I'm having similar symptoms and also this all started on 12/02. My iPhone 7 (32 Gb) got stuck after receiving WhatsApp notifications and trying to make a call, I forced a restart and after that the phone got stuck on the boot apple logo.
After this, I was able to put it into DFU mode and in normal restore mode in order to apply the newest firmware at the time, I believe was 11.1.2. Nothing worked, not even going one firmware version down. My device is out of warranty and I don't have AppleCare so I'm stuck with this iBrick.
However yesterday when the 11.2.1 came out, I put the device in DFU mode, installed FW and OMG! the iPhone turned on, however it was laggy, it was as if every popup window made it slower or took time to response, so I did a restart and the stuck in apple logo boot came back. So I redo the steps, plugged iPhone to the computer without the SIM, enter DFU mode, install 11.2.1, wait for iTunes to tell me there was no SIM installed, put back the SIM, closed iTunes, open iTunes and again, the iPhone came back but again with the laggy screens, I had to select almost all the default options in order to avoid pop up windows, and finally was able to see the springboard, since yesterday I've left it plugged but I haven't restarted it, since I'm pretty sure this will cause the boot logo to come back.
The iPhone is functional at certain level, every time you try to volume up or down, it freezes, if you bring up the command center, it freezes up, if you change the light level it freezes up, but just for about 30 seconds, then it does what you asked it to do, even unlocking the phone with TouchID takes time to accomplish, camera does not work at all, but other apps allow me to use them as long as no popup is needed, for example, asking for permission to access my location in maps.
So at this point I'm not sure if this is a SW error or a HW error or both, but what is strange is that I've heard similar cases with this apple boot logo stuck issue, actually yesterday since I was in my local Apple Reseller shop, another guys came with a iPhone 7 Plus with this same issue.
Recommendations? Thoughts? Anything is welcome.
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=== Update (12/20/2017) ===
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I'm still having the same issues, slow responsiveness, any notification window will lock the iPhone and if I reboot it, it get's stuck again in the boot logo and the only way to get it out is doing a DFU restore.
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According to a tech guy that repairs iPhones, he still thinks this is a software error that could be fix with an update from Apple, but honestly I don't think so.
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Anyway, looks like a new iOS 11.2 has been sent to the developers and I guess we will be seeing an update soon to see if that makes the trick.
I'm having similar symptoms and also this all started on 12/02. My iPhone 7 (32 Gb) got stuck after receiving WhatsApp notifications and trying to make a call, I forced a restart and after that the phone got stuck on the boot apple logo.
After this, I was able to put it into DFU mode and in normal restore mode in order to apply the newest firmware at the time, I believe was 11.1.2. Nothing worked, not even going one firmware version down. My device is out of warranty and I don't have AppleCare so I'm stuck with this iBrick.
However yesterday when the 11.2.1 came out, I put the device in DFU mode, installed FW and OMG! the iPhone turned on, however it was laggy, it was as if every popup window made it slower or took time to response, so I did a restart and the stuck in apple logo boot came back. So I redo the steps, plugged iPhone to the computer without the SIM, enter DFU mode, install 11.2.1, wait for iTunes to tell me there was no SIM installed, put back the SIM, closed iTunes, open iTunes and again, the iPhone came back but again with the laggy screens, I had to select almost all the default options in order to avoid pop up windows, and finally was able to see the springboard, since yesterday I've left it plugged but I haven't restarted it, since I'm pretty sure this will cause the boot logo to come back.
The iPhone is functional at certain level, every time you try to volume up or down, it freezes, if you bring up the command center, it freezes up, if you change the light level it freezes up, but just for about 30 seconds, then it does what you asked it to do, even unlocking the phone with TouchID takes time to accomplish, camera does not work at all, but other apps allow me to use them as long as no popup is needed, for example, asking for permission to access my location in maps.
So at this point I'm not sure if this is a SW error or a HW error or both, but what is strange is that I've heard similar cases with this apple boot logo stuck issue, actually yesterday since I was in my local Apple Reseller shop, another guys came with a iPhone 7 Plus with this same issue.
I'm having similar symptoms and also this all started on 12/02. My iPhone 7 (32 Gb) got stuck after receiving WhatsApp notifications and trying to make a call, I forced a restart and after that the phone got stuck on the boot apple logo.
After this, I was able to put it into DFU mode and in normal restore mode in order to apply the newest firmware at the time, I believe was 11.1.2. Nothing worked, not even going one firmware version down. My device is out of warranty and I don't have AppleCare so I'm stuck with this iBrick.
However yesterday when the 11.2.1 came out, I put the device in DFU mode, installed FW and OMG! the iPhone turned on, however it was laggy, it was as if every popup window made it slower or took time to response, so I did a restart and the stuck in apple logo boot came back. So I redo the steps, plugged iPhone to the computer without the SIM, enter DFU mode, install 11.2.1, wait for iTunes to tell me there was no SIM installed, put back the SIM, closed iTunes, open iTunes and again, the iPhone came back but again with the laggy screens, I had to select almost all the default options in order to avoid pop up windows, and finally was able to see the springboard, since yesterday I've left it plugged but I haven't restarted it, since I'm pretty sure this will cause the boot logo to come back.
The iPhone is functional at certain level, every time you try to volume up or down, it freezes, if you bring up the command center, it freezes up, if you change the light level it freezes up, but just for about 30 seconds, then it does what you asked it to do, even unlocking the phone with TouchID takes time to accomplish, camera does not work at all, but other apps allow me to use them as long as no popup is needed, for example, asking for permission to access my location in maps.
So at this point I'm not sure if this is a SW error or a HW error or both, but what is strange is that I've heard similar cases with this apple boot logo stuck issue, actually yesterday since I was in my local Apple Reseller shop, another guys came with a iPhone 7 Plus with this same issue.
Recommendations? Thoughts? Anything is welcomed.