Recently, we noticed that there are some problems about A10 CPU of iPhone 7, this gives some people a lot of trouble, now Vipprog provide a short guide of fix iPhone 7 A10 CPU.
Proceed as follows
- Put QUICK 861DW turn the temperature to 300 degrees and Four-block wind, then we can easily remove the shield.
- Using hot air gunto heat and remove the glue around the A10 CPU, as the picture 1-1
1-1 - The hot air gun is open to 320 degrees
and start to pry the A10. Evenly heating 40 to 60 seconds and then we can use
Dual-End pry bar to pry. You should pay attention to feel when you pry it , however
it is no problem for those frequently pry A8 . There is something we should know
that the color of CPU baseband is yellow, just don't be think it as a flaw, as the picture 1-2
1-2 - Add some BGASolder Flux Paste on the solder tray of mainboard, and using the residual
temperature of hot air gun after pry CPU to remove the glue of mainboard solder
tray, as the picture 1-3
1-3 - Also add the BGA Solder Flux Paste to
the CPU and remove glue by solder iron. You can safely use solder iron to shave
because the material of glue on A10 is same to A9 which is easy to remove, as the picture 1-4
1-4 - Coating CPU with tin by A10 BGA Reballing Stencil, the capacitance of CPU can no be installed.
- Put the CPU in the right position, then
turned on the hot air gun with 290 degrees and we can begin to install the CPU.
At this time ,we should use BGA Reballing Stancil or insulation tape to
separated baseband. After heating about 30 seconds, we can see the CPU has
fallen and we can stop heating, as the picture 1-5
1-5 - After cooling the mainboard, install the
screen and turn on the power, then test it, we can found that the problem was
resolved and the iPhone 7 has back to normal, as the picture 1-6
1-6
Finally, we hope your iPhone can be fine, but just in case, you can refer to this artical. Maybe it can help you in a critical moment.
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