Develop Bugs

Anyone know what Evdo rev.0 is?

I was at a friends house and i speed tested my phone and got the network type as Evdo rev0. Is this part of Network Vision?
Speedtest:
Test Date: Oct 8, 2011 1:24:37 pm
Connection Type: Evdo0
Server: Phoenix, AZ
Download: 0.97 Mbps
Upload: 0.40 Mbps
Ping: 130 ms

EVDO Rev.0 is the very first revision of EVDO. CDMA carriers in the US will either use Rev.0 or Rev.A.
Here is a breakdown of theoretical bandwidth speeds acheivable for each revision to show difference.
Rev.0: Up to 2.1Mbps downstream, up to 153Kbps upstream
Rev.A: Up to 3.1Mbps downstream, up to 1.8Mbps upstream.
Biggest difference of course is upstream capacity in Rev.A created by improved compression protocols. Sprint has announced recently to expect improvement of 3G (EVDO) speeds witht the rollout of network vision.
Hope this helps.
Sent using my Evo Shift powered by the latest CyanogenMod.

Its what the Samsung Transform has. Horrible
Sent from my SPH-D710 using xda premium

Evdo Rev.0 is garbage..
Sent from my SPH-D710 using Tapatalk

At his house with rev0 i was getting a meg, but at my house with rev A coverage i get about .25-.4 lol

3G speed versus OG EVO

I was setting up tethering on my cousins phone who has an original EVO. I decided to do a speed test and he was pulling 5mbit over 3g. I did the same test on my E4GT and only pulled .25mbit.
I'm wondering if Sprint is throttling my data rate. Both these tests were from the exact same area. The EVO consistently pulled 4-5mbit while my E4GT never got above 0.5mbit.
Is this happening to anyone else?

No, Samsung just can't design radios. Every Samsung phone on every carrier released in the last two years has had signal problems.
Sent from my SPH-D710 using Tapatalk

kingsway8605 said:
No, Samsung just can't design radios. Every Samsung phone on every carrier released in the last two years has had signal problems.
Sent from my SPH-D710 using Tapatalk
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Oh....well that's definitely disappointing. I assume it can't be fixed by a driver update?

It would be literally impossible for your cousin to get 5 mbps over 3G. Evdo rev. A, the standard Sprint uses for 3G, has an absolute maximum theoretical data rate of 3072 kbps. Are you sure that 4G wasn't on on the Evo?

dmchssc said:
It would be literally impossible for your cousin to get 5 mbps over 3G. Evdo rev. A, the standard Sprint uses for 3G, has an absolute maximum theoretical data rate of 3072 kbps. Are you sure that 4G wasn't on on the Evo?
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+1 to this ... I doubt you can get 5 mbps over 3G ... nope!

dmchssc said:
It would be literally impossible for your cousin to get 5 mbps over 3G. Evdo rev. A, the standard Sprint uses for 3G, has an absolute maximum theoretical data rate of 3072 kbps. Are you sure that 4G wasn't on on the Evo?
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I'm positive. Sprint doesn't even have 4g in our area. That's what speakeasy.net/speedtest reported. It's quite interesting that 3072kbps is the theoretical max though. Maybe something else was going on.
Guess that means I'll have to run some more tests.

The 3g speeds on this phone are comparable to the evo from what I tested, same servers speeds within 100 kbps of each other. 4g on the epic touch was better.
Sent from my SPH-D710 using xda premium

The Speedtest app is strange and unreliable. Under "tools" turn slide the animation bar all of the way off and the tests are higher. Its as if the animations effect the tests. Here's 2 screenies ..one with animation off and the other all of the way on. I read about this in the Epic forum and supposedly it makes a big difference on 3g test scores
Sent from my SPH-D710 using Xparent Blue Tapatalk

Poor Reception Fix

For those with less than great reception try this!
Dial *18 from your sprint device.
That is the number for "Sprints Cell Tower Enhancement". It will lock on your present location and boost your signal by at least one bar. You will have to do this as you move about to different locations/towers but if you are stationary and having signal issues, it can help.
Please let me know your results. Wish you luck! :good:
**EDIT**
THIS RELIES ON DIALER CODES. THAT MEANS THIS WILL NOT WORK ON ANY CYANOGENMOD BUILD
IF YOU DON'T KNOW IF YOU HAVE DIALER CODES ENABLED TRY ##RTN# (##786#) IF YOU GET VIEW OR RESET YOUR GOOD TO GO. IF NOTHING HAPPENS THIS TOOL WILL NOT WORK

hmm, id like to see more details on this

Success100 said:
hmm, id like to see more details on this
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This tool is part of the "Sprint Network Vision" rollout. This is very new, more details as they come. I'll try to get some more technical info from my peeps. You know they don't cover anything but the basics in meetings lol.

