Q: iPhone 4 OS 7.1.2 (11D257) display normal when switching on, turns to very high contrast primary colours only, no tonal graduation ... iPhone 4 OS 7.1.2 (11D257) display normal when switching on, turns to very high contrast primary colours only, no tonal graduation. Wifi no longer works. more
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Helpful answers
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Jan 1, 2015 5:54 AM in response to brunoandlottieby Ingo2711,To rule out a software issue, set it up as new device, explained here:
Use iTunes to restore your iOS device to factory settings - Apple Support
If still problems after that, get it checked by an Authorized Appel Service Provider or Apple Store next to your place, or contact Apple Support to get it serviced:
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Jan 1, 2015 6:34 AM in response to Ingo2711by brunoandlottie,Thanks for the suggestion. I sync'd with the iMac. I have tried repeatedly to turn off 'Find my phone'. The phone shows it switched off, but when I ask Tunes to restore, it tells me I need to switch off 'Find my phone'. Next I get "Cannot connect to iTunes" on the phone, followed by "Identification failed. The request timed out". And I am using the correct Apple ID Password - if I wasn't, I wouldn't have access to this discussion thread. I am allowed to 'retry' but to no avail. And when I switch the iPhone back on, lo & behold, 'Find my phone' is still active (see note above re my trying to switch it off several times. I think I will have to put my hand into my pocket and resort to professional help!
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Jan 1, 2015 6:51 AM in response to brunoandlottieby Ingo2711,★HelpfulTo deactivate "Find my phone" you can also log into your iCloud account in Safari on the Mac, open "Find my iPhone", select your device and click on "Remove from Find my iPhone".
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Jan 1, 2015 7:27 AM in response to Ingo2711by brunoandlottie,Thanks. Seemed to be working - deactivated 'Find my phone' in iCloud, switched phone back on, it was displaying "Turning Off Find My iPhone...", but then went to "Cannot Turn Off Find My iPhone. There was a problem deregistering this iPhone with iCloud. Try turning Find My iPhone off again".
I assume that's because I deregistered it in iCloud to which I have just returned and the iPhone is definitely no longer listed. Will now try the restore in iTunes.
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Jan 1, 2015 8:31 AM in response to brunoandlottieby brunoandlottie,I was able to complete the process, it did not resolve the original issue of the screen display. I therefore conclude it is a hardware issue. I am now restoring from the pre-factory setting mode from the iMac, but it looks as if I have 'lost' my photos and texts. I can live with that!
Thanks for your help, Ingo2711
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Jan 1, 2015 9:21 AM in response to brunoandlottieby brunoandlottie,And "all" is not lost because it looks as if I have WiFi back!
Thanks again.....
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Jan 1, 2015 10:30 AM in response to brunoandlottieby Ingo2711,You're welcome
In case you don't want to buy a new iPhone, Apple will replace the whole unit if you are willing to pay the service fee of 149$ for the iPhone4.
Out-of-warranty repair service
If your repair isn’t covered by Apple’s One Year Limited Warranty, AppleCare+, or AppleCare Protection Plan, your iPhone might be eligible for out-of-warranty service. For example, liquid damage isn’t covered by warranty but might be eligible for out-of-warranty service. Some damage isn’t eligible at all, for example if your device has been broken into multiple pieces. See Apple’s Repair Terms and Conditions for complete details.
Read Apple’s Repair Terms and ConditionsModel Out-of-warranty service fee Battery service* iPhone 6 Plus $329 $79
*available only if battery
fails Apple’s diagnostic testiPhone 6 $299 iPhone 5s, iPhone 5c, iPhone 5 $269 iPhone 4s $199 iPhone 4, iPhone 3GS, iPhone 3G,
Original iPhone$149 Plus a $6.95 shipping fee, if required. Fees are in USD and exclude local tax. Pricing is for service through Apple. The final service fee we charge will be determined during testing and may be less than the service fee listed above. Pricing and terms vary for service through an Apple Authorized Service Provider.
copied from Service Answer Center - iPhone