Oppo A18 device will restart once and it’s done. The device is now bootloader unlocked.

Top 12 Prominent Oppo A18 Fingerprint Not Working Solutions

Part 1. Optimal Solution: Unlock With Wondershare Dr.Fone Directly

Facing a malfunctioning fingerprint on your Oppo A18 can be frustrating. In this scenario, the most effective resolution is the removal of the registered fingerprint. Yet, traditional methods of removing the fingerprint can be difficult and pose security risks. In this case, going for tools like Wondershare Dr.Fone is the best choice. This tool ensures your Pixel device is at no risk.

Dr.Fone offers a swift solution to remove the Android lock screen in five minutes. It effectively removes 4 types of screen locks. These include patterns, PINs, passwords, and fingerprints. Dr.Fone can bypass the Android FRP lock without needing a PIN or Google account. It ensures accessibility to the Android device without such credentials.

Dr.Fone - Screen Unlock (Android)

The Best UnlockJunky Alternative to Bypass FRP and Solve Your Screen Locks

• Remove all Android screen locks (PIN/pattern/fingerprints/face ID) in minutes.
• Bypass the FRP lock of Samsung without a PIN or Google account.
• Everyone can handle the lock screen without any tech knowledge.
• Provide specific removal solutions to promise good success rate.

4,008,672 people have downloaded it

Prominent Features of Wondershare Dr.Fone

1. FRP bypass is enabled for brands like Samsung, Xiaomi, Redmi, Oppo, Realme , and Vivo.
2. With Dr.Fone, bypassing screen locks can be achieved without data loss.
3. Fone supports 2000+ Android phones and tablets from over 18 brands for screen unlocking.

Step-by-Step Guide To Remove Fingerprint Type Lock on Google Pixel Using Dr.Fone

With Dr.Fone, you can resolve the Oppo A18 fingerprint sensor not working issue within minutes. Below is a detailed walkthrough for removing a fingerprint lock on a Google Pixel:

• Step 1: Connecting and Accessing Screen Unlock Feature on Dr.Fone

Open Wondershare Dr.Fone and connect your Android device via a USB cable. Once the connection is established, navigate to the “Toolbox” tab and choose “Screen Unlock.” Upon reaching the new screen, choose the “Android” option. Then, select “Unlock Android Screen” from the options on the following screen.

• Step 2: Selecting Google As the Oppo A18 device Brand and Activating Recovery Mode

Afterward, you’ll be guided to a subsequent screen prompting you to choose the Oppo A18 device brand, Google. Once you select the brand, you’ll be directed to enter a specific mode corresponding to it. For Google Pixel Devices, the specific mode to enter is Recovery Mode. Simply follow the on-screen instructions to activate Recovery Mode on your device.

• Step 3: Initiate the Fingerprint Removal Process

After entering Recovery Mode, the screen unlocking procedure will initiate automatically. Please wait for the fingerprint removal process to finish. In case of failure, select “Try Again” to attempt unlocking again. Upon successfully unlocking your Android device’s screen, tap “Done.”

Part 2. 11 Conventional Solutions To Resolve Pixel Fingerprint Not Working

The solution above using Wondershare Dr.Fone is an effective and comprehensive method. It can tackle fingerprint recognition issues, but sometimes, users may look for simpler alternatives. We will explore conventional solutions that can address Pixel fingerprint problems. Each solution will also explain the underlying reasons for the Pixel 6 fingerprint sensor issue.

1. Fingerprint Sensor Not Touched Firmly

Problem

If the fingerprint sensor fails to recognize your fingerprint, it might be due to inadequate pressure. This could also be due to improper finger placement on the sensor.

Solution: Firm Placement

Ensure you firmly place your finger on the sensor, covering it entirely. Avoid too much pressure, but make sure the sensor fully contacts your fingerprint.

2. Device Showing Glitches

Problem

Glitches or software bugs in your Pixel device may cause disruptions. This can include issues with the fingerprint sensor’s functionality. These problems can range from minor issues to severe software glitches.

Solution: Restart Your Pixel Device

One of the easiest and simplest solutions is to restart your Pixel phone. You can do that by pressing the “Power” and the “Volume Up” keys. It will lead to a pop-up power menu where you must choose “Restart” to reboot your device.

