The service regulations about the number of LCD bad pixels (dead pixels) are as follows.

In case of bad pixels, the person in charge checks the LCD accurately,

Check whether it is defective, and then do LCD free replacement or LCD replacement with payment.

The replaced LCD may also have defective pixels,

And will be handled in the same way as below:

Just like replaceable batteries, 1-year warranty from the date of purchase is applied to embedded batteries. 

Regardless of the warranty period, if the breakdown or damage is attributed to the customer’s fault, the customer must bear the repairing charge. As for accessories, the repairing charge may amount to as much as the initial purchase price depending on the type of repair or breakdown/damage. 

For product warranty, you must keep a receipt even though it is an accessory. If you cannot prove the date of purchase, the date of initial release will be applied to the warranty period. 

The warranty period is decided based on the purchase record (receipt) at the website. 

The warranty period for all the products sold which is presented in English is one year from the date of purchase. However, every other item except the main body will be classified as accessories, and in this case, the warranty period may be different.