[Q] JPA vs JPM GPS performance - Galaxy S I9000 Q&A, Help & Troubleshooting

Is anyone that have tried both firmwares can give me opinion about the gps performance? with which firmware have you got better performance (real tracking movement).

I used JPM for the last two days, and impressed by the TTFF (time-to-first fix), and that the phone can receive GPS signal indoor pretty well (once in an covered carpark, and once in my room). I didn't do real tracking, but I did use gps compass map which logs the track of my car movement, and they are pretty accurate (in previous firmware, the track can be 20-50m off the road)

its the same source (JPM) The additional letters are country specific
(or not?)

Gps on jpa is very bad. Am using doc's rom
Sent from my GT-I9000 using Tapatalk

I tested both with gps test and recognized,that jpm fixes with satilites with a much lower snr.
jpm fixes already at about 15 to 20,jpa starts fixing at 30.
Thats just,how it seemed to me.
My jpa was docs rom,my jpm was taca...forgot the namethat japanese sounding one
Sent from my GT-I9000 using XDA App

liebero3 said:
I tested both with gps test and recognized,that jpm fixes with satilites with a much lower snr.
jpm fixes already at about 15 to 20,jpa starts fixing at 30.
Thats just,how it seemed to me.
My jpa was docs rom,my jpm was taca...forgot the namethat japanese sounding one
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
I noticed it too. Due to this problem I have a big trouble to get a fix in JPA.
Sorry for not replying for such a long time, just noticed the notification that the thread was moved, I'm new in the XDA community.

Related

Low Quadrand Benchmark results

Hello all,
I just installed the new JPM firmware, and run Quadrand benchamrk on it.
I get less than 1000 points, wich puts this below N1 and DroidX.
I dont really tested this with the original firmware.
Is there a problem with my phone's hardware?
Or is it the firmware?
Our phone should be similar to N1, right?
How much points do you get with this firmware?
Thanks!
EDIT:
- I format and wipe all data before flashing.
- Its rooted.
This is usually how the SGS scores without lagfix on eclair... But quadrant doesn't exactly give you accurate real-life usage performance statistics...
Sent from my Samsung Galaxy S GT-I9000 using Tapatalk Pro
hm... Maybe it s good idea to apply the lag fix?
I think you should just wait for the official froyo release for SGS from Samsung.... It's literally just around the corner now! Otherwise, you can try (and I personally recommend) RyanZA's awesome, OCLF 2.0 since it's the simplest to use...
Sent from my Samsung Galaxy S GT-I9000 using Tapatalk Pro
Using the lag fix will get you 2000points. Helps the file system speed
Sent from my GT-I9000 using XDA App
Greate. i apply the lag fix and get 1800 points now.
The quadrand bench probably dont messure real world usage, but it was breaking my psych..
It could be subjetive, but i think appbrain listing of installed application runs a little faster.
Thanks!

