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  • Dudu7 SIM card issue, no internet ( no data connectivity)

Hi I am from India. I am facing s strange issue with Dudu7 SIM data connectivity

Tested with 3 main mobile operator sim cards in india . All SIMs are getting detucted by Dudu7 unit and showing full signal and below is the difference

1st operator sim card always showing disconnected.

2nd operator sim gets disconnected when wifi network not avaliable. Mobile netword showing connected when wifi connected

3 rd operator sim always showing connected but no internet / no data access. Tested this sim in mobile phone and working fine in mobile

Unit updated with latest OTA update. What can be the issue. Any idea how to resolve this

For some carriers, additional APN settings are required, so it is recommended to call the carrier to see if special settings are needed.

    DUDU-HUANG thanks frìend. I will contact mobile Carrier regarding additional settings ( for the 3rd case). Other two are not even getting connected properly.

    Try to use the APN of your phone. I had to do this to get 4G when roaming

      JhonnyD Thanks frìend. I have varified APN details in mobile. APN details in mobile and Dudu7 are same. Sim woks fine in mobile and no data in Dudu7. I need to contact mobile Carrier if I required to enter any additional details like proxy etc

      Tested with multiple operator SIMs available in India. Called mobile operators for additional settings. But nothing helped. Dudu7 not having internet connectivity. Dudu7 is detecting all sim and showing full signal. But no internet. Is it a software bug or hardware issue. ( same sims are working fine in other Android car Unit bought from Indian online sites, which are also manufactured in China and imported to India)

        2 months later

        BaijuJoseph Did you get data working on your dudu7 sim

        Look at your phone and compare the APN.

        If it's not the same, edit it to the head units APN.

        2 months later

        Bonjour, c'est pareil pour moi, j'ai bien l'icône 4G avec les barrettes, mais pas de connexion Internet
        Même avec les apn copier sur le téléphone
        france
        operateur orange
        dudu7
        hello, it's the same for me, I have the 4G icon with the bars, but no Internet connection
        Even with the APNs copied to the phone
        France
        orange operator
        dudu7

        Have you removed pin from Sim card?

        Hello, yes everything was done in order
        I had an atoto s8 ultra with the sim card, it worked very well

        Bonsoir, c'est bon, j'ai réussi. J'ai effacé les apns et j'en ai refait des nouveaux
        donc il ne faut pas corriger les apns existant, il faut les supprimer

        Good evening, it's okay, I succeeded. I deleted the apns and made new ones
        so you should not correct existing apns, you should delete them