Hi. I recently bought an Xperia Play from eBay but I later discovered that it is an R800i model and not compatible with Telstra NextG (850mhz band I beleive) so I am stuck using older GSM networks (no regular 3g out here) meaning I rarely get any signal (at least when I'm at home). Is the hardware between models identical meaning it is possible to flash to an R800a ROM or official Telstra ROM (whatever its called) to fix this? I searched the forums and google but I couldn't find an R800a ROM, is there a reason for this? Can it be done yet? Let me know
The hardware radio is different, i/a roms will flash fine between the two because at this stage radios are not being flashed..
Sorry for the bad news
Sent from my R800i using XDA Premium App
Oh well thanks anyway...I might have to switch to optus or something then...
Reviving this thread instead of starting a new one.
Is there a way to change the radio of a R800i to support Tesltra's NextG? I swapped radios all the time on my Desire and am wondering if the same is possible on the Play...
Look up all the bands for the different play versions, flash the firmware that has it if there is one?
Sent from a Galaxy far, far away
no, you cant, r800i has an 900mhz radio and r800a is 850mhz, you can buy a telstra xperia play at kmart atm for $200 telstra locked prepaid.
Most of the roms i use my r800a are actually r800i roms but they offer better market support, so its best to use them, imo.
Hey Maelstrom, but when you change your rom to a 800i, does your frequency changes to 900mhz?
No, the Radio isn't touched when u change roms, if it was flashed with a 900mhz radio the radio would just not work until you flashed it with the correct 850mhz software.
Consider the R800a and r800i firmware completely interchangeable for the most part, but as I mentioned earlier, market support is better on the r800i roms, so that's why I use it.
For brazilians Xperia ZL, called Xperia ZQ, because uncommon LTE bands, model is C6503.
Xperia ZQ C6503_10.1.A.1.434_Customized BR 1270-5681 R7A.ftf
Model: Xperia ZQ C6503
Version: 10.1.A.1.434
Branding: Customized BR 1270-5681 R7A
MD5SUM:
5333b70fb314c65e86982868d938378a Xperia ZQ C6503_10.1.A.1.434_Customized BR 1270-5681 R7A.rar
b8b8da81332b17d13b3b9085a6cff990 Xperia ZQ C6503_10.1.A.1.434_Customized BR 1270-5681 R7A.ftf
Tested on my Xperia ZQ, with FlashTool 0.9.10.2beta6
FOR LOCKED/RELOCKED BOOTLOADER!
UNTOUCHED FW!!!
One bloatware: "buscapé"
-------------------------------
Anunakin
First of all, thanks a lot.
The odd thing here is that my carrier version (Vivo) has a 10.1.A.1.350 firmware.
Thanks man!!!
Thanks! Here is a Mirror!
http://storagecow.eu/index.php?dir=Xda/Xperia+ZL/Stock+Roms/Xperia+ZQ/
First thanks man.
I'm with unlocked bootloader, but I'll try flash any way.
I did not founded how to relock my bootloader, if something goes wrong I will cry out for your help!! LOL
Thanks.
May I loose BE2 if I flash this over Vivo carrier FW?
Julianocas said:
May I loose BE2 if I flash this over Vivo carrier FW?
Click to expand...
Click to collapse
No. This FTF is untouched retail Firmware, for locked bootloaders.
What's the difference between a generic European ROM (available to download under Development thread) and this one that you are providing?
You mentioned that the frequency is different (uncommon) in Brazil, but shouldn't Band 7 LTE be the same all around the world?
AndroidBR said:
What's the difference between a generic European ROM (available to download under Development thread) and this one that you are providing?
You mentioned that the frequency is different (uncommon) in Brazil, but shouldn't Band 7 LTE be the same all around the world?
Click to expand...
Click to collapse
You meant this one: [FTF] C6503 Customized MEA 1272-3738 10.1.1.A.1.253
It's Arabian region...
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According to the image, brazilians are abble to get C6503, regardless of ZL or ZQ... the important is the number of the model.
The brazilian ZQ is the C6503, wich is sold anywhere else as ZL...
Where the bands match with brazilian market (e.g. Europe and almost the rest of the world), the LTE model will be this the C6503 and HSPDA C6502.
http://en.wikipedia.org/wiki/List_of_LTE_networks
So it's "OK" to flash any C6503 FTF, since it's the same thing...
But I think that the update was just released to C6502 and C6506 phones, Sony says that the C6503 version is out since May 17th, but where?
Julianocas said:
You meant this one: [FTF] C6503 Customized MEA 1272-3738 10.1.1.A.1.253
It's Arabian region...
According to the image, brazilians are able to get C6503, regardless of ZL or ZQ... the important is the number of the model.
The brazilian ZQ is the C6503, which is sold anywhere else as ZL...
Where the bands match with brazilian market (e.g. Europe and almost the rest of the world), the LTE model will be this the C6503 and HSPDA C6502.
http://en.wikipedia.org/wiki/List_of_LTE_networks
So it's "OK" to flash any C6503 FTF, since it's the same thing...
But I think that the update was just released to C6502 and C6506 phones, Sony says that the C6503 version is out since May 17th, but where?
