Opened to clean mechanism keys fell out , need a visual so i can re place in proper slots. a photo of the keys would be helpful (casioFR-2650A)

Here are some steps you can try to fix the issue:

1. Check the paper: Make sure you're using the correct type of paper for your calculator. The FR-2650A requires 2 1/4 inch (57mm) wide plain paper rolls. If the paper is too thick or too thin, it can cause jams.
2. Remove any jammed paper: Turn off the calculator and remove the paper roll. Gently remove any jammed paper from the paper feeding mechanism. Make sure to remove any torn pieces of paper or debris.
3. Clean the paper feed mechanism: Use a soft, dry cloth to clean the paper feed mechanism. Dust and debris can accumulate in the mechanism, causing paper jams.
4. Check the paper feed roller: Use a cotton swab or soft, damp cloth to clean the paper feed roller. Make sure it's free of debris or dust.
5. Replace the paper roll: Make sure the paper roll is properly installed. The paper should unroll from the bottom of the roll towards the front of the calculator. The paper should be flush against the paper feed roller.
6. Test the calculator: Turn on the calculator and test it by printing a few lines. If the paper still jams, try a new paper roll.

If none of these steps work, there may be a mechanical issue with the calculator. In this case, it's best to contact the manufacturer or a professional repair service for assistance.

For a permanent fix, you'll have to take the door panel apart, drill a hole through the handle and the big plastic door mechanism inside, and then insert a cotter pin. I found out how to do so via a nicoclub.com forum, but the critical photos of the operation seem no longer to be available there.

Try these two sources:

Door handle fell off what the Versa Technical Discussions

Door handle fell off what the

The first link is my notes in Evernote, including the photos from Nicoclub, while the second link goes to the Nicoclub forum on the problem, where at the end someone has added a photo showing you exactly where to drill the holes in the door mechanism.

What does the left over piece look like?

Take it apart and look at the gears. Clean up the gears and timer. make sure dial is all the way down into place.
Check that white clock wires are connected to terminals 1 and 3
WH40 timer is same mechanism as T104R201 except without fireman's switch.
http://waterheatertimer.org/Photos-of-WH40-timer.html
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html

Gene
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If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

RAM might be out from its place. Open the door for RAM present at the back side of laptop and fix the RAM in the slot properly. That should fix the problem.
The RAM might have moved from its place slightly due to shock if the laptop have fell down from some height recently.

There is a square slot on the bottom of the cash register. Near the back center. Inside that square slot if a manual drawer release mechanism. Push on that mechanism with your finger or a small object and the drawer will open.

open the bonnet and place a jumper cable on the starters POS. wire.
Place the NEG. cable from the jumper on any metal structural componant on the vehicle.
use the key fob to 'pop' the trunk.

Hello brandiholler, there are no technical explanation to this, but this may help, place the loose key and center it with the open key slot, press gently until it snaps into place. be careful you may further damage the key slot which may make it unrepairable.

Now if want to eliminate the circuit breaker first unplug the unit remove motor shroud locate the breakers connection and by-pass the breaker and reconnect the unit insert key and see in you have the same results then proceed to the next procedure below, if the unit is work without a hitch then replace breaker
Without knowing the make and model this is a good guess. Now why I say the key switch is that if it is a key you insert into a slot then its engaging the switch mechanically ( my guess you have a mechanical switch). Now if its a magnetic key their is a glass reed switch that is engaged. The only way to find this out is to remove the upper console and if it has a back plate remove that,a mechanical switch 7 out 10 time it would be visually apparent if not you may have to remove the electronics to see it. If you a multi meter remove the switch place the leads on switch spades ( inspect the spades if tarnished then use an erasure to clean the spades) and mechanically engage the switch. Notice any hesitation in switch engaging it may not be making contact internally if so replace the switch.

I Would send the phone back, you could be damaging it even more.