# Electron bricked - solid D7 led **URL:** \ **Category:** Troubleshooting\ **Tags:** electron\ **Created:** [May 14, 2019, 2:03pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745 "2019-05-14T14:03:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Gorgo](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/gorgo/32/18209_2.png) [@Gorgo](https://community.particle.io/u/Gorgo)\ **Post date:** [May 14, 2019, 2:03pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/1 "2019-05-14T14:03:29Z")
Hi everyone, my Electron stopped working this morning and now only D7 led is on when I turn it on with its LiPo battery. When I plug it with the USB cable, the usb led also turns on. I can’t understand why It stopped since I’ve been using this configuration for months. I read about it may be due to flaky power supply or bad contact though and that’s probably my case since some sensors’ leds flickered a bit. I can’t get into DFU mode anymore and I also tried holding SETUP + pushing reset one time, as I read in another thread. I also tried SWD using a Photon as programmer. I run it 10/15min ago but it didn’t prompt anything except for: Do you have a dead device and wish to continue? [y,N]:y Photon’s led is solid yellow/red while their D7 led are brighter now. Can I stop them? I went to this topic ([Dim d7 blue light and jtag config help for recovery](https://community.particle.io/t/dim-d7-blue-light-and-jtag-config-help-for-recovery/32073/2)) but links there are dead. @ScruffR Can I use other photon as JTAG programmer? If not I have also a MCS-73 TTL USART and a chinese board I used as TTL/UART but with many more pins available (In the picture. HD: [https://ibb.co/cQYzywL](https://ibb.co/cQYzywL)) ![IMG_20190514_155510](https://us1.discourse-cdn.com/flex026/uploads/particle/original/3X/7/6/76b94b4f90346ff99b1588025558442eb00c995a.jpeg) Can somebody help me? Tnks 🙂 ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [May 14, 2019, 2:13pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/2 "2019-05-14T14:13:46Z")
There might be an issue with how you power the Electron See here [https://docs.particle.io/datasheets/cellular/electron-datasheet/#3v3-pin](https://docs.particle.io/datasheets/cellular/electron-datasheet/#3v3-pin) ![image](https://us1.discourse-cdn.com/flex026/uploads/particle/original/3X/d/f/df5a89bf9effeb1c7931dd56814b56d61dca3ba3.png) If if that was possible, the power demand of the Electron would max out the power the Photon could provide via the 3v3 pin and potentially damage the Photon’s regulator [https://docs.particle.io/datasheets/wi-fi/photon-datasheet/#pin-description](https://docs.particle.io/datasheets/wi-fi/photon-datasheet/#pin-description) ![image](https://us1.discourse-cdn.com/flex026/uploads/particle/original/3X/3/f/3f759d3bcca035f1977322c706157b9ebf629f95.png) ---
**Author:** ![Gorgo](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/gorgo/32/18209_2.png) [@Gorgo](https://community.particle.io/u/Gorgo)\ **Post date:** [May 14, 2019, 2:31pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/3 "2019-05-14T14:31:56Z")
Damn, I moved the jumper from Electron’s 3V3 to its VIN. (Opposite side). I relaunched SWD but I don’t see any difference from before. Just blue leds are not so bright now. Too late? ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [May 14, 2019, 4:40pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/4 "2019-05-14T16:40:03Z")
> [@Gorgo](#): > > Too late? Possible 😳 What does the Photon do now when you take it out? What does the Electron do when you plug in the LiPo (and nothing else)? ---
**Author:** ![Gorgo](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/gorgo/32/18209_2.png) [@Gorgo](https://community.particle.io/u/Gorgo)\ **Post date:** [May 14, 2019, 4:50pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/5 "2019-05-14T16:50:29Z")
Photo starts with blue (MAIN) led on. Electron only turns on D7 led as before. Nothing has changed. I think my first topic is still valid then 😅 ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [May 14, 2019, 4:52pm UTC](https://community.particle.io/t/electron-bricked-solid-d7-led/49745/6 "2019-05-14T16:52:21Z")
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