Why do rockets and shooting stars go off and the numbers 2123 appear on my Fitbit screen

Hi Alan.
not sure if this is what you are asking.
How to sign up for Fitbit in the Fitbit App for iPhone and iPad.

1. Launch Fitbit from your Home screen.
2. Tap Join Fitbit.
3. Scroll through the list and tap on the Fitbit device you have. ...
4. Tap on Set up your Fitbit button.
5. Tap on the Let's Go button.
6. Swipe up or down to set the the big number in the middle to your height.

More items...

How to set up and start using Fitbit for iPhone and iPad ' iMore

https://www.imore.com/how-set-and-start-using-fitbit-iphone-and-ipad
or go to this link.
how to set up my fitbit Google Search

Of course you can do it with a screen protector.
The Guide Of Reset Fitbit Charge HR Complete Guide

Bring your charged fitbit near to the plugged-in dongle or base station. You may need to press your fitbit button or tap it to wake it up. Then, Click the Fitbit Connect icon. Finally, Click Open Main Menu, and then click Sync Now. You may be asked to sign in, after which your fitbit should sync with your account.

If these steps do not work then please review the link below for additional trouble shooting tips.

Why isn my Ultra tracker syncing to my computer

1. Go tohttp://www.fitbit.com/setup/and click theDownload Herebutton to download Fitbit Connect for your Force, Flex, One, or Zip tracker. If you have an Ultra, you should instead followthese steps.
2. Once the download has completed, open the file and begin to follow the onscreen instructions.
   If you are on a Mac, open the dmg file. If it doesn't appear on your desktop, search for "Fitbit Connect" in Spotlight.
   If you are on a PC, run the .exe file from your download location. If it doesn't appear on your desktop, search for "Fitbit Connect" in the Start menu.
3. Once the installation is complete, you will be presented with the Fitbit Connect Main Menu. SelectSet Up A New Fitbit Device.
4. Account Setup:
   • SelectNew to Fitbitif you don't already have a Fitbit.com account.
   • SelectExisting Userto log in using your existing Fitbit.com account.
   • ou will be asked for a few details about yourself. This information improves the accuracy of your caloric burn and distance data. You can later adjust yourprivacy settingsto control which details are shared with others.
   • After filling out your personal information, you'll be asked which device you're setting up. Select the appropriate tracker to continue.
   • Plug the wireless USB sync dongle into your computer (this is the smaller USB device--not the charging cable), and bring your tracker near to it to begin pairing.
   • Tracker Pairing:
     • Force, One, or Zip: You will see a pairing number that appears on your tracker's display once your device has been located; enter this number on your computer.
     • Flex: Follow the onscreen instructions and rapidly tap the device when instructed, then confirm its vibration.
   • After clickingNext, your tracker will connect to your Fitbit.com account. This can take up to a minute.
   • Once your tracker has connected to Fitbit.com, you may be prompted to enter a greeting (depending on which tracker you have). This can be your name or any 8-character combination of letters or numbers.
   • When your tracker is linked with your Fitbit account, Fitbit Connect will notify you and present some basic instructions on using your device.
   • You can now log into your account dashboard to view your synced data.
     You will not need to repeat these steps once they have completed--you can simply login tohttp://fitbit.comto access your dashboard.Or Still having Problem Then follow Us For
     HP Support

You must use the app or Fitbit Connect to set it up. The Bluetooth settings screen on the phone or computer will not work.

:)

It sounds as though you have turned numbers lock on.

One of the function keys on the top row of the keyboard will, in conjunction with the function key (usually labelled "fn" and located on the left hand side of the keyboard often on the bottom row) will enable toggling between numbers lock on and numbers lock off.

I too need this code, if such a code exists. I have found several that control the mute and volume, but none so far control power.

I started getting "Error 2123" recently, and spent A LOT of time searching for the fix. Here is what finally worked:

Find the hidden file "tracking.db3". It's in the hidden folder "ProgramData/Rosetta Stone" under the "C:" directory. Copy and paste it to the Rosetta Stone install directory (Program Files/Rosetta Stone).

Error 2123 should be gone, but now there will be Error 2125. So, in the Rosetta Stone install directory, run the "service_installer" .exe file by double-clicking it.

Resident Evil 4 Unlockables "The Mercenaries" Mini-Game and Characters Unlockable How to Unlock The Mercenaries Mini-Game Complete the main game once Ada Wong for use in The Mercenaries Get a four-star rating in the Pueblo map of The Mercenaries Jack Krauser for use in The Mercenaries Get a four-star rating in the Castle map of The Mercenaries Hunk for use in The Mercenaries Get a four-star rating in the Island Commando Base map of The Mercenaries Albert Wesker for use in The Mercenaries Get a four-star rating in the Waterworld map of The Mercenaries "Assignment Ada" Mini-Game Unlockable How to Unlock "Assignment Ada" Mini-Game Complete the main game once Harder Difficulty In Professional difficulty, everything is the same except for the fact that enemies are alot tougher to kill.
Unlockable How to Unlock "Professional" difficulty Complete the main game once on Normal difficulty Special Costumes After beating the game the first time, when starting a new game or playing a Round Two game, a new option appears that allows for Leon and Ashley to wear special costumes. Leon wears an R.P.D. uniform, Ashley wears pop sensation clothes, and Ada wears her black outfit from her mini-game.
Unlocking the Punisher Pistol When the guy who runs around and sells you upgrades for weapons, he has a secret "quest" for you.
Unlockable How to Unlock Punisher Pistol Search 2 areas of the game for the blue medallions & shoot them (there are 15 altogether). Unlock Infinite Rocket Launcher And Matilda Handgun Beat the game to unlock the Matilda handgun and the Infinite Rocket Launcher. The items will be unlocked for purchase at any merchant if you load up a "Round 2" game save. The weapons come with a hefty price, too.
Unlockable How to Unlock Infinite Rocket Launcher Beat the game Matilda Handgun Beat the game Unlock the Handcannon In the course of the mercenaries game, you can unlock extra characters by completing the maps with a high score, in addition to secret characters, you can also unlock weapons. The total cost of the Handcannon's upgrades is 790,000 pesetas.
Unlockable How to Unlock Handcannon Get a five-star rank with all characters on all stages Unlimited Ammo Handcannon Fully upgrade the Handcannon's firepower, reload, and capacity. The 'exclusive' option then raises the attack power to 99.9 and gives infinite ammo. Chicago Typewriter Unlockable How to Unlock Chicago Typewriter Finish minigame assignment Ada Broken Butterfly In the hall south of the hedge maze there is a locked door. Return to that area with Ashley, piggy back with her and she will unlock the door.
Alternate title screen Unlockable How to Unlock Alternate Title Screen Complete the game once.