Raspberry pi repair
- Thread starter JMak
- Start date
1. Did you try with another adapter ? Always try and use the official adapter, if possible.
2. You may have blown the polyfuse. If that happens then let it cool down and try again after couple of days.
Here are a few troubleshooting steps -
www.makeuseof.com
2. You may have blown the polyfuse. If that happens then let it cool down and try again after couple of days.
Here are a few troubleshooting steps -
7 Causes for a Raspberry Pi That Won't Boot (And How to Fix Them)
Raspberry Pi won't boot? New Raspberry Pi 4 not booting, with no red or green lights? Try these Raspberry Pi troubleshooting tips.
www.makeuseof.com
JMak
Adept
I have used many adaptors and cables mate,1. Did you try with another adapter ? Always try and use the official adapter, if possible.
2. You may have blown the polyfuse. If that happens then let it cool down and try again after couple of days.
Here are a few troubleshooting steps -
7 Causes for a Raspberry Pi That Won't Boot (And How to Fix Them)
Raspberry Pi won't boot? New Raspberry Pi 4 not booting, with no red or green lights? Try these Raspberry Pi troubleshooting tips.
Tried plugging in with and without the card, but nothing
When you just turn it on, you can see very faint red light for 1/4th of a second and then dead as a dodo.
If its the polyfuse then try after couple of days otherwise its a goner
enthusiast29
Skilled
Something is short and maybe protection is kicking in. Use a multimeter to find shorted or blown component.
JMak
Adept
Aah,, if only I had one and was that savvy.
But will see and might ask the local tv repair guy to use multimeter
If you haven't got this already, he may find the schematics useful.
salian
Disciple
I just had a thought; you can also power the Raspberry Pi 4 from pins on the GPIO header. Using thick wire, supply well-regulated 5V to pin 4, and ground to pin 6.
Take care not to accidentally apply 5V to any of the other pins, as the I/Os are intended for 3.3V operation.
https://github.com/raspberrypi/hats...e.md#back-powering-the-pi-via-the-gpio-header
image via https://stamm-wilbrandt.de/en/forum/20200414_115932.f.jpg
Take care not to accidentally apply 5V to any of the other pins, as the I/Os are intended for 3.3V operation.
https://github.com/raspberrypi/hats...e.md#back-powering-the-pi-via-the-gpio-header
image via https://stamm-wilbrandt.de/en/forum/20200414_115932.f.jpg
JMak
Adept
(bumping his thread to seek help)...
Guys i even bought a multimeter (though I dunno crap how to operate but wherever I tried it seemed that the USB port is okay so it seems there is some other issue...
Can anyone please suggest a repair outlet who know what they are doing for the repair of the pi...
Would be grateful if it's in Delhi.
Thanks
Guys i even bought a multimeter (though I dunno crap how to operate but wherever I tried it seemed that the USB port is okay so it seems there is some other issue...
Can anyone please suggest a repair outlet who know what they are doing for the repair of the pi...
Would be grateful if it's in Delhi.
Thanks
If it doesn't get fixed by simple alcohol + toothbrush bath, it's unlikely it'll ever work again. Because it's a raspberry pi and spares are sparse. Even if the CPU, RAM are fine, there's chance some VRM has gone bad. I don't think any electronics repair shop would keep these ICs handy. This is me assuming raspberry has dedicated separate VRMs.
JMak
Adept
O ho... I haven't tried the isopropyl trip as yet... As i Beleive some supply problem broke so etching in it.. But i can always try the cleaning
Thanks for bringing this up mate..
God bless
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JMak
Adept
Seems a lost cause
Still same after bathing it in IPA and brushing it...
I may have to look for another one in used mkt