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Help Plz... Flash Ng (afx 2.0 Plus)

Started by actronx , Jun 12 2005 12:39 AM

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#1 actronx

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Posted 12 June 2005 - 12:39 AM

hello there
everytime i run my calculator it shows DATA ERROR with DIFFERENT NO every time
now its DATA ERROR 60 .... before DATA ERROR 4C

when i accessed the service menu.. and made a checkup.....

everything is OK

BUT THE FLASH IS NG...
my calc. is AFX. 2.0 PLUS

how can i repair it....

is it a software problem ? or hardware one ???

when i removed thebackup battery the calculator opened with no errors ...runs for mins...then errors apeared again...


any help will be appreciated

bye

#2 octobclrnts

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Posted 12 June 2005 - 04:28 AM

Well, because you took the batteries out and tried again (and it even worked a little), it makes me think that it is a hardware problem. I personally can't give you any hints other than if it still under warrenty, take it to Casio.

#3 CrimsonCasio

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Posted 12 June 2005 - 04:32 AM

try initializing it with the system menu, if that fails send it to casio for repairs.

#4 huhn_m

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Posted 12 June 2005 - 09:40 AM

I had this problem. I sent the calculator in and they told
me that it was a hardware problem. In fact the soldering of the
flash chip was no too good and so they had to do it again.

Since then the calc ran fine.

Just send it in if you have still guarantee. It is the best way. Do only try to solder it yourself if you know what you#re doing. You'll loose warranty and if you fail even the calc ...

Cu Huhn

#5 actronx

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Posted 12 June 2005 - 12:02 PM

well...if it is a soldering problem.... ican do it....
the calculator by the way is out of warranty now :(

so its useless now....id do anything to make it work!...or let it burn.....

by the way how do i intialize it ???


EDIT:

by the way how can i identify the FLASH CHIP IN THE CALCULATOR?

Andy.Davies: Please dont post twice in a row in a short space of time

Edited by Andy.Davies, 12 June 2005 - 01:43 PM.

#6 actronx

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Posted 12 June 2005 - 12:41 PM

ithink this chip is the flash chip ... (29lv800ba-90pftn)

#7 thunderfx

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Posted 12 June 2005 - 12:58 PM

I think you can search on google! Maybe the constructor of the chip gives information about :)

#8 huhn_m

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Posted 12 June 2005 - 04:03 PM

I don't know exactly..

they just said the re-soldered some things and I assume that it was the flash.

if you want to initialize it you have to goe to the hidden test menu and do the "Whole Flash" Flash Test.

On next restart it shows an error (DATA ERROR 80 i believe) and then the flash will be initialized on pressing enter.

This is due to the fact that drive A (system) hast to be copied back from ROM for the calc to work.

Just try it :D

#9 Marco

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Posted 12 June 2005 - 09:14 PM

If you're looking for a doc of the chip you could try http://www.chipdocs.org, too, seems they have nearly everything there :) (I found this page once ago when looking for some descriptions of the CFX 9850GB +'s RAM chip)

#10 2072

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Posted 14 June 2005 - 09:53 PM

The flash is made by Fujitsu and is MBM29LV800TA-70/-90 or MBM29LV800BA-70/-90

#11 Bob Vila

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Posted 03 July 2008 - 06:48 PM

so this topic is quite old. but how would i resolder the flash chip? those connections are pretty small... lol

#12 kucalc

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Posted 03 July 2008 - 10:22 PM

Lol, to solder those really small components you're gonna either gonna need some really good stable hands with some really good eyes with a magnifying glass (or maybe even a microscope), or you gonna need to buy a thousand dollar heat reflow oven...

#13 ECE

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Posted 04 July 2008 - 12:38 PM

You may use an SMD Rework soldering station which utilizes a hot air out of a hand piece, only align the chip-pins to the board and apply hot air from the hand piece; the pins will be soldered to the board. You have to use a sort of soldering flux for clean soldering.
In my region I bought a small "made in china" unit for $51 including the flux, its very handy and reliable.
http://www.gsmserver...ils.php?id=8519

mine is similar to the one in the link; but with one digital display.

#14 Bob Vila

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Posted 08 July 2008 - 04:37 AM

It's not worth it to me to buy a whole new kit that will cost about $100 after all is said and done. I think I'll get the HP50g. What do you all think? Whats the 3rd party apps like for it? And does it have a tutor like program (the reason i love the (a)fx)?

#15 ECE

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Posted 08 July 2008 - 11:24 AM

Its up to you, I thought you may be interested in HW modification so a soldering station may be very handy.
I haven?t tried HP50g; maybe some one will give you an advice.
Regards.

#16 IbmPad

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Posted 08 July 2008 - 11:57 AM

You can try the HP50g with its SDK, which includes an emulator. You can find it here : http://www.debug4x.com/

#17 Bob Vila

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Posted 22 July 2008 - 06:22 AM

well, i'm bidding on an afx on ebay right now. wish me luck! if i can't get it, i'm just going to break down and buy the hp :(

#18 Bob Vila

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Posted 24 July 2008 - 01:04 AM

w00t!!1!oneone... I was able to get one. Only $30 total!

#19 kucalc

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Posted 24 July 2008 - 02:14 AM

Cool, don't know however if the AFX still looks good now these days.

#20 Bob Vila

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Posted 27 July 2008 - 01:04 AM

What I'm more concerned about is functionality. The AFX does everything I need it to, and most importantly, it has tutor and cas, and nobody knows it, so it isn't banned from exams and stuff, lol.
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