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I have a samsung j1 ace sm-j111m

If I start it without a sim installed it doesn't display the 'no sim' warning

If I start it with a sim installed it doesn't change the top icon for a sim being installed.

I've tried the online guides, ping tests fail and no luck I've tried using the sim card info app and it discovers the sim info and voicemail notifications come up

Thoughts? Possible fixes?

  • Hardware issue probably? Or is this phone locked to a particular network? – esQmo_ Aug 20 '17 at 8:00
  • I'm beginning to think that but it's not locked as the code screen doesn't come up with any screen so I'm assuming it isn't locked to any network – Navin Harbajan Aug 20 '17 at 13:47
  • Sometimes the lock screen doesnt come up. But okay let think it's hardware related then. – esQmo_ Aug 20 '17 at 13:48
  • I'm not really sure but as the sim card info app reads the card data I don't think it's hardware. I think it has to do with whatever part of the Droid os has to deal with detecting no sim card installed – Navin Harbajan Aug 20 '17 at 16:15
  • Can you check if IMEI is still present (*#06#)? I'm starting to think there might be something wrong with the modem. – esQmo_ Aug 20 '17 at 16:31
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Have you installed a custom rom? Sometimes custom roms can give this sort of problem. If you are using a custom rom revert back to the stock rom.

  • I've re flashed 2 different versions of the stock rom and no luck – Navin Harbajan Aug 20 '17 at 13:45
  • Was it for your own model? I had the same problem when I flashed an update for devices based on UK and around that region. – Ashish Kafle Aug 20 '17 at 15:01
  • Yes correct model but I've no way of telling it's original country so I flashed all the roms for my country and no luck – Navin Harbajan Aug 20 '17 at 16:13
  • Did you create a nandroid backup of your original stock rom? If so you can restore your system using it. – Ashish Kafle Aug 20 '17 at 16:46
  • No I haven't it's been doing this since I've gotten the phone second hand – Navin Harbajan Aug 21 '17 at 19:45

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