Tips & FAQ

First steps:
  • First you have to set an alternative access mode ("Set password, PIN or pattern").
  • Then you have to train the face recognition engine ("Train face recognition" - you can find some tips below).
  • After you do that, you can check "Enable FaceLock" (and "Use as phone lock screen" too, if you want to use it to unlock the phone - available in the Pro version).
  • If you want to protect certain apps, you can select them in "Locked applications".
  • These are the essentials, you can find many other configuration and customization options (check out 'Visual options' for example)
  • You can always contact us if you have any trouble.



Tips:
    • Train the recognition engine with images taken under different lighting conditions.
    • It is highly advisable to have a front-facing camera and Android version 2.3 (Gingerbread).
    • Train about 10-15 images, under different lighting conditions. You can train a couple more images whenever you're not recognized quickly. Do not train too many images (30-40 max) or performance will decrease.
    • Try to do the training with good, soft lighting, not under the harsh light of a spotlight or in darkness.
    • Try to hold your phone steady so you don't get a blurry image (a blurry image of a face will match pretty much any other face).
    • You can check the image you're training: look at the miniature image at the lower right corner, it's the last detected face.
    • Just one bad training image can spoil the training. Please make sure the lighting is good, not causing the face to be grainy or full of hard shadows and highlights.
    • For more security, you can raise the security level (the default is medium). For better recognition you can train more images or lower the level.
    • If you're in a different environment with very different lighting or you are now wearing glasses, or a beard, you can train a few more images in order to be recognized quickly.
    • Make sure the lens in your phone or tablet is clean, it is something often overlooked. Just like it happens with real-life glasses, if your phone's lens is dirty or has many fingerprints on it, it won't see you well enough to remember you.
    • Contact us if you encounter any issues: contact@facelock.mobi

    FAQ:
    • Q: I do the training step but it doesn't work
    • A: Make sure you have actually completed the training step, set a fallback password and activated FaceLock. It will protect the selected apps (Pro version) or Task manager, Settings, Android Market, and one app of your choice in the free version. Whenever you exit the training without having trained any images, a support wizard will pop up to help you, if you follow it and still have problems please contact us.
    • Q: I see an upside down image or a rotated/distorted image
    • A: Some phones report an erroneous camera orientation. Please go to Camera options (under Advanced options), and select Image rotation to configure your custom adjustment.
    • Q: I encountered some weird behavior, 'force close', or bug!
    • A: We work hard to weed out any remaining bugs. Make sure you're using the latest update from the Google Play store (Android market) and please contact us if you need help with any issues: contact@facelock.mobi
    • Q: Does this app store or save the training pics?
    • A: It stores features extracted from the processed faces, not the whole images. It is not possible to reconstruct the picture or the face properly from the information stored. The information is saved in your device's internal storage.
    • Q: Why does the app only try face recognition once and then goes to pattern / PIN / password?
    • A: It is not trying just once, it is trying continuously and it will switch to the alternative access mode after being unsuccessful for some time. You can configure the amount of time it will wait for recognition (in "Locking options" > "Recognition retry timeout"): if you want the process to be quick, select "short" and it will quickly ask you for pattern/PIN/password if it can't recognize you right away; if you want it to try harder and you don't mind waiting, choose "long". By default this option is set to "medium".

    • Q: Delay lock is not working!
    • A: The delay lock will work while the screen is on; this option is for locked apps while you're using the phone. If you turn the screen off, it will assume you're leaving the phone unattended and anyone could get in, so it always locks when the screen goes off. The rationale behind this is that once you turn the screen on and identify yourself in some app, you won't leave the phone alone for some time and you avoid re-identifying with the delay lock feature (whether you're using FaceLock as a lock screen or not doesn't matter). When you turn the screen off, however, it is assumed that you've stopped working with the phone and the lock re-engages.
    • Q: Why do I have to do both the face unlock and the password/pin or pattern unlock?
    • A: Don't worry, you don't. If you had your phone's password, PIN, or pattern lock set, you need to disable it or it will pop up. Please set it to 'None' (in your phone's Settings, under Security (or "Location and security") -> Screen lock (or "Set screen lock").
    • Q: The camera doesn't work ("Failed to open camera" or black image, or greenish thing) - and you're using a custom ROM like Cyanogen
    • A: Different hardware require some modifications to the Android firmware, which are normally made by the manufacturers. With Cyanogen or other mods, they have to customize the rom to work in many different phones and there are always some issues lingering. Sometimes it's only the camera orientation that hasn't been fixed, you can correct that in FaceLock under Camera options, but sometimes the issues are more serious and prevent using the front camera altogether. Going back to a stock ROM could solve your problem, or maybe switching to other rom.
    • Q: I only get a weird greenish color when trying to train images and I don't see myself (CyanogenMod on EVO 4G)
    • A: There is a known issue with the front-facing camera in CyanogenMod for the Evo (link 1, link 2, link 3). You can try to contact the Cyanogen developers for help. Going back to a stock 2.3.x rom should solve your problem, or maybe switching to other roms apart from CM.
    • Q: The front camera doesn't work (Sony Xperia)
    • A: There is an issue on that phone after Sony's latest update to Android 4.0.4, see here. Apparently apps can't use the front camera.
    • Q: Why does it sometimes lock randomly? or why does the lock screen freeze?
    • A: There are some apps that can potentially interfere with FaceLock, usually launcher/home replacement apps and some lock screen replacement apps. For example, SPB shell, NoLED or Go SMS. We have included some more fixes for this in the latest version, but in some cases we can't guarantee full compatibility.

    • Q: How do I set it to ONLY facelock on the lockscreen? 
    • A: By selecting the "Use as phone lock screen" option and not selecting any apps, it will lock the bare minimum apps (it will lock the application installer only and maybe the ICS task manager while you're in the lock screen so it can't be used to kill facelock and bypass it).

    • Q: Can you add move to SD?
    • A: Applications that are started on boot are executed before the SD card is mounted, so we can't move the app to SD or it wouldn't be able to start on boot.

    • Q: I use my phone's alarm for my daily alarms. However since I installed this app my alarm will go off for maybe 5 seconds and then it gets snoozed automatically.
    • A: There is a problem with some HTC phones, because the alarm is embedded in the HTC sense lock screen, so we don't know when to remove it and when not to, we can't tell the difference. We'll try to find a solution and fix it in a future version of FaceLock.
    • Q: It doesn't work! (and you have an LG Optimus 2X, Motorola Xoom, Motorola Atrix 4G, or other Tegra processor devices)
    • A: We have fixed a bug that prevented Tegra processor based devices from working properly. Please update to version 2.0.5 or newer of FaceLock for apps. This bug was briefly reintroduced in 2.3.0 and quickly fixed in 2.3.1 the day after.
    • Q: My front-facing camera is not working (on Android 2.2 Froyo)
    • A: There is no built-in standard support for frontal-facing cameras on 2.2, but we are implementing workarounds for several phone and tablet models. Upgrading your phone's firmware to Android 2.3 (Gingerbread) is a possible solution for you. If it only works with the back-facing camera, it's probably because you still have Android 2.2 on a phone for which we don't support it yet.
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