<s>
The	O
Sony	B-Application
Ericsson	I-Application
Xperia	I-Application
X10	I-Application
is	O
a	O
2010	O
high	O
end	O
smartphone	B-Application
in	O
the	O
Xperia	B-Device
series	O
designed	O
by	O
Sony	O
Ericsson	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
Sony	O
Ericsson	O
smartphone	B-Application
to	O
run	O
the	O
Android	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
The	O
phone	O
was	O
shipped	O
with	O
Android	B-Application
1.6	I-Application
(	O
Donut	B-Application
)	O
,	O
but	O
an	O
upgrade	O
to	O
2.1	O
(	O
Eclair	B-Application
)	O
was	O
made	O
available	O
starting	O
31	O
October	O
2010	O
,	O
with	O
a	O
gradual	O
international	O
rollout	O
.	O
</s>
<s>
Originally	O
,	O
Sony	O
Ericsson	O
stated	O
that	O
the	O
X10	O
would	O
not	O
receive	O
an	O
upgrade	O
to	O
Android	B-Application
2.2	O
(	O
Froyo	O
)	O
or	O
beyond	O
,	O
but	O
the	O
phone	O
was	O
later	O
upgraded	O
to	O
2.3.3	B-Application
(	O
Gingerbread	B-Application
)	O
with	O
the	O
updates	O
starting	O
on	O
29	O
July	O
2011	O
.	O
</s>
<s>
The	O
phone	O
features	O
an	O
8.1MP	O
camera	O
and	O
a	O
1GHz	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
CPU	O
.	O
</s>
<s>
Its	O
screen	O
has	O
a	O
widescreen	O
resolution	O
,	O
480	O
x	O
854	O
pixels	O
,	O
and	O
features	O
a	O
virtual	B-Device
keyboard	I-Device
rather	O
than	O
a	O
physical	O
one	O
.	O
</s>
<s>
The	O
Xperia	B-Application
X10	I-Application
was	O
first	O
revealed	O
on	O
3	O
November	O
2009	O
.	O
</s>
<s>
It	O
was	O
first	O
released	O
in	O
Japan	O
on	O
1	O
April	O
2010	O
,	O
and	O
has	O
since	O
become	O
the	O
quickest-selling	O
smartphone	B-Application
for	O
NTT	O
DoCoMo	O
.	O
</s>
<s>
There	O
were	O
negative	O
comments	O
about	O
the	O
lack	O
of	O
support	O
for	O
Android	B-Application
2.1	I-Application
which	O
were	O
quelled	O
when	O
it	O
was	O
released	O
later	O
that	O
year	O
.	O
</s>
<s>
The	O
display	O
is	O
a	O
wide	O
TFT	B-Device
Capacitive	O
touchscreen	B-Device
,	O
with	O
a	O
16:9	O
aspect	O
ratio	O
and	O
FWVGA	O
resolution	O
of	O
480	O
x	O
854	O
pixels	O
,	O
along	O
with	O
a	O
multi-touch	B-Application
enabled	O
screen	O
,	O
the	O
first	O
from	O
Sony	O
.	O
</s>
<s>
The	O
8.1-megapixel	O
camera	O
features	O
16x	O
digital	B-Algorithm
zoom	I-Algorithm
,	O
image	O
stabilization	O
,	O
auto-focus	O
,	O
geo-tagging	O
,	O
smile	O
detection	O
,	O
and	O
face	O
detection	O
.	O
</s>
<s>
Its	O
CPU	O
is	O
1GHz	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
QSD8250	O
with	O
its	O
GPU	O
is	O
Adreno	O
200	O
(	O
AMD	O
Z430	O
)	O
.	O
</s>
<s>
The	O
hardware	O
is	O
limited	O
in	O
its	O
multi-touch	B-Application
functionality	O
.	O
</s>
<s>
It	O
can	O
only	O
track	O
multiple	B-Application
touches	I-Application
where	O
their	O
X	O
and	O
Y	O
coordinates	O
are	O
different	O
.	O
</s>
<s>
The	O
Xperia	B-Application
X10	I-Application
uses	O
the	O
850/900/1800/1900	O
frequency	O
bands	O
for	O
GSM	O
.	O
</s>
<s>
Both	O
versions	O
use	O
850/900/1800/1900	O
frequency	O
bands	O
for	O
GSM	O
while	O
they	O
differ	O
regarding	O
the	O
UMTS	O
frequency	O
bands	O
;	O
the	O
X10a	O
uses	O
800/850/1900/2100	O