3. Outdated Firmware

Problem

An outdated operating system or firmware can lead to compatibility issues. This can lead to malfunctioning features like the Pixel 6A fingerprint sensor not working.

Solution: Check for Updates

The best way to resolve this issue is to update your Pixel device. Having an outdated version of Android OS can lead to an accumulation of bugs and glitches. Moreover, it can seriously affect the Oppo A18 device’s performance, causing many issues. Here is how to check and update your Pixel phone:

Instructions. On your Pixel device, access the “Settings” app. Within Settings, scroll down to tap the “System” option. On the following screen, hit the “System update” option to check if any latest update is available. Here, if you see any updates, download and install them promptly. Before initiating the update, ensure your device is connected to a stable Wi-Fi network with sufficient battery charge.

4. Dirty Phone or Sensor

Problem

Accumulated dirt, dust, or residue on the phone or fingerprint sensor can cause obstruction. This can lead to the failure to properly recognize your fingerprint.

Solution

1. Cleaning the Phone

Employ a gentle, dry microfiber cloth for wiping down the complete surface of your Pixel device. Take particular care to thoroughly clean the region surrounding the fingerprint sensor. Refrain from utilizing rough substances or strong chemicals as they could potentially cause harm to the Oppo A18 device.

2. Fingerprint Sensor Cleaning

Gently wipe the fingerprint sensor area using a clean, dry cloth to ensure thorough cleaning. For better results, consider using a dampened cotton swab with water or isopropyl alcohol. Before using it again, ensure the sensor is entirely dry.

3. Compressed Air or Soft Brush

Use compressed air or a soft brush if there’s visible debris or particles around the sensor. Be cautious not to apply excessive pressure that might damage the sensor.

5. Screen Protector: Dirty or Damaged

Problem

A smudged or impaired screen protector might disrupt the working of the fingerprint sensor. This can potentially cause it to fail to recognize your fingerprint.

Solution

1. Clean the Screen Protector

Start by effectively cleaning the screen protector on your Pixel device. For a thorough cleaning, consider utilizing a screen cleaning solution. Ensure that the screen protector is free from any dirt or debris.

2. Replace Damaged Protectors

Is the screen protector visibly damaged, scratched, or peeling off? If yes, consider replacing it with a new one. Damaged protectors can hinder fingerprint recognition and compromise device protection.

3. Check Compatibility

Ensure the screen protector is designed to be compatible with fingerprint sensors. Some protectors may obstruct or interfere with the sensor’s functionality.

4. Remove Air Bubbles

There can be air bubbles trapped under the screen protector. If there are, gently press them out towards the edges using a card designed for this purpose.

6. Clean Your Finger

Problem

The problem may lie with your fingers rather than the Oppo A18 device. Unclean or moist fingers can hinder accurate fingerprint recognition on the sensor, causing the Oppo A18 fingerprint sensor to not work.

Solution

1. Cleanse and Dry Your Hands

Remove any dirt, oil, or moisture that might cause issues with the fingerprint sensor. It’s crucial to wash and thoroughly dry your hands. Additionally, verify that your fingers are entirely dry before engaging the sensor. The reason is any moisture or dampness may cause inaccuracies in fingerprint identification.

2. Avoid Oily or Greasy Substances

Refrain from touching oily or greasy surfaces before using the fingerprint sensor. These substances can transfer onto your fingers, affecting sensor accuracy. If your fingers are dirty or damp, pause to clean them using a dry, clean cloth.

7. Covering Screen if Fingerprint on Screen

Problem

Fingerprint marks or smudges on the screen might disrupt sensor functionality. This leads to inaccurate recognition when you try to unlock your device.

Solution

1. Avoid Covering the Sensor Area

Be cautious while cleaning the screen to avoid covering or smudging the area around the fingerprint sensor. Precise cleaning around this area prevents interference with sensor functionality.

2. Use Proper Holding Technique

While holding the Oppo A18 device, avoid placing your fingers or palms over the fingerprint sensor. Opt for holding the Oppo A18 device to minimize accidental contact with the sensor area.

