How to remove iPhone XR motherboard bottom shield?
Hello, I am trying to remove the bottom shield of an iPhone XR motherboard to replace U3300, however I have noticed that it is a lot harder to get off than other shields. By “bottom shield” I mean the shield under the battery connector. I tried 480c of heat, which is the maximum my hot air will go to, however it did not come loose. Maybe I need to heat it for longer? I am just concerned that I may damage or heat the motherboard too much. Thank you so much for your help
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