argoscrete Posted August 29, 2018 Share Posted August 29, 2018 This follows on from previous thread about Internet banking. I cannot use the kasikorn mobile app because it demands I connect for first use using 4G. My One Plus 5 phone simply will not work using 4G.i have taken it to DTAC, repair shops, asked everyone I know, but to no avail. Can anyone offer any helpful advice & suggestions please. Many thanks. Link to comment Share on other sites More sharing options...
jarski Posted August 29, 2018 Share Posted August 29, 2018 I have this phone. go settings, sim & network, and choose preferred network type. Check also you have mobile data on in same page. Link to comment Share on other sites More sharing options...
jackdd Posted August 29, 2018 Share Posted August 29, 2018 How old is your sim card? If it's a few years old it might not support 4G, you can exchange it for free at any DTAC shop. Link to comment Share on other sites More sharing options...
argoscrete Posted August 30, 2018 Author Share Posted August 30, 2018 Thank you for your help. I have tried these solutions - and neither was successful. I have will keep trying. Link to comment Share on other sites More sharing options...
Mellowguy Posted October 9, 2018 Share Posted October 9, 2018 Hey, You need to remove your sim, and factory reset your phone. And then use the new sim and it will work. I know crazy, but have been there and done that. Hope it helps !! Link to comment Share on other sites More sharing options...
2008bangkok Posted October 10, 2018 Share Posted October 10, 2018 Maybe you need to check the Dtac mobile network network gateway (APN) and make sure its correct gateway name should be just Dtac or www.dtac.co.th Link to comment Share on other sites More sharing options...
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