NOTE that SD card slots have a limited lifetime (number of removals and insertions). If it still doesn't work, then delve a little further: The way to diagnose this is to try it with a 2.5A power supply. It is simply more likely to just not work. Then: It is exceedingly rare for a Pi to be actually damaged by use of an insufficient power supply. Especially if you have USB devices that require power. Yes, I agree with your approach of obtaining a 2.5A 5V power supply for the board. Sometimes you will want to actually monitor the 5V pin with a multimeter to see if it is telling you the truth. It usually means the regulator circuitry is getting enough power, even taking into account the loads imposed by the processor and USB devices. The red light being on is definitely a good sign, however it may not tell the whole story. I've called customer service of the online store from which I purchased my Pi and they confirmed it looks like the Pi itself has a failure and I'm going to return it. I tried my SD card with his Pi: it works fine.I tried his SD card with my Pi: still no boot and no ACT LED blinking.I tried his power supply with my Pi: still no boot and no ACT LED blinking.If I get a proper power supply, is there any chance for my Pi to work again? Is it possible that it's been permanently damaged by using an insufficient power supply? UpdateĪ friend of mine has a Pi 3 (not +) with a proper power supply. It was giving me the thunderbolt sign from time to time though. Is it a possible cause of this kind of issue? I had used this Pi a couple of times before with the same power supply and apparently it was working fine.
I used my phone charger but it's not a 2.5A as it should be. I now have learned that I don't have a proper power supply. I don't get any display through the HDMI port. The red power LED is on but the yellow ACT LED does not blink.
I formatted the SD card and put NOOBS 2.8 but it still won't boot.
My Pi 3 B+ suddenly stopped working while I was setting up a GPIO connection to an LED through a breadboard and it won't boot anymore.
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