[Q] Defy with 850/1900 3g bands - Defy Q&A, Help & Troubleshooting

Hi, terribly sorry if this is a repost but I've searched all over general and don't see an answer.
I've seen posts on other sites that state the t-mobile defy can be used for att 3g but will not have the 1900 band, is this true?
In that same thread I saw someone claiming that you can get both. On gsm arena I see that some defy's should have 850/1900.
What version supports both the 850/1900 bands for 3g?
Thank you,

I've brought this up in another thread and there was no reply. From what I read there is two issues here. First is the hardware and then the ROM you flash your defy with (firmware). They both need to support the frequency. I suspect the hardware is the key.
So if your phone hardware does not support a frequency I don't think you can switch it by any firmware. (This is all about 3G by the way, Defy is quad-band for 2G, GPRS, and supports all 2G frequencies.). I think Defy UK is 900/2100 for 3G on T-Mobile.
This could be wrong so I hope some expert will reply to confirm it - and perhaps tell us how we can check what frequency our Defy hardware/firmware supports!?

Could you try to read this forum
http://forums.whirlpool.net.au/archive/1598301

Thanks for the reply, it's a long thread on that forum and talks about just about anything (not specific to Defy + 3G). But I had read it before and had another quick look at it again today.
One thing I couldn't find was how to check what 3G frequencies your Defy has Firmware/Hardware. Anyone ?

XT535 no 3G (WCDMA 1900)
I recently bought the Defy XT535, and I didn´t take note on what frequencies did it worked on.
I have read on the thread dedicated to update the XT535 from GB to ICS that some people have problems with their 3G connection working after the update, and I think it has to do with the chinese SBF file.
I´ve also read in http://forum.xda-developers.com/showthread.php?p=11176044 you can fix your 3G connection by flashing a new SBF file.
Unfortunately, I haven´t found a SBF file that can be flashed for my device that will fix my 3G. Anyone has solved this issue already and can give me a hand?

XT535 HW didn't support WCDMA 1900. http://www.gsmarena.com/motorola_defy_xt535-4622.php
Changing baseband won't help.
Furthermore, that's thread was so old. They use "zip" patch to fix baseband, not .sbf (.sbf means to be only stock rom files.)
We now use Basebandswitcher to fix MB525-526 baseband easily.