[Q] possible returning to sgs

Hello!I was an owner of a galaxy s phone and thinking of trading my desire Z, for a galaxy s again in case a few of the issues the phone had, are fixed by now..
so here i go :
1) does the new voodoo sharpness fix really make a difference?i used to hate how text looked like when zoomed back when i had sgs..the colour fix seems to be great from the photos i have seen..But does the sharpness hack actually make up for the unused subpixels?
2) has there been any fixes on the GPS scene?With my curent phone i can get gps lock in 5 seconds inside the house..i am not asking for something as insane, but is it possible to get fixes now?
3)have lag fixes evolved the last 3 months?I remember using xda lag fix but the phone still was unresponsive at times..
4)Any cm7 ports for sgs yet?
chris2busy said:
Hello!I was an owner of a galaxy s phone and thinking of trading my desire Z, for a galaxy s again in case a few of the issues the phone had, are fixed by now..
so here i go :
1) does the new voodoo sharpness fix really make a difference?i used to hate how text looked like when zoomed back when i had sgs..the colour fix seems to be great from the photos i have seen..But does the sharpness hack actually make up for the unused subpixels?
2) has there been any fixes on the GPS scene?With my curent phone i can get gps lock in 5 seconds inside the house..i am not asking for something as insane, but is it possible to get fixes now?
3)have lag fixes evolved the last 3 months?I remember using xda lag fix but the phone still was unresponsive at times..
4)Any cm7 ports for sgs yet?
Click to expand...
Click to collapse
1. Personally, I don't notice that much of a difference with Voodoo sharpness. You really can't fix it. All PenTile matrix displays look like this.
2. GPS seems to be a hit and miss. I can get a lock in 10 seconds on average.
3. Lag does not exist anymore. Samsung stepped up the rfs with froyo builds, and either voodoo or ultimate lagfix is incorporated in almost every rom and kernel now.
4. CM7 is making great progress. There are still a few issues that need to be resolved, but you can go build it and try it out for yourself right now.
magicman0 said:
1. Personally, I don't notice that much of a difference with Voodoo sharpness. You really can't fix it. All PenTile matrix displays look like this.
Click to expand...
Click to collapse
I will rethink about it then..Even when i held my sgs next to my old slcd desire the different was worlds appart..i will still like to hear more opinions please..
Using hardcores kernel seems to make this thing fly, so lag is no longer an issue IMHO.
My gps locks within 10 seconds inside and faster outside, this is using one of the recent modems.
I never had an issue with the sharpness of the display so I can't comment on that front.
Sent from my GT-I9000 using XDA App
has there been any fixes on the GPS scene?With my curent phone i can get gps lock in 5 seconds inside the house..i am not asking for something as insane, but is it possible to get fixes now?
Likewise on my SGS
3)have lag fixes evolved the last 3 months?I remember using xda lag fix but the phone still was unresponsive at times..
No lag on latest firmware .
jje
With gingerbread gps has been sorted out. But its only in beta wait till that's released and move back.
Sent from my GT-I9000 using XDA App
More comments on the voodoo sharpness fix please
Thank you all so much for answering
chris2busy said:
More comments on the voodoo sharpness fix please
Thank you all so much for answering
Click to expand...
Click to collapse
bump
10char
iammodo said:
With gingerbread gps has been sorted out. But its only in beta wait till that's released and move back.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Does this really fix the gps problem? I was playing around with the thought to send the phone back to repair.. So is the fix AND the accuracy fixed in gingerbread? So no more 30m offset sometimes and waiting for a fix for minutes?
chris2busy said:
More comments on the voodoo sharpness fix please
Thank you all so much for answering
Click to expand...
Click to collapse
The problem isn't really with the software, its hardware oriented, so Voodoo sharpness can't really do anything about the "spotty" appearance of the display. This post helps to show the difference between the PenTile matrix used in our phones and a conventional RGB layout.
magicman0 said:
The problem isn't really with the software, its hardware oriented, so Voodoo sharpness can't really do anything about the "spotty" appearance of the display. This post helps to show the difference between the PenTile matrix used in our phones and a conventional RGB layout.
Click to expand...
Click to collapse
Yea..i know all about it..silly RGBR system...but if the voodoo hack is in reality as effective as it appears in the photos here
http://project-voodoo.org/color
and you guys could confirm this, i am going to trade in for an sgs within the week
chris2busy said:
but if the voodoo hack is in reality as effective as it appears in the photos here
http://project-voodoo.org/color
and you guys could confirm this, i am going to trade in for an sgs within the week
Click to expand...
Click to collapse
Its nowhere near as effective in real life as it is in those pictures. And you have to remember that the photos are simluated. Its likely that a regular screenshot was taken and over sharpened in an image editor like photoshop.
My eyes are very sharp, so thats why I hate reading text on this display(but not a deal breaker, I still love my phone). Other people I know don't see the ""spottiness" at all. In my opinion, if you can see the spottiness because you have good/average eyes, Voodoo sharpness won't really change much for you.
I wouldnt trade super amoled for anything else (except maybe super amoled +). Sure, pentile isn't super sharp but its a small price to pay for superb contrast and great colours. Trade it and try hardcores kernel with sharpness + color fix.
Sent from my GT-I9000 using XDA App

[Q]Upgrading to 2.3....worth it?

