Boot into the Recovery volume (boot with the Command + R keys held down) and reinstall the system from there using your old Apple ID as Eric suggested:
NOTE 1: there's no need to erase your hard drive if you just want to change your Apple ID.
NOTE 2: If you change your Apple ID you won't be able to upgrade any applications purchased under your old ID from the App Store. You will need to continue to use your old ID for all upgrades and updates, including system updates.
Why do you want to change your Apple ID?
You will encounter the "no bag entry" message if the Mac is unable to connect to Apple's servers. There are a number of possible reasons for that.
Even though the title refers to different messages, please review the following to isolate the cause:
Thanks John, I've managed to resolve the issue with "no bag entry" switching to another WiFi network.
I cant even use my macbook and i daily do my photoshop and iam a photographer and my work is stopped by this no bag entry problem please help me guys and please forward me apple customer care helpline number of india
<Email Edited by Host>
I have never heard of "no bag entry", are you quite sure it says that?
And it is a very bad idea to post your phone number in a public place, I will ask the hosts to remove it for your protection.
I apologise for my mistake of posting my number and email, but iam confused what to do and its very urgent to get rid of this problem so i did, please help me how to solve this problem
As I asked you earlier, what exactly did the message say, maybe take a screenshot and post it here.
its screenshot
did you got screenshot
Try reinstalling using your old Apple ID. Since you haven't downloaded it using your new Apple ID, it isn't in your App Store Purchases for the new ID.
when iam trying to simply power on my macbook its indicating no entry sign, how can i change apple id
No.
on reinstalling mac os sierra my macbook says no bag entry
