LTE bug after marshmallow update,Xperia m4 aqua e2333

[Amini]

hi all 

im facing an issue after wifi issue.

the issue is i have no LTE signals on new update marshmallow.

when im in lollipop, my 4G was fine. im update the firmware with my 4G connection after updated there is no signals and doesn't match 

 it's new issue on new update Marshmallow 

i have change my simcard in other device, the 4G was fine and got no problem.

Overall I can't change WCDMA(3G) to GSM(2G) or WCDMA(3G) to lte(4G)

please help what should i do, because in lollipop i have got no issue with 4G connection.

my device: xperia m4 e2333

[Amini]

It finds LTE networks but couldn't register

[Amini]

Please help me 

It's a boring problem

[Jonas]

Hi @Amini, sorry for the late reply and sorry to hear about your phone.

As I mentioned in a PM to you. Could you try to remove your SIM card and insert it again in your phone and do a new network search and see if you are able to connect to them? You can also try another SIM card in your phone if one of your friends, colleagues or family members have the same size on their SIM card!

If you can take a screenshot of the preferred network type menu that would also be much appreciated if the above doesn't solve the troubles.

What I'm interested in is if you are able to put the device to 4G/LTE (preferred).

Let me know how it goes!