<s>
The	O
LG	B-Application
Optimus	I-Application
,	O
also	O
known	O
as	O
the	O
LG	B-Application
Optimus	I-Application
GT540	I-Application
,	O
LG	B-Application
GT540	I-Application
Swift	O
and	O
the	O
LG	O
Loop	O
GT540	O
,	O
is	O
a	O
mid-level	O
Android	B-Application
smartphone	B-Application
designed	O
and	O
manufactured	O
by	O
LG	O
Electronics	O
.	O
</s>
<s>
Released	O
running	O
Android	B-Application
1.6	O
Donut	O
,	O
the	O
device	O
can	O
be	O
officially	O
upgraded	O
to	O
Android	B-Application
2.1	O
Eclair	O
via	O
an	O
LG	O
software	O
release	O
.	O
</s>
<s>
The	O
Optimus	O
is	O
designed	O
for	O
first-time	O
smartphone	B-Application
users	O
and	O
is	O
available	O
in	O
four	O
colors	O
:	O
black	O
,	O
white	O
,	O
pink	O
and	O
silver	O
.	O
</s>
<s>
The	O
Optimus	O
,	O
also	O
known	O
as	O
the	O
GT540	O
Swift	O
and	O
the	O
Loop	O
GT540	O
,	O
is	O
a	O
mid-level	O
Android	B-Application
smartphone	B-Application
designed	O
and	O
manufactured	O
by	O
LG	O
Electronics	O
.	O
</s>
<s>
The	O
GT540	O
Optimus	O
ships	O
with	O
Android	B-Application
1.6	O
Donut	O
,	O
but	O
can	O
be	O
officially	O
upgraded	O
to	O
Android	B-Application
2.1	O
Eclair	O
via	O
an	O
LG	O
software	O
release	O
.	O
</s>
<s>
Android	B-Application
enthusiasts	O
have	O
created	O
unofficial	O
updates	O
that	O
allow	O
the	O
GT540	O
to	O
run	O
Android	B-Application
2.2	O
Froyo	O
,	O
Android	B-Application
2.3	I-Application
Gingerbread	B-Application
and	O
Android	B-Application
4.0	O
Ice	O
Cream	O
Sandwich	O
.	O
</s>
<s>
LG	O
designed	O
the	O
Optimus	O
for	O
first	O
time	O
smartphone	B-Application
users	O
,	O
marketing	O
the	O
device	O
under	O
the	O
slogan	O
"	O
Optimal	O
performance	O
for	O
first	O
time	O
smartphone	B-Application
users.	O
"	O
</s>
<s>
The	O
LG	B-Application
Optimus	I-Application
received	O
a	O
generally	O
positive	O
reception	O
.	O
</s>
<s>
And	O
,	O
taking	O
that	O
into	O
consideration	O
,	O
we	O
have	O
to	O
say	O
that	O
the	O
LG	B-Application
Optimus	I-Application
is	O
a	O
nicely	O
rounded	O
phone.	O
"	O
</s>
<s>
While	O
praising	O
the	O
phone	O
's	O
"	O
surprisingly	O
pleasant	O
media	O
skills	O
"	O
,	O
the	O
reviewer	O
also	O
criticized	O
the	O
device	O
's	O
resistive	B-Device
touch	I-Device
screen	I-Device
and	O
preferred	O
the	O
older	O
LG	B-Application
GW620	I-Application
in	O
some	O
respects	O
.	O
</s>
<s>
LG	O
previously	O
claimed	O
that	O
Optimus	O
is	O
not	O
capable	O
of	O
running	O
Android	B-Application
2.2	O
(	O
Froyo	O
)	O
due	O
to	O
its	O
low	O
hardware	O
specifications	O
,	O
but	O
developers	O
Quarx	O
and	O
Ankuch	O
successfully	O
ported	O
CyanogenMod	B-Application
6	O
to	O
GT540	O
.	O
</s>
<s>
Another	O
developer	O
,	O
Mur4ik	O
,	O
successfully	O
ported	O
CyanogenMod	B-Application
7	O
based	O
on	O
Gingerbread	B-Application
.	O
</s>
<s>
A	O
few	O
months	O
later	O
,	O
a	O
developer	O
named	O
Mike	O
Gapinski	O
managed	O
to	O
get	O
Android	B-Application
4.0	O
Ice	O
Cream	O
Sandwich	O
to	O
GT540	O
.	O
</s>
<s>
Only	O
1	O
month	O
after	O
the	O
Jelly	O
Bean	O
Source	O
was	O
released	O
even	O
Android	B-Application
4.1	O
was	O
ported	O
to	O
it	O
.	O
</s>
<s>
The	O
Optimus	O
does	O
not	O
support	O
all	O
Bluetooth	B-Protocol
devices	O
.	O
</s>
<s>
One	O
such	O
issue	O
is	O
connecting	O
to	O
a	O
Bluetooth	B-Protocol
Keyboard	O
,	O
the	O
device	O
will	O
pair	O
over	O
Bluetooth	B-Protocol
,	O
but	O
is	O
not	O
able	O
to	O
establish	O
an	O
ongoing	O
connection	O
.	O
</s>
