How to Renew old domain to new domain name without any thing lossing?

So friend let us start to your blog old name change to others new domain name first of all go to the your domain providers etc.
for example your blog name www.examlpe.com you change this domain to otherwise www.example.net select domain name works don login to the blogger site go on blog setting which is blog setting you see

like this screen short edit to the see box in setting change old domain to new domain name save to see error domain not verify.
now you go to the your domain provider site manige on there some setting like examplesee you,

clicks to manage open a new window then click manage form DNS setting like this Images.

Then go back to blog setting and copy first line you look on www and xxxxxxxx this copy past back then 2 line setting see code copy past on domain provider site after this setting to most Important setting IPS 4 IP one by one copy pasta on the domain setting like this.

Where you find this IP,S on google blog setting I tell you see Image.

Click the setting Introductions open new window like this example in Image you see.

Complete DNS setting Cname or A records to save then go back on the blog blogger setting save you see you domain add on the blog.
More setting you domain and blog ,webmaster tools to next episode.