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iPhone 5s causing repeated Tristar failure
I have a 5s no power, not charging. Ive checked tristar lines in diode mode and found no obvious shorts. The ammeter read...
Replaced Tristar, Tristar fails again iPhone 5s
I have an iphone 5s drawing 0.08 amps. I had replaced the 5s tristar with the backwards compatible NXP 610A3B chip that i...
Looking for a short on VCC MAIN, injected 4.2v blew component
Title pretty much sums it up. I soldered a wire to a cap near the pmic. I hooked the positive up and heard pop and saw a...
Weird diode reading on 5c Backlight circuit
Im testing a 5c that was sent to me with no image/backlight When testing the connector in diode mode I get .363 when there...
What am I missing? voltages on iPhone 5s lines
I am troubleshooting my first iPhone circuit. It is an iPhone 5s. I did diode readings on a bunch of circuits: vcc main...
Motherboard hooked to DCPS, no amps draw
Why wont a iphone 5s motherboard hooked to a dcpc on constant current draw any amps? How can i power it on outside of the...
DCPS reads no Amps drawn?
Im testing an iphone 5s along with a 5c. After hooking the DCPS to the phone via battery terminal on the logic board, and...
How do I measure output voltages at Tristar?
I am trying to figure out why I can get the voltage readouts from VCC Main and Batt VCC, but not other lines, even when...
How to test Chestnut output voltages iPhone 5c
Im fixing an iPhone 5c, with display issues after a drop. The measurements i got in diode mode are: Vcc main 0.153 Batt...
Fixing iPhone 5s, need known good Diode values
I have a bunch of diode readings as i look for shorts on a dead iphone 5s. ZXW has no resistance values for the 5s, which...
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