[Q] Xperia NX SO-02D vs Xperia S LT26i - Sony Xperia P, U, Sola, Go

Could someone help me determine the main differences between the "Xperia NX SO-02D" (DoCoMo) and "Xperia S LT26i"?
Here are the differences that I know so far:
Xperia NX SO-02D
- labelled Sony Ericsson
- SIM locked to DoCoMo
- bootloader locked
- DoCoMo ROM with DoCoMo apps pre-installed (useful for Japanese)
- IMEI Software Version: 02
- UMTS Working band/s: BC1, BC5, BC6, BC9, BC19 ---> 2100, 850, 800, 1700 (docomo), 800 (docomo); missing 1900 and 900
- no NFC support, chip is present but antenna was removed
- bundled with some extra accessories
Xperia S LT26i
- labelled Sony
- SIM unlocked
- bootloader unlocked
- World ROM
- IMEI Software Version: 03
- UMTS Working band/s: BC1, BC2, BC5, BC8 ---> 2100, 1900, 850, 900
- NFC support
Conclusion (subject to revision): Xperia NX SO-02D is a locked (sim/bootloader) variant of Xperia S LT26i built for DoCoMo and does not have the same radio.
Thanks in advance,
Misato

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Misato-chan said:
Could someone help me determine the main differences between the "Xperia NX SO-02D" (DoCoMo) and "Xperia S"?
Here is what I suspect are the differences:
Xperia NX SO-02D
- labelled as Sony Ericsson
- locked to DoCoMo
- nfc disabled
- DoCoMo variant of the Sony android ROM with docomo apps pre-installed (useful for Japanese)
- bundled with some extra accessories
Xperia S
- labelled Sony
- unlocked (international)
- nfc enabled
- vanilla Sony android ROM
Assuming the above is correct and I end up purchasing the NX SO-02D, will I be able to
1) unlock it
2a) clean up the ROM (remove all DoCoMo traces)
or
2b) flash the Xperia S ROM
3) enable NFC?
Thanks in advance,
Misato
Click to expand...
Click to collapse
just flash the World Generic Rom
1) no more docomo logo or programs
2)nfc not sure read here if you know jap http://bbs.kakaku.com/bbs/K0000329319/SortID=14250647/
unlock via docomo or use the known websites like cellunlocker.net
also here i see a green correct sign next to NFC
http://en.gsmchoice.com/en/catalogue/sony/xperianxso02d/Sony-Xperia-NX-SO-02D.html

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Misato-chan said:
Could someone help me determine the main differences between the "Xperia NX SO-02D" (DoCoMo) and "Xperia S"?
Here is what I suspect are the differences:
Xperia NX SO-02D
- labelled Sony Ericsson
- locked to DoCoMo
- nfc disabled
- DoCoMo variant of the Sony android ROM with DoCoMo apps pre-installed (useful for Japanese)
- bundled with some extra accessories
Xperia S
- labelled Sony
- unlocked (international)
- nfc enabled
- vanilla Sony android ROM
Assuming the above is correct and I end up purchasing the NX SO-02D, will I be able to
1) unlock it
2a) clean up the ROM (remove all DoCoMo traces)
or
2b) flash the Xperia S ROM
3) enable NFC?
Thanks in advance,
Misato
Click to expand...
Click to collapse
I have the Docomo device. It is labeled Sony Ericsson. It was unlocked by Docomo in Japan, $39 USD. Can't comment on NFC but no tags included in packaging. A micro SD card reader was included as well as a 2GB card. Many Docomo apps can be uninstalled but not all. Bootloader unlock allowed = no. My feeling is you will be able to flash Xperia S ROM but I will run Japanese firmware for awhile.

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Do both the Xperia NX SO-02D and Xperia S come with bootloader locked?
If I keep the bootloader locked, will this prevent me from flashing the "Sony World firmware" on the Japanese variant?

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Misato-chan said:
Do both the Xperia NX SO-02D and Xperia S come with bootloader locked?
If I keep the bootloader locked, will this prevent me from flashing the "Sony World firmware" on the Japanese variant?
Click to expand...
Click to collapse
like the Xperia arc
you can flash without unlocking bootloader
check with developmental sec it Flashtool works on the xperia S

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Looks like bootloader is unlocked for Xperia S.
It also looks like the UMTS bands are different on both phones.
NX SO-02D is missing:
- 1900 band, which could create issues in North America
- 900 band, which could create issues elsewhere
hxxp://pocketgames.jp/blog/wp-content/uploads/2012/03/xperianx_xperiass_01.jpg
Will flashing World ROM will also change bands?

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Misato-chan said:
Looks like bootloader is unlocked for Xperia S.
It also looks like the UMTS bands are different on both phones.
NX SO-02D is missing:
- 1900 band, which could create issues in North America
- 900 band, which could create issues elsewhere
hxxp://pocketgames.jp/blog/wp-content/uploads/2012/03/xperianx_xperiass_01.jpg
Will flashing World ROM will also change bands?
Click to expand...
Click to collapse
all xperia s and NX have the same bands
no flashing the Rom wont change bands
Bands= Hardware
Rom= Software
for example if you put windows on an apple device, it will not change the video card power
hope that clears it up
augie7107 has it in the u.s and has not reported any problems
japanese people are using and are not reporting any problems
you order = and you will be happy

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alsaqr said:
all xperia s and NX have the same bands
Click to expand...
Click to collapse
I don't think your statement is accurate. The devices have different bands. It should still work in most countries given that telcos typically use multiple UMTS bands.

