<s>
The	O
Pangu	B-Operating_System
Team	I-Operating_System
(	O
Pangu	O
jailbreak	B-Application
team	O
)	O
,	O
is	O
a	O
Chinese	O
programming	O
team	O
in	O
the	O
iOS	B-Application
community	O
that	O
developed	O
the	O
Pangu	O
jailbreaking	B-Application
tools	I-Application
.	O
</s>
<s>
These	O
are	O
tools	O
that	O
assist	O
users	O
in	O
bypassing	O
device	O
restrictions	O
and	O
enabling	O
root	B-Application
access	I-Application
to	O
the	O
iOS	B-Application
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
This	O
permits	O
the	O
user	O
to	O
install	O
applications	O
and	O
customizations	O
typically	O
unavailable	O
through	O
the	O
official	O
iOS	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
Pangu	O
or	O
Pangu	O
Jailbreak	B-Application
for	O
iOS	B-Application
7.1	O
-	O
7.1.x	O
is	O
a	O
free	O
iOS	B-Application
jailbreaking	I-Application
tool	O
developed	O
by	O
the	O
Pangu	B-Operating_System
Team	I-Operating_System
that	O
is	O
capable	O
of	O
executing	O
jailbreaks	B-Application
on	O
various	O
iOS	B-Application
7.1	O
devices	O
(	O
iPod	O
touch	O
,	O
iPhone	O
and	O
iPad	O
)	O
by	O
using	O
various	O
exploits	O
.	O
</s>
<s>
The	O
tool	O
was	O
first	O
released	O
on	O
23	O
June	O
2014	O
UTC+	O
08:00	O
to	O
jailbreak	B-Application
iOS	B-Application
7.1	O
on	O
all	O
iOS	B-Application
devices	O
and	O
the	O
new	O
fourth	O
generation	O
Apple	B-Device
TV	I-Device
(	O
for	O
tvOS	O
9.0	O
and	O
9.0.1	O
)	O
.	O
</s>
<s>
The	O
initial	O
release	O
of	O
the	O
tool	O
included	O
support	O
for	O
iOS	B-Application
7.1.2	O
.	O
</s>
<s>
Pangu	O
uses	O
a	O
revoked	O
enterprise	O
certificate	O
to	O
inject	O
the	O
jailbreak	B-Application
,	O
which	O
is	O
removed	O
after	O
the	O
jailbreak	B-Application
is	O
complete	O
.	O
</s>
<s>
In	O
the	O
initial	O
release	O
(	O
v1.0.0	O
)	O
,	O
25PP	O
,	O
a	O
Chinese	O
cracked	O
app	B-Application
store	I-Application
would	O
be	O
installed	O
if	O
the	O
user	O
did	O
not	O
uncheck	O
the	O
check	O
box	O
that	O
was	O
checked	O
by	O
default	O
during	O
installation	O
.	O
</s>
<s>
Originally	O
(	O
in	O
v1.0.0	O
)	O
,	O
Pangu	O
achieved	O
the	O
jailbreaking	B-Application
using	O
an	O
Infoleak	O
vulnerability	O
taken	O
from	O
Stefan	O
Esser	O
's	O
(	O
AKA	O
:	O
i0n1c	O
)	O
paid	O
security	O
training	O
sessions	O
,	O
along	O
with	O
other	O
vulnerabilities	O
that	O
they	O
found	O
themselves	O
.	O
</s>
<s>
Although	O
the	O
team	O
acknowledges	O
Esser	O
's	O
help	O
within	O
the	O
Pangu	O
jailbreak	B-Application
tool	O
,	O
Esser	O
took	O
to	O
Twitter	O
to	O
let	O
everyone	O
know	O
he	O
was	O
"	O
in	O
no	O
way	O
okay	O
"	O
with	O
Pangu	O
using	O
the	O
exploit	O
he	O
discovered	O
.	O
</s>
<s>
The	O
Infoleak	O
bug	O
was	O
used	O
to	O
bypass	O
the	O
KASLR	O
which	O
will	O
not	O
make	O
an	O
untethered	O
