Database Develop

[Q] Samsung Galaxy S Terribly Inaccurate Time-Keeping

Hi people,
This is my first post, forgive me if I'm doing it wrong or in the in wrong place...
I have an annoying issue with my Galaxy S that I have googled and cannot find any information about or whether other people are also having the same problem.
When I set the time on my device in sync with the time I get from googling the time in my location, within a day my device is already 10 minutes behind the time google says is the time in my location. (other devices synced with google's time remain synced, its just the Galaxy S that does this).
A bit of information on my Galaxy S:
I am running Android 2.2(beta) I9000XXJP3,
kernel version 2.6.32.9,
build number FRF91.372
Ext3 speed fix running on phone
I am an electronics engineer, so my first guess as to what the problem is is that the phones real-time clock is not keeping time accurately (if in fact it has a hardware real-time clock!).
If theres no real-time clock then I am guessing it may be a problem with a software implementation of the real-time clock.
Has anyone else experienced this problem? Is it a problem perhaps with running the EXT3 speed fix that is causing the software to not keep time accurately? (as i understand it, the EXT3 speed fix and modified kernel reduces the number of writes to the Samsung RFS? Could the reduced number of writes be causing the software real-time clock to not be updated on its regular intervals?)
Any help is much appreciated. I have already been late for a couple appointments because of this problem lol
Thanks peeps

install clocksync that will take care of the time problem if any
http://forum.xda-developers.com/showpost.php?p=8027593&postcount=31
in a way i think the clock problem reported by some people might be lag related
i never have lag on my phone, and coincidentally i have no problem with time being delayed
running stock JH2, no lag fix as it's not necessary, GPS quick lock in 5 sec, no jumping around or to the next lane or next street

Excellent
Thanks a bunch. I may have to consider downgrading back to a working version of 2.1.
From all of my experiences with Android 2.1 on the Galaxy S (and I have tried about 8 different releases) is that I constantly get the "black screen of despair". Installing Froyo fixed that problem to a degree, and I rarely see the black screen with the speed fix. The phone is much faster.
From others' experiences, which firmware do you guys use? Or a more relevant question, which firmware have you found to be the most stable and usable firmware?
Cheers

TeRm!n8oR said:
I am running Android 2.2(beta) I9000XXJP3,
Click to expand...
Click to collapse
There's your problem.
I'm using the JPH Froyo firmware with a lagfix. Works great for me although it has a minor lag now and then.

I'm pretty sure there is a clock in the phone. I don't think there is any phone out there without a real-time clock. I don't see what lag or file system has to do with the clock... Most likely your problem is a syncing issue. Set your time manually and turn off all auto syncing options, maybe there is problem with your operator’s clock or in the app you are using to sync.

Actually, JP3 seems to have a known issue with time keeping. I'd be guessing maybe it runs a NTP daemon with an incorrect clock skew (guessing though). Either way, heard it many times for JP3, but never any other firmware.
The reality is though, only developers should be using beta versions of froyo anyway.

Maddmatt said:
There's your problem.
I'm using the JPH Froyo firmware with a lagfix. Works great for me although it has a minor lag now and then.
Click to expand...
Click to collapse
Are there any significant improvements between JP3 and JPH? Or is JPH just a more matured development from JP3? Are there changelogs/bug fix reports anywhere available for these?
PhoenixFx said:
I'm pretty sure there is a clock in the phone. I don't think there is any phone out there without a real-time clock. I don't see what lag or file system has to do with the clock... Most likely your problem is a syncing issue. Set your time manually and turn off all auto syncing options, maybe there is problem with your operator’s clock or in the app you are using to sync.
Click to expand...
Click to collapse
I'd imagine there would be a hardware real-time clock too. What got me thinking that it may be implemented some other way is that I turned off all syncing and manually set the time last night. I made sure i had wifi off, cellular data off, GPS off, roaming disabled, etc. prior to manually setting the time through the inbuilt clock.
I woke up the next morning to find that overnight the clock had somehow offset itself 5 minutes backwards from the time kept by google for my region. This was what initially made me think perhaps the time was being kept in software with an internal battery backup or something (I haven't cracked open my phone yet to see whats under the hood in fear of hurting it ).
Weird problem however you look at it. Although I don't think the problem occurred under Android 2.1, it seems to be a recent thing (post install 2.2 + Speed Fix).