Click to expand...
Click to collapse
I don't really know why you brought up the Arabic ROM... But anyhow, I had tried several CM10.1 ROMs and FreeXperias as well, only to find out that the speakerphone feature was missing. I absolutely need loudspeaker for work, so I had to revert back to stock. I flashed the latest generic European FTF ROM I could find here but I was having a hard time connecting to my 4G/3G/2G networks here in Brazil. Sometimes, when I'd run out of 4G coverage, the phone would completely lose service and would not switch back to 3G or 2G in order to maintain the connection on its own (idle connection), even if I selected automatic search under network settings. After I flashed the FTF file you've provided these connection problems that I just described seems to have disappeared. Another interesting detail that I've noticed is that now when I'm using my cellphone's 4G data, instead of displaying the little 4G logo, it now displays LTE. I drove around town tonight and noticed that the phone was successfully switching between networks in idle as well as during and after I placed phone calls, always returning to 4G whenever available. Thank you so much for sharing this custom built ROM for the brazilian market! I really appreciate it!
AndroidBR said:
I don't really know why you brought up the Arabic ROM... But anyhow, I had tried several CM10.1 ROMs and FreeXperias as well, only to find out that the speakerphone feature was missing. I absolutely need loudspeaker for work, so I had to revert back to stock. I flashed the latest generic European FTF ROM I could find here but I was having a hard time connecting to my 4G/3G/2G networks here in Brazil. Sometimes, when I'd run out of 4G coverage, the phone would completely lose service and would not switch back to 3G or 2G in order to maintain the connection on its own (idle connection), even if I selected automatic search under network settings. After I flashed the FTF file you've provided these connection problems that I just described seems to have disappeared. Another interesting detail that I've noticed is that now when I'm using my cellphone's 4G data, instead of displaying the little 4G logo, it now displays LTE. I drove around town tonight and noticed that the phone was successfully switching between networks in idle as well as during and after I placed phone calls, always returning to 4G whenever available. Thank you so much for sharing this custom built ROM for the brazilian market! I really appreciate it!
Click to expand...
Click to collapse
I'm using the [FTF] Xperia ZQ (C6503) 4.1.2 - 10.1.A.1.434 - Customized BR 1270-5681 R7A Firmware. It's the stock unbranded FTF from Brazil. (the phone came with Vivo branded FTF)
And waiting for the 253... badly...
Julianocas said:
I'm using the [FTF] Xperia ZQ (C6503) 4.1.2 - 10.1.A.1.434 - Customized BR 1270-5681 R7A Firmware. It's the stock unbranded FTF from Brazil. (the phone came with Vivo branded FTF)
And waiting for the 253... badly...
Click to expand...
Click to collapse
253?
I was using that ROM below, but was having a hard time connecting switching and sticking with VIVO 4G 3G and 2G correctly Xperia_ZL_C6503_10.1.A.1.434_Customized_NCB_1270-6779_R5A
Ever since I switched to
Xperia ZQ (C6503) 4.1.2 - 10.1.A.1.434 - Customized BR 1270-5681 R7A these connection problems seems to be fixed.
AndroidBR said:
253?
I was using that ROM below, but was having a hard time connecting switching and sticking with VIVO 4G 3G and 2G correctly Xperia_ZL_C6503_10.1.A.1.434_Customized_NCB_1270-6779_R5A
Ever since I switched to
Xperia ZQ (C6503) 4.1.2 - 10.1.A.1.434 - Customized BR 1270-5681 R7A these connection problems seems to be fixed.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2278682
Lots of enhancements...
AndroidBR said:
What's the difference between a generic European ROM (available to download under Development thread) and this one that you are providing?
You mentioned that the frequency is different (uncommon) in Brazil, but shouldn't Band 7 LTE be the same all around the world?
Click to expand...
Click to collapse
Xperia ZQ:
2500/2700 MHz
Brazil dont have 700MHz for LTE, only in 2016 because that is used for analog TV
Xperia ZL(EUR/USA):
700 MHz
Anunakin said:
Xperia ZQ:
2500 MHz
Brazil dont have 700MHz for LTE, only in 2016 because that is used for analog TV
Xperia ZL(EUR/USA):
700 MHz
Click to expand...
Click to collapse
Yes, yes, that's pretty obvious though... That's why I have purchased the ZL C6503. It has Band 7 2500/2600MHz. It's the very same thing as the ZQ (Brazil).
That's why I asked what were the specific differences between a generic European ROM (thats came with my phone) and this one, made for the Brazilian market.
By the way, I think we're going to be getting Band 4 700MHz a lot sooner than 2016. Somewhere in between fourth quarter of 2013 and first quarter of 2014. So said a Vivo rep that I spoke to last week. Fingers crossed!
Anunakin said:
Xperia ZQ:
2500/2700 MHz
Brazil dont have 700MHz for LTE, only in 2016 because that is used for analog TV
Xperia ZL(EUR/USA):
700 MHz
Click to expand...
Click to collapse
This is a lie.
2600 is the "almost" worldwide band.
700 is almost only for US.
I've posted the list of band...
Julianocas said:
This is a lie.
