Sharp YO-520 organizer - "data has been impaired" screen

contact SHARP?
google SHARP wiizard oz-892 support.

It takes AAA (LR03) alkaline batteries. Have you put fresh batteries in?
https://www.manualslib.com/manual/151833/Sharp-Yo-520.html?page=25#manual
Have you cleaned the battery terminals?
This unit is - 18? - years old?
Chances of repair are slim

You can buy and replace it on your local shop

Only option is to Clear the memory.

CALL thewizardshop.net 803-736-4382 they have software and sharp organizers.The wizardshop can help you with ALL your Sharp Organizer needs.
Cords,software for Windows XP and 7. They have Sharp OZ-730,OZ-770 and YO-520. They also repair ALL Sharp organizers with a keyboard.
www.thewizardshop.net
803-736-4382

No, sorry. Once the battery is disconnected, all in memory is erased.

I have a a Sharp yo-480. I've fixed sticky keys many times. I back-up data in the organizer first. (yo-480 doesn't have a flash memory) then carefully dissasemble unit. Lift out rubber keypad and use WD-40 to wipe circut board and keypad. It's the sticky residue that makes the keys stick

According to the YO-370 Operation Manual:

What To Do If You Forgot The Password -
When you have forgotten the passord for the SECRET function, you have to delete the password along with all secret data by selecting "DATA DELETION" from the Function menu. Once the password is deleted, a new password can be entered. Follow the procedure below to delete the password (and the secret data along with it).

1. Recall the Function menu (2nd, FUNCTION)
2. Select "3 DATA DELETION", and press v (3, v)
3. Select "3 SECRET DATA". (3)
The delete prompt "DELETE ? Y/N" appears
4. Press Y (To retain the data, press N)
When Y is pressed, both the password and the secret data are deleted, and the initial display for the previous mode in use will reappear on the display.

sharp yo 520

I have lines all thru it.

I was able to solve this problem on my yo-520 by going into the menu, selecting Delete Data, then going to the second page and selecting erase secret data.

Thanks,
Fred