jailbreak	B-Application
alone	O
.	O
</s>
<s>
Pangu8	O
or	O
Pangu	O
Jailbreak	B-Application
for	O
iOS	O
8.0	O
-	O
8.1	O
is	O
a	O
free	O
iOS	B-Operating_System
8	I-Operating_System
jailbreak	B-Application
tool	O
from	O
the	O
Pangu	B-Operating_System
Team	I-Operating_System
.	O
</s>
<s>
The	O
tool	O
is	O
compatible	O
with	O
all	O
devices	O
capable	O
of	O
running	O
iOS	B-Operating_System
8	I-Operating_System
(	O
iPhone	O
6	O
,	O
iPhone	O
6	O
Plus	O
,	O
iPad	O
mini	O
3	O
,	O
and	O
iPad	O
Air	O
2	O
)	O
,	O
and	O
is	O
currently	O
available	O
in	O
both	O
Chinese	O
and	O
English	O
.	O
</s>
<s>
Cydia	B-Device
was	O
not	O
included	O
in	O
the	O
initial	O
release	O
package	O
,	O
but	O
was	O
added	O
in	O
v1.1.0	O
and	O
is	O
available	O
from	O
the	O
website	O
.	O
</s>
<s>
Since	O
Cydia	B-Device
was	O
incompatible	O
in	O
the	O
initial	O
release	O
,	O
Pangu8	O
included	O
a	O
Pangu	O
app	O
that	O
allows	O
users	O
to	O
install	O
Cydia	B-Device
,	O
alongside	O
various	O
Pangu	O
bug	O
fixes	O
and	O
recommended	O
software	O
.	O
</s>
<s>
The	O
tool	O
works	O
as	O
a	O
tweaking	O
utility	O
and	O
also	O
recommends	O
tools	O
such	O
as	O
OpenSSH	B-Language
.	O
</s>
<s>
After	O
Cydia	B-Device
is	O
installed	O
,	O
the	O
Pangu	O
app	O
can	O
be	O
removed	O
from	O
the	O
device	O
by	O
removing	O
the	O
"	O
Pangu	O
loader	O
for	O
iOS	B-Application
"	O
from	O
Cydia	B-Device
and	O
respringing	O
the	O
device	O
.	O
</s>
<s>
Uninstalling	O
the	O
Pangu	O
app	O
is	O
not	O
the	O
same	O
as	O
removing	O
the	O
Pangu	O
jailbreak	B-Application
.	O
</s>
<s>
If	O
iOS	B-Application
users	O
remove	O
Pangu	O
jailbreak	B-Application
then	O
they	O
have	O
to	O
restore	O
their	O
device	O
to	O
the	O
latest	O
iOS	B-Application
version	O
.	O
</s>
<s>
Moreover	O
,	O
it	O
's	O
difficult	O
to	O
downgrade	O
an	O
iOS	B-Application
device	O
back	O
to	O
the	O
previous	O
iOS	B-Application
version	O
because	O
Apple	O
stops	O
signing	O
the	O
old	O
iOS	B-Application
versions	O
after	O
the	O
release	O
of	O
a	O
newer	O
iOS	B-Application
firmware	O
.	O
</s>
<s>
The	O
initial	O
releases	O
also	O
enabled	O
for	O
Cydia	B-Device
to	O
be	O
installed	O
through	O
a	O
Debian	O
package	O
file	O
instead	O
of	O
within	O
the	O
Pangu	O
app	O
as	O
an	O
alternative	O
.	O
</s>
<s>
Pangu9	O
or	O
Pangu	O
Jailbreak	B-Application
for	O
iOS	B-Operating_System
9.0	I-Operating_System
-	O
9.1	O
is	O
the	O
latest	O
free	O
iOS	B-Operating_System
9	I-Operating_System
jailbreak	B-Application
tool	O
from	O
the	O
Pangu	B-Operating_System
Team	I-Operating_System
.	O
</s>
<s>
It	O
was	O
first	O
released	O
on	O
October	O
14	O
,	O
2015	O
UTC+	O
08:00	O
.	O
and	O
only	O
included	O
a	O
jailbreak	B-Application
for	O
iOS	B-Operating_System
9.0	I-Operating_System
-	O
9.0.2	O
.	O
</s>
<s>
On	O
March	O
11	O