Seriously?! This seems too good to be true... I just went from 3 to 5 bars!
I'm still a little skeptical however... Will do some more testing.
Sent from my SPH-L710 using xda premium

Same here! I'm in an airport for the next 2 hours, this helped a lot.
Sent from my SPH-L710 using xda app-developers app

rockrerun said:
Seriously?! This seems too good to be true... I just went from 3 to 5 bars!
I'm still a little skeptical however... Will do some more testing.
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NICE!! Glad to hear it, please do test. I would try at work but I already have 100% reception. Makes me worry about radiation haha

Don't really see how this just got launched and is part of the Sprint Network Vision as there are posts about it that are 2 years old. Supposedly it reconnects you to the nearest Sprint tower so if there are 2 towers within range it will only connect to the nearer one, did nothing for me. I'll keep trying...and wishing!
found this http://forum.ppcgeeks.com/htc-evo-4g/131785-dial-18-when-your-signal-bad.html

Unfortunately, this can't change the laws of physics. I'm still in a near-dead zone with -101dBm signal.

I didn't see bars move but went from a solid -87 to -85
Sent from my SPH-L710 using Tapatalk 2

evoer said:
Don't really see how this just got launched and is part of the Sprint Network Vision as there are posts about it that are 2 years old. Supposedly it reconnects you to the nearest Sprint tower so if there are 2 towers within range it will only connect to the nearer one, did nothing for me. I'll keep trying...and wishing!
found this http://forum.ppcgeeks.com/htc-evo-4g/131785-dial-18-when-your-signal-bad.html
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Hmm I guess the reason it got brought up again is it will start making a bigger footprint now than two years ago. With all IDEN towers nationwide to be converted to CDMA by June 2013 you'll get better coverage and bandwith when using this code due to extra towers.
"Network Vision: Sprint will rollout LTE nationwide, reduce dropped calls by 20-30%, improve 3G speeds 30-50%, remove IDEN network and introduce Sprint Connect on CDMA, increase capacity and introduce HD calling by 2014 nationwide!"
All in all if it helps it's worth it!

pangolin.rollin said:
Hmm I guess the reason it got brought up again is it will start making a bigger footprint now than two years ago. With all IDEN towers nationwide to be converted to CDMA by June 2013 you'll get better coverage and bandwith when using this code due to extra towers.
"Network Vision: Sprint will rollout LTE nationwide, reduce dropped calls by 20-30%, improve 3G speeds 30-50%, remove IDEN network and introduce Sprint Connect on CDMA, increase capacity and introduce HD calling by 2014 nationwide!"
All in all if it helps it's worth it!
Click to expand...
Click to collapse
Uh, the Network Vision project will not add towers in any significant way. The current IDEN towers will be retired, and the 800 MHz band will be repurposed using essentially the same towers Sprint uses for 1900 MHz service. Perhaps once there is 800 MHz service in most areas, the *18 feature might do something novel (like force a shift to that band) but that is just speculation. Meanwhile, experts tell me it has been around for years and doesn't do much at all.

This didn't work on cm10
Sent from my SPH-L710 using xda app-developers app

jamcar said:
This didn't work on cm10
Sent from my SPH-L710 using xda app-developers app
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Same here.

DarkManX4lf said:
Same here.
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Click to collapse
I don't think any dialer code will work
Sent from my SPH-L710 using xda app-developers app

jamcar said:
I don't think any dialer code will work
Sent from my SPH-L710 using xda app-developers app
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Click to collapse
I guess this will only work if you are on a touch wiz Rom.

