We've all been there - you approach your car or apartment door, confidently reach for your trusty RFID key fob, and... nothing happens! Your reliable key fob suddenly decides to take a nap, leaving you in a bit of a pickle. But fear not, because we're here to help you get back on track when it comes to your rfid-key-fob-stopped-working situation.

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Common Problems and Solutions

Before you start panicking and wonder if your key fob is possessed by some mischievous spirit, let's break down the most common issues causing your rfid-key-fob-stopped-working scenario.

Dead Battery Blues

Is your key fob as lifeless as a zombie in a horror movie?

One of the most frequent culprits for a non-responsive RFID key fob is a depleted key fob battery. Just like your TV remote or smartphone, key fobs require power to function. Here's what you can do:

Solution: Replace the Battery

  1. Find the battery compartment on your key fob. It's usually accessible by prying it open with a small screwdriver or your fingernail.
  2. Remove the old battery carefully. Pay attention to its orientation; you don't want to put the new one in backward!
  3. Insert a fresh battery, ensuring it's correctly oriented.
  4. Snap the battery compartment back in place.
  5. Try using your key fob again. Voila! It should come back to life.
A man holding a key fob.
A man holding a key fob.

Lost Connection

Is your key fob ghosting your car or access point?

Sometimes, your RFID key fob and the receiver might lose their connection. This could be due to various reasons like interference or a glitch in the system.

Solution: Re-Sync Your Key Fob

  1. Consult your user manual for specific instructions on how to re-sync your key fob with your car or access system. It usually involves pressing a combination of buttons or using a specific sequence.
  2. Follow the instructions carefully. Typically, you'll have a limited time frame to complete the process.
  3. Once the re-sync is successful, test your key fob to ensure it's back in action.

Damaged Key Fob

Has your key fob been through a rough patch lately?

Physical damage to your key fob can also be the root of your rfid-key-fob-stopped-working problem. Dropping, water damage, or just general wear and tear can take a toll.

Solution: Repair or Replace

  1. Assess the extent of the damage. If it's minor, you might be able to repair it yourself or seek professional help.
  2. If it's beyond repair, you may need to purchase a new key fob. Make sure it's compatible with your system.
  3. Don't forget to reprogram the new fob if necessary.

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Frequently Asked Questions (FAQs)

Can I use my smartphone as an RFID key fob?

Absolutely! Many modern systems offer smartphone apps that can replace traditional key fobs. These apps use Bluetooth or NFC technology to communicate with your car or access point. Just ensure your device and the system are compatible.

How often should I replace my key fob battery?

Key fob batteries typically last for one to two years. However, it's a good practice to replace them annually to avoid any unexpected surprises when your rfid-key-fob-stopped-working.

Can I reprogram my key fob myself?

Reprogramming your key fob can be done yourself if you're tech-savvy and have access to the necessary equipment. However, it's usually recommended to seek professional help to ensure it's done correctly, especially if your key fob is integrated into your car's security system.


In the world of convenience, RFID key fobs such as HID Global 2050PNNMN-PK25-110315 iCLASS Key II Keyfob have become an indispensable part of our lives. However, when your rfid-key-fob-stopped-working, it can throw a wrench in your daily routine. Remember, the majority of issues with RFID key fobs can be easily resolved with a bit of troubleshooting.