Question about Coby Electronics - Others
Need to know how to open the cover on a Coby MP725-4G mp3 player. I feel that there is a loose solder joint at the earbud plug-in.
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Posted on Jan 02, 2017
There should be a lock/unlock button on the opposite side of your mp3 player other buttons. Slide the button to the left, and it should unlock. I hope this helps.
Posted on Jan 27, 2008
If your battery goes COMPLETELY dead, which it will do if phone is not turned OFF and not used for a long period of time, you will need to JUMP START it using you OEM SMT-5600 AC charger. Other AC chargers will not work for this purpose and neither will a USB port.
You can JUMP START the battery using a USB port by cutting off a USB cable to expost the red and black power USB PORT power pins 1 and 4. Remove your SMT-5600 battery and while the modified USB cable is plugged into your USB PORT, hold the BLACK wire to the negative (-) terminal and the RED wire to the positive (+) terminal for about a minute. Replace the battery in the phone and connect the phone to a USB PORT using a standard USB cable. The SMT-5600 charging light may not register for a while, but will eventually light amber to show it is charging, assuming your phone is recoginzed by your computer.
Note some mini USB cables DONOT carry the USB power leads through to the phone, only data. If you have a very thin USB cable, be suspicious the power leads are not being carried in the cable.
Since the USB PORT power is limited to 100ma it cannot hurt the battery, but will insert enough current into a totally flat batter to cause the battery to register a voltage large enough to alllow USB PORT charging, typically 3.7VDC.
Posted on Jun 08, 2008
The same thing happened to me. Have you tried resetting it? Open up a paperclip and poke it in the back hole. The mp3 should reset. If this doesn't work, you are going to have to reformat it, although I did not have to do that so I don't know how.
Posted on Feb 13, 2010
SOURCE: Coby MP-C7095 Won't turn on
On my Colby player there is a small reset hole in the back. Mine has sometimes just stopped playing and shuts off. If you use a small wire (paperclip works well) push it in and reset it.
Posted on May 20, 2010
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