This is a import unit & it comes without retail packaging, QC Pass, professional needed for installation.
Ultra-high capacity battery Robust & durable battery (Only works with original phone),Not suitable for other mobile phones.
It is highly recommended that the replacing work will be done by a professional repairer or buyer is good recognized of assembly knowledge before purchase.
CAUTION: Do not open, crush, puncture. short external contacts or dispose in fire or water. Risk of fire, explosion and burn. Do not open, crush,heat.
Note: After you installed the new battery Reset / format the phone to sync the battery with the phone.