[Q] Regarding Baseband - XPERIA X10 Q&A, Help & Troubleshooting

Alright, so can anyone clear up what a baseband actually is?
I assume that you can flash any baseband, but there's no guarantee that your phone model (x10a, x10i) will actually have a signal with it. However, I've never seen a list or anything that shows which basebands are compatible with which models.
Basically, I just want to know which ROMs I can flash without having to worry about my phone not getting a signal. I always see that certain basebands aren't supported in some ROMs.

The only way to be sure will be just trying it for yourself. Besides as long as the flashtool works on your phone you can flash any baseband packages, as many times as you want. If you want to be conservative, find which firmware supports your carrier or which one is "generic" and choose the baseband that comes with it.
http://forum.xda-developers.com/showpost.php?p=11379826&postcount=3
In the U.S. just about any baseband works with my X10a.

hasei said:
The only way to be sure will be just trying it for yourself. Besides as long as the flashtool works on your phone you can flash any baseband packages, as many times as you want. If you want to be conservative, find which firmware supports your carrier or which one is "generic" and choose the baseband that comes with it.
http://forum.xda-developers.com/showpost.php?p=11379826&postcount=3
In the U.S. just about any baseband works with my X10a.
Click to expand...
Click to collapse
+1
I've used bb 46, 49, 52, 54, 58, 65 & 67 (can't remember them all) and I never had any signal issues. The only issue I had with different basebands had to do with txt messaging. On some of them I had trouble sending & receiving text messages, the most recent one being BB 65 which ironically was suppose to be for at&t phones .

I have never any issue too with BB in my country, been using 52, now on 67.

Baseband is controlling all the wireless connections on the phone, be it mobile network signal, WiFi, Bluetooth and GPS.
There's some confusion around basebands, you'll often read "Baseband xx makes my phone smoother" etc. This is not entirely true, since it just controls connections. However, of course, it's tied to the whole system.
As far as stock 2.1 firmware goes, you can use any baseband from .49 to .67 with any version. I remember I used .58 with the very first 2.1 SE version, .504.
Custom ROMs usually are built with some certain baseband or baseband group compatibility and it is normally declared in the OP of the ROM thread.
Baseband groups are: .49-.52 and .54-.67. The biggest difference between those two is that the first one is half-duplex baseband and the second one is full-duplex. That means that with the first batch, you can't have simultaneous mobile network connections (eg, 3G data transfers and calling) but with the second one you can. This is why some people faced problems sending multiple SMS on .49 and .52.
I hope I cleared things out for you!
Xperia X10i via Tapatalk

Excellent "Definition" I have looked everywhere and even googled, but your answer is the best!

Very helpful thanks
Sent from my X10a using XDA App

Related

Baseband for Norway, wich one?

I am wondering if there are other from Norway here that can say something about wich baseband you use.
I now use the .55 and i must say the strenght and all that i crap! I almost never get 3G here i Stavanger. And when i try using the Facebook places to tell other where i am i have a hard time getting the facebook to update the places to chose.
So i am wondering if its me using the wrong baseband that is the problem?
So tell me how your mobil network connection is and what baseband you use.
BTW i use Onecall as the supplier if that means something.
I have been on 54,55 and now 58 all was working fine for me.
But i think 58 i best
I think baseband is not for a special place at all, use the baseband recommended for your rom
low 3g signal strenght is because of a bad service from your operator i guess
greetings
Wrong thread
Sent from my X10i using XDA Premium App
Thread closed, please post in the correct sections.

[Q] X10a rooted firmware issues.

