Nintendo Switch | re-balling BGA chip

Quick bank holiday video of a re-ball under my microscope.
Really like this microscope and the quality. Video review below:
• You will love this Joy...
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[@hawkfeather6802]

Looks nice!

[@tycoonsanchez5493]

YOU FORGOT THE ORGANIX FLUX WITH THIS IT SO EASY

[@hove131]

How do you keep the stencil from bowing up when re-balling using paste? Ive lowered my hot air down to 260 and still have this issue. Idk if its me or the stencil. Most likely me.

[@fixingmoddingbuilding]

I had this issue a lot, bought better solder paste helped with lower temps, to stop the flex need to push down with tweezers to stop it lifting.

[@hove131]

@@fixingmoddingbuilding I use mechanics solder paste. I think it may be my tweezer technique or maybe it and the paste both. Thanks

[@fixingmoddingbuilding]

@@hove131 I have just made another video, reballing a chip but it's not getting uploaded for a few weeks. I also use mechanic solder paste. Holding the stencil down strong is probably the only thing you need to work on?