Samsung S10 Invalid Sim

sibipaul

    Dear T-Mobile...

     

    I purchased a Samsung s10 a few months before, and I was using it on T-Mobile.

     

    now I came back to India and when I inserted the Indian SIM Phone says Invalid Sim.

     

    when I searched on Google about this, I came to Know its a Network Lock.

     

    I found an application named as Device Unlock, I opened and Tap on Unlock, Then it not Unlocks.

     

    then I searched online and found a few websites offering an unlock service for this problem.

     

    they asking money for that. but when I bought the phone, the executives said T-Mobile will unlock it if I requested.

     

    So, My Query is how to contact T-Mobile for this unlocking.

     

    or

     

    Should I go for the Unlock service offered by third party websites?

     

    T-Mobile USA Device Unlock App - Official Device Unlock App

     

    Kindly do a reply and help me to fix this as soon as possible.

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