Lenovo a3000 invalid IMEI. - A3000 General

Hi
I flashed my a3000-h with this ROM https://forum.xda-developers.com/t/rom-kitkat-4-4-2-v3-0-0-lenovo-a3000-h-stable-version.3414278/
but after that 3G conectivity work only until to another restart. Then some sugestions from internet said to try this situation with:
a)
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or b)
{ISSUE FIXED} Lenovo IdeaTab A3000-H IMEI Problem
Dear Friends, I have Flashed the latest " A3000_A422_000_006_130517_WW_CALL " Firmware. Now My Tab is Not Showing any IMEI numbers. When i check through *#06# the imei display dialog box Both IMEI Fields showing INVALID IMEI. Also I cannot Make...
forum.xda-developers.com
or c)
{ISSUE FIXED} Lenovo IdeaTab A3000-H IMEI Problem
Dear Friends, I have Flashed the latest " A3000_A422_000_006_130517_WW_CALL " Firmware. Now My Tab is Not Showing any IMEI numbers. When i check through *#06# the imei display dialog box Both IMEI Fields showing INVALID IMEI. Also I cannot Make...
forum.xda-developers.com
but none of the above worked so I flashed back with
https://forum.xda-developers.com/t/...000_a422_011_022_140127_ww_call_fuse.2441135/ which is original ROM or quite close to original ROM but i still have no IMEI and 3G access.
Is there any way to somehow fix this problem?, I mean invalid IMEI problem and no 3G connectivity?
I've tried this:
AT+ EGMR=1,7,"xxxxxx"
where xxxxxx is my IMEI but I usually get failed to send command or something like that and even if message says that mSend successful I still have no valid IMEI.
Restoring IMEI on the Lenovo Tab A7-30 (A3300HV) - Bernardo's Bag of Beans
My recent experiment in flashing the Chinese firmware for my Lenovo Tab A7-30 to the European version resulted in an error in the IMEI or International Mobile
bernardosbagofbeans.com
ps
Sorry for my English.
Best regards.

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Ismail cheikh said:
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Click to collapse
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