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alsaqr said:
all xperia s and NX have the same bands
no flashing the Rom wont change bands
Bands= Hardware
Rom= Software
for example if you put windows on an apple device, it will not change the video card power
hope that clears it up
augie7107 has it in the u.s and has not reported any problems
japanese people are using and are not reporting any problems
you order = and you will be happy
Click to expand...
Click to collapse
Misato-chan said:
Looks like bootloader is unlocked for Xperia S.
It also looks like the UMTS bands are different on both phones.
NX SO-02D is missing:
- 1900 band, which could create issues in North America
- 900 band, which could create issues elsewhere
hxxp://pocketgames.jp/blog/wp-content/uploads/2012/03/xperianx_xperiass_01.jpg
Will flashing World ROM will also change bands?
Click to expand...
Click to collapse
Misato-chan said:
I don't think your statement is accurate. The devices have different bands. It should still work in most countries given that telcos typically use multiple UMTS bands.
Click to expand...
Click to collapse
Misato-chan is right, and in fact NX SO-02D would work with T-Mobile 3G it seems, that is good news for T-Mobile people interested in the Xperia S.
http://pdadb.net/index.php?m=specs&id=3324&c=sony_xperia_nx_so-02d_se_nozomi

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I'm on AT&T but using 850. I'm not sure if I require 1900 in New England.
Speed test shows:
Ping 142ms
Download 2483 kbps
Upload 1113 kbps
Packaging for SO-02D states:
GSM/GPRS/EDGE 850/900/1800/1900
UMTS/HSPA Bands 1/5/6/9/19

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Alien987 said:
Misato-chan is right, and in fact NX SO-02D would work with T-Mobile 3G it seems, that is good news for T-Mobile people interested in the Xperia S.
http://pdadb.net/index.php?m=specs&id=3324&c=sony_xperia_nx_so-02d_se_nozomi
Click to expand...
Click to collapse
I don't think it would work on T-Mobile since it uses AWS. AWS is BC4 and is not supported by the SO-02D. The 1700 band supported is BC9.

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Misato-chan said:
I don't think it would work on T-Mobile since it uses AWS. AWS is BC4 and is not supported by the SO-02D. The 1700 band supported is BC9.
Click to expand...
Click to collapse
The pdadb link I posted states B6/B4/B1.
Although augie7107 above you states that his SO-02D has different bands, so it seems there are more than one hardware radio configurations for this model or a big confusion...

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the only way this can be confirmed is if somone tries a tmobile sim card on it

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Alien987 said:
The pdadb link I posted states B6/B4/B1.
Although augie7107 above you states that his SO-02D has different bands, so it seems there are more than one hardware radio configurations for this model or a big confusion...
Click to expand...
Click to collapse
Look at my screenshot link I posted earlier. augie6107's information confirms that the screenshot is correct. It seems like radio differences is the norm for DoCoMo phones, due to the frequencies used in Japan.
The real question that is left unanswered for people who import this phone is what does it change? In North America where 850/1900/2100 is used by telcos, does it change anything (slower speed, reduced reception, etc...) if the 1900 band is missing?

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That is correct. Will the missing 1900 frequency limit reception is the question. I've only had the device a few days and call reception has been fine.
Another difference is the ability to choose Xperia or Docomo home, contacts and music player. Any combination may be selected.
This link provides some good information concerning the 850 & 1900 bands on AT&T:
http://www.att.com/gen/press-room?pid=14003
Sent from my SO-02D using xda premium

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augie7107 said:
I have the Docomo device. It is labeled Sony Ericsson. It was unlocked by Docomo in Japan, $39 USD. Can't comment on NFC but no tags included in packaging. A micro SD card reader was included as well as a 2GB card. Many Docomo apps can be uninstalled but not all. Bootloader unlock allowed = no. My feeling is you will be able to flash Xperia S ROM but I will run Japanese firmware for awhile.
Click to expand...
Click to collapse
Does this mean The jap version has a sd card slot ? Then the hardware may be completely different .

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[email protected]_me said:
Does this mean The jap version has a sd card slot ?
Click to expand...
Click to collapse
Nah, it comes with external adapter for Micro-SD I believe.

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Nimche said:
Nah, it comes with external adapter for Micro-SD I believe.
Click to expand...
Click to collapse
Crushes my dream of xs with a sd card slot but makes me wonder what is the sd card for
Sent from my X10i using XDA

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Check the specifications of the snapdragon chipset!
MSM8660 supports almost all world WCDMA bands!
They may be using different (software) basebands to restrict frequency... So one may flash another baseband to get access.. Read about the HTC devices recently and the Galaxy Note...

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Can we unlock bootloaders on these?
Sent from my X10i using XDA