How to Fix a Failed ETC Tag by Yourself?

[MaliaMarie]

Methods to fix a failed ETC tag by yourself: 1. Most ETC devices will not detect whether they have been removed when out of power, nor will they become invalid. You can detach the ETC tag; 2. Press the electronic tag firmly with one hand, then use a wallpaper knife to cut the double-sided tape connecting it to the windshield. During the process, ensure the ETC anti-tamper switch is pressed firmly. After removal, theoretically, you can use 502 glue to block the anti-tamper switch; 3. Use a pry bar or a small flat-head screwdriver to open the electronic tag casing, remove the ETC battery, and replace it with a new 18650 lithium battery; 4. Solder the positive and negative power wires with a soldering iron, then close the ETC device cover; 5. Reattach the electronic tag to its original position on the windshield and turn on the ETC device power switch. If the indicator light turns on, it means the device has returned to normal. There is no strict requirement on how often to charge the ETC. For solar-powered ETC devices, it is recommended to charge them every 3 months if not used frequently to avoid affecting the battery lifespan due to self-discharge.