bands	O
,	O
and	O
the	O
X10i	B-Application
uses	O
900/1700/2100	O
.	O
</s>
<s>
The	O
X10i	B-Application
is	O
used	O
by	O
T-Mobile	O
in	O
the	O
USA	O
;	O
Wind	O
Mobile	O
and	O
Mobilicity	O
in	O
Canada	O
;	O
Optus	O
and	O
VHA	O
(	O
under	O
both	O
the	O
Vodafone	O
and	O
3	O
brands	O
)	O
in	O
Australia	O
;	O
Singtel	O
,	O
Starhub	O
and	O
M1	O
in	O
Singapore	O
;	O
and	O
through	O
the	O
rest	O
of	O
Asia	O
,	O
Europe	O
,	O
and	O
Oceania	O
.	O
</s>
<s>
With	O
the	O
Android	B-Application
2.3	I-Application
update	O
,	O
the	O
phone	O
can	O
also	O
create	O
a	O
Wi-Fi	O
hotspot	O
.	O
</s>
<s>
Sony	O
Ericsson	O
has	O
its	O
own	O
Android	B-Application
overlay	O
called	O
UX	O
,	O
short	O
for	O
User	O
eXperience	O
.	O
</s>
<s>
Timescape	O
is	O
a	O
program	O
that	O
brings	O
together	O
Facebook	B-Application
,	O
Twitter	B-Application
,	O
SMS	B-Device
,	O
and	O
email	O
into	O
a	O
column	O
on	O
the	O
home	O
screen	O
.	O
</s>
<s>
It	O
can	O
also	O
connect	O
to	O
Facebook	B-Application
and	O
Picasa	O
accounts	O
and	O
to	O
the	O
phone	O
's	O
contacts	O
list	O
.	O
</s>
<s>
This	O
makes	O
it	O
possible	O
to	O
attach	O
photos	O
users	O
have	O
taken	O
with	O
the	O
camera	O
to	O
their	O
contacts	O
or	O
send	O
them	O
directly	O
to	O
their	O
Facebook	B-Application
account	O
.	O
</s>
<s>
The	O
Xperia	B-Application
X10	I-Application
was	O
released	O
with	O
Android	B-Application
1.6	I-Application
,	O
with	O
an	O
upgrade	O
to	O
Android	B-Application
2.1	I-Application
released	O
on	O
31	O
October	O
2010	O
.	O
</s>
<s>
On	O
20	O
January	O
21	O
,	O
an	O
update	O
was	O
released	O
which	O
enabled	O
multi-touch	B-Application
.	O
</s>
<s>
On	O
1	O
February	O
2011	O
,	O
Sony	O
Ericsson	O
announced	O
a	O
future	O
update	O
for	O
Xperia	B-Application
X10	I-Application
that	O
would	O
bring	O
optimizations	O
and	O
bug	O
fixes	O
along	O
with	O
language	O
additions	O
and	O
the	O
pinch-to-zoom	B-Application
feature	O
.	O
</s>
<s>
On	O
29	O
July	O
2011	O
,	O
the	O
Android	B-Application
2.3.3	I-Application
update	O
was	O
released	O
.	O
</s>
<s>
As	O
of	O
1	O
April	O
2011	O
,	O
the	O
bootloader	O
has	O
been	O
bypassed	O
via	O
kexec	B-Application
which	O
enables	O
the	O
loading	O
of	O
custom	O
kernels	O
.	O
</s>
<s>
All	O
X10	O
devices	O
running	O
the	O
Gingerbread	B-Application
firmware	O
(	O
2.3.x	O
)	O
are	O
vulnerable	O
to	O
the	O
zergRush	O
rooting	O
method	O
.	O
</s>
<s>
Several	O
users	O
from	O
sonyericsson	O
,	O
and	O
4pda	O
forums	O
reported	O
a	O
self-rebooting	O
bug	O
on	O
their	O
X10i	B-Application
's	O
.	O
</s>
<s>
Since	O
the	O
Android	B-Application
2.3	I-Application
(	O
Gingerbread	B-Application
)	O
update	O
the	O
phone	O
has	O
suffered	O
a	O
stuttering	O
in	O
play	O
or	O
streaming	O
of	O
music	O
regardless	O
of	O
file	O
association	O
.	O
</s>
<s>
Sony	O
Ericsson	O
announced	O
two	O
mini	O
versions	O
of	O
the	O
Xperia	B-Application
X10	I-Application
at	O
the	O
Mobile	O
World	O
Congress	O
2010	O
.	O
</s>
<s>
The	O
X10	B-Application
Mini	I-Application
and	O
the	O
X10	B-Application
Mini	I-Application
Pro	I-Application
were	O
released	O
in	O
June	O
2010	O
.	O
</s>
