20 Most Recent Casio Cassiopeia E-125 Pocket PC Questions & Answers


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

Casio Cassiopeia... | Answered on Mar 26, 2011


Pretty common problem, and is normally one of three possibilities: 1. Ribbon cable that connects the backlight daughterboard to the motherboard connector has gone bad, or contacts oxidized. 2. Daughterboard itself has gone bad... 3. Power problem or cpu problem not activating upon powerup. Not as likely. 4.The fluorescent tube itself may has blown. The cure: carefully disassemble your 125, clean the ribbon contacts on both ends of the tiny ribbon cable, be careful, it is very fragile. If that doesn't work, find someone who has a E125 and swap out ribbon cables and see that works, that will at least tell you if the cable is bad or not. If that doesn't work, swap out daughterboards. If that doesn't work, sell it for parts on EBay and buy a new one, because anything else will probably be too expensive.

Casio Cassiopeia... | Answered on Dec 27, 2010


i made a video how to fix your dead Casio Cassiopeia PDAs.
AFAIK it works on the following models:

Cassiopeia E-10 (AFAIK)
Cassiopeia E-11 (AFAIK)
Cassiopeia E-15
Cassiopeia E-100
Cassiopeia E-105
Cassiopeia E-115
Cassiopeia E-125

Cassiopeia E-55 (= Japanese Version of E-15)
Cassiopeia E-5xx (Japanese Versions of the E-1xx Series)

Maybe it's also applicable to the EM-500 and EM-505 ...

and read the description pls :)

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

Casio Cassiopeia... | Answered on May 26, 2010


I suspect the battery might be bad. Replacing the main battery may fix this problem, you may want to try with a nokia battery as the voltage is exactly the same as the Casio battery (3.7Volts)

You need to take out the backup battery and put the main battery (the nokia one) in it's holder with a bare wire held onto the negative & positive terminals. If the Casio works with the nokia battery, then you need to buy a new one.

Good luck!

Casio Cassiopeia... | Answered on Dec 22, 2009


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.
After six hours I disconnected the AC charger, installed a new backup battery CR2032, and everything was go.

Casio Cassiopeia... | Answered on Oct 01, 2008


The Casio PDAs will quit charging very quickly if the battery is very, very discharged. If you continue to remove and re-insert the charger into the PDA's power socket, the recharging cycle will last longer and longer until finally the stupid thing will fully recharge its battery.

I have two Casio PDA's and three batteries that were recovered after a bit of tedious struggle to force the charging cycle to complete.

Casio Cassiopeia... | Answered on Aug 26, 2008


leave the backup battery in the PDA and bring it back to life with this how to ;)

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

if that doesn't help you may need to give the battery a little kick-charge for the PDA to recognize it again. the PDA "thinks" there's not battery if the battery voltage is below 2Volt.
to "kick-charge" the battery just get a AC adaptor with at least 5V and 1A (a.k.a. 1000mA) with 2 wires and connect them to the battery pins (with "+" and "-" correct!)

if you have your PDA lying in front of you with the display down and the battery cover opened, the pins of the battery are as following:

left: plus
middle: charging/temperature (not important for hand-charging)
right: minus

connect the wires of the AC adaptor correctly and let it "kick-charge" for about 5minutes (but NEVER let it charge any longer if the battery is getting hot!!!!)

after that, the PDA should recognize the battery again because the voltage is more than 3Volt again.

but don't (!) try to power it up after kick-charging!
the batterys voltage is higher than 3Volt again, but it takes just a few seconds to empty it again if u try that.
it's only for the PDA to "see" the battery again ;)

Casio Cassiopeia... | Answered on Jan 15, 2008


screen went into sleep mode. you can set the time in system manu some where.

Casio Cassiopeia... | Answered on Jan 01, 2008


to need a charger.

Casio Cassiopeia... | Answered on Jan 01, 2008


Try resetting. Use ur stylus and press the reset button for about 3 seconds. See if that works for ya.

Casio Cassiopeia... | Answered on Jul 10, 2007


Casio claims that once a password has been set in your unit it can't be reset without losing all data. You can try resetting and see if that works. Use ur stylus and press the reset button for about 3 seconds.

Casio Cassiopeia... | Answered on Jul 10, 2007


Usually the ribbon cable connection that powers the backlight is the problem.If you remove the four screws in the back and take off the back cover. (note that there are two tabs on both sides of the cover half way up)You can see the white ribbon cable on the left above the battery back housing. Gently wiggle it and see if the backlight goes on. The cable is attached with a small brown insert that holds it in. It is removable so you might be able to get an electronics shop to replace the cable connection or the cable itself.

Casio Cassiopeia... | Answered on Jan 01, 2007


Sounds like you might have a bad cable or something. Did you try plugging ppc into its power pack while using the cable?

Casio Cassiopeia... | Answered on Sep 06, 2005


I doubt it... I mean it is unlikely there is any incompatibility there. Go to your device manager and make sure that your USB ports are installed and configured properly for your USB cradel.

Casio Cassiopeia... | Answered on Sep 06, 2005


If your craddle has DC power input that charges the PDA while in craddle, try setting the power configuration so that when the PDA is on external power, there is no blank screen timeout, and no automatic shutdown (it's in the Settings menu). This way, it won't power down while in craddle, and you won't get this problem you're having.

Casio Cassiopeia... | Answered on Sep 06, 2005

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