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Yesterday i've decided to check some of the custom ROMs for my Sony Xperia Acro S. With locked bootloader i installed a CWM Recovery and flashed a ROM.

The ROM Worked and the signal worked and i've made few calls to check if it is working or not.

i decided to check another ROM, it caused a bootloop. so by using the Flashtool i flashed the stock ROM again and installed the recovery again and flashed the first Custom ROM again to check it out more.

Sadly, the mobile says "Emergency call only" and " No SIM detected ". i tried the SIM card on another phone and it's working.

so, i flashed the STOCK ROM that i used to flash many times and it should be 100% working, but NO, The problem is still there.

when i check for the IMEI number by the * # 06 # it says "no newtork connection "

I Can't find a solution online, so please help me.

TL;DR

Things i have made before the problem:

  1. Flashed a Custom ROM had a bootloop, Flashed the Stock ROM and then Flashed another Working Custom ROM.

Things i have made trying to FIX:

  1. Flashed the 4.1 Stock ROM.
  2. Flashed the Old Android 4.0 ROM and updated it via Sony's PC Companion.
  3. Checked the IMEI Number = fail to find and it says "No Network Connection"
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  • look under settings > about phone search for modem version or radio version ,tell me whaat it say
    – Rachid Boudjelida
    Jul 13, 2015 at 23:26
  • I Can't find " modem version or radio version", but here is an album of screenshots of my "settings > about phone" : imgur.com/yIxlCej,ZpVp51n,1KkVQgz
    – Sherif Abdel-Naby
    Jul 14, 2015 at 0:39
  • and here is the #*#INFO#*# Screenshot : imgur.com/J0EN10S
    – Sherif Abdel-Naby
    Jul 14, 2015 at 0:50
  • yes my apologies on sony it's called "baseband version" I am currentlly reading more about your device will be back in a few
    – Rachid Boudjelida
    Jul 14, 2015 at 0:51
  • is your phone bought unlocked or did you unlocked it ? I am talking about the simlock not the bootloader
    – Rachid Boudjelida
    Jul 14, 2015 at 1:24

1 Answer 1

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EDIT: This fix was temporary. The problem returned the next day. Sorry.

After I flashed Cyanogenmod 12.1(upgraded to lollipop) to my nexus 5 I had the "no Sim Card". It is a very popular problem for this ROM or Lollipop in general. I try shimming the sim, Updating PRL etc... and nothing was working.

Here is what I think finally fixed it for me:

In dialer keypad: *#*#72786#*#* (this will wipe the carrier settings)

reboot if your phone didn't automatically. Your phone will go through activation in about 5 minutes, re-gathering the correct carrier settings just like when you first bought it.

Tip was found here: https://help.ting.com/hc/en-us/articles/205428508-Completing-Activation-for-Your-Nexus-5-or-6

Hope this helps someone, anyone.

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2
  • Did not work for me on Xperia SP, even temporarily
    – Alexandre Bourlier
    Jan 23, 2016 at 18:55
  • Did not work for me on Huawei Y5 2017 MYA-L13 HWMYA-L6737, even temporarily
    – Metafaniel
    Sep 5, 2021 at 4:41

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