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PTTYCMD1 deleted after reboot. [Cherry Mobile Omega XL]

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Default PTTYCMD1 deleted after reboot. [Cherry Mobile Omega XL]

Phone model: Cherry mobile Omega XL
Hardware Mediate: MT6582
current ROM: MIUI
Android Version: 4.2.2 JDQ39
baseband Version: Unknown
Dual Sim
Radio State: Off

I installed terminal emulator in my phone and run the following lines:
echo 'AT+EGMR=1,7,"123456789012345"'>/dev/pttycmd1
echo 'AT+EGMR=1,10,"123456789067890"'>/dev/pttycmd1

The line above works in terms of creating the file pttycmd1 in dev folder.
So to make sure that my IMEIs' will be set, I connect my phone in my PC and run the MTK droid tools in Windows 7 then set my IMEIs there and I received no error such as " pttycmd1 is not found!" since pttycmd1 is already existing.
Then I reboot my phone. But, the problem still occurs. My IMEIs still null, my radio is turned off and my baseband version is unknown.
I've checked the dev folder and again the pttycmd1 has been removed. Before I reboot my phone, I even changed the permission to read and execute only. But it was gone.

I've done the steps above 3 times but still no luck.
I was not able to backup my stock ROM.
I've previously posted the details of what happened to my phone. see thread below:

I've attached the screenshots of the terminal emulator and the dev folder where you'll see the pttycmd1 before it was removed.
See screenshots below:
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philos64's Avatar
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One of my colleague already answered you in one of your several posts.
I close this thread

Thanks in advance
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