What you are entitled to.
WHAT TO KNOW ABOUT ANY DEVICE
When it was bought What warranty applies, and for how long What it covers What voids it
WHAT WARRANTIES USUALLY COVER
Manufacturing defects.
WHAT THEY USUALLY DO NOT
Accidental damage Liquid damage Wear Software problems Your data
THAT LAST POINT
Repair frequently means replacement of the storage, and your data with it.
WHAT TO DO BEFORE ANY REPAIR
Back up, and remove anything sensitive.
WHAT TO KEEP
Receipts and serial numbers, somewhere you can find them.
WHY
Warranty claims require proof of purchase.
WHAT TO RECORD FOR EVERY DEVICE
What it is, when bought, from whom, and its serial number.
WHAT TO CHECK BEFORE BUYING
What support is available locally.
WHY THAT MATTERS HERE
A warranty requiring return to another country is of limited practical use.
WHAT TO ASK
Who repairs this, and where.