TeRm!n8oR said:
Are there any significant improvements between JP3 and JPH? Or is JPH just a more matured development from JP3? Are there changelogs/bug fix reports anywhere available for these?
Click to expand...
Click to collapse
Matured. But some people are having probs with JPH corrupting their IMEI's.. But there are no changelogs (because it's a leak). I haven't heard any complaints about the clock being wrong in JPH.
Rule of thumb is to use Eclair unless you are a developer though. Pre-release firmware isn't a good thing to use on a phone you rely on

andrewluecke said:
Matured. But some people are having probs with JPH corrupting their IMEI's.. But there are no changelogs (because it's a leak). I haven't heard any complaints about the clock being wrong in JPH.
Rule of thumb is to use Eclair unless you are a developer though. Pre-release firmware isn't a good thing to use on a phone you rely on
Click to expand...
Click to collapse
Funny you'd say that though, I've had less problems with Froyo JP3 (other than the time problem ^) than I did with any version of Eclair. Especially when it came to the black screen of despair. I could not find a way to minimise its frequency, let alone get rid of it completely with Eclair. Mind you, at the time when i put JP3 on my phone, Eclair was only up to JM6 I believe.
Maybe it'd be worth giving JM7 or JM8 a go...

[Q] Any luck with designgears JH7_OTA.zip?

Before taking the plunge I am looking for success/problem comments from those who have failed with OTA and then tried the JH7_OTA.zip approach.
I have searched and I don't see many comments yet.

It flashed fine for me but now GPS is causing my phone to lock up. Happens if I turn off GPS and just now happened in google maps while driving. Had to pull the battery to reset.

Worked great for me. GPS is working like a champ too.
Thanks to all who worked so hard on the flash.

I updated with the JH7_OTA.zip and it went well, but my phone is worse than before... laggier, bottom buttons seem less responsive (could be due to the increased lag) and the GPS will not see any satellites and much less, lock. I'm sure it's not the file... just another defective unit. This is my fourth Captivate. First two simply lost the ability to connect to 3G and WIFI, the third had a great GPS but the search function would randomly self activate and the body creaked like an old rocking chair, and my current one.

bigdoug2005 said:
It flashed fine for me but now GPS is causing my phone to lock up. Happens if I turn off GPS and just now happened in google maps while driving. Had to pull the battery to reset.
Click to expand...
Click to collapse
This happened to me. You don't need to pull the battery. Just hold the up volume button and power button for about 10 seconds and the phone will shut off.

Edit Disregard my post.

It's working great for me. I usually stream radio during the day and it usually will drop out once or twice an hour. Today, it has been streaming just perfectly with no dropouts. Thanks to all of those that got this working!!!!

No problems here, either. I did remove my previously installed LagFix first, and I flashed over JH3. GPS seems to track me a little better than before, and it does seem that perhaps the radio is working a bit better and battery life is slightly better as well.
I have the same commute on the train each morning, and pretty much do the same routine each time, so that's a good way for me to compare things after a change. This morning I noticed that my streaming radio barely cut out at all in areas where the signal is low, much less than before, and when I got into work my remaining battery PCT was a little better than usual. I applied the RyanZ lag fix from the market this afternoon and overall am pretty happy so far!

My GPS is still jacked up.
Sent from my SAMSUNG-SGH-I897 using Tapatalk

Worked great for me. everything working including the 3 button, usb, and better gps/compass. Things other people were complaining about not working. I flashed odin and rooted with update.zip before i applied this rom.

luck? Sure... but...
I went with the Cognition ROM as JH7_OTA didn't do the trick for me.. All in all I like the Cog experience (install went smoothly, seems fast, no weird errors), but the GPS is definitely not fixed. Accuracy is better in that my phone can locate me on the neighborhood level, but it is still not locking and is locating me blocks away from where I'm actually at.

