Question about Casio Cassiopeia E-125 Pocket PC

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E-125 No Power

I've had a Casio E-125 for 18 months and it turned itself off and would not turn back on. I purchased new batteries and charged them as instructed prior to attempting to restart my E-125. It failed to start. As others have written regarding the same problem I too was able to get it to power on for a limited amount of time by fiddling with the batterings and doing a full re-start. It doesn't maintain power prior to going dead for very long. I'm not sure if I should take this thing apart. I believe it has turned to junk as probably planned. If anyone can offer some help it will be appreciated. Thanks

Posted by Anonymous on

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Re: E-125 No Power

Hello, The E125 and most of the CASIO HPC's have problems similar to this. Unfortunately you will loose any data you have input since your last backup with the solution I am about to give. First, leave the unit plugged in and charging for at least an hour. Next, remove all batteries, main and backup. let the unit sit for a while to discharge any capacitance in the circuit. If possible short the + and - contacts on the unit (NOT the battery). This will discharge capacitance in the circuit. Then, press the reset button. Replace the main battery and press reset again. The unit should power up to factory defaults. Replace the backup battery. You will need to sync with your PC to restore data. If this doesn't work, you may have a completely discharged NiCd or NiMH battery and it will need replacement.

Posted on Sep 06, 2005

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Re: E-125 No Power

I may have the same problem (maybe). Mine does that if I use the charger. So what I do is swap batteries. It 1st happened in Jan. What got it going again was toggling the battary switch to the remove main battery position and leave it there for a little while. I have a seperate BAttery with its own charger and when I dont Plug in the Power Supply to the Em-500 I never have the problem. I was doing programing and had plugged it in and sure enough it started happening again. You might try leaving that switch toggled or remove the main battery over night especially if you have the backup in place. If you have the same problem thats what gets mine going.

Posted on Sep 06, 2005

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Re: E-125 No Power

Are you checking your adapter. i had the same problem with my casseopeia e115. i searched and searched for the battery which even casio doesn't offer anymore. i bought a battery pack which works great w 4 AA batteries but it's bulky and you lose data when you turn off the batteries. i finally went on to discover that my charger/adapter that plugs into the e115 and the serial cradle was scorched by a lightening strike and it was not charging and eventually the batteries DIED!!! I took the adapter to an electronics repair store and for $15.00 they rewired the adapter and it works!!!! it charged the batteries and worked fine.(altho i have to visit them again because i think one of the new wires is bent and i have to position it perfectly to keep charging.) BTW: any one looking for a new casio battery jk210lt...i have a couple to sell! ;-) hope this helps

Posted on Sep 06, 2005

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I had the same problem with an E125 which I brought off eBay that hadn't been used for several months.
I took out the backup battery and put the main battery in it's holder with a bare wire held onto the negative & positive terminals.
When I turned on the charger, I held the other end of the bare wires onto a partly charged Nokia Battery (Also 3.7V internal). The current from this battery was enough to let the Casio start charging.
After two minutes I disconnected the Nokia battery and gently tugged the bared wires free. The Casio kept on charging happily.
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Aug 25, 2007 | Casio Cassiopeia E-125 Pocket PC

1 Answer

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Sep 06, 2005 | Casio Cassiopeia E-125 Pocket PC

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and read the description pls :)

http://youtube.com/watch?v=l0TT5CnbwBQ

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Sep 05, 2005 | Casio Cassiopeia E-125 Pocket PC

3 Answers

E-125 Turns off and won't turn on


This is what I suggest: Get yourself a new backup battery. First backup your Casio. Then install the main battery. Plug the Casio in and recharge overnight. Once recharged, install the new backup battery. Make sure you do not touch the battery with your hands. Use a tissue. This should solve your problem if the Casio is not physically damaged.

Sep 05, 2005 | Casio Cassiopeia E-125 Pocket PC

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