,	O
2016	O
,	O
Pangu	O
released	O
Pangu9	O
v1.3.0	O
that	O
included	O
a	O
jailbreak	B-Application
for	O
iOS	B-Operating_System
9.1	I-Operating_System
.	O
</s>
<s>
The	O
tool	O
is	O
capable	O
of	O
jailbreaking	B-Application
all	O
devices	O
running	O
iOS	B-Operating_System
9.0	I-Operating_System
and	O
all	O
64-bit	B-Device
devices	O
running	O
iOS	B-Operating_System
9.1	I-Operating_System
.	O
</s>
<s>
There	O
are	O
both	O
Windows	O
and	O
OS	B-Operating_System
X	I-Operating_System
versions	O
available	O
.	O
</s>
<s>
Cydia	B-Device
was	O
bundled	O
with	O
Pangu9	O
in	O
its	O
first	O
release	O
,	O
removing	O
the	O
need	O
for	O
a	O
Pangu	O
app	O
found	O
in	O
previous	O
Pangu	O
jailbreaks	B-Application
.	O
</s>
<s>
Released	O
on	O
July	O
24	O
,	O
2016	O
,	O
PP25	O
also	O
known	O
as	O
Pangu9	O
or	O
the	O
new	O
Pangu9	O
is	O
a	O
jailbreak	B-Application
for	O
iOS	B-Operating_System
9.2	I-Operating_System
-	O
9.3.3	O
that	O
is	O
only	O
supported	O
for	O
64-bit	B-Device
devices	O
and	O
is	O
not	O
supported	O
on	O
the	O
iPod	O
6th	O
gen	O
and	O
iPad	O
Pro	O
(	O
on	O
the	O
1st	O
release	O
)	O
.	O
</s>
<s>
The	O
Pangu	O
jailbreak	B-Application
is	O
bundled	O
with	O
PP	O
Assistant	O
that	O
has	O
the	O
option	O
to	O
install	O
the	O
PP25	O
app	O
on	O
the	O
device	O
.	O
</s>
<s>
During	O
the	O
jailbreak	B-Application
process	O
it	O
will	O
ask	O
for	O
an	O
Apple	B-General_Concept
ID	I-General_Concept
used	O
to	O
install	O
the	O
unofficial	O
app	O
to	O
jailbreak	B-Application
.	O
</s>
<s>
Apple	O
corrected	O
the	O
"	O
IOMobileFrameBuffer	O
"	O
bug	O
in	O
iOS	B-Operating_System
9.3.4	I-Operating_System
,	O
released	O
on	O
August	O
4	O
,	O
2016	O
.	O
</s>
<s>
Like	O
all	O
iOS	O
9.x	O
releases	O
,	O
iOS	B-Operating_System
9.3.4	I-Operating_System
is	O
designed	O
for	O
iPhone	O
4S	O
and	O
later	O
,	O
iPad	O
2	O
and	O
later	O
,	O
iPad	O
mini	O
and	O
later	O
,	O
iPad	O
Pro	O
range	O
,	O
and	O
the	O
5th	O
generation	O
iPod	O
touch	O
and	O
later	O
.	O
</s>
<s>
Outsiders	O
recommend	O
that	O
you	O
upgrade	O
from	O
iOS	O
9.3.3	O
to	O
iOS	B-Operating_System
9.3.4	I-Operating_System
only	O
if	O
you	O
do	O
not	O
jailbreak	B-Application
.	O
</s>
<s>
The	O
Pangu9	O
(	O
iOS	B-Operating_System
9	I-Operating_System
-	O
9.1	O
)	O
worked	O
by	O
allowing	O
access	O
to	O
the	O
photos	O
app	O
to	O
be	O
able	O
to	O
install	O
the	O
unsigned	O
application	O
Cydia	B-Device
.	O
</s>
<s>
Pangu9	O
(	O
iOS	B-Operating_System
9.2	I-Operating_System
-	O
9.3.3	O
)	O
used	O
a	O
similar	O
exploit	O
.	O
</s>
<s>
Allowing	O
notifications	B-Application
enabled	O
the	O
installation	O
of	O
Cydia	B-Device
.	O
</s>
<s>
It	O
used	O
an	O
app	O
bundled	O
with	O
PP25	O
that	O
allowed	O
for	O
a	O
jailbreak	B-Application
without	O
use	O
of	O
a	O
computer	O
.	O
</s>
