Answers.Body: <p>There is a full map of the EV3 user interface <a href="http://ev3.fantastic.computer/doxygen/uiapp.html" rel="noreferrer">here</a>.</p>
  <p>Although the popup in the photo is in the diagram, it is not labeled. So we have to go digging around the EV3 source code to find out what it means. The icons can be found in <a href="https://raw.githubusercontent.com/mindboards/ev3sources/master/lms2012/lmssrc/c_ui/24x22_Yes_No_OFF_FILEOps.bmp" rel="noreferrer">this bitmap</a>. The icons are mapped to names <a href="https://github.com/mindboards/ev3sources/blob/78ebaf5b6f8fe31cc17aa5dce0f8e4916a4fc072/extra/linux-03.20.00.13/arch/arm/mach-davinci/bytecodes.h#L1038-L1064" rel="noreferrer">here</a>. Using this information, we can deduce that from left to right, the icons are <code>WARNSIGN</code>, <code>WARN_POWER</code> and <code>TO_MANUAL</code>. Further search of the code reveals <a href="https://github.com/mindboards/ev3sources/blob/78ebaf5b6f8fe31cc17aa5dce0f8e4916a4fc072/lms2012/c_ui/source/c_ui.c#L2633-L2648" rel="noreferrer">two conditions</a> where all 3 of these icons appear together. <code>WARNING_TEMP</code> and <code>WARNING_CURRENT</code>.</p>
  <p>So either the battery has high temperature or the brick is using too much current. Given the statements about the malfunctioning input ports and the battery leakage damage, I would suspect that the battery leakage has cause some sort of short circuit that is causing high current usage. You could try removing the cover and cleaning up the damage with isopropyl alcohol. Although to get to the back side of the circuit board, you have to desolder the battery terminals.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-06-22T20:22:53.787Z
Answers.Text: I would also contact the seller, and ask them if they knew the circuit board was damaged.
Answers.UserDisplayName: spikey_richie
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-06-30T06:59:12.377Z
Answers.Text: ok thanks for my answer
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Answers.UserDisplayName: David Lechner
Body: <p>I just purchased a second hand LEGO Mindstorms Home EV3.
  The brick turns on, allows firmware update, etc. However, after about 2 minutes the unit makes a noise, LED's turn red, and 3 icons appear.</p>
  <ol>
  <li>Triangle with exclamation point</li>
  <li>Gage with arrow pointing to the right (I assume overheat?)</li>
  <li>Manual with exclamation point</li>
  </ol>
  <p>Question: does anyone know what this error message indicates?</p>
  <p>There appears to be some battery corrosion as if it was stored and the batteries leaked.
  Additionally Ports 1 and 2 indicate &quot;Error&quot; or &quot;Unknown&quot; and sometimes they think a Sound DB sensor is plugged in even though nothing is plugged in.</p>
  <p><a href="https://i.sstatic.net/B8KxP.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/B8KxP.png" alt="enter image description here" /></a></p>
  
Tags: <ev3><mindstorms><repair>
Title: EV3 Home Shuts down after 2 min. (lights orange, and 3 Icons Triangle, Gage, Manual)
UserDisplayName: Shed
ThreadText: # EV3 Home Shuts down after 2 min. (lights orange, and 3 Icons Triangle, Gage, Manual)
  
  (Asked by: username_0 on 2022-06-21)
  
  I just purchased a second hand LEGO Mindstorms Home EV3.
  The brick turns on, allows firmware update, etc. However, after about 2 minutes the unit makes a noise, LED's turn red, and 3 icons appear.
  
  1. Triangle with exclamation point
  2. Gage with arrow pointing to the right (I assume overheat?)
  3. Manual with exclamation point
  
  Question: does anyone know what this error message indicates?
  
  There appears to be some battery corrosion as if it was stored and the batteries leaked.
  Additionally Ports 1 and 2 indicate "Error" or "Unknown" and sometimes they think a Sound DB sensor is plugged in even though nothing is plugged in.
  
  [![enter image description here](https://i.sstatic.net/B8KxP.png)](https://i.sstatic.net/B8KxP.png)
  
  **Tags:** ev3, mindstorms, repair
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2022-06-22. Score: 5
  
  There is a full map of the EV3 user interface [here](http://ev3.fantastic.computer/doxygen/uiapp.html).
  
  Although the popup in the photo is in the diagram, it is not labeled. So we have to go digging around the EV3 source code to find out what it means. The icons can be found in [this bitmap](https://raw.githubusercontent.com/mindboards/ev3sources/master/lms2012/lmssrc/c_ui/24x22_Yes_No_OFF_FILEOps.bmp). The icons are mapped to names [here](https://github.com/mindboards/ev3sources/blob/78ebaf5b6f8fe31cc17aa5dce0f8e4916a4fc072/extra/linux-03.20.00.13/arch/arm/mach-davinci/bytecodes.h#L1038-L1064). Using this information, we can deduce that from left to right, the icons are `WARNSIGN`, `WARN_POWER` and `TO_MANUAL`. Further search of the code reveals [two conditions](https://github.com/mindboards/ev3sources/blob/78ebaf5b6f8fe31cc17aa5dce0f8e4916a4fc072/lms2012/c_ui/source/c_ui.c#L2633-L2648) where all 3 of these icons appear together. `WARNING_TEMP` and `WARNING_CURRENT`.
  
  So either the battery has high temperature or the brick is using too much current. Given the statements about the malfunctioning input ports and the battery leakage damage, I would suspect that the battery leakage has cause some sort of short circuit that is causing high current usage. You could try removing the cover and cleaning up the damage with isopropyl alcohol. Although to get to the back side of the circuit board, you have to desolder the battery terminals.
  
  > **Comments:**
  > **username_2**: I would also contact the seller, and ask them if they knew the circuit board was damaged.  
  > **username_3**: ok thanks for my answer  
  
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