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M8/M9 Self help... (how to)

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17: Community Champion

If you suspect something isn't working right with your HTC M8/M9 Phone, there is a built in Service menu that can help you test the fault yourself.

This could help you get a quicker repair or even help you solve the problem yourself...

 

Open the Phone App and paste the following Service code:

*#*#3424#*#*

 

Screenshot_2015-04-04-15-55-28.png

 

Tap on the Accept button to agree and proceed to the Service menu.

 

You will then have access to 2 screens of diagnostic tests.

All the tests are safe with full on screen instructions given.

Screenshot_2015-04-04-15-55-44.png

 

Screenshot_2015-04-04-15-56-13.png

Hope this helps you solve any issues you are having?

 

TSD 😉

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4 REPLIES 4
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17: Community Champion
Great find TSD 😃
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17: Community Champion

Thanks 63johnw, if you have need to use any of the tests in the future it would be great if you could share your experience.

 

If anyone else uses this service menu, please share your experience here; it might help someone else... 😉

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17: Community Champion
Just done the battery test on an M9, followed the instructions and it worked just fine, battery passed the test too !
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17: Community Champion
That's good news 63johnw, just for everyone else reading this; 63johnw's phone was turning off even with a full charge. The phone needed to be charged for a full day before it would restart.
The issue could be a symptom of hardware (battery) or software.
This test has helped to rule out a battery fault, the next step will be to look at software.

🙂
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