Ezviz Smart Lock Battery Flat, Forgot Password or Won't Open?
Battery flat, forgotten password, dead keypad or locked out after too many wrong tries: what to do with your Ezviz lock, step by step, and how Uncle Thomas can open it, damage-free wherever possible.
- Since 1998
- 24/7 islandwide
- Damage-free first
The short answer: The DL50FVS has a USB-C emergency charging port: if the battery dies, connect a power bank to wake the lock and unlock it. If that doesn't work, call or WhatsApp 9224 9224, any time.
Ezviz smart locks in Singapore
EZVIZ, known for home cameras, makes smart locks such as the DL50FVS that combine a lock, a security camera and a video doorbell, with face ID, fingerprint, PIN and app unlocking.
Ezviz smart lock battery flat? How to open it from outside
The DL50FVS has a USB-C emergency charging port: if the battery dies, connect a power bank to wake the lock and unlock it.
The DL50FVS has a mechanical emergency key.
Ezviz smart lock battery replacement
The DL50FVS uses a 5,000 mAh rechargeable lithium battery. EZVIZ quotes up to about four months between charges with typical face-ID and video use.
How to change the password on a Ezviz smart lock
Passcodes and temporary visitor codes are managed in the EZVIZ app.
How to reset a Ezviz smart lock
A reset removes the lock from your EZVIZ account and deletes users. Do it from inside only.
Repeated wrong attempts trigger a temporary keypad lockout.
Ezviz smart lock not working? Common problems
| Your Ezviz lock | Likely cause | What to do |
|---|---|---|
| Keypad completely dark | Batteries flat | From outside, plug a power bank into the USB-C emergency port. Then replace the batteries from inside. |
| Accepts the code but the latch won't turn | Weak batteries, or a mechanical fault in the lock body | Try emergency power once. Don't force the handle: that's how lock bodies break. |
| Refuses a code you know is right | Privacy mode set from inside, or the wrong-code lockout | Repeated wrong attempts trigger a temporary keypad lockout. |
| App shows offline or can't connect | Wi-Fi, hub or Bluetooth | Use the keypad or fingerprint at the door: the Ezviz lock works without the app. |
Camera and radar features use power. If the battery drains fast, check the motion and video settings in the app.
A typical Ezviz call
This is the kind of Ezviz call we often get: An EZVIZ owner leaves motion video on high and the rechargeable battery runs flat sooner than expected. The power bank in the car has the wrong cable. We open the door, and they adjust the video settings in the app.
What's different about Ezviz locks
EZVIZ's DL50FVS is a lock, camera and video doorbell in one, running on a large rechargeable battery that powers all three.
Tips for Ezviz owners
- Charge the battery before it runs out; video features use power.
- Keep a USB-C cable and power bank for emergencies.
- Store the mechanical key outside the home.
- Use temporary visitor codes instead of sharing your own.
Still locked out?
Call or WhatsApp 9224 9224, 24/7. We open Ezviz locks damage-free wherever possible, confirm the price first and check ID before opening. A failed Ezviz lock can be replaced. Independent, not affiliated with Ezviz. See also: digital lock battery dead · forgot your PIN.
Sources: EZVIZ DL50FVS datasheet. Checked October 2026. Features vary by model: always check your lock's own manual.
Related brands: Lockly · Igloohome · Aqara · Xiaomi · Yew · all digital and smart lock brands
Ezviz Smart Lock FAQs
How do I open an EZVIZ smart lock with a dead battery?
Connect a power bank to the USB-C emergency port to wake it, or use the mechanical key.
How long does the EZVIZ DL50FVS battery last?
EZVIZ quotes up to about four months between charges, depending on face-ID and video use.
How do I change the password on a Ezviz smart lock?
Passcodes and temporary visitor codes are managed in the EZVIZ app.
How much does it cost to open a Ezviz smart lock?
It depends on the model and what's wrong. We confirm the price before we come: WhatsApp a photo of the lock (front and inside if possible) to 9224 9224.
Do you repair Ezviz smart locks?
No, we don't do repairs. We open the lock, and if it's faulty we can replace it. For warranty repairs, contact Ezviz or your retailer.
Locked Out by Your Ezviz Lock?
Call or WhatsApp Uncle Thomas — 24/7, islandwide. We set off as soon as you call.