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jboeren

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About jboeren

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    InsanelyMac Protégé

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    Netherlands
  1. Lenovo ThinkPad T420 with UEFI Only

    Did you try Google archives?
  2. Lenovo ThinkPad T420 with UEFI Only

    The T520 is different. Can't help you with that.
  3. Lenovo ThinkPad T420 with UEFI Only

    @copperspeed2 Did you follow the instructions from @tluck? Where do you get stuck?
  4. Lenovo ThinkPad T420 with UEFI Only

    I can't mis my Hackbook at the moment. So HS has to wait....
  5. Lenovo ThinkPad T420 with UEFI Only

    There are issues with high sierra on the/some T420’s. You can read the last posts on this thread! My T420 had issues too and I switched back to Sierra until there is a solution.
  6. Lenovo ThinkPad T420 with UEFI Only

    My T420 had so many crashes while searching for a solution that a clean install was a important first step. I hope someone finds a solution so I can upgrade to High Sierra. Now I'm back on Sierra I notice some differences compared to High Sierra. Power management / sleep works again! Battery now shows actual level. When I (dis)connect the power cable the laptop beeps. Could be I messed that all up while testing....
  7. Lenovo ThinkPad T420 with UEFI Only

    I booted a linux live stick (live cd works the same) and used geparted to remove all partitions.
  8. Lenovo ThinkPad T420 with UEFI Only

    I did a macOS Sierra Clean install. My T420 is now running smoooooooooth
  9. Lenovo ThinkPad T420 with UEFI Only

    Booting my T420 in safe modus does not solve the problem.
  10. Lenovo ThinkPad T420 with UEFI Only

    You’re right!
  11. Lenovo ThinkPad T420 with UEFI Only

    Dont’t forget the HD+ cable! Without it it wont work! I looking for a reliable reseller too!
  12. Lenovo ThinkPad T420 with UEFI Only

    The T420 is a cool device for maintenance! Many laptops are much much worse!
  13. Lenovo ThinkPad T420 with UEFI Only

    LG Philips HD+ LCD fru04W3331 est 50 euro/dollar HD+ cable fru04W6867 or fru04W6868 est 25 euro/dollar http://www.thinkwiki.org/wiki/T420_and_T430_HD%2B_Screen_Upgrade
  14. Lenovo ThinkPad T420 with UEFI Only

    @tluck Do you have the LG HD+ screen builtin your T420? I’m thinking of upgrading my AOU screen to HD+....
  15. Lenovo ThinkPad T420 with UEFI Only

    #MeToo Still searching for a solution.
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