If the code has been changed and forgotten with the new code, then to re-open it to disoftware a way to come to the nearest service center.
For standard code nexian 0000 or 1234.
You can ask the repair status via Nexian care hotline or via the SMS center, email, and Facebook. Enough to inform the repair order number, IMEI number, type HP, and the location where repairs.
If Hp is damaged due to errors then it can use the factory warranty, but if the damage is indicated by customer negligence.
Every purchase mobile Nexian get a warranty for 1 year after purchase.
By the time it comes to the service center please bring a damaged HP completeness, purchase orders, and warranty card.