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Samsung Galaxy Ace 4 LTE (G357FZ) - Network Registration Issues & Potential Fixes

Mont3rek 3078 7
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16456342
    Mont3rek
    Level 8  
    Hello, I have a problem with the Samsung galaxy Ace 4 LTE (G357FZ) because when I try to call somewhere or write a text message, I get the error "not registered on the network". The range is the sim card also detects when I turn on automatic network detection in the settings, the error "Unable to connect to the network, try later" appears. Anyone know how to fix it?
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  • #2 16456383
    nutergsm
    Moderator of GSM  
    Have you checked the IMEI correctness? Have you checked on a different sim card? New used phone?
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  • #3 16458728
    Mont3rek
    Level 8  
    No imei displays one of the 1's / "I also checked no other cards. It is the same on each of them. Used phone. I suspect that the modem has failed, but there is no patched modem for this phone model anywhere on the network
  • #4 16459053
    nutergsm
    Moderator of GSM  
    But the IMEI is correct, or do you have only zeros? The phone may have hardware damage or may be blocked by the operator.
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  • #5 16537168
    Mont3rek
    Level 8  
    IMEI is correct, the whole number is displayed without zeros. Sim cards are not blocked in other phones it detects cards normally. The problem may be hardware or system side. A similar problem with this topic https://www.elektroda.pl/rtvforum/topic2532970.html
  • #6 16537174
    nutergsm
    Moderator of GSM  
    Mont3rek wrote:
    Sim cards are not blocked in other phones it detects cards normally.

    The operator does not block the sim card, but the phone. Check if it is calling 112.
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  • #7 16538585
    Mont3rek
    Level 8  
    Emergency numbers are working
  • #8 16538665
    nutergsm
    Moderator of GSM  
    It looks like an imei blocked by the operator.
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Topic summary

The discussion revolves around network registration issues with the Samsung Galaxy Ace 4 LTE (G357FZ). The user reports receiving a "not registered on the network" error when attempting to make calls or send messages, despite the SIM card being detected. Various responses suggest checking the IMEI for correctness, testing with different SIM cards, and considering potential hardware damage or operator blocking. The user confirms the IMEI is correct and that emergency calls are functional, indicating the problem may lie with the device rather than the SIM card or network. Suggestions include verifying if the phone is blocked by the operator and checking for hardware issues.
Summary generated by the language model.
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