Related

Wildfire Radio Change

hi all,
already searched but could not find a definitive answer.
basically, i have a htc wildfire a3335 (850mhz version) and accidentally flashed to an a3333 froyo (2.2.1) rom, losing the 850mhz (my carriers primary network).
obviously i need to change the radio, but have had no success so need some help.
either
1)revert radio to telstra
2)downgrade and reflash with stock 2.1 telstra rom
3)somehow force the new OTA froyo update
i currently have a generic htc rom, but i don't use the phone much, so the stock locked rom will work fine for my purposes (don't need to root or anything, just make calls).
if anyone can help and is in the local area (melbourne, australia) i will pay well for their time.
thansk in advance,
josh
Radio
If you don't have a custom recovery installed your gonna have to wait for alpharev, or search for the telstra froyo ruu on shipped-roms.com (which I don't think exists).
If you do have one like CWM or AmonRa, you can check this tread, I think that there's a link for the "flashable" telstra radio so you don't go back to a branded version...
http://forum.xda-developers.com/showthread.php?t=955203
Edit: here's the link for telstra 2.1 http://shipped-roms.com/download.ph...45.55.24_3.35.15.31_release_138758_signed.exe
If you don't have a custom recovery installed you can check this tread to downgrade to telstra stock... http://forum.xda-developers.com/showthread.php?t=921752
If you need any more help just PM me...
juanchotolas said:
If you don't have a custom recovery installed your gonna have to wait for alpharev, or search for the telstra froyo ruu on shipped-roms.com (which I don't think exists).
If you do have one like CWM or AmonRa, you can check this tread, I think that there's a link for the "flashable" telstra radio so you don't go back to a branded version...
http://forum.xda-developers.com/showthread.php?t=955203
Edit: here's the link for telstra 2.1 http://shipped-roms.com/download.ph...45.55.24_3.35.15.31_release_138758_signed.exe
If you don't have a custom recovery installed you can check this tread to downgrade to telstra stock... http://forum.xda-developers.com/showthread.php?t=921752
If you need any more help just PM me...
Click to expand...
Click to collapse
thanks for that
i gave the noobs guide to downgrading another shot, seems to be downgrading now. its a tricky guide, not really for noobs, but my basic computer knowledge was enough to work it out. took about 45 minutes, mainly me being scared and paranoid
will post after the telstra ruu completes, then see if i can get the froyo OTA update (which i should have just been patient for in the first place )
phew! all done.
thanks very much for the downgrade guide, was a bit scary and needed a lot of concentration, but worked without a hitch.
long story short, if you want your telstra phone updated, be patient!
I have a Telstra phone that I upgraded to a stock WWE 1.37 ROM.
It works fine on the Telstra 3G network at high speed.
The frequency it operates on is dictated by the hardware, not the firmware.
However if you swap provider to say Optus, then it will switch to 2G operation as the Telstra phone hardware works at 850 Mhz (and others) while Optus netwrok runs at 900Mhz for 3G operation. Therefore the phone will drop back to the 2G frequencies and network and therefore run slower.
Go to shipped roms and select an HTC WWE rom (but not Froyo) and you will run at full speed. Likewise the custom ROMS will be fine also.
fwnsp said:
phew! all done.
thanks very much for the downgrade guide, was a bit scary and needed a lot of concentration, but worked without a hitch.
long story short, if you want your telstra phone updated, be patient!
Click to expand...
Click to collapse
Glad to hear that you could fix it.
By the way, a lot of us had to learn android the hard way!
So welcome to the forums!
lemming999 said:
Optus netwrok runs at 900Mhz for 3G operation. Therefore the phone will drop back to the 2G frequencies and network and therefore run slower.
Click to expand...
Click to collapse
i dont think this is correct, 900mhz is optus's copy of telstra's country nextG network, called 'yesG' and is only for rural/remote areas
in most places optus etc run 3g on 2100mhz
i have a testra wildfire unlocked running virgin (optus network) 3g/hdspa fine, and i use a virgin dongle with an parabolic external antenna that only works on 2100
since unlocking ive flashed CM7 and a diff radio to get gps working, but i havnt tested to see if i lost 850 support. i will want this back though (if gone) at some stage so will be looking into this more.
haydent said:
since unlocking ive flashed CM7 and a diff radio to get gps working, but i havnt tested to see if i lost 850 support. i will want this back though (if gone) at some stage so will be looking into this more.
Click to expand...
Click to collapse
I don't think flashing the radio to 3.35.20.10 makes any difference to Telstra's 850 availability.
I am fairly sure that Carnarvon only has the 850 frequency, and I am still getting a 3G indication and 2.5 Mbps download speeds (which is about normal), so I think we are safe!
Cheers
John in Sunny Carnarvon - Western Australia
Flashing a newer version of the radio won't make you lose 850MHz support.
I'm running 13.55.55.24H_3.35.20.10 and when i moved back to NZ i first tried to use 2degrees as my network provider, but they run on mainly 900MHz and I couldnt get reliable reception at home, but once i switched to Telecoms XT network which is a perfect frequency match for the A3335 Wildfire (the 850/1900 from Telstra) I've had no problems with reception.
If you really want I can upload the original firmware from the Telstra rom as a flashable zip.
no problems, i will wait till i can test if it still works on 850 and was also wondering if flashing the radio that came with telstra could help get bluetooth working with CM7, but is prob more an issue with CM7