Hello guys,
First i'd like to thank the forum for all the support and knowledge i've gained reading tons of posts
Well i upgraded from 2.1 to 2.2 like 3 months ago, running a custom rom which works fine but it suddenly crashes or some apps hung till i feel like throwing the phone to a wall ( has not happend yet ) so im checking everything about gingerbread and to be honest im feeling tempted to try it out.
here's my main concern, battery life, for the moment my phone manages to survive around 35hours with 3g on most part of the day ( juice defender helped me alot), but this random crashing is starting to drive me mad.
so now, which rom would you recommend for what i've seen darky and juwe's are like the top ones.
so tell me guys, which one would you suggest
this question might sound stupid, but i need opinions to be honest.
Regards
p.d. sorry if i screwed up at writting, ain't my first language
You should just try them and see if any is to your taste. I myself stick to stock roms. Right now the latest 2.2.1 which is rock solid, no complaints and excellent battery life. The gingerbread roms still have some problems and people are reporting battery drain on them although I used a few before and had no such problems.
No
I have been using 2.3 for some time, but I don't think it is worth upgrading. Nothing new in Android and it hasn't been very stable for me. GPS seems to be worse too, getting a fix takes ages.
My experience:
-- battery life far behind (Using Voodoo kernel on Ginger or CM7 VS Hardcore kernel on Froyo)
+ GPS a bit better
+ Better speed (very fluid), but it was already good in Froyo with Hardcore's kernel
+ Web browser a bit better thanks to the improved speed I guess
+ Gtalk with audio and video is possible
As I don't need battery life so much since I'm not on vacation at the moment, I prefer to use Gingerbread daily. I hope that thanks to future releases from Samsung and Hardcore's kernel, or improvements to CM7 we will reach the battery life we had with Froyo someday.
If I was in need of battery life, I would stick with Froyo for now.
To be completely honest, I use custom ROM's anyways, and there isn't a whole lot I notice different in 2.3 over 2.2. I have noticed improved GPS connectivity, and slightly better battery life.
If you are having problems with 2.2, I would suggest making an upgrade.
IMO what you get in 2.3 vs. 2.2 is the Android OS bug. And that's pretty much the only "important" change.
I'm considering downgrading, as a phone with 6 hour battery is useless...
Not sure on some of the custom rom's but was using 2.3.3 XXJVO stock for a couple days and had no trouble, battery life was much the same as what I had to stock 2.2
Trying to get gingerreal working to give that a crack.
I'm on JVO now but I still think JPY is better.
For me, I don't see any significant improvement on Gingerbread over Froyo 2.2.1
I only see some annoying faults in JVO that sometimes I makes me wanna return to JPY.
Iv'e used stock JVB and had 36 hours average on both of the phones we have. Then I moved to Tweaky's JVH based rom and saw an increase in speed, but battery life plummeted to 12 hours without fixes, 24 max with fixes. Went to MIUI 4 for a day and found it looked like a copy of iOS and dropped it like it's hot after 8 hours of playing with it. Now one is on Darky's 10.1 and battery life is improved to 24 hours of heavy use. We skied Whistler last weekend, so music is running, gps on the Whistler tracking app, Bluetooth for the motorcycle intercoms strapped to the helmets for 6 hours at 0 Celsius. And I have yet to apply the fixes recommended in Darky's thread. Wifi is always on as well.
Granted batt life is not nearly as long as stock JVB, but decent enough for what we do.
I've also attached screens of the last 14 hours of usage with WiFi and Bluetooth running. Again without the recommended fixes, and it's still at 84%.
I see more possible cons than pros ill just install a stock 2.3 for the moment if it doesn't work for me ill get back to froyo
Thanks for the feedback everyone
Sent from my GT-I9000 using Tapatalk
RorixRebel said:
I see more possible cons than pros ill just install a stock 2.3 for the moment if it doesn't work for me ill get back to froyo
Thanks for the feedback everyone
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Give it a go ....why not?
battery life is excellent "IN MY EXPERIENCE" (don't believe everything you read)...give yourself a fighting chance though...suggest
backup
factory reset with internal USB format
flash
factory reset again
then judge for yourself.
And if you do fancy going custom...yes I can thoroughly recommend Juwe 4.3.1 too
well as we speak im flashing the phone, sadly i bricked it
3 times now lol, thankfully i got my jig in here so the 2.2 stock rom i downloaded from here (http://forum.xda-developers.com/showthread.php?t=846913&highlight=stock+rom) doesn't work or im doing something wrong
sucks getting stuck at sbl.bin....
guess ill first get an stable rom then i can try with 2.3
to be fair my personal opinion is that the latest froyo firmware for me JSD is laggy and this is even with hardcores speedmod which makes things worser :/ so for now im on tweakys AOSP edition which is GRRRRRRRRRRRRRRRRRRRReat except for battery life and oh yeah the browser on gingerbread is way better than froyo with the exception its slower but smoother
Like some others, I've gone from JPY 2.2.1 to JVO 2.3.3
Honestly, if you're on a 2.2.1 rom, you won't gain too much by upgrading to Gingerbread. It's not like Eclair=>Froyo.
If you're on 2.2 still, then go for it - however, 2.2.1 is pretty much solid with fewer bugs.
well after an evening full of frustration and amusement
im on 2.3.3, ill test it out for couple weeks and will share my thoughts about it
as a side note, Mexican sgs are so freaking hard to flash to GB srsly
thanks everyone
whaave said:
IMO what you get in 2.3 vs. 2.2 is the Android OS bug. And that's pretty much the only "important" change.
I'm considering downgrading, as a phone with 6 hour battery is useless...
Click to expand...
Click to collapse
I'd go along with that - though the bug has only appeared once in the last two weeks. Re-booting sorted it. Apart from that I see no other changes.
P.S. My phone has just re-booted itself. Been reported elsewhere I seem to recall!!!!!
I have tried Juwe's Smart edition, simply honey and Darky 10.1 but all of them were slow compared to Darky 9.5 with hardcore's kernel. 2.3.3 wasnt that smooth and it was buggy.
Wtf is that browser? They tried to make it like iphone but stupid Samsung forget that in iphone if u touch the status bar the page goes all the way up. However in 2.3.3 when u read tons of pages, you have to scroll patiently to the top. Its so annoying...
Besides I couldn't see any significant battery saving
So I returned back to Darky 9.5 and very happy with it...
only one reason for me why I use Gb JVH: finally I have a free professional email app! The tab-like mail app from sgsii. works great! all else works just like froyo.
Sent from my GT-I9000 using XDA App
well im now running 2.3.3 JVH with Darky's 10.1, so far the performance is pretty good
and the battery life is amazing
10 hours up and still 83% left, im pretty happy with the outcome
benoitb85 said:
My experience:
-- battery life far behind (Using Voodoo kernel on Ginger or CM7 VS Hardcore kernel on Froyo)
+ GPS a bit better
+ Better speed (very fluid), but it was already good in Froyo with Hardcore's kernel
+ Web browser a bit better thanks to the improved speed I guess
+ Gtalk with audio and video is possible
As I don't need battery life so much since I'm not on vacation at the moment, I prefer to use Gingerbread daily. I hope that thanks to future releases from Samsung and Hardcore's kernel, or improvements to CM7 we will reach the battery life we had with Froyo someday.
If I was in need of battery life, I would stick with Froyo for now.
Click to expand...
Click to collapse
I have to tell, I'm now using the Speedmod kernel and the battery life is much better, on par with Froyo.
So no reason not to upgrade to Gingerbread now

