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Top Student
Posts: 6
Member Since: ‎10-05-2013
Message 1 of 12 (1,037 Views)

HP50g?

When I turn on my new hp50g after it has been off for a while,  I will see a dark box fill the screen momentarily before the stack shows up,  is that normal? 

 

I made this video:

 

 

 

it only comes up after the calculator has been off for 30 seconds or longer.

 

is it a spalsh screen

 

 

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Teacher
Posts: 55
Member Since: ‎05-30-2013
Message 2 of 12 (974 Views)

Re: HP50g?

hello,

 

It is not a splash screen... Sorry, but I have no clue what it might be...

 

Do you have an OFF override program in your calculator that might be displaying it?

 

Cyrille

I am an HP Employee
Teacher
Posts: 158
Member Since: ‎03-10-2013
Message 3 of 12 (967 Views)

Re: HP50g?

try restore factory settings

Professor
Posts: 2,196
Member Since: ‎02-17-2015
Message 4 of 12 (940 Views)

Re: HP50g?

Hi!, dougjgray:

 

Welcome, to Forum!.

 

Have you any SD inserted into your HP50G, with many data ?. If yes, this is, your problem. The delay, is correct.

If not, try with ON+F1+F6 or put clip point int RESET orifice.

 

 

HP, Obsession Reinvention !.

Rate whom you dedicated your time. It's something that never recovered.


Top Student
Posts: 6
Member Since: ‎10-05-2013
Message 5 of 12 (932 Views)

Re: HP50g?

Hi

 

I do have a card inserted with a alot of stuff,  the card came from my old 49g+,  but the box comes up even when the card is not installed.

 

I did the On-F1-F6 reset and still there.

 

until I did the reset there was a warning (Bad Card Data) when I did On-F3 now its gone so the reset fixed that

 

I also re-installed the firmware 2.15, so it must be a hardware thing,  

 

kinda strange but it doesnt seem to affect anything else on the calculator it functions ok so far.

PhD Student
Posts: 775
Member Since: ‎08-10-2010
Message 6 of 12 (911 Views)

Re: HP50g?

Hi,

 

You can try creating a "clean" HP-50g.

 

Backup all data.

 

First go to the Filer, go to 2:FLASH and delete (purge) ALL items.

(Note, none of the resets delete flash and re-installing the firmware is not guaranteed to delete flash).

 

Then do an ON+F1+F6 reset, answering NO to "recover data?".

 

If the problem persists it could be a bootloader or hardware problem.

 

Regards.

_________________________________________________________
Note: I do not work for HP, I just like playing with calculators :-)
PhD Student
Posts: 775
Member Since: ‎08-10-2010
Message 7 of 12 (884 Views)

Re: HP50g?

Hi,

 

Purging all files in flash will also remove the Equation Library and Periodic table.

 

These can be put back manually. You should find the necessary files with the OS 2.15 zip file:

EqnData.lib

EqnLib.lib

prtbl.lib

 

If you need these libs or further help putting them back on the 50g, feel free to PM me.

_________________________________________________________
Note: I do not work for HP, I just like playing with calculators :-)
Top Student
Posts: 6
Member Since: ‎10-05-2013
Message 8 of 12 (866 Views)

Re: HP50g?

I tried all the options to get it back to factory state,   and deleted the flash mem and the mem and flash Are completely empty,  so it must be a hardware issue,   I wonder if it means the calc will fail,  I can live with the square.  I got it on Amazon for $73 maybe thats why it was cheep maybe there was a bad batch. 

Teacher
Posts: 158
Member Since: ‎03-10-2013
Message 9 of 12 (849 Views)

Re: HP50g?

If it fails you could, in the last resort, disassemble the unit, clean all the internal connectors (to the keyboard, lcd etc) with isopropyl alcohol, and put it together. I saw on youtube how to disassemble 50g. 

PhD Student
Posts: 775
Member Since: ‎08-10-2010
Message 10 of 12 (841 Views)

Re: HP50g?

Hi,

 

If you wish to go the route of opening the 50g (this may invalidate your warranty!!!), here's how:

 

Remove main and backup batteries.

 

Remove the screen cover using a suction cup:

http://hhuc.us/2006/dust/

 

Take out the two screws at the top of the screen.

 

Carefully pry open the 50g around the edges, I use the following tool:

 repair-tool.JPG


(can be purchased as "mobile phone repair tool")

 


Once open, take care with the battery and speaker wires.

 

NOTES:

The screen is connected with a heatseal connector and not user serviceable. Any damage to the strip or connections will likely render it irreparable and unusable.

 

I think it is unlikely that the disassembly will correct the fault.

 

NOTE: DISASSEMBLY CAN INVALIDATE THE WARRANTY.

 

IF IT IS IN WARRANTY THE FIRST AND FOREMOST OPTION IS TO SEEK A REPLACEMENT.

_________________________________________________________
Note: I do not work for HP, I just like playing with calculators :-)
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation