The thing that people need to remember though is that you void your warranty if you physically open your Ledger HW. And according to their support, they will replace faulty devices even if the 2-year warranty period expires. That's not the case if you open it though.
Is it even recommended to send them back to them for faulty device replacement though? I would not trust them handling my Ledger. Particularly with a closed source component they can mess with which may have easily stored information I definitely would not want it to.
Would rather replace the display by myself and void the warranty instead. Or just buy a new one but my suggestion is, do not trust strangers, particularly Ledger employees, with your Hardware Wallet on their hands.
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Regards,
PrivacyG
Well, I fully admit, the option of sending back a device with a broken display. Only I would first transfer the entire balance to another working device. Broken display prevents you from doing this? But you still have seed-phrase, don't you? So, it's quite possible and you don't have to worry that Ledger will get critical information for you.