学生贡献的维基
来自我们教育项目的一支很棒的学生团队制作了这个维基页面。
Device Will Not Turn On
Tablet will not display anything when power button is pressed.
The Battery Has No Charge
If the tablet does not turn on, most likely the battery has no charge. Plug the power adapter into an outlet and plug the the tablet into the power adapter. If the tablet still does not respond with a display, a new power adapter may be necessary.
Software Bug
If the tablet is charged but still will not turn on, hold the power button and volume UP button. A menu named “Android System Recovery <e3>” will appear. Scroll through the menu using the volume buttons and select “wipe data/factory reset” using the power button. Note that any photos and downloaded apps will be removed.
Faulty Battery
If the tablet does not turn on and fails to respond to button presses or screen touches, the battery may be faulty. Follow this guide to replace the battery.
Frozen Screen
The screen shows no signs of activity and is unresponsive to screen touches.
Stalled Program
A running program may have encountered an error which prevents inputs from being received and outputs being displayed. To fix this issue, press on the home icon to return to the home screen, then open the recent apps list to remove the program. If the home icon is not visible, that means the program is in fullscreen mode. Swipe down from the top of the screen or swipe up from the bottom of the screen to reveal the navigation buttons.
Operating System Error
This is a more severe version of the stalled program above. Instead of a program, the android operating system may be at fault. In this case, press and hold the power button for about 8 seconds to reset the tablet. If that remains unsuccessful, insert a paperclip into the reset hole located on the back of the tablet.
Touchscreen Is Slow or Inaccurate
Tablet responds slowly or incorrectly to touchscreen inputs.
The Screen Is Dirty
Wash and dry your hands. Wipe the screen using a lint-free cloth. If the screen has a stain, lightly dampen a portion of cloth and gently scrub the spot. Be sure to dry the screen and avoid getting moisture in any openings.
Too Many Programs Running
If the touch screen responds slowly, clear some RAM for the tablet by closing unused apps. This should increase the tablet’s response speed.
Software Bug
Restart the tablet. This should clear any software issues.
Touchscreen Needs Recalibration
Turn the tablet off. Boot into “Android System Recovery <e3>” by holding the volume UP button and power button simultaneously. Scroll using the volume buttons and select “reboot system now” using the power button. Place the tablet down and do not touch it. The tablet will automatically shut down. Restart it to see if calibration was effective.
Damaged Digitizer
If no other solutions work, the digitizer may be damaged. Replace it using this guide.
Rear Camera Not Recording Properly During Skype Calls
The tablet will not display videos or images properly from the opposite side during Skype calls, video calls, or other camera displays.
Poor Wifi Connection
The most probable cause for the rear camera to record improperly is poor Internet connection. You may use a speed test app to check the results of your connectivity on Skype but to improve your connection, you will need to disconnect and reconnect to the Wi-Fi. On your device, tap System Settings, Wireless & Networks, and Wi-Fi. Tap “Forget” on the network you’re connected to and reconnect.
Incompatibility with Current Skype Version
Make sure that your version is compatible with the Skype version that you have installed. Check Google Play for more details. Make sure to update to the newest version of Skype. Otherwise, try to find the correct version for the tablet.
Wet or Damaged Lens
If you have a wet lens, you may need to use pressurized air to remove excess water. Another easy solution is to leave your tablet in a bag or container of rice overnight to absorb the moisture trapped inside. If the lens is broken or cracked, it will need to be replaced. You will need this guide to replace the rear camera.
Microphone Not Registering Sound
Tablet not registering sound input through microphone.
Microphone Is Blocked
Make sure nothing is obstructing the reset/microphone opening, such as screen protectors and other tablet accessories.
Voice Search & Voice Action Not Turned On
To activate Voice Search & Voice Action, tap the microphone icon on the top left corner of the screen. Say “Google” and your tablet will analyze sound picked up by your tablet in intervals of a few seconds or less.
Third Party Application Interference
Close or delete third party applications to minimize interference. To delete apps: Press & hold the icon until an “X” pops onto the screen, then drag the icon into it.
Bluetooth Interference
Bluetooth may interfere with the microphone connection. Go to Settings → WIRELESS & NETWORKS → Bluetooth, and slide the Bluetooth to OFF.
Software Malfunction
Perform an audio test with the voice recorder application, then playback the clip to test the audio. If the audio is not clear and you hear no sound then continue to Factory Data Reset. To perform Factory Data Reset: Go to Settings → BACK-UP & RESET → Set preferences for BACK-UP & RESTORE, AND PERSONAL DATA.
Network and Service Error Messages
The tablet is unable to connect any WiFi hotspots
Distance from Wireless Router
It may be that you are too far from any wireless routers. Move closer to the router you have chosen to receive a strong signal reading from your device. Signal strength can be seen at the top-right of the device and also in the device’s Settings.
Environmental Obstructions
Note your location and the location of the wireless router. If you are in separate rooms then try to get into the same room as the router. Signals passing through walls are often weaker. If you are underground and the router is aboveground, chances of getting a signal is quite slim. It is best to be on the same level as the wireless router.
Wi-Fi Is Not Turned On
The device’s Wi-Fi may not be on at all. To turn on the device’s Wi-Fi, go to Settings and click on the Wi-Fi toggle at the top-left of the settings screen. The Wi-Fi toggle should now be blue and switched to the on state.
Wi-Fi is Password Protected
A Wi-Fi hotspot may have a password to protect others from connecting to it. Go to Settings and check the Wi-Fi icons to determine whether the hotspot has password protection. A password protected hotspot has a lock next to its Wi-Fi icon and will prompt for a password when connecting to it. Enter the correct password or the device will keep displaying network errors.
29条评论
can you please explain why when i use my apps the updates keep showing up on my screen when i have not used the app before i only had the tablet foer a year and it looks as if someone has gone in and changed the certificate number on the system and i want the popups of updates to stop showing
deborah parks - 回复
So I turned it on and off and I get the dogs but it just only freezes
How do I fix it ??
sheila - 回复
Ican turn it on but it would not swipe up or down
Trudy Finney -
If I'm playing a game,my tablet stops&starts over in the middle of the game.how do I stop this?
jeromejackson490 - 回复
What a surprise, there is a circuit board under the Battery which can cause screen dropout……I installed a cloth damper over the Battery to reduce movement of the Battery.
joeaamar - 回复