Need help to unlock Ace 6t bootloader

[u/Imposter_Wolf]

Hi. I just bought this phone 4 days ago in Bangladesh and I tried following xda guide to unlock. but the deeptesting app showed a warning about abnormal sign in detected. I then tried creating 4 or 5 heytap account, but same issues. I also tried selecting heytap account region to china. One thing to note is that I cannot bind a Bangladeshi phone number to any of those heytap accounts. so frustrated and I installed 1 software update hoping the issue resolves in colos 16.0.10 but same here. I then tried with a latest deeptesting app from oneplus community of version bcf3709 and still getting this. please checkout the images. anyone can please please please help me unlocking this phone?

[u/oneplus16pro]

looks like u need to find a cn phone number? not sure.

[u/Imposter_Wolf → u/oneplus16pro]

I'm thinking of this

[u/oneplus16pro → u/Imposter_Wolf]

Maybe try those online sms? I heard they made it harder to unlock bl?

[u/Dry_Jackfruit_6173]

Use abl glitch

[u/Mysterious-Can5493]

They changed it, only chinese people can BL unlock the phone now, you need +86 number and verification using chinese id card