Today we will certainly share a fixing case of an apple iphone 12 that is not able to activate Press the power button and the phone won’t activate Attach the phone to power and the phone still will not switch on Disconnect the screen Power up the motherboard Please be kept in mind that the moment for powering up shouldn’t be too lengthy It can be seen that the current value is big The motherboard has a huge present which indicates the motherboard is short-circuited Next off, we require to remove the motherboard and situate the malfunctioning part for repair work Procedure the diode worth of PP_BATT_VCC line with a multimeter The diode value is 0 It can be verified that PP_BATT_VCC line is short-circuited PP_BATT_VCC line and PP_VDD_MAIN line of iPhone 12 are attached in series by an inductor So the short-circuited PP_BATT_VCC line might additionally trigger the PP_VDD_MAIN line to short circuit The old service to repair the huge present problem is via rosin finding Through the melting of rosin, we can validate the damaged part Though the solution is inexpensive and also effective, it has some drawbacks The motherboard needs to be covered with rosin while the rosin is tough to tidy up later In enhancement, we need to get rid of securing covers on the motherboard for an extensive assessment There is no question that operation difficulty will be significantly improved Today we will introduce an advanced and effective means to seek brief circuit on the motherboard with the assistance of a Thermal Imager Cam The thermal imager finds the component of which temperature is more than typical value through infrared radiation The thermal imager can detect motherboard electric leak within secs The malfunctioning parts will certainly be identified quickly when you put the motherboard under the video camera, tremendously enhancing repair service efficiency While inspecting overall motherboard working problems, the thermal imager can pinpoint damaged get rid of high precision Additionally, the thermal imager is an expert in detecting little electric leakage, brief circuit as well as other problems with very easy and also risk-free procedure, substantially decreasing the error price Firstly, we put the motherboard on the functioning platform Attach the black probe of the straight power supply to the ground and connect the red probe to PP_BATT_VCC line The temperature level on the top left edge has actually risen The defective component can be validated on the leading left corner Open up the bitmap We can see that PP_BATT_VCC line is not on the leading left corner Considering that PP_BATT_VCC line and also PP_VDD_MAIN line are attached in collection by an inductor, we can evaluate that PP_VDD_MAIN line is short-circuited With inductors of PP_BATT_VCC line, click one more side of the inductors The opposite side is linked to PP_VDD_MAIN line We can once again identify the variety of malfunctioning component It can be seen on the bitmap that the PP_VDD_MAIN line gets on the reasoning board Following, we separate the motherboard Put the motherboard on the 170 ° C Home heating System to warmth Get rid of the motherboard After the logic board has actually cooled, power up the reasoning board Attach the black probe to the ground and also attach the red probe to PP_VDD_MAIN line Through the thermal picture, we can now verify the damaged component The capacitor is flawed with charring Remove the capacitor Tidy the bonding pad with PCB Cleanser Gauge the diode worths of PP_VDD_MAIN line and PP_BATT_VCC line The diode worths return to normal The short circuit mistake has been gotten rid of After that we recombine the motherboard Set up the phone to evaluate The phone transforms on generally WiFi as well as baseband work well IMEI number can be seen The mistake has actually been removed You can acquire the Thermal Imager Camera on REWA shop Please don’t wait to call our account managers or customer care group for more information Thank you for viewing
Fix iPhone 12 Won’t Turn On By Infrared Thermal Imaging Camera