Question about lag and GPS

Hello,
i want to buy this phone and I have second thoughts because I 've read complains about the GPS performance.
Also I ve heard that the phone is laggy...
Is there any fix to these problems?
dimitrispgr said:
Hello,
i want to buy this phone and I have second thoughts because I 've read complains about the GPS performance.
Also I ve heard that the phone is laggy...
Is there any fix to these problems?
Click to expand...
Click to collapse
About gps, I have had no problems at all with gps. Lock within 10-20 sec. I think it is from piece to piece. About lags. Stock rom is a little bit laggy, but there is so many options to get rid of it. For example lagfix, flash different roms or custom roms.
Sent from my GT-I9000 using xda premium
You did not say which stock rom is laggy, though.
Lag was already gone in 2.2.1 and SGS has 2.3.3 or so these days.
About GPS: it dramatically improved, I think it happened with Gingerbread. You get a quick fix and accuracy is not as bad as it used to be.
Still, from what I heard, the GPS is supposed to be more accurate with the SGS II.
If I would have to buy a new Samsung smartphone I'd heavily consider the SGS II, especially since the price difference isn't that high.
Landorin said:
You did not say which stock rom is laggy, though.
Lag was already gone in 2.2.1 and SGS has 2.3.3 or so these days.
About GPS: it dramatically improved, I think it happened with Gingerbread. You get a quick fix and accuracy is not as bad as it used to be.
Still, from what I heard, the GPS is supposed to be more accurate with the SGS II.
If I would have to buy a new Samsung smartphone I'd heavily consider the SGS II, especially since the price difference isn't that high.
Click to expand...
Click to collapse
Lag was already gone in stock rom without lagfix? I can compare with CM7 and in stock lag is still there, but not as much as in JPA (2.2)
GPS: is no issue at all,it does a good job but if needed you can have apps like faster fix for more accuracy and fast locking.
LAG: very difficult to define but it's an old story, with new firmwares no issue.
In my personal opinion, choice of buying a galaxy S also depends on how you want to use your phone, if you are little bit on tech side, you will love this phone.If you don't want to mess with tech jargon's at all, look for something else than Android.
dimitrispgr said:
Hello,
i want to buy this phone and I have second thoughts because I 've read complains about the GPS performance.
Also I ve heard that the phone is laggy...
Is there any fix to these problems?
Click to expand...
Click to collapse
Lagginess can be fixed by flashing different ROMs / kernels.
GPS is poor, so depending on your purposes. If you want to find your location on google maps, check the distance - then it is fine. But if you want to use for car navigation, then you should buy a good external GPS unit with bluetooth and pair it with Bluetooth GPS for instance. I used SGS for in car navigation for one week and it was a disaster sometimes and average at other times, so very inconsistent / unreliable.
I've now stopped using my tomtom as my sgs performs really well in the car, I can normally get 5-10m accuracy
i still lag a bit using Regina 3D Launcher, not so smooth tho as for like iPhone 4s, i hate those phone tho.. they just gather information from other phones like LG, HTC Samsung etc. >:O
OP, IT IS laggy for sure. Stock roms are such a crap, they're barely usable. Cyanogen is better, but still, if you want an Android phone, better take Nexus S or some of the HTC ones.

