ok thanks for that larger image
altho you said it before but in different ways we now have independent confirmation that device is
mt6592
Hansee X50ts
relooking at your post 10 you assert that mt6592 should handle most baseband types and
[Only registered and activated users can see links Click here to register]
appears to confirm your assertion.
unfortunately I am not a manufacturer so they might cripple it by hardware or by firmware.
Yes I know that is not an answer.
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Now back to your post where your provider claims you have a H45
Can you confirm that you did a check with them with sim in both slots pls?
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back to your true specs.....I still claim you have UTMS = 3g but only on 2100
and you need to check that box and do a full reboot
with network selected as WCDMA only
good luck