• Lenovo B590 no display problem

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
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#1 Lenovo B590 no display problem


by cygron 13 May 2023, 13:48
Model : Lenovo B590
Board id : LA58 MB 11273-3

Sometimes laptop is running ok with picture. But sometimes PL4401 (VCC_GFXCORE) is 0v and laptop runs without picture (no display). Need help.

Re: Lenovo B590 no display problem


by Google Adsense [BOT] 13 May 2023, 13:48

#2 Re: Lenovo B590 no display problem


by matic 14 May 2023, 01:24
Hello!

Try to replace the BIOS chip and flash it with old (original) dump. If it does not change anything, reflash the new BIOS chip with another dump.

Re: Lenovo B590 no display problem


by Google Adsense [BOT] 14 May 2023, 01:24
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

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