Check Damage To Mobile Phones With Power Supply

Check Damage To Mobile Phones With Power Supply

Death can be caused by cell phone Hardware and Software
The first step of checking the power supply, whether the phone died there in Hw or Sw.
How:
Connect the cable from the power supply to the mobile phone battery connector of at least 3 cables, with a sequence of negative, and positive BSI. (Black, green and red) - Point-volt power supply at 3.6 V (or according to Hp it with a tolerance of 0.5 V). The phone in the off state, then press the button on. If the amperage when pressed the button on, silence means there is a problem on its hardware (HW), it is necessary to check the components on / off until the battery. If the amperage when pressed the button on, ride around - + 50 mA, then the problem happened is a matter of software (SW), then you need to do is re-programmed HP (flash) or program upgrade to higher versions.

Detection with PS:

Detection 1
Power on failed, while the on / off Power Suply in press short Amphere & Voltage is to the point '0 'analysis: There was a short on the components that are connected directly to V Battery, namely IC PA, Charging IC, IC Regulators and CCONT UI.
Action: Remove the PIN1 of IC UI IC lift if still short of PA and so on. Until there is no short. If normal then replace the IC that causes short.

Detection 2
Switch is pressed on DC Power Supply Amphere no reaction, while cable (+) reversed the short.
Analysis: There was damage to the on / offTerjadi breaking point with the on / offTerjadi damage to the IC Power Supply (CCONT)
Action: Measure the Switch on / offUkur line with the on / off with respect to lane scheme on / offJika all OK then the damage is in CCONT, heat if you do not want it Amphere Gani, until there is tension rising.

Detection 3
Switch pressed Amphere show up trend from 0 to 20-50 mA and stable there.
Analysis: CCONT has given voltage but stop orders. Usually HP missing data program. Flash IC is damaged, defective IC COBBA
Action: Use the software to reprogram the phone according to the type. Usually the phone will be normal again, if not then fix the Flash IC, and last COBBA CPU.

Detection 4
Switch is pressed, the DC Power Supply Amphere no reaction when the cable (+) reversed the short did not happen.
Analysis: There was an end point (+) on battery so it does not enter the flow of mobile phone
Action: Note the path scheme (+) and then use the technique on the path-breaking jumper

5 Detection
Switch is pressed, the DC Power Supply Amphere showing 1-2 A and stable there.
Analysis: There was leakage currents caused by capacitors or components that take a direct current to V Battery.
Action: Isolate the components of current are taken directly to the V Battery.

Detection of 6
Switch is pressed, amphere shows 50 mA - 1 A and stable there.
Analysis: There was unsolder the components outside. The components taken direct current to V Battery.
Action: Heat the IC and then try to replace him

Detection 7
Switch not pressed there has been short (voltage down to 0)
Analysis: There was short at point V Battery
Action: Remove the components is a path V Battery, one by one.

Detection of 8
Switch pressed Amphere rose show unstable and Kambali to 0
Analysis: There was not normal in the system clock (RTC)
Action: Isolation circuit component clock (RTC)