You really want to know more?
Well, I'm a total geek (but hey, you're reading this, right?)
I own a 15" top spec, Late 2013 rMBP, as well as an iPhone 5 and iPad Mini. Previously, had a Late 2009 MBP, iPhone 4, iPod Touch 2nd Gen, and iPad 1. Early adopters FTW.
I run a small part-time business repairing devices and fixing computers in the local community.
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Réponse à : « iTunes error -1 while restore »Hi. First thing you can do is check out this general troubleshooting page: http://support.apple.com/kb/TS3125 If there is nothing there that helps fix the problem, unfortunately, there is no better answer than you'll have to send it to Apple for fixing. Regarding the last question there; Hardware, mainly the ROM, is updated from time to time when major iOS updates are release. It is a very rare occurrence, but it can happen, and it does happen. Apple are the only people that can help you with this problem.
Réponse à : « After replacing iPhone 4S screen, I cannot hear phone calls »Hi Paul, I know it'll be inconvenient, but you may want to check for any loose cables inside the iPhone. IIRC Correctly, Sound Recorder and Voice Memos uses the top microphone as well as the bottom one which is why you will be able to hear yourself in a recording, but phone calls use just the bottom one for voice, and the top one is uses for noise cancelling using the Audience chip, so the person on the receiving end won't be able to hear you. Also, there may be a loose connector for the earpiece speaker. Following this guide, remove the front assembly, making sure to pay attention to the ribbon cables and not to damage them (Yes this might seem counter productive, but it's for the best! (Fixed iPhone!)). Then, check the connection of all the cables, and replace the assembly. (Follow that guide in reverse) Then, do a test call with a friend to make sure the problem is resolved. Hope this helps get your iPhone 4S back in shape!! -Chris P