iPhone 11 Pro Max no sound on calls, easy repair, pseudo soldering - Advanced Motherboard Repair

Here we have an iPhone 11 Pro Max with no sound on calls. The problem was that the 2 boards were not soldered as it should. It had a pseudo soldering issue.
I just separated the 2 halves and soldered back together, easy repair!
The phone was a swap, because the client said this iPhone was changed under warranty on an Apple store in my country.
Some of the tools and supplies i use all time
- Sugon T26 soldering station with JBC C210-018, C210-002 and C210-020 tips
- Gordak 952-A (I'm using this only for it's soldering iron)
- 8858 Hot Air Station (no name)
- Seek Compact XR Thermal Camera
- Sunshine DT-17N Multimeter
- HY3005D Power Supply (very old)
- Kingbo RMA 218 Flux
- Baku BK-227 Flux
- Cynel Soldering Wire 0.5mm and 0.7mm
- Mechanic XGS40 158C Solder Paste
- Relife RL-404 138C Solder Paste
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[@MAHMUDASERIA]

Great job master

[@mirceaalicu]

great! :)