[Q] Help - can't get service using Brazilian SBF

Hi Everyone,
I recently flashed the Brazilian MS2 SBF (was using Australian Vodafone ROM) in an attempt to get 3G working here in Canada (Rogers; 850/1900).
When I flashed the Brazilian SBF, I was able to get a connection very briefly before getting an error that my SIM is not authorized for this network.
Does the Brazilian ROM institute some sort of SIM-lock? If so, has anyone got around it? I haven't had any problems with UK, Australia or original Chinese ROM (phone eBay'd from HK)
Is it confirmed that the MS2 can in fact properly baseband switch from 900/2100 to 850/1900?
Thank you for your time and help!
vastator said:
Hi Everyone,
I recently flashed the Brazilian MS2 SBF (was using Australian Vodafone ROM) in an attempt to get 3G working here in Canada (Rogers; 850/1900).
When I flashed the Brazilian SBF, I was able to get a connection very briefly before getting an error that my SIM is not authorized for this network.
Does the Brazilian ROM institute some sort of SIM-lock? If so, has anyone got around it? I haven't had any problems with UK, Australia or original Chinese ROM (phone eBay'd from HK)
Is it confirmed that the MS2 can in fact properly baseband switch from 900/2100 to 850/1900?
Thank you for your time and help!
Click to expand...
Click to collapse
u should find ur answer here:
http://forum.xda-developers.com/showthread.php?t=940828&highlight=brazilian+sbf
I had a look at that thread earlier.. but no avail. Actually it turns out they released several Milestone 2s, and not all of them are tri-band 3G. Some are dual - this is the risk of getting these phones early off of eBay. Mine is 900/2100 3G - I need 850/1900 3G. Stuck with ****ty EDGE until either 1) I move to a new country 2) my phone carrier changes infrastructure - both not happening soon.
Thanks
agent008my said:
u should find ur answer here:
http://forum.xda-developers.com/showthread.php?t=940828&highlight=brazilian+sbf
Click to expand...
Click to collapse

[Q] Android 2.2, no 850MHz 3G band available on X8 E15a

Hi Everyone,
I'm a first time poster here, so please be patient with me.
Just today I installed this ROM onto my Xperia X8 E15a:
MiniCM6-1.0.0 *Released*, Froyo Cyanogen 6.1.3 port for the X8
It works nicely and is a great, except that I can't connect to my mobile phone carrier. I am 99% certain the problem is that my carrier operates on the 850MHz frequency, and I'm guessing that the ROM I installed is supporting the E15i's supported frequencies of 900 and 2100MHz.
My phone can scan for networks and it picks up carriers that use 2100MHz, but doesn't find my carrier, who uses 850MHz.
How can I force the X8 to connect at 850MHz? I know if this can be done it will fix my problem.
Thanks to anyone who tries to help.
JC.
Update Xperia X8 with official firmwares or custom firmwares
Official versions of E15i/E15a listed in this thread. Download the appropriate version and use Flashtool.
Thanks bailey_ca
SORTED
--------
Thanks bailey_ca, love your work!
Before I encountered the above problem I bricked my phone while attempting to upgrade to Android 2.2. To get the phone to work I used FlashTools to put a 2.1 rom back onto it, but I mistakenly put on a E15i European rom instead of the US one.
The European rom is designed only to work with 900/2100MHz 3g bands, whereas I needed 850/1900/2100MHz bands, like my phone is designed to use.
I flashed back to the 2.1 rom designed for the E15a model, then up to Android 2.2, and it all works great, 3g and all.
how can i know the bands my phone is using?
I'm having a similar problem.