pangolin.rollin said:
Hmm I guess the reason it got brought up again is it will start making a bigger footprint now than two years ago. With all IDEN towers nationwide to be converted to CDMA by June 2013 you'll get better coverage and bandwith when using this code due to extra towers.
"Network Vision: Sprint will rollout LTE nationwide, reduce dropped calls by 20-30%, improve 3G speeds 30-50%, remove IDEN network and introduce Sprint Connect on CDMA, increase capacity and introduce HD calling by 2014 nationwide!"
All in all if it helps it's worth it!
Click to expand...
Click to collapse
If my 3g speeds are increased by 50% at the most, then I will be looking at 450kb/s down, and about 120kb/s up. That puts me 5 times the speed of dialup? Sprint is really setting its sights high.

swanysto said:
If my 3g speeds are increased by 50% at the most, then I will be looking at 450kb/s down, and about 120kb/s up. That puts me 5 times the speed of dialup? Sprint is really setting its sights high.
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ROFL... I guess it's better than nothing while we wait... LTE looming in the FAR distant future. We all are going crazy with these turtle speeds.

I had 4 bars and it dropped me down to 3
Sent from my SPH-L710 using Tapatalk 2

xCovErtWolFx757 said:
I had 4 bars and it dropped me down to 3
Sent from my SPH-L710 using Tapatalk 2
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Click to collapse
Strange, are you on the latest PRL? Try to update it and reboot and try again. Let me know if this fixes it.

pangolin.rollin said:
Strange, are you on the latest PRL? Try to update it and reboot and try again. Let me know if this fixes it.
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Click to collapse
Didn't do a thing when I was at work with a -100dB signal strength.
I'm running StrongSteve's stock modded rom. But there's only one Sprint tower in my town.

Confirmed data build prop tweaks

Ok I spent about week researching these data build props an here are the ones that work an ones that are busted. The main goal was to lock 4G HSPAP 15 an utilize HASP 11 as least as possible which it does I average on my graph 4G 95% (use to be 33%) an 3.5G 5% (use to be 67%). It also allows data rate increase but actual speeds depend on tower congestion but on uncontested towers ur speeds will increase past what it use to be on an uncontested tower an u will get a slight increase on a congested tower than what it use to be. The mod works best on wcdma if u use gsm an wcdma it switches more speraticly causing high latency (ping) an varying speeds from 1.5 mbs to 10 mbs (speeds above are for my area actual varying speeds depend on location)
Hsxpa class 1-5 confirmed 5 being the best since it utilizes all 5 of T-Mobile's frequencies on the fly
Build prop- ro.ril.hsxpa=5
Gprs class an new egprs class
Gprs 1-12 confirmed 10 being just as good as 12 meaning no difference phone utilizes the best multislot configuration on the fly so 12 just gives u more mutislots but the phone descides if its beneficial or not an adjust accordingly
Build prop- ro.ril.gprsclass=12
New egprs class
Same as gprs class but with a higher data rate
Build prop- ro.ril.egprsclass=12
HSPA category
1-10 confirmed
11-12 confirmed
13-14 confirmed
15-20 busted T-Mobile doesnt support MIMO only Dual Cell (LTE will support both)
21-24 confirmed
25-36 busted T-mobile doesnt support dual cell+MIMO , triple cell, triple cell+MIMO, quad cell, quad cell+MIMO, hexcell, hexcell+MIMO, octacell and octa cell+MIMO
Build prop- ro.ril.hsdpa.category=24
Hsupa category
1-8 confirmed
9 busted T-mobile does not support dual cell+MIMO
Buildprop- ro.ril.hsupa.category=8
Sent from my SGH-T889 using xda app-developers app

First off, thank you for taking the time and effort to study this one and not just post the mods On that note, though, I think these are pretty generally used already.
I think the biggest argument against this would be that these settings could be biased based on what area you're in and may not be as effective an other part of the US and such.

uoY_redruM said:
First off, thank you for taking the time and effort to study this one and not just post the mods On that note, though, I think these are pretty generally used already.
I think the biggest argument against this would be that these settings could be biased based on what area you're in and may not be as effective an other part of the US and such.
Click to expand...
Click to collapse
U are correct the mods are best suited for HSPAP 15 becuase of HSPA category 24 if ur in an edge or HSPA only are it wont utilize category 24 or HUSPA 8 it will only utilize HSPA category 14 and HUSPA category 5 but the HXSPA, egprs gprs are universal HXSPA is the frequencies TMobile uses ex. 1900, 1700, 2100, 900 and 850 mhz but after the LTE roll out 2100, 900 and 850 will be non exsistant becuase the 1700 mhz band will host LTE an the 1900 mhz band will host HSPAP so HXSPA build prop will have to ne re edited to HXSPA 2 an gprs/egprs class will be none existant so u will have to remove those build props since they rely on the 2100, 950 and 850 mhz bands that Tmobile will be getting rid of
Sent from my SGH-T889 using xda app-developers app

Slow HSPA+ 4G speeds on t-mobile. How to increase?

