<s>
The	O
Samsung	B-Application
Galaxy	I-Application
J1	I-Application
is	O
an	O
Android	B-Application
smartphone	B-Application
developed	O
by	O
Samsung	O
Electronics	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
January	O
2015	O
and	O
is	O
the	O
first	O
phone	O
of	O
the	O
Galaxy	B-Application
J	I-Application
series	I-Application
.	O
</s>
<s>
The	O
Galaxy	O
J1	O
was	O
announced	O
in	O
January	O
2015	O
as	O
the	O
first	O
model	O
of	O
the	O
J	B-Application
series	I-Application
.	O
</s>
<s>
The	O
3G	B-Architecture
model	O
was	O
released	O
in	O
February	O
2015	O
,	O
the	O
4G	B-Architecture
model	O
one	O
month	O
after	O
.	O
</s>
<s>
In	O
the	O
following	O
months	O
Samsung	O
launched	O
more	O
smartphones	B-Application
bearing	O
the	O
J1	O
name	O
such	O
as	O
the	O
J1	B-Application
Ace/Ace	I-Application
Neo	I-Application
,	O
J1	B-Application
Nxt/mini	I-Application
and	O
J1	B-Application
mini	I-Application
prime	I-Application
.	O
</s>
<s>
The	O
Samsung	B-Application
Galaxy	I-Application
J1	I-Application
is	O
available	O
in	O
a	O
3G	B-Architecture
and	O
a	O
4G	B-Architecture
version	O
.	O
</s>
<s>
Both	O
models	O
have	O
an	O
ARM	B-Application
Cortex-A7	I-Application
CPU	B-General_Concept
with	O
either	O
two	O
(	O
3G	B-Architecture
)	O
or	O
four	O
cores	O
(	O
4G	B-Architecture
)	O
with	O
512	O
MB	O
(	O
3G	B-Architecture
)	O
or	O
768	O
MB	O
(	O
4G	B-Architecture
)	O
of	O
RAM	O
respectively	O
,	O
and	O
4	O
GB	O
of	O
internal	O
storage	O
.	O
</s>
<s>
The	O
J1	O
is	O
shipped	O
with	O
Android	B-Application
4.4.4	I-Application
"	O
KitKat	B-Application
"	O
and	O
Samsung	O
's	O
TouchWiz	B-Application
user	I-Application
interface	I-Application
.	O
</s>
<s>
The	O
original	O
model	O
never	O
got	O
updated	O
to	O
Android	B-Application
Lollipop	I-Application
,	O
but	O
got	O
an	O
unofficial	O
Android	B-Application
7.1.2	I-Application
"	O
Nougat	B-Application
"	O
custom	O
firmware	O
port	O
on	O
.	O
</s>
<s>
An	O
of	O
TWRP	B-Application
exists	O
for	O
this	O
device	O
.	O
</s>
<s>
Verizon	B-Application
released	O
a	O
special	O
branded	O
J1	O
4G	B-Architecture
.	O
</s>
<s>
It	O
's	O
shipped	O
with	O
Android	B-Application
5.0.2	I-Application
"	O
Lollipop	B-Application
"	O
which	O
is	O
upgradable	O
to	O
5.1.1	O
as	O
of	O
September	O
2015	O
.	O
</s>
