title: ST LINK Error (DEV_TARGET_HELD_UNDER_RESET)
body: <p>So I'm using an STM32F103C8T6 board and it was working fine a few days ago but then tried to load a code with keil vision compiler these days and it showed this message STLINK Error(DEV_TARGET_HELD_UNDER_RESET).
  After that using the STM32CubeProgrammer also shows the same problem, only connects with the &quot;hot plug&quot; mode
  <a href="https://i.stack.imgur.com/J8p3z.png" rel="nofollow noreferrer">as you can see here</a></p>
  <p>Its cleary a reset error, but I really dont know how it happened and don't find much resources on the internet with this problem and now I can't download any code in my stm32f103 board it shows
  <a href="https://i.stack.imgur.com/P226S.png" rel="nofollow noreferrer">this message</a></p>
  <p>After researching on the internet found it might be soldering problem, but I dont think its the case, i'm only using the microcontroller, not any bread board circuit, and it was perfectly fine days ago. All my write and read protections checkboxes are unchecked in the STM32CubeProgrammer sections too.</p>
  <p>I guy on the stcommunity just said &quot;he went through all CPU pins and the board started working.&quot; but is it a problem with the pin reset? in the STM32F103C8T6 board it has a reset buton but how can a search a problem in it?</p>