How to Diagnose & Troubleshoot a Motherboard Issue. Smashed iPhone 11 Pro Max Data Recovery Attempt
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This iPhone 11 Pro Max came in to my shop for Data Retrieval. The phone was smashed really bad & the motherboard looked warped.
So how do we go about diagnosing the problem & how do we troubleshoot it?
First step is always checking the current consumption before prompt to boot & after prompt to boot.
In this case, we first found no current draw before prompt to boot. This means there's no short on VDD MAIN, VDD BOOST and Batt VCC.
Then we go through prompting to boot, which is where I found a 0.470A (470mA) short AFTER prompt to boot.
Using the Seek Compact Pro thermal camera, we saw some heat towards the middle of the motherboard, but no obvious "hot spot".
So I then split the sandwich using the i2С T20 Heater using 200C.
I inspected the CPU & found a suspicious line running across it.
Checking it again under the thermal camera, we spotted some heat directly on the CPU. This is BAD.
Sadly, it seems like the RAM and possibly the CPU is damaged & without the CPU being good, there's no way to get data.
Let me know in the comments, what you learned from this video!
Here’s the list of tools I used in this video:
⭐ DC Power Supply: https://www.vccboardrepairs.com/dcps1
⭐ iPhone Boot Cables: https://www.injuredgadgets.com/mechan...
⭐ i2C T20 Heater: https://www.vccboardrepairs.com/heater
⭐ Seek Compact Pro: https://amzn.to/34I4whX
⭐ Seek Stand: https://vccboardrepairs.com/buy-seek-...
⭐ Seek Macro Lens: https://www.vccboardrepairs.com/buy-m...
⭐ Fluke Multimeter: https://amzn.to/3UwBIyK
⭐ Dual Soldering Iron Station: https://amzn.to/47RV4Dt
⭐ JBC C210 Knife Tip: https://amzn.to/47RV7PF
⭐ Atten Hot Air Station: https://amzn.to/3tjYIYl
⭐ Microscope: https://amzn.to/48coNYN
▶Here are some other tools I have tested & fully recommend: https://www.vccboardrepairs.com/gear
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▶About VCC Board Repairs◀
We are a Las Vegas, NV based repair shop who offers mail in repair services for microsoldering repairs & data recovery. Our specialty is iPhone, iPad, Samsung and other mobile devices. We also offer B2B pricing for repair shops. Contact us today for a quote: https://www.vccboardrepairs.com/conta...
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