I just bought a used X10a today, Not my first android but my first rooted phone, (bought it rooted and unlocked. It is running 2.2.1) and there alot of issues and I just can't seem to find out what exactly I need to do so I can actually use this phone. First off it was originally a AT&T phone, I use Cincinnati Bell so the unlock is a must.
My first big issue is no matter what I am doing swiping through menus, screens, options you name it, it is laggy and jittery and half the time wont move just goes nuts for a few seconds.
The next issue is I can not for the life of me get 3g to work, edge works but no 3g. I used the exact apn settings as my other phone which is an unlocked tmobile and works fine but not on this one.
my last problem is I am missing tons of the factory installed apps, I do not mean the bloatware and irratating things that come on phones that arent needed, but things that I really need like a music app, the maps app, the email apps, all of that. All I have are the bare bones needed to run stuff, dialer, and messaging. That wouldnt be to big of a deal but nothing on the market will download it says download unsuccessful every time for any app, So i am not able to get all the things i am missing.
Also I do not know if it matters but I feel I need to mention it, The About Phone section on the phone says it is a x10i but the phone is actually an x10a so I do not know if that has anything to do with my problem but throwing it out there.
I really like this phone but I can't use it like this. What I need to do is either downgrade it to a rooted 2.1 so I have everything and it works or get a good 2.2 rom that will actually work. The problem is I have never rooted a phone so I do not know what steps to take let alone adjusting a phone that is already rooted.
So would it be possible for me to downgrade to a proven working 2.1 rom or is there a 2.2 rom for this phone that is proven to work and not cause all these issues I am having right now?
All help is greatly appreciated,
Cody
Cody,
CBW uses TMO's 3G infrastruacture (1700+2100 frequency bands). X10a is equipped with a radio that works on AT&T's 3G bands (850+1900) but not TMO's. X10a does not work on TMO's (therefore CBW's) 3G. It's a hardware issue. For 2G you won't have any problem. Therefore the fastest data speed you can get with X10a on CBW is EDGE. On the other hand, X10i should work on CBW 3G.
I would say that what it says on the "About Phone" section probably doesn't matter. I tried a tons of custom and stock ROMs available here with a variety of radio firmware but I haven't experienced any difficulty with AT&T. Then again you are trying to use X10a on TMO.
http://forum.xda-developers.com/showthread.php?t=1012380
This should help you with some of your other problems. Rooting and flashing a ROM on X10 is very very easy, thanks to all the developers here who contributed.
With my phone already being rooted and flashed would I still do it just as if it was all stock?
My only other question is would a generic 2.1 rom still leave the phone unlocked for use with any sim?
Thanks, Cody
I'm not a tech but from what I understand and I did in the past, once SIM is unlocked, the phone will stay unlocked no matter what firmware you flash, including a generic 2.1 ROM.
Rooting and recovery are different. When you flash a stock SE 2.1 ROMs, you will lose root and recovery. That's where the flashtool comes in handy to get root and flash recovery again.

[Q] How to get 3g from provider on different baseband?

Hi,
since no one want to answer my question here: http://forum.xda-developers.com/showthread.php?t=1192804
I would like to approach this another way.
Is there any possible way to obtain 3g network from your provider? Rogers only works with 2.1.55 baseband as far as i know as i have flash the other baseband before and losing 3g network completely for example 2.1.62.
Is there a work around solution as i don't understand how these thing works and assuming Rogers will never update gingerbread consider, they are dictators of our phone.
I eagerly want to know as i am a huge 3g user and i am throwing out 3g usages under 2.3.3 as we speak.since 2.1 stock force close me every few min oppose to the current 2.3.3 which in favor of my broken/dying phone, i would like to stay on 2.3.3 as much as possible.
thanks

