In my experience the most common cause of a bootloop an an iPhone 7 is the Audio IC chip… or rather the lack thereof. This chip will loose some of its solder joints similar to how the touch IC would on the iPhone 6 plus.
Here are some images showing where it is and how to get to it.
The only real way to fix it is to remove this chip, re-ball, and re-solder it back. This does come with some risk and should only be done by an experienced professional.
Also, with some of the later updates of iOS, most iPhones will boot up showing only a black or white screen before showing an Apple logo. This alone doesn’t indicate any kind of issue with your phone.
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crwdns2944067:04crwdne2944067:0
i got this issue its two way one is disconnect the front camera seconed disconnect the home button
crwdns2934271:0crwdnd2934271:0 Louie Dakamseh crwdne2934271:0
thanks for the advice, worked wonders.
crwdns2934271:0crwdnd2934271:0 Matthew crwdne2934271:0
I'm having the same issue recently restored an iPhone 7 plus and the home home button flex cable must have been damaged i the process is their any way around this.any way to get another functional home button? and advice is much appreciated.
crwdns2934271:0crwdnd2934271:0 liam gilchrist crwdne2934271:0
Look up JC home button. There are 3 or 4 versions. So get the latest one.
crwdns2934271:0crwdnd2934271:0 JOhn crwdne2934271:0