8. Fingerprint Sensor Not Visible

Problem

Misconfigured settings on your Pixel device can lead to situations where the fingerprint sensor is not visible. It can lead to scenarios where the Oppo A18 device fails to recognize your screen unlocking attempt.

Solution: Adjust the Setting To Consistently Display the Sensor

You must adjust the display settings to ensure the fingerprint sensor is always visible. To do that, you can begin by opening the Settings app. Navigate to the “Display” tab and select “Lock Screen.” On the following window, toggle on “Always show time and info.”

9. Low Touch Sensitivity

Problem

The fingerprint sensor may have low touch sensitivity . It can lead to difficulties in accurately recognizing fingerprints, leading to Oppo A18 fingerprint not working.

Solution

1. Adjust Sensitivity Settings

Accessories like a screen protector might impact the performance of your Pixel device’s touch sensitivity. When using a screen protector, your Pixel enhances touch sensitivity. To do that, navigate to the Settings app and open it. Move to the “Display” window and scroll down to the last option. Toggle on the “Screen protector mode” to increase the screen sensitivity.

2. Finger Re-Enrollment

Delete existing fingerprints and re-register them. This re-enrollment can sometimes improve sensitivity and help remove the issues. Here is how you can delete and re-enroll your fingerprint:

• Step 1. In the Settings app of your Pixel, tap “Security & Privacy.” Then, press “Device Unlock” and choose “Fingerprint Unlock.” The device will now ask you to provide your device PIN or password.

• Step 2. Tap “Fingerprint Unlock” on the following screen and delete the previously enrolled fingerprints. Then, press “Add fingerprint” and follow the on-screen prompts to complete the process.

10. Other Hardware Issues

Problem

Persistent fingerprint sensor problems might indicate underlying hardware issues . This could go beyond common troubleshooting and might require professional help.

Solution

1. Inspect for Physical Damage

Thoroughly examine your Pixel device for any physical damage. These include cracks, dents, or scratches around the fingerprint sensor area. Physical damage could affect the sensor’s functionality.

2. Safe Mode Check

Boot the Oppo A18 device in safe mode to determine if third-party apps are causing conflicts. To do that, press the “Power” key with any volume key to access the power menu. Afterward, long-press the “Power Off” option until the “Reboot to Safe Mode” option appears on your device’s screen. Press “OK” to reboot into Safe Mode and test the fingerprint sensor’s functionality.

3. Professional Assessment

If you suspect hardware issues, seek professional help from authorized service centers. A clear sign of hardware issues can be visible damage or the sensor failing to function even in safe mode.

11. Factory Reset as Last Resort

Problem

Did all other troubleshooting methods fail to resolve persistent fingerprint sensor issues? Then, a factory reset might be required to revert the Oppo A18 device to its original settings.

Solution

1. Backup Data

Before initiating a factory reset, ensure that all crucial data is safeguarded. This encompasses contacts, photos, documents, and any other significant files. Use Google’s backup services or third-party apps to securely back up your data .

2. Initiating Factory Reset

Proceed with the following steps to execute a factory reset on your Pixel device:

• Step 1. On your Pixel smartphone, navigate to Settings and access the “System” tab. Here, scroll down to the bottom and tap “Reset Options.”

• Step 2. In “Reset Options,” choose “Erase All Data (Factory Reset)” to continue. Afterward, select “Erase All Data” on the next screen and follow the instructions to complete the process.

Click here


In summary, this article detailed various methods to fix the Oppo A18 fingerprint not working. Diverse approaches were explored, from simple steps like sensor cleaning to advanced solutions like factory resets. However, Dr.Fone stands out among these solutions as a top-tier option. It offers a secure and efficient resolution to the persistent problem of fingerprint failure on the Oppo A18 .

Full Tutorial to Bypass Your Oppo A18 Face Lock?

Your android phone face unlock may be buggy, or the camera may be damaged. It can’t recognize your face. When you try multiple times in such cases, it will lock your device permanently. Are you stuck with a locked phone? And you’re still confused about what just happened. Face unlock may face problems such as

• Face unlock app may be buggy
• Your face unlock settings may be unstable
• Your phone camera or face unlock sensor may be damaged
• Someone else may have registered their face without your permission

Whatever the reason, they are equally big obstacles for you to use your phone as usual; trying to unlock your device can lead to a permanently locked phone. So how do you bypass face unlock?