Worked great for me.

No problems flashing for me. That is the answer to your question, now to issues I had.
HSUPA was not working for me. So I did the revert HSUPA to get 3G back and it killed all data for me. So I did a nandroid back to my previous ROM and then I got FC so I had to Odin and then reinstall my nandroid. That is why I don't like his zip, it works fine but if you want to change ROM's you have to basically flash odin to make sure you have no issues. That is how it was for me, others might be different and then you have the nut swingers who are only for Cognition.
I will say this issue happened to me 3 times. I think the issue might stem from being unable to remove voodoo since it is packaged into his zip. Not positive why I had the issue but for the time being I am trying other alternatives.
Last edit: Just went back to his Cognition thread and see that he pulled the HSUPA zip, so it wasn't just me having issues. Unfortunately stuff like that lets me know that all in one package zips like that need to be worked on more.

flashman2002 said:
I will say this issue happened to me 3 times. I think the issue might stem from being unable to remove voodoo since it is packaged into his zip. Not positive why I had the issue but for the time being I am trying other alternatives.
Click to expand...
Click to collapse
you probably should have removed the voodoo lagfix to try to flash other roms since clockwork DOES NOT work with voodoo
alternatively you can install cognition, and install a different kernel if you dont want voodoo lagfix...

flashed it and it's great! except the gps is kind of on and off.

Do any of the cognition versions have a gps fix?

I'm running the stable cognition 2.1 version.
Or do the 2.2 cognition versions have a gps fix in them?
I hate running beta versions which is why I'm not running 2.2.
Tia!
Sent from my broken no gps-having SAMSUNG-SGH-I897 using XDA App

There is no real GPS fix that I know of. You can play with the lbstestmod to try and improve performance.
Captivate
Cog 2.2

Latest CoG version runs great.
GPS works well in the car but you need to have in a dock on the window. If you have it on the chair, wont work, it will tell you that you're in Moscow

None of the 2.2 versions have any modifications for GPS. Some of the earlier 2.1 versions did, you can check DG's download page and the change log shows whats in each and when he removed the "fixes".
I have had better luck with the 2.2 versions but Im on my 3rd captivate and I can say that my 1st one sucked in comparison with me 2nd and 3rd. My first was just a lemon, I hosed the second and got a replacement as the 3rd. The only setting that has seemed to make much of a difference for me is going with cold start versus hot start but that could just be me and what I "think" helped.

icezar1 said:
Latest CoG version runs great.
GPS works well in the car but you need to have in a dock on the window. If you have it on the chair, wont work, it will tell you that you're in Moscow
Click to expand...
Click to collapse
Ha, tried that...didn't work. Thanks. I'm in New Hampshire...which is worse than Russia.
Sent from my SAMSUNG-SGH-I897 using XDA App

I haven't added new hardware via a software update... that would be sweet tho

Drew489 said:
I'm running the stable cognition 2.1 version.
Or do the 2.2 cognition versions have a gps fix in them?
I hate running beta versions which is why I'm not running 2.2.
Tia!
Sent from my broken no gps-having SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
If you have a phone with a working 3 button combo, try shep s rom based on the jpm i9000 build. Gps could lock in my living room and locked/tracked well while moving. The reason why I mention the 3 button combo is for some reason, that rom does not let you into down load mode with the vol + plugging in usb so you could perma brick your phone.
Sent from my SAMSUNG-SGH-I897 using XDA App

designgears said:
I haven't added new hardware via a software update... that would be sweet tho
Click to expand...
Click to collapse
Well, it works for me

