Dashboard LCD displays work on high temperature, so it is the best to avoid using the heat bonding procedure. How can we improve the quality of the LCD displays and the ribbon cables? Well if you assemble the LCD with the ribbon cable with pressure, no heat bonding, then the pixels of the BMW LCD display will work for an unlimited time. This means, the BMW LCD display show pixel failures, it needs pixel repair, but both the silver ribbon cable and the BMW LCD display work well - only the connection of them is bad, tha is why you have LCD display pixel problems, and you need a pixel fix by a professional, or done DIY with an LCD display pixel repair KIT - a silver cable. The ultimate recommendation from several parties was that I just need to wait until MS, HP, and/or Conexant to pushes a fix, and considering the amount of users affected.
This BMW speedometer assembly design makes the contacts of the LCD display and the ribbon cable loose contact very fast, most cases in just a few years. No audio on HP Elitebook 840 G3 with Conexant SmartAudio HD after update (KB3199986) I spent all day yesterday with a tech troubleshooting this issue, but nada. Because of this, VDO Instrument Cluster manufacturer decied to assemble the BMW LCD display and the silver ribbon cable with heat bonding procedure. Why do the BMW speedometer LCD displays fail with pixel failure? DIY Pixel repair helps with pixel failure? Well the BMW speedo manufacturers have a few minurtes only to produce a complete BMW speedo with LCD dispay and silver.