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I have a Huawei Ascend Y300 running on Jelly Bean and I can't get any diagnostic code to work on the dialer... The only thing that works is the code for displaying the IMEI: *#06#

Every time I enter a diagnostic code like *#*#4636#*#* or anything else, it merely continues to display the dialer. :-/

I've tried looking for the stock Jelly Bean dialer but I haven't had any luck. How do I fix this?

  • Can you try this code *#*#2846579#*#*. Does it work on your phone? – geffchang Oct 2 '13 at 7:44
  • @geffchang: Yes! I got a Testing menu with 2 options: MMITest_II ProjectMenu – Cyber-Logic Oct 2 '13 at 7:47
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    Well then, it looks like there's nothing wrong with your phone or your dialer. Maybe your phone just doesn't support the *#*#4636#*#* code. Some diagnostic codes are for specific phones only. – geffchang Oct 2 '13 at 8:50
  • Well... I thought it was odd that only one code was working. None of the other codes work from these lists, except for the one you mentioned: plusdroid.com/Blogandnews/… askvg.com/google-android-hidden-secret-codes – Cyber-Logic Oct 2 '13 at 9:25
  • Is this what you're looking for? *#*#6130#*#* – user60818 May 16 '14 at 13:09
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It's possible that your phone does not support the code. If you look at one of the comments in the askvg link you shared in the comment, one user says: LCD TEST Does not work for Galaxy S2. However, another user replied that it is supported, but with a different code.

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