iphone x short boost ic - GSM-Forum

ajmal_khan713 · 09-05-2019, 16:25

iphone x short boost ic help me guys last night i put in charging while the phone is off mode when i wake up in the moring was so hot and i try to remove battery and check the board it was the boost ic short

CDMA_RASHID · 09-05-2019, 17:23

The IC you are referring to boost IC is a charging mosfet.

If the mosfet is heating that doesn't means it is short.

Most probably you have short on PP_VDD_Main.

You need to remove it and Short its PP_BATT_VCC to PP_VDD_MAIN supply.

After you short the supply connect a charged battery or connect it to the DCPS and try to find which part heats up.

Once the heating part is located try removing it .

Mostly it is some capacitor connected to the VDD_MAIN line.

Hope that helps.

09-05-2019, 16:25	#1 (permalink)
ajmal_khan713 Freak Poster Join Date: Nov 2008 Posts: 353 Member: 894846 Status: Offline Sonork: ajmal Thanks Meter: 111	iphone x short boost ic iphone x short boost ic help me guys last night i put in charging while the phone is off mode when i wake up in the moring was so hot and i try to remove battery and check the board it was the boost ic short

09-05-2019, 17:23	#2 (permalink)
CDMA_RASHID No Life Poster Join Date: Jul 2008 Location: Mumbai Age: 36 Posts: 1,023 Member: 821646 Status: Offline Thanks Meter: 507	The IC you are referring to boost IC is a charging mosfet. If the mosfet is heating that doesn't means it is short. Most probably you have short on PP_VDD_Main. You need to remove it and Short its PP_BATT_VCC to PP_VDD_MAIN supply. After you short the supply connect a charged battery or connect it to the DCPS and try to find which part heats up. Once the heating part is located try removing it . Mostly it is some capacitor connected to the VDD_MAIN line. Hope that helps.