HONOR 500 Pro China Version 5G Not Working in Bangladesh

I am using the HONOR 500 Pro (MEP-AN00, China version) with the latest MagicOS 10.0.0.170. 5G is enabled, but the phone never registers on 5G in Bangladesh. I tested Grameenphone, Robi and Banglalink. The same SIM registers 5G on other phones in the same location. NetMonster and CellMapper also show LTE only. VoWiFi is also missing from Settings.
Is anyone else using the HONOR 500 Pro China version facing the same 5G/VoWiFi issue outside China? Please share your experience. I hope HONOR can add Bangladesh carrier support through a future update.

楼主您好，有关注到您的问题，请先确认您目前的手机是否为5G手机、所在城市区域是否有5G网络覆盖，且确认是主卡无5G图标或副卡无5G图标后按照以下方案排查，若是主卡无5G图标：
1.确保所使用卡的SA功能开户：有些卡SA功能未开户，请联系运营商确认所使用卡的SA功能已经打开，卡办理SA功能开通后可能要一段时间后才能生效，具体情况请咨询运营商。
2.建议开通VoLTE业务：若开通了5G套餐，请联系运营商开通VoLTE 高清通话业务。开通了5G套餐后未开通VoLTE 高清通话业务可能会影响5G网络注册。
更多方法辛苦您移步官网进行查看https://www.honor.com/cn/support/content/zh-cn00741028/
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Hello, thank you for your response.

I am currently located in Bangladesh, which is an overseas market outside China. Mobile operators in Bangladesh currently support 5G NSA, so my testing is focused on 5G NSA registration rather than 5G SA.
I am an experienced Field Test Engineer with practical experience in mobile device field testing. Before contacting HONOR, I have already completed the first-stage basic troubleshooting, including:

1. Confirmed that the device is a 5G model and that 5G is enabled.
2. Confirmed that there is 5G coverage at my current location.
3. Using the same Grameenphone SIM card at the same location, another 5G smartphone successfully registers on 5G NSA.
4. I tested Grameenphone, Robi, and Banglalink, and none of these operators can register 5G on the HONOR 500 Pro.
5. VoLTE is working normally.
6. I used NetMonster and CellMapper for network testing. The device consistently shows only LTE and does not register on NR.
7. The phone is the MEP-AN00 China version with original factory firmware. It has never been rooted, unlocked, or flashed, and it is currently running the latest MagicOS 10.0.0.170.

Therefore, the first-stage checks for the SIM card, package, 5G coverage, VoLTE, and basic network settings have already been completed. I believe the next step should be to investigate the overseas carrier configuration, 5G NSA compatibility, and Modem/Carrier Policy configuration of the China-version firmware.

Could the HONOR engineering team please confirm whether the MEP-AN00 China version supports 5G NSA for Bangladeshi operators such as Grameenphone, Robi? If these services are currently not supported, will HONOR add the required overseas carrier configurations through a future software update?

I can provide NetMonster/CellMapper logs, field-test screenshots, and other test data if required to assist the engineering team in investigating the issue.

Thank you.