# Booting from SD-card

**URL:** <https://discuss.pynq.io/t/booting-from-sd-card/7582>\
**Category:** Support\
**Created:** [October 11, 2024, 7:17am UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582 "2024-10-11T07:17:59Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jalektro](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/jalektro/32/6787_2.png) [@jalektro](https://discuss.pynq.io/u/jalektro)\
**Post date:** [October 11, 2024, 7:17am UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582/1 "2024-10-11T07:17:59Z")

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Hello, I’ve a pynq-z2. The problem is that it wouldn’t boot from an SD card.  
i tried different SD-cards, all working in an other pynq-Z2. the cable has changed also but this is still not working. We have checked that the jumpers are in the right place. when I open putty to get serial connection there is only the green dot lighting up but the programme won’t start to login for serial connection.Also when i connect the pynq-z2 to my laptop only the red led is flashing.

I can load a programme to my pynq-Z2 by vivado, here is not a problem. has anyone a solution or what i can try?

Thanks in advance.  
Robert

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**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\
**Post date:** [November 7, 2024, 8:19am UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582/2 "2024-11-07T08:19:47Z")

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> [@jalektro](#):
>
> i tried different SD-cards, all working in an other pynq-Z2

> [@jalektro](#):
>
> only the red led is flashing.

> [@jalektro](#):
>
> We have checked that the jumpers are in the right place.

It sounds like the board is faulty.

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**Author:** ![jalektro](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/jalektro/32/6787_2.png) [@jalektro](https://discuss.pynq.io/u/jalektro)\
**Post date:** [January 15, 2025, 3:39pm UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582/3 "2025-01-15T15:39:43Z")

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sorry for the late response, Bought a new board and it’s working. the board was faulty like you said.

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**Author:** ![matthew](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@matthew](https://discuss.pynq.io/u/matthew)\
**Post date:** [January 17, 2025, 6:49pm UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582/4 "2025-01-17T18:49:52Z")

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If you have no more question, can you please close that post by selecting which response corresponds to the solution of your problem?

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**Author:** ![system](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/system/32/2_2.png) [@system](https://discuss.pynq.io/u/system)\
**Post date:** [January 20, 2025, 6:50pm UTC](https://discuss.pynq.io/t/booting-from-sd-card/7582/5 "2025-01-20T18:50:13Z")

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