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3g Uplink Slower on ICS B927 than ICS B926

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#1
Barry Hill

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Hi

I was running the leaked ICS B926 and found that the 3g speeds where a lot faster than on gingerbread
I was achieving 1.5Mbps uplink when using ICS 926 compared to aprox 300kbps uplink on gingerbread :D

Yesterday I upgraded to B927 using the hack downgrade method as B927 would not install over B926 for me.

Today on checking uplink speeds I am only getting the same as gingerbread aprox 300kbps


in tthe system settings status i was getting on:

Gingerbread = HSPDA:9 (HSPDA)
ICSB926 = HSPA:11 (HSPA+)
ICSB927 = HSPDA:9 (HSPDA) :(

Wonder if anyone else has noticed this and if so might some kind dev look into the diffrences to see whats causing 927 to be slower, it would be great to make sure that any custom roms would be able to achieve HSPA:11 because of the much faster uplink speed.

Hans Gruber noticed the same thing a few days ago
http://www.modaco.co...69#entry1988869

I have been back and reflashed B927 with and without vendor files and they both only connect at HSPDA:9

If someone still running B926 can check if their network suports it that it connects at HSPA:11 in connection type in status
I know that both o2 and any other provider using o2s network (eg giffgaff) suports HSPA, as i dont have the time tonight to reflash to B926 as i need my phone.

Edited by Barry Hill, 23 July 2012 - 07:57 PM.

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#2
Hans Gruber

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Yeah I noticed this when I first installed B927 and made a post but it didn't get much response so I thought maybe I'd been wrong about the HSDPA:11 on B926. I never got round to flashing back to B926 to get any proof but I'm glad you've noticed this too as it means I wasn't imagining things :P

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#3
Barry Hill

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Well at least its not me cant see why its happening as both versions seem to be using the same baseband so cant understand why one works at HSPDA:9 and the other connects at the faster HSPA:11.

But was suprised to find B927 slower of the two versions of firmware

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#4
Barry Hill

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Hans added a link to your post for completeness

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#5
Barry Hill

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If someone running on B926 can confirm that it supports HSPA:11 i would be grateful
\

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#6
tillaz

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If someone running on B926 can confirm that it supports HSPA:11 i would be grateful
\


yes, it dose

Attached File  Screenshot_2012-07-23-21-10-35.png   46.18KB   8 downloads

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#7
Hans Gruber

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Hmm interesting that they removed it from B927 then. Would that mean both releases have different RILs? Or is it controlled by something else?

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#8
tillaz

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Hmm interesting that they removed it from B927 then. Would that mean both releases have different RILs? Or is it controlled by something else?


the baseband must be different in B927 because when i flash my repack of B927 its still HSPA: 11
i have never done the full update to B927 (flashes the baseband) just B926...

just because the baseband still says 2030 it dose not mean they are still the same,
on my o2x all the gingerbread basebands show the same number in about phone
but they are all different, you need to extract the baseband to see the real version

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#9
Hans Gruber

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I'm going to flash back to B926 and see what happens

Right so I downgraded to B926 (was very easy, didn't need to mess with that "middle file" thing or change the IMEI) and it has connected straight away at HSPA:11. Very strange.

Edited by Hans Gruber, 23 July 2012 - 09:15 PM.

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#10
Hans Gruber

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OK I've now flashed Gary_J_Wright's B927 zip and it's still showing HSPA:11 so it does seem as though the baseband on B926 and B927 are different, even though they're both numbered 2030. Hopefully this is of some use to someone :)

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#11
Barry Hill

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Hans did you upgrade/downgrade to B926 first before using the zip to B927 because if so I may have to do the same as the extra speed in B926 will be usefull

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#12
tillaz

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OK I've now flashed Gary_J_Wright's B927 zip and it's still showing HSPA:11 so it does seem as though the baseband on B926 and B927 are different, even though they're both numbered 2030. Hopefully this is of some use to someone Posted Image


if B927 is intended for the uk
and HSPA:11 = HSPA +
it might be removed because the uk dose not have this network yet (last i heard it was in testing with t mobile & three uk)

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#13
Hans Gruber

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Hans did you upgrade/downgrade to B926 first before using the zip to B927 because if so I may have to do the same as the extra speed in B926 will be usefull


Yeah I flashed the huawei b926, unlocked bootloader, flashed cwm then flashed the b927 zip. I've even restored a backup originally made with b927 and it still has the faster upload

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#14
Hans Gruber

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if B927 is intended for the uk
and HSPA:11 = HSPA +
it might be removed because the uk dose not have this network yet (last i heard it was in testing with t mobile & three uk)


It seems to work on O2. The speed test app shows a big increase in upload speed. I don't think it would show HSPA:11 in the phone status if it wasn't connecting at the higher speed. I can't post any screenshots right now, typing this on an iPod touch :P

http://en.m.wikipedi...works#section_1 looks like all uk networks support it

Edited by Hans Gruber, 23 July 2012 - 10:40 PM.

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#15
Barry Hill

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Yep works fine with giffgaff (using o2 network) was getting anything from 1.5Mb to 2Mb upload speed consistently with speed test app using the maidenhead server

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#16
Barry Hill

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so when tillaz's rom gets released looks like I will be changing to B926 baseband first but can wait until then I think

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#17
tillaz

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It seems to work on O2. The speed test app shows a big increase in upload speed. I don't think it would show HSPA:11 in the phone status if it wasn't connecting at the higher speed. I can't post any screenshots right now, typing this on an iPod touch Posted Image

http://en.m.wikipedi...works#section_1 looks like all uk networks support it


but why are the hspa+ icon's not been used?
they are all there with the 4g icons... it should say H+

are we sure HSPA: 11 is HSPA+??? or is it just HSPA

my download speeds with t mobile are still the same as always 500kbs

upload speeds still crappy 60kbs

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#18
Davidoff59

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Huawei were asked by a potential buyer whether the G300 had Hsupa and they stated publicly that it had Hsdpa but not Hsupa.

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#19
Hans Gruber

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Whatever it is, it's definitely faster. I just got 1.7mbit upload on b926 and 85kbit on b927

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#20
tillaz

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Whatever it is, it's definitely faster. I just got 1.7mbit upload on b926 and 85kbit on b927


my upload speeds will always be crap as t mobile cap them lol
my download speeds are really fast though :huh:

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