staff@slashgear.com (Mark LoProto)
2024-04-18 06:45:23
www.slashgear.com
This is maybe the easiest error to fix. If your Raspberry PI isn’t turning on, chances are your power supply isn’t working. All you have to do here to rectify the issue is break out a different power supply. However, there are power requirements for each model of Raspberry Pi.
How you approach replacing the power supply will be based on the version of Raspberry Pi you’re working with. For example, the Raspberry Pi 4 won’t work with a supply from a Raspberry Pi 3. The Pi 4 introduced a USB-C input with a 5V 3A minimum requirement. Conversely, the Pi 3 had a micro-USB port with a 5V 2.5A requirement. However, the Pi 5 will work with a Pi 4 power supply, despite having a 5V 5A requirement. It just won’t run optimally.
If you’re handy and don’t want to have to plug your Raspberry Pi in, you can rig a LiPo battery as an alternate power source. It’s far from an official fix, and, as YouTuber Antalz shows in their how-to video, it can get a little complicated. Then again, the steps needed to convert your Pi into a more mobile unit may be worth it, depending on the application.
Sticking with conventional power supplies, though, you have options like with GeeekPi’s 27W, 5.1V 5A adapter.
Raspberry Pi does have a red PWR LED indicator, which provides the following basic indicators:
- Consistent: Powered and operating
- Blinking: Voltage below 4.64V
- Off: Insufficient power to turn on