Hi Peter,

Did this fix your ‘Mac stuck in boot mode’?

Click Restart , hold down Command-Option-R to boot into macOS Recovery 
<https://support.apple.com/en-us/HT201314?utm_campaign=website&utm_source=sendgrid%20email&utm_medium=email>,
 and reinstall the operating system. 

(Did you know that different versions of Command-R cause different versions of 
macOS to be installed by macOS Recovery? 
Check out this Apple support article 
<https://support.apple.com/en-us/HT204904?utm_campaign=website&utm_source=sendgrid%20email&utm_medium=email>
 for the details.) 

Cheers,
Ronni

13-inch MacBook Air (April 2014)
1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz
8GB 1600MHz LPDDR3 SDRAM
512GB PCIe-based Flash Storage

macOS High Sierra 10.13.4


> On 16 Apr 2018, at 1:05 pm, Peter Faulks <peterfau...@westnet.com.au 
> <mailto:peterfau...@westnet.com.au>> wrote:
> 
> 
> I wonder if anyone can help
> 
> 
> I've run into a problem with the MAC book pro - it's stuck in boot loop
> I've tried everything I know but it continues and stops when the progress bar 
> is full and remains with the Apple logo and black screen
> 
> Following the web based info disk utility and the combination of keyboard 
> prompts it returns OK to those tests
> 
> I have reloaded the disk image and also downloaded a new OS but it still 
> refuses to load (I do have a time machine backup on an external drive but 
> it's about 12 months old and I am trying not to loose last years data)
> 
> 
> Any ideas or help advice you can suggest ?
> 
> Peter
> 
> -- 
> Peter & Irene Faulks
> 
> PARKWOOD  Western Australia  6147
> 
> Email:        peterfau...@westnet.com.au <mailto:peterfau...@westnet.com.au>
> Web:  http://peterfaulks.net/
> 



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