Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
Forum Thread Details
  • Replies 7 replies
  • Subscribers 679 subscribers
  • Views 2951 views
  • Users 0 members are here
Related

ethernet and usb port broken on my raspberry pi 2

amine92

Hello,

 

As the title says, I've had a Raspberry Pi 2 Model B. At first, It started working well, with RJ45 cable connected to the Ethernet port and a mouse connected to one of the USB ports. However, after almost a week, the two little lamps in the Ethernet port turned off and the USB ports stop working as they are all broken.

 

Any help would be highly appreciated !

power 5V 2A

16 gb

Parents

  • My guess would be that somehow you managed to blow up the LAN95xx chip (i don't remember the xx, that xx is different between the B and the B+ by the way.). That would in one blow disable both USB and ethernet, as the chip acts both as an USB hub and as the ethernet controller. If your USB fuses would be blown, then it is odd that also ethernet has stopped working. If your main fuse is blown then it is odd that the PI does something at all. (but the fact that you say that USB and ethernet are not working makes me think that you still have HDMI output.... )

     

    The LAN chip is powered from 3.3V. If your 3.3V powersupply on the board was broken then the SD card wouldn't work either. So if we assume a single thing has failed then I would say everything points at the LNA95xx chip. 

Reply

  • My guess would be that somehow you managed to blow up the LAN95xx chip (i don't remember the xx, that xx is different between the B and the B+ by the way.). That would in one blow disable both USB and ethernet, as the chip acts both as an USB hub and as the ethernet controller. If your USB fuses would be blown, then it is odd that also ethernet has stopped working. If your main fuse is blown then it is odd that the PI does something at all. (but the fact that you say that USB and ethernet are not working makes me think that you still have HDMI output.... )

     

    The LAN chip is powered from 3.3V. If your 3.3V powersupply on the board was broken then the SD card wouldn't work either. So if we assume a single thing has failed then I would say everything points at the LNA95xx chip. 

Children
No Data