bbs.blackview.com

in my country (Turkey) wait for 4 months for buying a bv9800pro (for thermal camera). but they didnt bring it and virus make it more difficult to buy. so i buy it from Bulgaria. 
i must change imei (registired in Turkey) to use it.
for couple days i try everything on net but cant do it either root.
is there a info that i read and do it my phone?
new imei will come from my very old phone samsung s3 neo. is it ok?
thanks a lot for answers

polatturk wrote:

in my country (Turkey) wait for 4 months for buying a bv9800pro (for thermal camera). but they didnt bring it and virus make it more difficult to buy. so i buy it from Bulgaria. 
i must change imei (registired in Turkey) to use it.
for couple days i try everything on net but cant do it either root.
is there a info that i read and do it my phone?
new imei will come from my very old phone samsung s3 neo. is it ok?
thanks a lot for answers

Hello, Polatturk, sorry to make this inconvenience, You'd better contact our professional after-sale department to deal with the problem: support02@blackview.hk

thanks admin, i emailed them and they answer. want my version number and said they will help me.
regards

after-sale department send all i needs and imei changed. thanks a lot.