[Q] How to set up my Defy for Vodafone New Zealand

Fist time at this. I have read many threads, they have provided some help but not enough to make me feel confident.
I gather I need to first root the phone;
I downloaded Defy Rooter (Droid2root)- My virus protection says Rage against the cage is a trojan. Is this a false positive?
Assuming it is safe, how do I run it. It has 4 files; busybox, rageagainstthecage-arm5.bin, su, and Superuser.apk
Once it is rooted I need to change the baseband. - This is my problem with the phone. It was originally purchased as a Telecom New Zealand phone (not by me)
As it is I can use the phone only on 2G or 3G when in the main citys. I cannot get the extended 3G which covers most of the country.
Vodafone NZ uses: GSM/2G/GPRS 900/1800mhz WCDMA/UMTS/HSPA 900/2100mhz (Telecom NZ is 850/1900)
I gather I then use the baseband switcher Tool
How do I use this?
Stupid question-- Do I do all this from my PC with the defy plugged into the USB?
Phone info MB525
Android 2.2.2
Baseband info EPU93_u_00.59.02
Kernal version 2.6.32.9-ga8343de
[email protected] 12#1
Build 3.4.2-145
it has the Bayer Camera
I tried to avoid posting this and searched the forum many times but I still need help.
Thanks Ken
Surly someone can help.
Help Please
Kremin said:
Fist time at this. I have read many threads, they have provided some help but not enough to make me feel confident.
I gather I need to first root the phone;
I downloaded Defy Rooter (Droid2root)- My virus protection says Rage against the cage is a trojan. Is this a false positive?
Assuming it is safe, how do I run it. It has 4 files; busybox, rageagainstthecage-arm5.bin, su, and Superuser.apk
Once it is rooted I need to change the baseband. - This is my problem with the phone. It was originally purchased as a Telecom New Zealand phone (not by me)
As it is I can use the phone only on 2G or 3G when in the main citys. I cannot get the extended 3G which covers most of the country.
Vodafone NZ uses: GSM/2G/GPRS 900/1800mhz WCDMA/UMTS/HSPA 900/2100mhz (Telecom NZ is 850/1900)
I gather I then use the baseband switcher Tool
How do I use this?
Stupid question-- Do I do all this from my PC with the defy plugged into the USB?
Phone info MB525
Android 2.2.2
Baseband info EPU93_u_00.59.02
Kernal version 2.6.32.9-ga8343de
[email protected]d 12#1
Build 3.4.2-145
it has the Bayer Camera
I tried to avoid posting this and searched the forum many times but I still need help.
Thanks Ken
Surly someone can help.
Click to expand...
Click to collapse
Can anybody help with this?
Bump
Bump, Help please
You mean to ask how to change baseband right?
Ever try this yet? http://forum.xda-developers.com/showthread.php?t=1052745
And Defy with HSPA 850/2100 can't use HSPA 900, no matter what baseband you change. It's in hardware.
intemptesta said:
You mean to ask how to change baseband right?
Ever try this yet? http://forum.xda-developers.com/showthread.php?t=1052745
And Defy with HSPA 850/2100 can't use HSPA 900, no matter what baseband you change. It's in hardware.
Click to expand...
Click to collapse
Thanks, Yes have seen this but I need to get root access first to get the files to send him.
Didn't you get your device rooted? Then look for SuperOneClick, easy to use but got false detect by antivirus so disable them first.
intemptesta said:
Didn't you get your device rooted? Then look for SuperOneClick, easy to use but got false detect by antivirus so disable them first.
Click to expand...
Click to collapse
Have now got it rooted. Next step Base Band Switch
Question: Is the Base Band Switcher run from the Defy or from a PC
I can find plenty about it but this is not mentioned. Probably a stupid question.
Do I try any set up that has the required frequencies or do I need a set specific to my area ie New Zealand and Carrier Vodafone?
Thanks in advance
It's android app (apk) http://forum.xda-developers.com/showthread.php?t=1052745
Try finding your country and your baseband, or it could be any that work for you, just try.
Solved...hopfully. Need to leave the home area to confirm.
Thanks the assistance. I had all the required files, just had not worked out how to put them on the defy.
Now have CWM installed and baseband switcher.
Turns out my baseband was on Singapore/ Indonesia. Am trying the Cent Europe one. It looks like the correct bands I need 900/2100
We will see.
Thanks intemptesta
You got me onto the right track

Alcatel One Touch POP D5 BASEBAND

Hello guys, is my first time here
I need help with ... baseband change is possible? because i'm living in Argentina, and this cellphone have 3G: 900/2000
and here use in 850 and 1900 .. mtk not only allows other options mark 2000 and 900
thank you
sorry for being too late...
first of all. you seem like you want to change your baseband firmware???
right?
it's possible but not counseling you to flash your radio (baseband firmware) unless your phone is having network issues (3G network strength, connecting to towers, wifi problems ...)
but if it's only choice you have.. you have to find the right radio firmware for your phone..
because that process break many phones

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