no it will not fit the deminsions on the phones are different
No. The dimensions to a Galaxy S4 is considerably bigger than the Galaxy S2.
no.
No. it might damage your phone.
S2
Galaxy S2.
Galaxy S3
The Samsung galaxy s2 unlocked
restart your phone
Galaxy s2
Mobile phone
The Samsung Galaxy S4's screen pixel density is 441 ppi.
Galaxy S2 HD LTE is better
S2.