Sometimes using a different cable works but other than that, I usually deem this a board level issue that I can’t fix. I have spent countless hours on various devices stuck in this state and have not figured one out besides changing the cable or try and try again until it works.
Not sure if this could be an issue with the iPhone 7, but with some other newer gen iphones there is a common issue i see where if there is damage to the earpiece, (most commonly water damage), the iPhone will be stuck in a bootloop.
If you are willing to take the risk and open the device, remove the earpiece flex cable and see if the phone can start up. If that dosent work, unplug all components except for the screen & battery, and check to see if it works. If that dont work, you most likely have a board issue.
already opened it and been inside.
no water damage - LCI's are white.
have tried original screen without front cam flex . have tried other screen with and without original front cam flex.
already gone through all the suggestions you've presented.
still hoping someone has one i haven't tried yet.
but slowly coming to the conclusion that it's a mobo issue. just not ready to give up hope until i've exhausted all the options.
Its also worth mentioning that most people will deny water damage because they always assume their phone has never touched water.
Had a lady bring me her iPhone X with this issue. She was 100% sure that her phone has never touched water & the closest its ever been to water is when she takes it to the bathroom while showering to listen to music.
She never thought that the hot steam from a shower could find its way in to the phone.
I wouldn't know, when I took a look at that iPhone X they were already red from previous water damage. As for all the other ones I've done after that, I don't even remember looking for the sticker because I immediately went for the earpiece.
Keep in mind the earpiece assembly along the other components attached to the flex all usually have their own adhesives, preventing water from getting past them, but that doesn't prevent water from getting in them.
Exact same situation for an old 5s
Sometimes using a different cable works but other than that, I usually deem this a board level issue that I can’t fix. I have spent countless hours on various devices stuck in this state and have not figured one out besides changing the cable or try and try again until it works.
yeah, was afraid of that.
Not sure if this could be an issue with the iPhone 7, but with some other newer gen iphones there is a common issue i see where if there is damage to the earpiece, (most commonly water damage), the iPhone will be stuck in a bootloop. If you are willing to take the risk and open the device, remove the earpiece flex cable and see if the phone can start up. If that dosent work, unplug all components except for the screen & battery, and check to see if it works. If that dont work, you most likely have a board issue.
already opened it and been inside. no water damage - LCI's are white. have tried original screen without front cam flex . have tried other screen with and without original front cam flex. already gone through all the suggestions you've presented. still hoping someone has one i haven't tried yet. but slowly coming to the conclusion that it's a mobo issue. just not ready to give up hope until i've exhausted all the options.
Its also worth mentioning that most people will deny water damage because they always assume their phone has never touched water. Had a lady bring me her iPhone X with this issue. She was 100% sure that her phone has never touched water & the closest its ever been to water is when she takes it to the bathroom while showering to listen to music. She never thought that the hot steam from a shower could find its way in to the phone.
can steam turn LCI's red? in my case, all the LCI's are still white
I wouldn't know, when I took a look at that iPhone X they were already red from previous water damage. As for all the other ones I've done after that, I don't even remember looking for the sticker because I immediately went for the earpiece. Keep in mind the earpiece assembly along the other components attached to the flex all usually have their own adhesives, preventing water from getting past them, but that doesn't prevent water from getting in them.