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Customer brought in an iPhone 7 with intel modem. iPhone has IMEI in the info screen but no modem formware. If I press *#06# it doesn’t show IMEI.
There is almost no information about Intel baseband issues and the lines also have different names. Any advice or tips for this problem? I measured the surrounding capacitors and found no short.
Reballing the BBCPU did the trick.
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This would defiantly be a baseband issue although the Intel versions don’t usually suffer from this problem unless someone has replaced the audio IC and put too much heat on the board causing solder bridges under the baseband CPU.
ZXW has a comprehensive board view for the Intel now. I am not sure what lines you checked but I would start at the baseband PMU and then to the baseband CPU. If nothing rears its head I would replace the baseband PMU if that didn’t resolve it a reball of the baseband CPU would be the only other thing to try.
Был ли этот ответ полезен?
Replaced BB pmu already but nothing. iPhone has never been repaired before. Will try to resolder the BB CPU
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