# SparkFun RTK Express the screen does not turn on and I can not configure the ESP32

**URL:** <https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932>\
**Category:** Power\
**Created:** [May 11, 2022, 10:15pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932 "2022-05-11T22:15:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![AGUSTIN](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@AGUSTIN](https://community.sparkfun.com/u/AGUSTIN)\
**Post date:** [May 11, 2022, 10:15pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932/1 "2022-05-11T22:15:52Z")

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The equipment shows the coordinates, the problem is that the screen does not turn on and I cannot enter to reset through CONFIG ESP32.

It shows me this message:

rst:0x10 (RTCWDT\_RTC\_RESET),boot:0x13 (SPI\_FAST\_FLASH\_BOOT)

invalid header: 0xffffffff

invalid header: 0xffffffff

invalid header: 0xffffffff

invalid header: 0xffffffff

invalid header: 0xffffffff

invalid header: 0xffffffff

invalid header: 0xffffffff

invalets Jul 29 2019 12:21:46

 ![cmd.jpg](https://canada1.discourse-cdn.com/sparkfun/original/3X/2/3/23ed2320f73afb8a2dfffad955650aa406691ffa.jpeg)

Thank you.

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**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [May 12, 2022, 8:10pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932/2 "2022-05-12T20:10:55Z")

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Try updating the firmware via these instructions [https://learn.sparkfun.com/tutorials/sp … tomization](https://learn.sparkfun.com/tutorials/sparkfun-rtk-express-hookup-guide#firmware-updates-and-customization) - it might be helpful to check the “enter safe mode” option on the firmware configuration menu/screen

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**Author:** ![AGUSTIN](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@AGUSTIN](https://community.sparkfun.com/u/AGUSTIN)\
**Post date:** [May 17, 2022, 3:30pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932/3 "2022-05-17T15:30:25Z")

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Thanks for your help, but I already tried it and it won’t let me enter the options menu.

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**Author:** ![AGUSTIN](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@AGUSTIN](https://community.sparkfun.com/u/AGUSTIN)\
**Post date:** [May 23, 2022, 9:08pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-the-screen-does-not-turn-on-and-i-can-not-configure-the-esp32/43932/4 "2022-05-23T21:08:57Z")

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> AGUSTIN:  
> Thanks for your help, but I already tried it and it won’t let me enter the options menu.