Minden számla nélküli, ebayról vett pendrive, a hátuljáról készített fénykép szerint eredeti:

Dear xy,

We would like to thank you for providing us the requested clarifications and also for the Screenshot, so that we may understand the issue you are facing with your drive.

Since the drive is no longer detected by several devices, It is indeed defected and we apologise for the inconvenience this issue must be causing you.
Naturally, since it is no longer possible to use it, it will need to be replaced and we will be more than happy to do it for you!

If you would like to proceed with replacement through SanDisk please respond to the following questions in order to register your product and verify the warranty entitlement.

Phone number (for shipping & technical support call back only)
Shipping address (no P.O. Box please)
Do you consent to sharing your address with our shipping provider?

Note: Refurbished, physically damaged or non-authentic products are not covered by SanDisk warranty.

We shall be waiting for your update. Thank you for your kind cooperation.

Best regards,