2600 is the "almost" worldwide band.
700 is almost only for US.
I've posted the list of band...
Click to expand...
Click to collapse
Hey, be nice...! I wouldn't call him a liar, but I'd say that both of you are mistaken...
As you can see on this URL http://www.apple.com/iphone/LTE/ the 700MHz band is mainly used in North America.
On this other URL http://developer.sonymobile.com/2013/01/24/lte-coverage-for-xperia-smartphones/ you'll find that the 2600MHz band should probably not be considered the "almost" worldwide band.
It's not just that the 2600MHz band is available in more countries. I'd say that the fact that our ZL/ZQ C6503's LTE radio has most of the bands (3, 5, 7, 8 and 20) that are available in more countries around the world that makes this a great worldwide device. :thumbup:
AndroidBR said:
Hey, be nice...! I wouldn't call him a liar, but I'd say that both of you are mistaken...
As you can see on this URL http://www.apple.com/iphone/LTE/ the 700MHz band is mainly used in North America.
On this other URL http://developer.sonymobile.com/2013/01/24/lte-coverage-for-xperia-smartphones/ you'll find that the 2600MHz band should probably not be considered the "almost" worldwide band.
Click to expand...
Click to collapse
You can see on this link: http://en.m.wikipedia.org/wiki/List_of_LTE_networks that Apple forgot that Canada...
And u also can see that Europe and rest of the world uses 2600.
The "700" thing came with iPhone 5 owners in BR crying that 2600 sucks and the world's best freaking awesome band is 700. And it's a lie...
The only flaw of this firmware is that it's odexed. Other than that, great FTF. Would love a deodexed version, if any exists.
BTW, also waiting on .253 to be brought to ZQ. Of course we can flash the ZL version, but then it seens we'll lose 4G connectivity even if we flash only ZQ's baseband files (at least the LTE option does not appear in the list of network modes...).
For now the only band in use in Brazil is the 2500MHz
DeathMetalDiamond said:
The only flaw of this firmware is that it's odexed. Other than that, great FTF. Would love a deodexed version, if any exists.
BTW, also waiting on .253 to be brought to ZQ. Of course we can flash the ZL version, but then it seens we'll lose 4G connectivity even if we flash only ZQ's baseband files (at least the LTE option does not appear in the list of network modes...).
Click to expand...
Click to collapse
You can see it on service menu.
Hey guys im thinking of buying a sony Xperia ZL but on amazon there are 2 different model numbers i have phone which are C6502 and C6506. the C6506 looks like its the LTE version which is around $450 and the C6502 which is non LTE is around $360-400. would Roms work for both phones? does the model number really matter?
If ur network provider have 4g or lte buy 6605 if not buy 6602 , firmware ftf files can be flashed , network is hardware no software, actually i have 6602 is 3g red but i have it with official firmwarw 6603 working with no problems
C6506
i have the C6506 because of the 4g,
the C6506 can be 3g or 4g but the C6502 will never have 4g because of hardware limitations
also u could resell it a little bit higher
and yes, roms will work no matter what model u have, because if u buy the C6506 and the rom u like its for C6502, u can flash the C6506 baseband with flashtool and get 4g
Is there an absolute sure way of checking the variant of the Xperia ZL whether it is a C6502 or C6503 or C6506?
I got a refurbished phone (ZL C6503, so with LTE) online through a Hong Kong seller.
It really seems in a mint condition and all tests run fine. For the time being I am using the phone without a sim card so can't check data connectivity.
All conventional ways of checking the model shows that this is indeed a C6503:
- on sticker under the memory card/sim cover
- in setting/about phone
- through service menu (*#*#7378423#*#*)
- Sony support: email confirmation based on IMEI - although it sounds pretty vague and they did not show me any proof, just suggested I take a look at the white papers which actually I already mentioned in my original inquiry....
But, in the same sevice menu (*#*#7378423#*#*), only the following bands are listed:
GSM 850, 900, 1800, 1900
UMTS_BC1, 2, 4, 5, and 8
so, there are NO LTE bands listed at all! According to the white paper documentations, these bands actually fit the C6502 model which does NOT have LTE anyway.
This got me thinking. I heard that tricky Chinese sellers can refurbish phones in a way that they sell the cheaper C6502 as if it was a C6503 or C6506.
From what I read so far, it seems that IMEI can be changed, there are even guides on it. A C6503/6 rom can easily be installed on a C6502 phone, too. And while the latest official version is 10.7.A.0.228 for the C6503, it is only 10.7.A.0.222 for the C6502. And when I updated my phone all the way, it only went up to 10.7.A.0.222. This is another worrying sign, suggesting my C6503 may be only a C6502.
So this leads to my original question: is there an absolutely safe, bullet-proof way of checking authenticity of a phone model? Maybe through some hardware info since they could not mess around with such stuff that easily? Also, I would love to see some links, documentation, etc as proof, as opposed to only "opinions", although any input would be appreciated, of course. I do not want to wrongly accuse the seller, but if they tricked me, I won't stop until they pay for this.
EDIT: My suspicion was correct: it was a c6502 version, with a C6503 rom installed over it. So watch out for this dirty trick.