Skip to main content
Student-Contributed Wiki

Student-Contributed Wiki

An awesome student from our education program made this wiki. It is not managed by iFixit staff.

Apex TM785CH Troubleshooting

Apex TM785CH 16GB Tablet troubleshooting guide.

The Device Won't Power On

No matter what you do, the tablet will not turn on when the power button is pressed.

Dead battery

Plug the device into a wall outlet or computer. Check for the battery icon to appear on the screen after a few minutes. If the battery icon does appear, press and hold the power button for several seconds to power on. If the icon does not appear, consider replacing your battery.

Faulty charger

Try the charger in another outlet. If it does not charge the tablet in any outlet, consider purchasing a new charger.

Frozen device

Perform a factory hard reset by pressing and holding the volume up + volume down + power buttons. Release when the device restarts.

Faulty Battery

If the battery appears to be the cause of the problem, consider replacing the battery.

The Power/Volume Buttons Do Not Function

When depressed, the buttons do not cause anything to happen.

Stuck buttons

To begin, open the tablet. If the buttons do not pop back into place automatically, try to loosen them by moving them around gently.

Faulty buttons

The buttons are likely worn out and will no longer function. Replace the defective buttons.

The Device Will Not Charge

The battery does not charge when plugged in, but remains dead or dying.

Faulty battery

Check the plug and the charger to make sure that they are both working properly. If everything else works properly, then replace the battery.

Inconsistent connection

Disassemble the tablet and push the charging port down until you hear it click back into place or until it no longer moves around when touched.

Problem with the circuit board

There may be a problem with the circuit board. If so, consider replacing the circuit board.

The Device Is Functioning Slowly or Will Not Respond

The device is not responding as quickly as it should be.

Slow internet connection

Connection could be slow due to your personal router. Disconnect the device from the WiFi connection, reboot your router (usually by just unplugging, waiting 30 seconds and plugging back in), and reconnect the device. If this does not work, consider changing the router channel that you are currently using.

Overwhelmed device

If the device is continually freezing, leave the device alone for 15 to 20 minutes. Make sure to close all of your apps so nothing is running in the background. If this does not fix the problem fully, turn off the auto-sync function. You can also turn off the GPS function to increase speed of device.

The Device Produces Little to No Sound

Applications and music are not audible.

Incidentally muted

Unmute the device by depressing the volume up button a few times until sound is produced.

Faulty speakers

If sound is still produced while using headphones, you may need to replace the speakers.

Shifted speakers

If a crackling sound is produced, the speakers may have been moved. Disassemble the device, and reposition the speakers to their original placement.

Broken volume buttons

If buttons are constantly depressed and cannot be pressed down or there is no response from the device when they are pressed, consider replacement.

One Comment

My tablet will power up, however the touch screen does not respond at all. It did get knocked off the dining room table onto the linoleum floor. It did work last night, but this morning it does not. Help me please.

craig marschall - Reply

Add Comment

View Statistics:

Past 24 Hours: 0

Past 7 Days: 3

Past 30 Days: 36

All Time: 3,491