Question about Canon Rebel XT / EOS 350D Digital Camera

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Errot 99 Error 99 flashes when I click. I have changed the main battery and the small lithium battery but the problem still persists. What must I do?

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Hi Rexveg, there is a good solution in Fixya. You just have to clean the lenses with a pencil eraser. Here is the link to that thread: Good luck

Posted on Jul 02, 2007


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Posted on Jan 02, 2017


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My nextbook only works when its plugged in but its at 99% battery how do i fix it?

Battery is shot and the 99% is a false reading. Send it in for repair.

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Sony Cybershot DSC-W55 Flash Error Code

1. Turn OFF cam
2. Remove the battery or the power supply
3. Turn the switch to CAMERA for about 30 sec
4. Turn the switch to OFF
5. Install the battery or power supply
6. Turn the switch to MEMORY
7. Open the LCD cover and press the RESET button ( small inner button )
8. You will be prompt to adjust date/time. Do it
9. Take some pictures

Mar 24, 2008 | Cameras



The headache that is "ERROR 99".
The common, works for everything, general fault code.
Doesn't tell you alot in the manual, except consult your nearest dealer...

So, what does it refer to??
Well, Your camera works to a program and parameters and if one of these goes down and the cause cannot be isolated by the software then a fall back, general, fault code will apply. error 99..
If its a lens issue with communication then try a different lens to isolate the fault. Clean the contacts with lint free cloth. Don't use solvents as the contacts are gold plated and solvents will remove the plating and then you will be in trouble..
Error 99 could mean anything so try to isolate the fault by adjusting settings etc or replacing the batteries (main battery and c-mos battery).
Finding out what,where, why and when is how I start with Error 99 so as much info as possible.
Power loss/drain is a usual common fault. Mainly to do with the flash.
It won't pop up, won't fire etc..
The "Busy" sign is the give away. You press the shutter button and the busy sign flashes (sometimes for ages and then still nothing) Its trying to charge the flash but there is a problem with the circuit or components. Whilst this is happening power is being diverted from other circuits and causing more issues..
There could be thousands of reasons why.
Replacing the flash capacitor has always worked for me. It's a battery with an extremely fast discharge rate and charge rate. It wears out...Quicker than you think.
Don't forget everything made today is from the cheapest manufacturer. made with cheap materials for the disposable, throw away world of today.

on Apr 10, 2009 | Canon Eos Cameras

1 Answer

Wont power back up

take out the small battery lithium from +3vdc and measure it, it is lower replace, and clean the contacts, control the RAM, for many different opeation. and try again.
If the problem persist you have problem with the power supply, replace it.
God bless you

Jul 14, 2013 | Dell Dimension 4600 PC Desktop

1 Answer

E machines d440 no desplay

restart the computer and HOLD the CTRL or FN +f11 or f12 depend of your mark, go to restore factory default and ready
However if the problem persist, take out the small battery lithium inside measure the voltage +3vdc, if the voltage is lower replace, and clean the contact, and put the battery again, and restart and see what happen all data must be restore,since the battery control the memory RAM.
If the problem persist you have a board video/lcd faulty. go to the repair shop for fix it.
God bless you

Jul 13, 2013 | Computers & Internet

1 Answer

The lens on camera doesnt work

Most of the lens issues due to mechanical problem. some of the causes are dropping the camera.
Hard shake like keeping the Camera in the hand while jumping through steps, Moisture condensation, Insufficient battery.. etc If If you feel that the issue is not with the above reason, try initializing the Camera. To initialize the Camera, please use the Initialize option under the setup 1 or Main Settings 1 Menu.
If the issue persists, perform a power reset of the Camera.
Performing a manual power reset Turn off the camera. Remove the battery pack. Remove the button-sized lithium battery. Allow the camera to remain without power for 30 seconds. Reinsert the button-sized lithium battery. Reinsert the battery pack. Turn on the camera. If the issue persist, service is required.

Jan 07, 2011 | Sony Cyber-shot DSC-W110 Digital Camera

1 Answer

Flash not working error sign E 91;01 on the lcd screen model dscw110


The E:91:01 is the self diagnostic code display of the Camera which indicates the symptom of the issue. This can easily be identified with the help of a authorized service technician.
The E:91:01 code indicates the abnormality of the Camera when the Flash is being charged. Normally this can be resolved by some normal troubleshooting steps and if not changing the Flash unit.
Try recharging the battery in the Camera to Full and then power resetting the Camera. To power reset the Camera, remove the batteries from the Camera, press and hold the power button of the Camera for 30 seconds and then re-insert the battery pack after 1 minute. If the issue persists, try INITIALIZING the Camera. To Initialize, press HOME, select SETTINGS--> MAIN SETTINGS 1-->INITIALIZE-->OK
If the issue persists after resetting and initializing, service may be required to resolve the issue with the Flash unit

Thanks for using FixYa

Dec 04, 2010 | Sony Cyber-shot DSC-W110 Digital Camera

1 Answer

I have canon 450 d i face the problem error 99 if i open flash it showing error 99 give me answer

error 99 means flash is stuck . pop the flash and when it clicks, you have to smack the side of the camera to make it pop open

Nov 23, 2010 | Canon EOS 40D Digital Camera

1 Answer

I put new lithium triple aaa batteries in my TI-83. Nothing happened . days later it turned on worked for a little while then stopped. would it help to change the round lithium battery? Do you know what...

The button cell backup battery keeps the memory electrically refreshed when the calculator is turned OFF. The necessary power for regular use is supplied by the 4 AAA batteries (main power). That nothing happened when you put in a fresh set of (expensive) lithium batteries may be due to the screen being too dim to see anything.

If the calculator displays RAM CLEARED each time it is turned on, it may be due to a depleted backup battery. The battery model number is CR1616 or CR1620. On my TI84PLUS the backup battery is of type 303 (Sony) or SR44SW (Maxell).

Sep 05, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Flashing Light

Hi there.
That's the battery that keeps the time and date and is located inside the camera itself or is in a hidden compartment.
As soon as you change the internal battery the error message will disappear.

Good luck and thanks for using FixYa!!

May 09, 2009 | Canon MV850i Mini DV Digital Camcorder

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