LED Error Solution

step by step analysing LED phone error

• Use manual multitester with scale xl in LED's feet, but with upside down pole with cables from multitester, it means: red cable multitester relates with negative pole from LED and Black cable multitester relateds with positive pole from LED.
• After related with multitester, if LED's component be in good condition, So LED will on directly, but if LED's component broken, So LED's component can not on, so you must replaced your LED.
• If all LED in PCB has flame when you investigate and test using multitester but when your handphone is turn on but LED's lamp doesn't flame so investigate what positive stripe (+) of battery to LED's lamp still good, If the stripe is broken do system jumper in stripe that broken.and then investigate what stripe from controlling IC (IC UI) to LED lamp.
• If component and LED's stripe in god condition, but LED's lamp isnot flame, Try to investigate and test that IC controller (IC UI) still good, If IC controller (IC UI) is good, so heating IC controller (IC UI) using blower.
• If old of IC UI has broken, So you must change IC UI