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Note: This troubleshooting page covers only the V577 model of the phone. Earlier and later models may behave differently.

Phone won't turn on

Your phone will not turn on.

Improperly Installed Battery

Your battery may not be properly connected to the phone. Check the battery connection points to make sure that the connections are not obstructed, and then make sure that the battery fits into its slot without issue. You may want to reference our battery installation guide.

Bad Charger

Make sure that the issue is not the charger. If your charger's head or the charger socket is dirty, try cleaning it out with a tissue or Q-tip. Try using a different charger to charge your phone if that charger is still not working after beaning cleaned.

Dead Battery

The battery may have been dropped, soaked in water, bent, leaking acid, or otherwise rendered unusable by age. It must be replaced with a less damaged battery. Instructions to do this can be found in the battery guide.

Broken power button

The button may not be working properly. Check to ensure the button is not jammed. If not jammed, the connection to the button from the logic board may be in need of repair or replacement.

Logic Board may be damaged

The phone's logic board may have suffered damage. If this is the case, you'll need to repair or replace this component. We recommend you use our logic board guide.

Bad/No Reception

Can you hear me now?

Location

You may be in an area with poor reception.

Broken Antenna

Your antenna may not be properly connected, or may be damaged. Try looking at or cleaning out the connecting point to the antenna using the antenna installation guide.

Won't Open/Close

Your phone has been turned from a flip phone into a brick, or at least won't close all the way.

External Case

If your phone has an external case that covers the interior screen and keyboard, it may be preventing you from closing it all the way. Simply remove the case to reduce it to its original size.

Broken Hinge

Your phone tends to "stick" open or closed. This may result from too much friction in the phone's hinge, or may be the product of the hinge breaking all together from abuse. You may need to replace that part of the casing to properly fix this issue.

Other Case Problems

If the case is bent or cracked in any way, this may affect how the phone closes (among other things). The case itself may need to be replaced to correct this. Depending on what part of the case is damaged, looking at the rear casing or faceplate guides may help you determine what needs to be fixed or replaced.

Keypad Not Responding

You keep trying to enter numbers but nothing is happening

Phone Locked

Your phone may simply be locked. Try to unlock the phone accordingly.

Jammed Key(s)

One or more keys may have become jammed. The easiest fix for this is to look at our phone keyboard installation guide.

Bad Connection

The possibility exists that if you can't input numbers via the number pad, then there may be a break in the connection from the keypad unit to the logic board. This is relatively unlikely, but if it happens you'll need to look into repairing the connection. You can open up and look at the connection yourself using our phone keyboard installation guide.

Screen Appears Black, Faint, or Cracked

You can barely make out what it says in a well lighted area, or can't read the screen at all.

Bad Back Light

If there is no evidence of physical damage to the screen, then the back light for your phone may have broken. It can be replaced.

Broken Screen

The screen itself may have cracked or broken in some way. The screen may need to be replaced before the phone is usable again. For instructions on how to replace the screen, see our screen installation guide.

Bad Connection

There are several possible connection issues for each screen. If the hinge is also damaged, then the wires that run from the logic board to the screen may also be cut. Alternately, the wiring that runs to the back light may have been cut. The cable that runs to the main screen is quite large, and a quick inspection with help from our screen installation guide should be able to tell you if the connections are working properly.

Loses Power/Turns off on its own

You turn your phone on, but it refuses to stay on for very long.

Old Battery

Batteries like those used by this model of phone tend to hold less of a charge after about 300-400 full charge- cycles. If your phone isn't holding a charge for as long as it used to, this may be normal. Your battery may simply need to be replaced with a newer one. See our battery installation guide for details on how to do that.

Bad Connection

If your battery isn't the issue, the problem may be with a bad connection within the phone that causes it to use more power than normal. A short across something other than the logic board might cause this to happen. We recommend checking connections to the battery for frayed wiring.

Camera Not Working

When you try to use the camera, you can't get pictures of anything, or can't even take pictures.

Lens Obstructed

The lens on this phone is slightly recessed into the case, which allows it to be covered or blocked easily. First check that your fingers aren't in front of it. If that isn't the issue, try cleaning it out with a cotton swap or a soft fabric.

Bad Connection

If your camera simply isn't working at all, it may not be connected properly to the logic board or battery. To check the connections, reference our camera guide.

Camera Damaged

The camera lens or flash may be damaged in some way. Check the lens and flash for external damage. They may need to be replaced.

Can't Hear/Be Heard

You can hear them but they can't hear you, or vice versa.

Check Your Reception

Reception is often the reason that they can't hear you. Check both of your phones' receptions to ensure that the call is actually going through.

Volume Settings

Make sure your volume isn't turned all the way down for calls.

Speaker/Mic is Obstructed

Something may be in between you and the speaker or microphone, muffling sound. Check by blowing air into them to remove dust, but avoid doing so while still on the phone with someone.

Speaker/Mic is Damaged

The speaker or microphone on one end may simply be broken, and needs to be replaced. The microphone is located on the logic board, and replacing it is beyond the scope of existing guides at the time of writing.

Phone Does Not Vibrate/Ring

You can't tell that a person is calling you unless you're looking at the phone when it happens.

Check Ringer Settings

If your ringer is turned all the way to silent, you won't be able to tell when you receive calls.

Bad Ringer Speaker

If you can hear the ringer when the phone is open, but not when closed, it is because the external ringer speaker is broken or disconnected.

Bad Vibration Unit

If all of the ringer settings except the vibrate setting, then the vibration unit may be damaged or disconnected. You can access the vibration unit by following the camera installation guide. The unit is adjacent to the camera.

Bad Logic Board Connection

If there is simply no ring or vibration when your phone is receiving a call either when closed or when open, then it may be that the connection to the logic board between the vibration cell and ringer speaker had been severed.

Alex Georges

Membre depuis le 10/02/10

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Cal Poly, Team 7-50, Amido Fall 2010 Membre de l'équipe Cal Poly, Team 7-50, Amido Fall 2010

CPSU-AMIDO-F10S7G50

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