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I am new to raspberry pi and I recently decided to get RPi 4B. Anyways, I was doing a small project and when I finished, I pulled the jumper wires from the breadboard and the wire connected the GND and 5.0v touched which caused the RPi to reset. Now, I don't own a monitor nor keyboard nor mouse, so I just use a VNC server on my laptop. When the 2 wires touched the VNC server got disconnected, so i waited for the RPi to boot up but the LED was solid red and the ACT was solid green.

I searched this forum for help but all I found that the polyfuse just needs time to heal, but i just learned that the RPi 4B doesn't have a polyfuse, It only has an OVP diode.

It's been a couple hours and still nothing, I tried reinstalling raspbian and even tried a new SD card, so is it dead?

PS:Sorry for post being so long. I just wanted to give you all the details

Thanks in Advance

Duck Dodgers
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WarHawk
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2 Answers2

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Your RPi4B is dead. The fix will cost somewhere between £35 and £55 depending which model you've shot dead.

Never pull wires off a powered up Raspberry. Power down first. Check wiring, check it again before powering up.

Dougie
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If the LED blinks 4 times when you power it on with NO SD card is inserted, there is a chance that you have an SD card error: https://www.raspberrypi.org/forums/viewtopic.php?t=250183

... had solid red/green lights using a number of different SD cards from different manufacturers ranging from 16, 32 and 64GB. Purchased another Raspberry pi 4 from a different vendor along with another power supply. Same problem with the constant red/green light which would indicate that it wasnt likely a power supply or pi fault. As I had re-downloaded a fresh copy of NOOBS and tested it on a number of cards these also were unlikely to be at fault which only leaves corrupt files on the SD card as the reason.

PC 1 (windows 10) with micro SD card to USB adaptor. Format SD card with Sandisk format tool, copy unzipped NOOBS from External HDD to Formatted SD card - Result: Red / Green constant light (I did at some point of repeated trying get 4 green quick flashes).

PC 2 (Windows 10) with micro SD slot. Format same SD card with Sandisk format tool, copy unzipped NOOBS from External HDD to Formatted SD card - Result: Booted up NOOBS, installed Lakka. Powered off Pi and booted up again. Works fine / No more constant green light.

Otherwise, yes. It's is probably dead.

Community
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Paamand
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