Yes and no. Froyo has decent performance but soema are haveing problems. I personally see a problem if i leave lbs test mode running too long. Lbs can get a lock better than google maps. So sometimes ill use it first if i have troubke getting a lock. But it will turn the gps off after some time on my phone( icon disapears feom notification bar). After that i see the chip turn off at a regular interval in google maps. Some software works without a hitch like my tracks. Some seems to cause a similar problem. And some is touchy. I might sugest trying an alternative software like navdroyd. And if you dont get a lock at first just be patient. The error on my phone doesnt seem to be universal and only a factory reset fixes it. Still i dont recomend changing the lbs settings just incase. If you dont get a lock go outside with a clear sky and let it try for at least 10 minutes. In google maps you will need to prevent it from sleeping so you might want to try an alternative program. Once you get a lock you shouldnt have trouble getting another one. But some are still sating they have poor gps. Either there are alot of negafive people or the gps performance is inconsistant. It may just be a hardware issue. For navigation in your car you might want a bluetooth gps antenna. The phone should otherwise work for walking around.
edit: i have no dificulty navigating in my car with no accesories. Even with the phone on the pasenger seat. Other than the one error which i have been able to prevent lately my gps works great.
Sent from my SAMSUNG-SGH-I897

My GPS is fine if i give it a pretty much vertical view of the sky through the windshield. If i set it on the passenger seat or in a cup holder it performs terribly.

This should have been asked in the Roms thread instead of opening a new thread.
Thread closed

[Q][i9000] Custom Firmware?

I have the 16GB Vodafone UK Galaxy S. Today I was in a city trying to use satnav and it was rank rotten. So I thought I'd see if an upgrade would do it. I was using the very first Froyo that Vodafone came out with - I upgraded to that and hadn't upgraded since. I did have it rooted and 1 click lag fix was on it.
I upgraded to Gingerbread just there, sadly I had to do a factory reset, however it's all working.
I have realised that if I am going to put a custom firmware on it then now is just the right time to do it.
Is there one out there that's stable, and an improvement over the Gingerbread I'm using? Particularly I'd like it to fix the lag (if that still needs fixed) and even better would be fixing GPS/Satnav.

Pinpong blockbuster rom - ticks all your boxes. Get faster fix from market.
Your gps will never be 100% satisfactory in the city, in fact it will probably always be poor - no matter what custom rom you use.

Halkus said:
I have the 16GB Vodafone UK Galaxy S. Today I was in a city trying to use satnav and it was rank rotten. So I thought I'd see if an upgrade would do it. I was using the very first Froyo that Vodafone came out with - I upgraded to that and hadn't upgraded since. I did have it rooted and 1 click lag fix was on it.
I upgraded to Gingerbread just there, sadly I had to do a factory reset, however it's all working.
I have realised that if I am going to put a custom firmware on it then now is just the right time to do it.
Is there one out there that's stable, and an improvement over the Gingerbread I'm using? Particularly I'd like it to fix the lag (if that still needs fixed) and even better would be fixing GPS/Satnav.
Click to expand...
Click to collapse
Have you think about CM7? Great Rom, works well on my phone, and add many new things.

Hi Mate, I tried many custom roms and finally settled for
(ROM)GingerCriskeloV77-9LS-CamHack- SIP + NoIncRing I9000/T/M JVP 2.3.4
Cheers

Well, I managed to get it on. Booting up is weird though, it looks for a long time as if the screen is broken, but eventually ti comes on to the Blockbuster lock screen and then everything is fine. It does seem faster - but I'll only really know when I get to one of those situations where I feel the phone is frustratingly slow.
Thanks very much Woolf!
Time allowing I'll give the other roms a shot, although this Blockbuster one does seem to be good enough for me.

Sadly my phone now reboots constantly. it seems to do it when the screen locks

Halkus said:
Sadly my phone now reboots constantly. it seems to do it when the screen locks
Click to expand...
Click to collapse
Check you got the installation right for that rom, maybe you had to flash a jvp stock first or some similar omission?
Sent from my GT-I9000 using XDA Premium App

Sorry to hear you're having issues. Try flashing to a totally stock JVQ first (with repartition) once you've backed up, then if you don't like that, try a custom ROM. I don't think many JVQ custom ROMs are worth trying if you want a taste of custom ROMs. Better to try CM7 or MIUI for something fast and different.
As a side note, the best tip I've seen for fixing the dreadful GPS we have with the i9000 is to buy a Nexus S or just ANY other phone! Yes, some radios appear better than others, but nobody can prove anything and it's almost all subjective feedback. A drop in the ocean of improvement needed for satisfactory function. If you must use it, a bluetooth GPS receiver and 3rd party navigation app seem the best way to deal with it.