GPS work on rooted builds? Overall User experience after root?

I'm getting ready to root and install a custom rom, will my GPS work then? Also is the tablet her experience smoother after custom rom install?
Sent from my ARCHOS 80G9 using xda app-developers app
steve adams said:
I'm getting ready to root and install a custom rom, will my GPS work then? Also is the tablet her experience smoother after custom rom install?
Sent from my ARCHOS 80G9 using xda app-developers app
Click to expand...
Click to collapse
This topic should have been created to general. GPS will work on most of the ROMs, and the lock time can be even boosted with some apps. Tutorials to boost lock time can be found on xda, but in different device forums. Use search to find them. Tablet seems to be faster for me. I also use supercharger script which keeps makes the device work better too.
Sent from my GT-I9100 using xda app-developers app
To my experience, there is one caveat, especially for overclocked models and units. The CPU produces too much heat, and the GPS receiver stops working in some finite time. Either it sees the satellites but cannot fix on them, or does not see them at all. Then the CPU and the GPS start running at their full speed, searching for the satellites, and heat even more, etc. Finally it may be so hot that you sense burnt if you touch the plastic (!) housing at the motherboard corner.
Once switched off and cooled, it works properly, but not too long - in my case, about 10 to 15 minutes. Surely it dependes heavily upon the GPS program that you are running, and upon how intensively it uses the CPU. But nowdays most programs are written in the most straight way to run the engine at full rate, without regard to the fuel tank 8-(
First I ran into this problem on 1,2GHz model, now things are even worse on 1,5GHz motherboard. I think CPU needs to be deliberately underclocked when using this device as a GPS navigator. And generally this is not the best product for this application. It makes sense using its GPS capability only occasionally, in non-critical situations, as a side benefit to its other uses (media player/internet browser/book reader/etc.)
ps. There have been numerous complains in this forum about GPS non-working in various firmwares. In such cases, check for overheating first of all! This is really a weak point in A101G9 design. Apparently the overall design was done for 1GHz CPU, and putting the 1,2 or 1,5GHz in the same housing is beyond its cooling capabilities. Or think about placing a small USB-powered fan into the modem slot, it is possible to do even without opening the device itself.
My GPS does not work atm. I was hoping that using a custom rom would fix that. Hmmmm what to do?
Sent from my ARCHOS 80G9 using xda app-developers app
steve adams said:
My GPS does not work atm. I was hoping that using a custom rom would fix that. Hmmmm what to do?
Sent from my ARCHOS 80G9 using xda app-developers app
Click to expand...
Click to collapse
Install sde, and then install [email protected] V03. Then report back here.
Sent from my GT-I9100 using xda app-developers app
My experience with Rooted Firmwares is good, the tablet runs a bit smoother if you set the cpu at the maximum clock and have it stay there, battery life is not affected from what I've seen... The Tablet does get warm if you give it "intense" tasks, but not hot enough for it to "burn" in you hands... GPS has been working 100% perfect for me... maby try installing GPS test and faster fix from the market, that might improve the gps performance.
Rooted my 101 T9 Turbo, no GPS problems at all.
Posted from Android 4.0.3
I have a G9 80. I have seen success with the following ROMs:
1.Stock ICS 4.0.7 Rooted (not the deodex version, but the original version)
2. ICS Blue
Stock 4.0.6 rooted did not work (couldn't lock onto satellites) and neither did 4.0.7 in deodex form (Sygic GPS software crashed). Make sure after flashing rooted ROM that you also download GPS Test app. Go into settings and clear AGPS data. This should allow you to lock onto satellites very quickly.
I'm currently running the ICS Blue ROM using the Sygic GPS software and loving it.
smithmal
Awesome, I'm working on getting blue loaded, but I'm running into a couple of snags. Good to hear that it works with blue. Blue with o/c will be my weapon of choice now. Hopefully going to get it loaded tomorrow, as well as jellybean on my 989 galaxy.
Sent from my ARCHOS 80G9 using xda app-developers app

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