# No LED, no UART output on TTN Gateway after reset

**URL:** <https://www.thethingsnetwork.org/forum/t/no-led-no-uart-output-on-ttn-gateway-after-reset/12054>\
**Category:** TTKG - The Things Kickstarter Gateway\
**Created:** [January 26, 2018, 1:23pm UTC](https://www.thethingsnetwork.org/forum/t/no-led-no-uart-output-on-ttn-gateway-after-reset/12054 "2018-01-26T13:23:53Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\
**Post date:** [January 26, 2018, 1:35pm UTC](https://www.thethingsnetwork.org/forum/t/no-led-no-uart-output-on-ttn-gateway-after-reset/12054/2 "2018-01-26T13:35:29Z")

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> [@milanoengineering](#):
>
> and FTDI connected to the UART will not show any information

Did it ever? (If you only connected after running into trouble, then maybe you’ve connected the wrong pins.)

> [@milanoengineering](#):
>
> Any way to reflash the firmware, with the SD card?

Yes, but I don’t know how, nor where to get the image:

> [@TTN GATEWAY central](https://www.thethingsnetwork.org/forum/t/ttn-gateway-central/10976/152):
>
> If things go terribly wrong you’ll be able to flash firmware from an SD card.

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