Follow the guide below to bypass the face unlock settings and choose the best one for yourself.

How To Bypass Android Face Lock by Ourselves?

If you want to bypass face lock by yourself, then different methods can help you. These are all tested and work well.

1. A Picture Possibly Bypasses Face Lock

You can use your photo to manipulate the face lock app. Simply use your photo to unlock the phone, which should work fine. If your phone doesn’t recognize your face from a photo, try again.

If it still doesn’t recognize your face, try a different photo or even change the camera’s lighting settings or the angles to see if that helps.

Anyway, this method is still unstable because of many uncontrollable factors. If everything fails, consider the following methods to bypass the face lock.

2. Hard Reset your phone

To get around the Android lock screen, perform a factory reset. While resetting your phone allows you to set a new password, it also erases all data from your device. This method works like a charm, but it also requires more technical knowledge. To bypass screen lock via factory reset, follow these steps.

Step 1: Turn off your phone and hold the Power and Volume-down buttons simultaneously until the recovery mode screen appears. There are minor variations depending on the brand and model.

Step 2: Select the Wipe data/Factory Reset option using the volume buttons. To confirm the option, press the Power button.

Step 3: Choose Yes > Delete All User Data, then press the power button to continue. When the process is complete, turn on your phone.

So, before facing such awkward cases, like data loss, we suggest you have a backup habit of keeping your data safe.

3. Google Find My Device

Google Find My Device is a service that lets you remotely lock, track, and wipe data from stolen or lost phones. With a Google account and the password, it won’t be complicated to remove any locks on your phone. You can bypass the Android lock screen by following the steps below:

Step 1: Navigate to Find My Device and sign in with your Google account.

Step 2: Your phone receives a notification.

Step 3: Select Erase Device, confirm, and click Erase as a warning pops up on the screen.

Step 4: The factory reset process on your phone begins. When it’s finished, choose My Google Account instead of using your phone as if it were brand new.

Just like the hard reset, after using Google Find My Device, all your data and settings will be erased. Please make everything well prepared before you decide to unlock your device.

Easiest Way to Unlock Your Android Face Recognition Using Dr.Fone-Screen unlock

The methods mentioned above may be hard for you, and you don’t know any technical skills. If you are looking for an easy tool that can face unlocking for you, then Dr.Fone - Screen Unlock is all you need.

Dr.Fone by Wondershare has many useful tools, and Screen Unlock is one of them. It is the easiest and safest method to bypass the Android face lock. It is safe, secure, and easy to use.

The following guide explains how to use Dr.Fone-Screen unlock to bypass the Android face lock.

Step 1: Install and open Dr.Fone on your computer

Step 2: Run Dr.Fone on your PC and select “Screen Unlock” from the tools

Step 3: Select Unlock Android Screen

Please select” Unlock Android Screen” for the rest process.

Step 4: Select device model

Please click the button fitting your phone.

When arriving at this page, we have a lot of options to unlock your device screen for most phone brands, like Samsung, Nokia, LG, OPPO, etc.

Step 5: Enter into Recovery Mode

Here are examples of Samsung phones via its Recovery Mode to unlock your Android device screen.

(Recovery Mode When the Samsung phone with Bixby)

(Recovery Mode When the Samsung phone without Bixby)

(Recovery Mode When the Samsung phone with Home button)

Step 6: Instructions to Wipe Cache Partition

This step in Recovery Mode is the most important to unlock your screen. Please click the buttons as instruction.

Now you can see your device is unlocked successfully

Conclusion

There are various methods to bypass Android face lock, but Dr.Fone-Screen Unlock is the easiest and safest method. Dr.Fone offers Screen Unlock and many other handy tools to help you recover, remove and unlock your Android phone without geeky knowledge. Dr.Fone-Screen Unlock is a step-by-step process, and you do not need to do anything; Dr.Fone will do all you want to do on your phone!