IPHONE COMMON ERROR
Error 9,4013,4014,40,14,2005,
Note: make sure na try nyo na ibang charging flex and battery,
Tanong paano ba natin ma indentify kung sira si u2 ic?
-saksak natin si charger
- check natin kung may lumalabas ba na supply sa batt terminal
Range
ip5 - .8v-1.2v
ip5s - 2v
6-pro max - 3.7v - 4.5v
-if missing voltage u2ic problem (replace)
2. if good si u2 ic NAND problem
- backup info serial,wifi address ,and bluetooth addres
- format
- rewrite info
- restore
3. If same problem after format
- diode test sa lapagan ng nand ic
- check i2c line
- if i2c line is good
- posible problem cpu (reball)