[Q] Flashed to Gingerbread, but Model# is X10i, not X10a

Hello,
I used the ftf file here -->)http://forum.xda-developers.com/showthread.php?t=1147970) to update to gingerbread with the flashtool
Everything works and stuff, and if I turn Data on, I get 3.5g (the H symbol comes up) but I remember I bought my phone from ATT, so it was the X10a
Will the different model# change anything on my phone, and can I change it back any way?
Encrator said:
Hello,
I used the ftf file here -->)http://forum.xda-developers.com/showthread.php?t=1147970) to update to gingerbread with the flashtool
Everything works and stuff, and if I turn Data on, I get 3.5g (the H symbol comes up) but I remember I bought my phone from ATT, so it was the X10a
Will the different model# change anything on my phone, and can I change it back any way?
Click to expand...
Click to collapse
Thats ok. Its because of the firmware you flashed. Your phone is still technically a x10a.
Im on rogers, x10a as well...but look at what it says below.
Sent from my X10i using XDA App
Is there a way to change it back, for OCD purposes...
Encrator said:
Is there a way to change it back, for OCD purposes...
Click to expand...
Click to collapse
Flash back to 2.1
Or i think u can change it in the build.prop
Sent from my X10i using XDA App
Ah Ok, thank you, I guess I'll live with the i,
thank you =)
You can change every instance of x10i in your build.prop to x10a like Patchy said but only if you used Doomlord's pre-rooted 2.3. If you are on stock you'll have to wait for root. & I imagine an x10a generic kit will roll out within the week..
I am on Rogers and also have an x10a...but on 2.1 have been using an x10i ROM for around 8 months (different roms but always x10i created roms) but never had a problem at all.
Sent from my X10i using XDA App
Encrator said:
Hello,
I used the ftf file here -->)http://forum.xda-developers.com/showthread.php?t=1147970) to update to gingerbread with the flashtool
Everything works and stuff, and if I turn Data on, I get 3.5g (the H symbol comes up) but I remember I bought my phone from ATT, so it was the X10a
Will the different model# change anything on my phone, and can I change it back any way?
Click to expand...
Click to collapse
I am about to do the same. i have x10a but will put wolfs build in .
Btw the "H" is apparently better than "3g", i have been getting greater speeds. I unbranded my phone from atnt and the H now comes up instead of the regular 3g.. only better speeds for me.
Only the "i" generic firmware has been released.
It doesn't matter because all firmwares after v2.1 include both software radios for "a" and "i".
NOTE: Flashing an "i" firmware onto your "a" phone does NOT give you "i"-frequency 3G support (and vice versa). (Hardware) radios are FIXED and cannot be changed by firmware flashing.
marksee said:
Btw the "H" is apparently better than "3g", i have been getting greater speeds. I unbranded my phone from atnt and the H now comes up instead of the regular 3g.. only better speeds for me.
Click to expand...
Click to collapse
H = HSPA = 3.5G = faster.
http://en.wikipedia.org/wiki/High_Speed_Packet_Access

[Q] VERY Intermittent Service (3G HSDPA etc)

Hi,
I have a SE Xperia X10i that I purchased the other week which I had unlocked via the SE servers in a phone shop as I wanted to explore the full potential of this phone. Now it is second hand so bear this in mind....
It was originally locked to the Three network in the UK, I was on O2.
The original phone had 2.1 Android on it.
After having it unlocked I rooted the phone and also installed xRecovery version 3 and then installed CM7-ZMOD CYANOGENMOD 7 V3 from 19/08/2011 which is Android 2.3 and also Baseband .71.. I love this ROM thanks to zdzihu for producing this.
I have a problem with my network service.. It drops in and out all the time.. sometimes and can have a full signal at one location and return to that location 2 hours later and get the dreaded (No Service).. Also if I go into searching networks.. it also says no network providers can be found.. even when I have a signal!!!!
I jave tried the SIM in another phone LG and it works fine at that location. I have also tried another SIM, 02 in the phone and I get the same network drop out behaviour.. I go into Bristol every day.. quite a klarge city in the UK and I am sure that the coverage is there.. well actually I know it's there..
Now I have I got a Baseband problem or a phone hardware problem?
Anyone that could help I would be grateful of assistance.
Many Thanks.
Anyone??
Okay as I didn't get a reply to the original post I shall try a different tact....
As I am getting very intermittent phone signals (GPRS/3G) etc and the WiFi and GPS is okay would it be possible to downgrade the BaseBand version as I assume that this is what drives the functionality of 2G and 3G signals?
I am currently on the following:
Model X10i
Android Version: 2.3.5
Baseband Version: 2.1.71
Kernel Version: 2.6.29-zdzihu-19082011
Mod Ver: ZMOD
Build Number: CM7-ZDZIHU-MOD.
I know the Basebands are location dependent, well some of them. I live in the South West of the UK if it's important
Many Thanks
Paul
You could try switching to another rom, who knows, or maybe switching to another sim card
Sent from my X10a using XDA App
Yeah I have tried 2 other sims from different operators and also about 5 different ROMS.. (Wolf, Ultima, TEAM etc) No change... I just wondered what the process was to try a different BB.. (lower version).. If not I may have a HW problem..
Thanks for the response.
pcsel said:
Yeah I have tried 2 other sims from different operators and also about 5 different ROMS.. (Wolf, Ultima, TEAM etc) No change... I just wondered what the process was to try a different BB.. (lower version).. If not I may have a HW problem..
Thanks for the response.
Click to expand...
Click to collapse
Try downgrading to 2.1 with baseband .67/.54 and see if that resolves your issue. If not, then it may indeed be a hardware fault.

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