I've now stepped away from Blockbuster. Even doing the a perfect install it crashed often and repeatedly. I did try upgrading to the very latest and that crashed several times in the past hour. Part of the problem was the rom starts with a lockscreen that has a messaging unlock on it, but it isn't set to an app that comes with the rom, so it reboots every time. Sadly that wasn't the only problem, as I was still getting loads of reboots.
So that's out of the way.
I'm now a lot more comfortable using Odin so I'll be able to try other options. I'll try the other two suggested in this thread first of all.
Next to test is CM7.
Thanks for the help folks!
CM7 aborted. Instructions are incorrect, the file they say to download doesn't actually match the instructions so that's out. Plus it clearly states it's not suitable for day to day use... so I don't thnk the time in working out how to fix it is justified since it looks like it wouldn't be useful.
I'm going back to the original question in the thread, to say that I'm looking for something stable. I now think that a custom rom is not the way to go. However some modifications may well be.
Can anyone suggest some kind of lagfix/speedup that isn't a complete overhaul like CM7, Blockbuster etc, that is very stable and that'll make my phone faster?
Edit : Part of what I was doing to install Blockbuster was install Speedmod kernel. So I've gone and put that on, and used the clockwork mod to root it, and also convert to ext4. I think things are looking pretty fast so far. I'm not sure if there's a lagfix for this, but I'm quite comfortable just now footering around - unlike the complete rom I don't feel out of my depth. So I think I'll be ok for now.

Terrible GPS Performance

I've noticed lately that my G920T has a terrible time keeping GPS lock. Definitely a pain when I'm trying to use Waze or other GPS apps. It seems to be significantly worse in my car but overall, GPS Status reports that most satellite signal health is bad. I don't have a case on my phone, so I really have no idea what could be the issue. I've tried resetting AGPS to no effect.
I'm currently on XtreStoLite 3.3.1, running Arter's kernel, but I have experienced this issue on other kernels as well.

I've been noticing this too. Especially when driving. It seems to happen most when an app installs/updates in the background. Toggling GPS on and off in quick settings fixes it, but it's inexcusable and impossible to do while driving, when you need it most.

socal87 said:
I've noticed lately that my G920T has a terrible time keeping GPS lock. Definitely a pain when I'm trying to use Waze or other GPS apps. It seems to be significantly worse in my car but overall, GPS Status reports that most satellite signal health is bad. I don't have a case on my phone, so I really have no idea what could be the issue. I've tried resetting AGPS to no effect.
I'm currently on XtreStoLite 3.3.1, running Arter's kernel, but I have experienced this issue on other kernels as well.
Click to expand...
Click to collapse
Are you running greenify? You'd have to toggle doze off... If not download the gps conf files from online and use the appropriate one for your geographic region.

I've experienced similar, as well as some other random stuff that I won't get into here, started about 5 weeks ago. Basically seems to come down to having power saving enabled and maybe screen off (I'm almost always running power save). Francis might be onto something with doze, but it shouldn't be disabling GPS while it's actively running in an app (navigation, fitness trackers, etc) whether PS enabled or screen on or not. I've had this phone since last October, done a few different ROMs, but I'm currently stock (EPF1) with just root, no other mods and have been in that state for several months (because I've been lazy), no updates or anything. Tried removing apps that might have been installed recently at the time, to no avail. No clue what the deal is, but I'm gonna flash some custom ROMs again, which hopefully solves whatever bug issue this is.
Don't think I provided any solution, but wanted to give some input as I had similar issues.

I discovered the problem. I was using Arter97's kernel. Re flashed the kernel that comes with the ROM; GPS works much better.

socal87 said:
I discovered the problem. I was using Arter97's kernel. Re flashed the kernel that comes with the ROM; GPS works much better.
Click to expand...
Click to collapse
So that's what's going on