Di compatible to break this version..
Only if u downgrade to 12.4
.. just few days ago ban na ni apple ang pag downgrade ng ios hahaha
https://www.google.com.ph/amp/s/www.macrumors.com/2019/09/11/apple-stops-signing-ios-12-4/amp/
Saklap dahil ako din 12.4.1 na
kung friend mu naman pala .. ed may contact ka sa kanya.. ed pabayaran mu nalang...
theres no way to give it back to you..
but u can ask your friend na bayaran nya nalang na iload mu sa kanya...