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Old 03-13-2010, 18:24   #1 (permalink)
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MT6235 (M008) IMEI problem - 15th figure


Hello infinity, first I have to say thanks for this great box, it helps a lot But to the problem:

What is the deal about that last (15th) figure of IMEI number?

Problem is that I have formated ffs (safe method) on few MT6235 WiFi M008 phones, so I have to write back two original IMEI numbers.
But when I fill out those 14 figures in service tab (CM v3.10 btw), the last figure fills out automatically, but does not match the number on the phone's sticker (and "inside" phone, I did "read general information" before formatting).

When I try to write both IMEI with mode-1, it works, but that 15th figure is written automatically, even if I rewrite it.

Example:
Code:
Original IMEI #1: ...12401
Original IMEI #2: ...18601

Auto-filled IMEI #1 in CM: ...12403
Auto-filled IMEI #2 in CM: ...18608

formating ffs..
writing IMEI #1 and #2 (filled ...12401 and ...18601)..

result:
phone IMEI #1: ...12403
phone IMEI #2: ...18608
But even more, when I write one of IMEIs with mode-2, it automatically fills out the other IMEI somehow:

Code:
write IMEI #1 ...12401

result:
phone IMEI #1: ...12401
 phone IMEI #2: ...20265


Or even:

write IMEI #2 ...18601

result:
phone IMEI #1: ...18601
 phone IMEI #2: ...18608
I would not like to leave those phones with another IMEIs than original ones. Please, any solution?


P.S.: mode-3: "method is not supported yet"
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Old 03-13-2010, 19:00   #2 (permalink)
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Quote:
Originally Posted by hf_mode View Post
[CODE]

write IMEI #1 ...12401

result:
phone IMEI #1: ...12401
phone IMEI #2: ...20265
MISTAKE: does not matter #2 IMEI in that example, i took another phone in that part..

So to set this right, the IMEI #1 can be written OK with mode-2, but when I try to write second IMEI with mode-2, it results as I have already written:
Code:
write IMEI #2: ...18601

result:
phone IMEI #1: ...18601
phone IMEI #2: ...18608
And if I write any IMEI with mode-1, it always results with wrong 15th figure. Sorry for making mess a bit..
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Old 03-13-2010, 21:24   #3 (permalink)
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hello!

situation is following. Last digit is not random, just any which you wish.
it must be calculated by spcial algo called "Luhn algo"
here you can find information about it:
Luhn algorithm - Wikipedia, the free encyclopedia
this is why our software calculate it itself

last IMEI digit in your examples is not correct, probably chinese guys do not pay much attention to this
more about correct IMEI structure you can read here:
International Mobile Equipment Identity - Wikipedia, the free encyclopedia
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Old 03-14-2010, 13:40   #4 (permalink)
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I thought it is something like that, thanks for explanation. China guys obviously don't care about it, but I do and now I'm confused of how to solve this..
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Old 03-14-2010, 18:11   #5 (permalink)
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hello!

i would advice to leave last digit as our program set it.
some network may refuse phone to work if last digit is incorrect
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