My Gnex is on t-mobile's $20 unlimited, non-throttle data plan. My speedtest.net app only go up to 6-7Mbps. Max. Average is around 6Mbps.
How can I increase my download speed? I live in an area where my cell signal is excellent, at around -57 db.
I am using a new 4G sim card. If that's even a question.
-My rom is AOKP JB Milestone 1 with Franco Kernel Milestone 6 with baseband XXLH1
Q's
1) Is cell signal positively correlated with data speeds? If I have very good cell phone reception, should I have great data speeds as well?
2) I live in the SF Bay Area (San Jose/Santana Row). What is your experience?
3) What ROM/ Kernel/ baseband are you using?
You help would be appreciated to boost my downloads!

your speeds are fine, where they are supposed to be. the speeds depend on network traffic. top speeds will be in the middle of the night. many get speeds under 1mbps, thats considered slow, not 6-7mbps.

I too have the ($30) unlimited 4G rate pan and I usually avg around 5-6 down and 1.5 up. While I'd take higher speeds, those averages are more than fine for me, especially considering I literally got 0.10 down from Sprint on my E4GT.
Sent from my Galaxy Nexus using xda app-developers app

if you have root, you can add these lines to your build.prop then reboot. that might help you a little..
ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=20
ro.ril.hsupa.category=7

simms22 said:
if you have root, you can add these lines to your build.prop then reboot. that might help you a little..
ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=20
ro.ril.hsupa.category=7
Click to expand...
Click to collapse
What does these lines do?

Mach3.2 said:
What does these lines do?
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Click to collapse
it should let your speeds hit the max faster. max being what is available at your network at the time. it might also let you see slightly higher speed on average. just add them to the end of your build.prop, save it, then reboot for it to take affect. this is for tmobile(or other gsm carriers).

simms22 said:
if you have root, you can add these lines to your build.prop then reboot. that might help you a little..
ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=20
ro.ril.hsupa.category=7
Click to expand...
Click to collapse
I, don't, knooww.... Are you sure this works? What are your experience? Is it placebo?

lemonspeakers said:
I, don't, knooww.... Are you sure this works? What are your experience? Is it placebo?
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Click to collapse
it would depend on your local network. some it helps, some it doesnt. in nyc, it helps me out. i make sure its one of the first things i add after any rom flashing.

that looks like good speed to me. I got around the same speed, sometimes like 8~10 with my tmo sim so it's correct speed.

I have Verizon LTE form about 2 years now and I have hit over 10MB/sec only about 4 times... Otherwise I hover around 5... I wouldn't complain about that speed.. 6MB/Sec is a good speed to me

Try run the speedtest on the computer tethering to your phone. I got 5-6 on my phone but 9-10 on my computer.
Sent from my Galaxy Nexus using xda app-developers app

altimax98 said:
I have Verizon LTE form about 2 years now and I have hit over 10MB/sec only about 4 times... Otherwise I hover around 5... I wouldn't complain about that speed.. 6MB/Sec is a good speed to me
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I think you mean mbps not MB/sec?

simms22 said:
it would depend on your local network. some it helps, some it doesnt. in nyc, it helps me out. i make sure its one of the first things i add after any rom flashing.
Click to expand...
Click to collapse
Indeed, climbs to the max speed faster.

Thanks for the build.prop edits. Doing this really helped my StraightTalk ATT version.

Sdobron said:
I think you mean mbps not MB/sec?
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Yes Lol.... The funny thing is I don't even remember making that post... Lack of sleep will do that to ya
Sent from my Nexus 7 using Tapatalk HD

Psh I'm getting .25Mbps on tmobiles "unlimited no throttle 4g"

Here is results from mine in West Chester, OH which is pretty average. I get about 7-10 anytime of day
Sent From My JBSourcery v5.1 Powered Crystal Ball

I usually sit around 6mbps. IDK why VZW gets 14.... anyway used just some cheap speed booster that says my speeds are 3g speeds, and it gave me once a 11mbps...
Just tried that build.prop 'fix' and now I get 3.2mbps.