- IPHONE CONNECTOR 7 REPAIR FULL
- IPHONE CONNECTOR 7 REPAIR PRO
Poke those coils and see if they break off. Clear out all underfill around L1801, L1804 and 元302. When you prompt to boot, it jumps up to 20–40 mA and just hangs at that value. 
When the board is connected to a DC power supply. No Power - Hangs at 0.020–0.030 A after you prompt to boot on DC Power Supply Q2101 itself does not have a connection to ground, therefore, it's impossible for it to be shorted. This is because the battery connector line PP_BATT_VCC connects to PP_VDD_MAIN through it, which creates lots of heat. IPHONE CONNECTOR 7 REPAIR PRO
Please Note: If you are using a DC power supply to inject voltage through the battery connector, like using an iPower Pro or DT880 (see here ), be aware that the Tigris Mosfet Q2101 will heat up instantly. You'll need to visually inspect these areas to see if they're liquid damaged
Under BBPMU_RF and around it, like Capacitors: C5625_RF, C5622_RF. Often, you'll find corrosion on capacitors but also under ICs.Ĭommon ICs and areas to have corrosion and cause a VDD MAIN short: If you have a case of water damage, then you'll have to pay attention to the spots on the board where there's signs of water damage. Replacing it means you are adding more heat to the board to reinstall it, which increases the risk of something going wrong. The device will function normally with no negative effects. In these cases, you can just remove the shorted capacitor and not replace it. You'll need to inject voltage (4 V / 2 A) directly into the line you measured as short and use freeze spray (see here ) or thermal camera (see here: ) to spot the capacitor that is shorted. PP_SPKR1_VBOOST - This is a bit rare but it does happen. PP_LCM_BL_ANODE or PP_LCM_B元4_ANODE - Sometimes the backlight circuit has a short and causes the same symptoms. PP_VDD_BOOST - This line is usually shorted when it's not VDD MAIN. 
PP_VDD_MAIN - This is the most likely line to be shorted.If there is no water damage, is is most likely a shorted capacitor on any of the below lines: You're looking for any signs of corrosion on or around components and ICs.
Remove the foam around the connectors to get a better look at everything.
IPHONE CONNECTOR 7 REPAIR FULL
No Power - Pulls ≈2 A or more before you prompt to boot on DC power supplyĭo a full visual inspection of the board and check for water damage under the stickers on the back.
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